一、创建一个空的项目作为存放整个项目的路径

1、选择 File——>new——>Project ——>Empty Project

2、WorkspaceforTest为项目存放文件夹。

二、maven继承：创建父-子项目，聚合工程

比如整个项目。以一个项目来演示。

|--e3-parent：父工程，打包方式pom，管理jar包的版本号。项目中所有工程都应该继承父工程。

　　|--e3-common：通用的工具类通用的pojo。打包方式jar

　　|--e3-manager：服务层工程。聚合工程。Pom工程

　　　　|--e3-manager-dao：打包方式jar

　　　　|--e3-manager-pojo：打包方式jar

　　　　|--e3-manager-interface：打包方式jar

　　　　|--e3-manager-service：打包方式：jar

　　　|--e3-manager-web：表现层工程。打包方式war

1、创建maven父工程 e3-parent

File——>New ——>Module.. ——>Maven

2、GroupId一般为公司域名倒过来写。ArtifactId写工程名字。

3、Maven home directory 在这里我选择自己安装的maven，还有User settings file 选择好本地仓库。

4、注意下e3-parent的项目路径，在WorkspaceforTest下面。

5、在e3-parent的pom.xml文件下添加<packaging>pom</packaging>,e3-parent是打成pom文件的。

6、就可以pom文件添加各种依赖了。在这里我的e3-parent的pom.xml文件如下。

e3-parent的pom.xml
  1. <?xml version="1.0" encoding="UTF-8"?>
  2.  
  3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.   <modelVersion>4.0.0</modelVersion>
  6.  
  7.   <groupId>e3.mall</groupId>
  8.   <artifactId>e3-parent</artifactId>
  9.   <version>1.0-SNAPSHOT</version>
  10.  
  11.   <name>e3-parent</name>
  12.   <packaging>pom</packaging>
  13.   <!-- 集中定义依赖版本号 -->
  14.   <properties>
  15.     <junit.version>4.12</junit.version>
  16.     <spring.version>4.2.4.RELEASE</spring.version>
  17.     <mybatis.version>3.2.8</mybatis.version>
  18.     <mybatis.spring.version>1.2.2</mybatis.spring.version>
  19.     <mybatis.paginator.version>1.2.15</mybatis.paginator.version>
  20.     <mysql.version>5.1.46</mysql.version>
  21.     <slf4j.version>1.6.4</slf4j.version>
  22.     <jackson.version>2.4.2</jackson.version>
  23.     <druid.version>1.0.9</druid.version>
  24.     <httpclient.version>4.3.5</httpclient.version>
  25.     <jstl.version>1.2</jstl.version>
  26.     <servlet-api.version>2.5</servlet-api.version>
  27.     <jsp-api.version>2.0</jsp-api.version>
  28.     <joda-time.version>2.5</joda-time.version>
  29.     <commons-lang3.version>3.3.2</commons-lang3.version>
  30.     <commons-io.version>1.3.2</commons-io.version>
  31.     <commons-net.version>3.3</commons-net.version>
  32.     <pagehelper.version>3.4.2-fix</pagehelper.version>
  33.     <jsqlparser.version>0.9.1</jsqlparser.version>
  34.     <commons-fileupload.version>1.3.1</commons-fileupload.version>
  35.     <jedis.version>2.7.2</jedis.version>
  36.     <solrj.version>4.10.3</solrj.version>
  37.     <dubbo.version>2.5.3</dubbo.version>
  38.     <zookeeper.version>3.4.7</zookeeper.version>
  39.     <zkclient.version>0.1</zkclient.version>
  40.     <activemq.version>5.11.2</activemq.version>
  41.     <freemarker.version>2.3.23</freemarker.version>
  42.     <quartz.version>2.2.2</quartz.version>
  43.   </properties>
  44.   <dependencyManagement>
  45.     <dependencies>
  46.       <!-- 时间操作组件 -->
  47.       <dependency>
  48.         <groupId>joda-time</groupId>
  49.         <artifactId>joda-time</artifactId>
  50.         <version>${joda-time.version}</version>
  51.       </dependency>
  52.       <!-- Apache工具组件 -->
  53.       <dependency>
  54.         <groupId>org.apache.commons</groupId>
  55.         <artifactId>commons-lang3</artifactId>
  56.         <version>${commons-lang3.version}</version>
  57.       </dependency>
  58.       <dependency>
  59.         <groupId>org.apache.commons</groupId>
  60.         <artifactId>commons-io</artifactId>
  61.         <version>${commons-io.version}</version>
  62.       </dependency>
  63.       <dependency>
  64.         <groupId>commons-net</groupId>
  65.         <artifactId>commons-net</artifactId>
  66.         <version>${commons-net.version}</version>
  67.       </dependency>
  68.       <!-- Jackson Json处理工具包 -->
  69.       <dependency>
  70.         <groupId>com.fasterxml.jackson.core</groupId>
  71.         <artifactId>jackson-databind</artifactId>
  72.         <version>${jackson.version}</version>
  73.       </dependency>
  74.       <!-- httpclient -->
  75.       <dependency>
  76.         <groupId>org.apache.httpcomponents</groupId>
  77.         <artifactId>httpclient</artifactId>
  78.         <version>${httpclient.version}</version>
  79.       </dependency>
  80.       <!-- quartz任务调度框架 -->
  81.       <dependency>
  82.         <groupId>org.quartz-scheduler</groupId>
  83.         <artifactId>quartz</artifactId>
  84.         <version>${quartz.version}</version>
  85.       </dependency>
  86.       <!-- 单元测试 -->
  87.       <dependency>
  88.         <groupId>junit</groupId>
  89.         <artifactId>junit</artifactId>
  90.         <version>${junit.version}</version>
  91.         <scope>test</scope>
  92.       </dependency>
  93.       <!-- 日志处理 -->
  94.       <dependency>
  95.         <groupId>org.slf4j</groupId>
  96.         <artifactId>slf4j-log4j12</artifactId>
  97.         <version>${slf4j.version}</version>
  98.       </dependency>
  99.       <!-- Mybatis -->
  100.       <dependency>
  101.         <groupId>org.mybatis</groupId>
  102.         <artifactId>mybatis</artifactId>
  103.         <version>${mybatis.version}</version>
  104.       </dependency>
  105.       <dependency>
  106.         <groupId>org.mybatis</groupId>
  107.         <artifactId>mybatis-spring</artifactId>
  108.         <version>${mybatis.spring.version}</version>
  109.       </dependency>
  110.       <dependency>
  111.         <groupId>com.github.miemiedev</groupId>
  112.         <artifactId>mybatis-paginator</artifactId>
  113.         <version>${mybatis.paginator.version}</version>
  114.       </dependency>
  115.       <dependency>
  116.         <groupId>com.github.pagehelper</groupId>
  117.         <artifactId>pagehelper</artifactId>
  118.         <version>${pagehelper.version}</version>
  119.       </dependency>
  120.       <!-- MySql -->
  121.       <dependency>
  122.         <groupId>mysql</groupId>
  123.         <artifactId>mysql-connector-java</artifactId>
  124.         <version>${mysql.version}</version>
  125.       </dependency>
  126.       <!-- 连接池 -->
  127.       <dependency>
  128.         <groupId>com.alibaba</groupId>
  129.         <artifactId>druid</artifactId>
  130.         <version>${druid.version}</version>
  131.       </dependency>
  132.       <!-- Spring -->
  133.       <dependency>
  134.         <groupId>org.springframework</groupId>
  135.         <artifactId>spring-context</artifactId>
  136.         <version>${spring.version}</version>
  137.       </dependency>
  138.       <dependency>
  139.         <groupId>org.springframework</groupId>
  140.         <artifactId>spring-beans</artifactId>
  141.         <version>${spring.version}</version>
  142.       </dependency>
  143.       <dependency>
  144.         <groupId>org.springframework</groupId>
  145.         <artifactId>spring-webmvc</artifactId>
  146.         <version>${spring.version}</version>
  147.       </dependency>
  148.       <dependency>
  149.         <groupId>org.springframework</groupId>
  150.         <artifactId>spring-jdbc</artifactId>
  151.         <version>${spring.version}</version>
  152.       </dependency>
  153.       <dependency>
  154.         <groupId>org.springframework</groupId>
  155.         <artifactId>spring-aspects</artifactId>
  156.         <version>${spring.version}</version>
  157.       </dependency>
  158.       <dependency>
  159.         <groupId>org.springframework</groupId>
  160.         <artifactId>spring-jms</artifactId>
  161.         <version>${spring.version}</version>
  162.       </dependency>
  163.       <dependency>
  164.         <groupId>org.springframework</groupId>
  165.         <artifactId>spring-context-support</artifactId>
  166.         <version>${spring.version}</version>
  167.       </dependency>
  168.       <!-- JSP相关 -->
  169.       <dependency>
  170.         <groupId>jstl</groupId>
  171.         <artifactId>jstl</artifactId>
  172.         <version>${jstl.version}</version>
  173.       </dependency>
  174.       <dependency>
  175.         <groupId>javax.servlet</groupId>
  176.         <artifactId>servlet-api</artifactId>
  177.         <version>${servlet-api.version}</version>
  178.         <scope>provided</scope>
  179.       </dependency>
  180.       <dependency>
  181.         <groupId>javax.servlet</groupId>
  182.         <artifactId>jsp-api</artifactId>
  183.         <version>${jsp-api.version}</version>
  184.         <scope>provided</scope>
  185.       </dependency>
  186.       <!-- 文件上传组件 -->
  187.       <dependency>
  188.         <groupId>commons-fileupload</groupId>
  189.         <artifactId>commons-fileupload</artifactId>
  190.         <version>${commons-fileupload.version}</version>
  191.       </dependency>
  192.       <!-- Redis客户端 -->
  193.       <dependency>
  194.         <groupId>redis.clients</groupId>
  195.         <artifactId>jedis</artifactId>
  196.         <version>${jedis.version}</version>
  197.       </dependency>
  198.       <!-- solr客户端 -->
  199.       <dependency>
  200.         <groupId>org.apache.solr</groupId>
  201.         <artifactId>solr-solrj</artifactId>
  202.         <version>${solrj.version}</version>
  203.       </dependency>
  204.       <!-- dubbo相关 -->
  205.       <dependency>
  206.         <groupId>com.alibaba</groupId>
  207.         <artifactId>dubbo</artifactId>
  208.         <version>${dubbo.version}</version>
  209.       </dependency>
  210.       <dependency>
  211.         <groupId>org.apache.zookeeper</groupId>
  212.         <artifactId>zookeeper</artifactId>
  213.         <version>${zookeeper.version}</version>
  214.       </dependency>
  215.       <dependency>
  216.         <groupId>com.github.sgroschupf</groupId>
  217.         <artifactId>zkclient</artifactId>
  218.         <version>${zkclient.version}</version>
  219.       </dependency>
  220.       <dependency>
  221.         <groupId>org.apache.activemq</groupId>
  222.         <artifactId>activemq-all</artifactId>
  223.         <version>${activemq.version}</version>
  224.       </dependency>
  225.       <dependency>
  226.         <groupId>org.freemarker</groupId>
  227.         <artifactId>freemarker</artifactId>
  228.         <version>${freemarker.version}</version>
  229.       </dependency>
  230.  
  231.     </dependencies>
  232.   </dependencyManagement>
  233.  
  234.   <build>
  235.     <finalName>${project.artifactId}</finalName>
  236.     <plugins>
  237.       <!-- 资源文件拷贝插件 -->
  238.       <plugin>
  239.         <groupId>org.apache.maven.plugins</groupId>
  240.         <artifactId>maven-resources-plugin</artifactId>
  241.         <version>2.7</version>
  242.         <configuration>
  243.           <encoding>UTF-8</encoding>
  244.         </configuration>
  245.       </plugin>
  246.       <!-- java编译插件 -->
  247.       <plugin>
  248.         <groupId>org.apache.maven.plugins</groupId>
  249.         <artifactId>maven-compiler-plugin</artifactId>
  250.         <version>3.2</version>
  251.         <configuration>
  252.           <source>1.7</source>
  253.           <target>1.7</target>
  254.           <encoding>UTF-8</encoding>
  255.         </configuration>
  256.       </plugin>
  257.     </plugins>
  258.     <pluginManagement>
  259.       <plugins>
  260.         <!-- 配置Tomcat插件 -->
  261.         <plugin>
  262.           <groupId>org.apache.tomcat.maven</groupId>
  263.           <artifactId>tomcat7-maven-plugin</artifactId>
  264.           <version>2.2</version>
  265.         </plugin>
  266.       </plugins>
  267.     </pluginManagement>
  268.   </build>
  269.  
  270. </project>

　　

7、创建e3-common，e3-common继承父工程parent。而且为了与eclipse下面一样一种好看，common工程的目录也是在WorkspaceforTest目录下，但是是继承了parent工程

File——>New——>module——>Maven

8、common工程也是在WorkspaceforTest目录下的，所以要在Add as module to选项中选择None,如下图所示

9、Parent 中选择继承的父工程e3-parent，如下图所示，再写好ArtifactId.

10、选择maven，如果没有发生改变，就可以直接下一步。

11、注意一下路径，是在WorkspaceforTest下面。

12、再在pom.xml下面添加<packaging>jar</packaging>，如下图所示。

在这个项目的pom文件如下代码所示。

e3-common的 pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2.  
  3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>e3-parent</artifactId>
  7.         <groupId>e3.mall</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.         <relativePath>../e3-parent/pom.xml</relativePath>
  10.     </parent>
  11.     <modelVersion>4.0.0</modelVersion>
  12.  
  13.     <artifactId>e3-common</artifactId>
  14.     <packaging>jar</packaging>
  15.  
  16.     <name>e3-common</name>
  17.     <dependencies>
  18.         <!-- 时间操作组件 -->
  19.         <dependency>
  20.             <groupId>joda-time</groupId>
  21.             <artifactId>joda-time</artifactId>
  22.         </dependency>
  23.         <!-- Apache工具组件 -->
  24.         <dependency>
  25.             <groupId>org.apache.commons</groupId>
  26.             <artifactId>commons-lang3</artifactId>
  27.         </dependency>
  28.         <dependency>
  29.             <groupId>org.apache.commons</groupId>
  30.             <artifactId>commons-io</artifactId>
  31.         </dependency>
  32.         <dependency>
  33.             <groupId>commons-net</groupId>
  34.             <artifactId>commons-net</artifactId>
  35.         </dependency>
  36.         <!-- Jackson Json处理工具包 -->
  37.         <dependency>
  38.             <groupId>com.fasterxml.jackson.core</groupId>
  39.             <artifactId>jackson-databind</artifactId>
  40.         </dependency>
  41.         <!-- httpclient -->
  42.         <dependency>
  43.             <groupId>org.apache.httpcomponents</groupId>
  44.             <artifactId>httpclient</artifactId>
  45.         </dependency>
  46.         <!-- quartz任务调度框架 -->
  47.         <dependency>
  48.             <groupId>org.quartz-scheduler</groupId>
  49.             <artifactId>quartz</artifactId>
  50.         </dependency>
  51.         <!-- 单元测试 -->
  52.         <dependency>
  53.             <groupId>junit</groupId>
  54.             <artifactId>junit</artifactId>
  55.             <scope>test</scope>
  56.         </dependency>
  57.         <!-- 日志处理 -->
  58.         <dependency>
  59.             <groupId>org.slf4j</groupId>
  60.             <artifactId>slf4j-log4j12</artifactId>
  61.         </dependency>
  62.     </dependencies>
  63.  
  64. </project>

　　

13、创建manager工程，与common工程的方法一样。

File——>New——>module——>Maven

14、再在pom.xml下面添加<packaging>pom</packaging>，如下图所示。

e3-common的 pom.xml文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>e3-parent</artifactId>
  7.         <groupId>e3.mall</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.         <relativePath>../e3-parent/pom.xml</relativePath>
  10.     </parent>
  11.     <modelVersion>4.0.0</modelVersion>
  12.  
  13.     <artifactId>e3-manager</artifactId>
  14.     <packaging>pom</packaging>
  15.     <modules>
  16.         <module>e3-manager-pojo</module>
  17.         <module>e3-manager-dao</module>
  18.         <module>e3-manager-interface</module>
  19.         <module>e3-manager-service</module>
  20.         <module>e3-manager-web</module>
  21.     </modules>
  22.     <dependencies>
  23.         <dependency>
  24.             <artifactId>e3-common</artifactId>
  25.             <groupId>e3.mall</groupId>
  26.             <version>1.0-SNAPSHOT</version>
  27.         </dependency>
  28.     </dependencies>
  29.  
  30.     <build>
  31.         <!-- 配置插件 -->
  32.         <plugins>
  33.             <plugin>
  34.                 <groupId>org.apache.tomcat.maven</groupId>
  35.                 <artifactId>tomcat7-maven-plugin</artifactId>
  36.                 <configuration>
  37.                     <port>8080</port>
  38.                     <path>/</path>
  39.                 </configuration>
  40.             </plugin>
  41.         </plugins>
  42.     </build>
  43. </project>

　　

15,来开始创建e3-manager-pojo、e3-manager-dao、e3-manager-interface、e3-manager-service,这四个工程最终都是打成jar包的，创建过程都是一样的，下面就只写出一个工程的创建过程。

以e3-manager-pojo为例。

16、选中e3-manager——>右击鼠标——>New——Module，因为e3-manager-pojo是e3-manager的子工程。

17、再在pom.xml下面添加<packaging>pom</packaging>，如下图所示。

18、e3-manager-pojo、e3-manager-dao、e3-manager-interface、e3-manager-service,这四个工程都是这样创建。

19、e3-manager-pojo、e3-manager-dao、e3-manager-interface、e3-manager-service,这四个工程的pom.xml文件。

e3-manager-pojo 的pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2.  
  3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>e3-manager</artifactId>
  7.         <groupId>e3.mall</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  11.  
  12.     <artifactId>e3-manager-pojo</artifactId>
  13.     <packaging>jar</packaging>
  14.     <name>e3-manager-pojo</name>
  15.  
  16. </project>

　　

e3-manager-dao 的pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2.  
  3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>e3-manager</artifactId>
  7.         <groupId>e3.mall</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  11.  
  12.     <artifactId>e3-manager-dao</artifactId>
  13.     <packaging>jar</packaging>
  14.  
  15.     <name>e3-manager-dao</name>
  16.     <dependencies>
  17.         <dependency>
  18.             <groupId>e3.mall</groupId>
  19.             <artifactId>e3-manager-pojo</artifactId>
  20.             <version>1.0-SNAPSHOT</version>
  21.         </dependency>
  22.         <!-- 添加对mybatis的依赖 -->
  23.         <dependency>
  24.             <groupId>org.mybatis</groupId>
  25.             <artifactId>mybatis</artifactId>
  26.         </dependency>
  27.         <dependency>
  28.             <groupId>org.mybatis</groupId>
  29.             <artifactId>mybatis-spring</artifactId>
  30.         </dependency>
  31.         <dependency>
  32.             <groupId>com.github.miemiedev</groupId>
  33.             <artifactId>mybatis-paginator</artifactId>
  34.         </dependency>
  35.         <dependency>
  36.             <groupId>com.github.pagehelper</groupId>
  37.             <artifactId>pagehelper</artifactId>
  38.         </dependency>
  39.         <!-- MySql -->
  40.         <dependency>
  41.             <groupId>mysql</groupId>
  42.             <artifactId>mysql-connector-java</artifactId>
  43.         </dependency>
  44.         <!-- 连接池 -->
  45.         <dependency>
  46.             <groupId>com.alibaba</groupId>
  47.             <artifactId>druid</artifactId>
  48.         </dependency>
  49.  
  50.     </dependencies>
  51.     <!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉。 -->
  52.     <build>
  53.         <resources>
  54.             <resource>
  55.                 <directory>src/main/java</directory>
  56.                 <includes>
  57.                     <include>**/*.properties</include>
  58.                     <include>**/*.xml</include>
  59.                 </includes>
  60.                 <filtering>false</filtering>
  61.             </resource>
  62.         </resources>
  63.     </build>
  64. </project>

　　

e3-manager-interface 的pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2.  
  3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>e3-manager</artifactId>
  7.         <groupId>e3.mall</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  11.  
  12.     <artifactId>e3-manager-interface</artifactId>
  13.     <packaging>jar</packaging>
  14.     <name>e3-manager-interface</name>
  15.     <dependencies>
  16.         <dependency>
  17.             <groupId>e3.mall</groupId>
  18.             <artifactId>e3-manager-pojo</artifactId>
  19.             <version>1.0-SNAPSHOT</version>
  20.         </dependency>
  21.     </dependencies>
  22. </project>

　　

e3-manager-servicer 的pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2.  
  3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>e3-manager</artifactId>
  7.         <groupId>e3.mall</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  11.  
  12.     <artifactId>e3-manager-service</artifactId>
  13.  
  14.     <name>e3-manager-service</name>
  15.    <packaging>jar</packaging>
  16.  
  17.     <dependencies>
  18.         <dependency>
  19.             <groupId>e3.mall</groupId>
  20.             <artifactId>e3-manager-dao</artifactId>
  21.             <version>1.0-SNAPSHOT</version>
  22.         </dependency>
  23.         <dependency>
  24.             <groupId>e3.mall</groupId>
  25.             <artifactId>e3-manager-interface</artifactId>
  26.             <version>1.0-SNAPSHOT</version>
  27.         </dependency>
  28.         <!-- spring的依赖 -->
  29.         <!-- Spring -->
  30.         <dependency>
  31.             <groupId>org.springframework</groupId>
  32.             <artifactId>spring-context</artifactId>
  33.         </dependency>
  34.         <dependency>
  35.             <groupId>org.springframework</groupId>
  36.             <artifactId>spring-beans</artifactId>
  37.         </dependency>
  38.         <dependency>
  39.             <groupId>org.springframework</groupId>
  40.             <artifactId>spring-webmvc</artifactId>
  41.         </dependency>
  42.         <dependency>
  43.             <groupId>org.springframework</groupId>
  44.             <artifactId>spring-jdbc</artifactId>
  45.         </dependency>
  46.         <dependency>
  47.             <groupId>org.springframework</groupId>
  48.             <artifactId>spring-aspects</artifactId>
  49.         </dependency>
  50.         <dependency>
  51.             <groupId>org.springframework</groupId>
  52.             <artifactId>spring-jms</artifactId>
  53.         </dependency>
  54.         <dependency>
  55.             <groupId>org.springframework</groupId>
  56.             <artifactId>spring-context-support</artifactId>
  57.         </dependency>
  58.  
  59.     </dependencies>
  60. </project>

　　

20、最后创建e3-manager-web工程，创建过程都与上面的四个过程一样。只是有一个地方需要注意，下面的截图会提示。

选中e3-manager——>右击鼠标——>New——Module，因为e3-manager-web是e3-manager的子工程。

只是下面需要注意一下。

21、再在pom.xml下面添加<packaging>war</packaging>，如下图所示。

22、e3-manager-web的pom.xml文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>e3-parent</artifactId>
  7.         <groupId>e3.mall</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.         <relativePath>../e3-parent/pom.xml</relativePath>
  10.     </parent>
  11.     <modelVersion>4.0.0</modelVersion>
  12.  
  13.     <artifactId>e3-manager</artifactId>
  14.     <packaging>pom</packaging>
  15.     <modules>
  16.         <module>e3-manager-pojo</module>
  17.         <module>e3-manager-dao</module>
  18.         <module>e3-manager-interface</module>
  19.         <module>e3-manager-service</module>
  20.         <module>e3-manager-web</module>
  21.     </modules>
  22.     <dependencies>
  23.         <dependency>
  24.             <artifactId>e3-common</artifactId>
  25.             <groupId>e3.mall</groupId>
  26.             <version>1.0-SNAPSHOT</version>
  27.         </dependency>
  28.     </dependencies>
  29.  
  30.     <build>
  31.         <!-- 配置插件 -->
  32.         <plugins>
  33.             <plugin>
  34.                 <groupId>org.apache.tomcat.maven</groupId>
  35.                 <artifactId>tomcat7-maven-plugin</artifactId>
  36.                 <configuration>
  37.                     <port>8080</port>
  38.                     <path>/</path>
  39.                 </configuration>
  40.             </plugin>
  41.         </plugins>
  42.     </build>
  43. </project>

　　

23、好了。到此maven聚合工程创建完成。

三、maven工程下创建resources文件夹

步骤：File——>Project Struture——>Modules——>maven工程，如果没有maven工程就点+号来添加

选择到创建resources文件夹的路径，比如图上的选择到main，右击鼠标，选择New Folder新建文件夹resources

再选择resources，右击鼠标选择Resources，可以看到resources文件夹的图标和之前不一样了，就是这样创建一个resources文件夹。再点Ok保存退出 。

很明图标都不一样了。

四、整合ssm框架

直接看项目路径，直接上代码，不懂ssm框架整合的可以百度学习下。

SqlMapConfig.xml

  1. <?xml version="1.0" encoding="UTF-8" ?>
  2. <!DOCTYPE configuration
  3.         PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  4.         "http://mybatis.org/dtd/mybatis-3-config.dtd">
  5. <configuration>
  6.  
  7. </configuration>

　　

db.properties

  1. jdbc.driver=com.mysql.jdbc.Driver
  2. jdbc.url=jdbc:mysql://localhost:3306/e3mall?charactherEncoding=utf-8
  3. jdbc.username=root
  4. jdbc.password=*****

　　

applicationContext-Dao.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
  4.        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  5.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  6.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
  7.     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
  8.     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
  9.     http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd">
  10.     <!--数据库连接池-->
  11.     <!--加载配置文件-->
  12.     <context:property-placeholder location="classpath:properties/db.properties"></context:property-placeholder>
  13.     <!--数据库连接池-->
  14.     <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
  15.         <property name="driverClassName" value="${jdbc.driver}"></property>
  16.         <property name="url" value="${jdbc.url}"></property>
  17.         <property name="username" value="${jdbc.username}"></property>
  18.         <property name="password" value="${jdbc.password}"></property>
  19.         <property name="maxActive" value="10"></property>
  20.         <property name="minIdle" value="5"></property>
  21.     </bean>
  22.     <!--让spring管理sqlsessionFactory，使用mybatis和spring整合包中的-->
  23.     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
  24.         <!--数据库连接池-->
  25.         <property name="dataSource" ref="dataSource"></property>
  26.         <!--加载mybatis全局配置文件-->
  27.         <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
  28.  
  29.     </bean>
  30.  
  31.     <!--自动扫描mapper-->
  32.     <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
  33.         <property name="basePackage" value="cn.e3mall.mapper"></property>
  34.     </bean>
  35. </beans>

　　

applicationContext-service.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
  4.        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  5.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  6.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
  7.     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
  8.     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
  9.     http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd">
  10.  
  11.     <context:component-scan base-package="cn.e3mall.service"></context:component-scan>
  12. </beans>

　　

applicationContext-trans.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
  4.        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  5.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  6.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
  7.     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
  8.     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
  9.     http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd">
  10.     <!--事务管理器-->
  11.     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  12.         <!--数据源-->
  13.         <property name="dataSource" ref="dataSource"/>
  14.     </bean>
  15.     <!--通知-->
  16.     <tx:advice id="txAdvice" transaction-manager="transactionManager">
  17.         <tx:attributes>
  18.             <tx:method name="save*" propagation="REQUIRED"/>
  19.             <tx:method name="insert*" propagation="REQUIRED"/>
  20.             <tx:method name="add*" propagation="REQUIRED"/>
  21.             <tx:method name="create*" propagation="REQUIRED"/>
  22.             <tx:method name="delete*" propagation="REQUIRED"/>
  23.             <tx:method name="update*" propagation="REQUIRED"/>
  24.             <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
  25.             <tx:method name="select*" propagation="SUPPORTS" read-only="true"/>
  26.             <tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
  27.         </tx:attributes>
  28.  
  29.     </tx:advice>
  30.     <!--切面-->
  31.     <aop:config>
  32.         <aop:advisor advice-ref="txAdvice" pointcut="execution(* cn.e3mall.mapper.*.*(..))"></aop:advisor>
  33.     </aop:config>
  34. </beans>

　　

springmvc.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
  4.        xmlns:context="http://www.springframework.org/schema/context"
  5.        xmlns:mvc="http://www.springframework.org/schema/mvc"
  6.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
  7.         http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
  8.         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">
  9.     <!--扫描controller-->
  10.     <context:component-scan base-package="cn.e3mall.controller"/>
  11.     <!--配置适配器映射器-->
  12.     <mvc:annotation-driven></mvc:annotation-driven>
  13.  
  14.     <!--配置前端控制器-->
  15.     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  16.         <property name="prefix" value="/WEB-INF/jsp/"/>
  17.         <property name="suffix" value=".jsp"/>
  18.     </bean>
  19. </beans>

　　

web.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.          xmlns="http://java.sun.com/xml/ns/javaee"
  4.          xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
  5.          id="WebApp_ID" version="2.5">
  6.     <display-name>e3-manager</display-name>
  7.     <welcome-file-list>
  8.         <welcome-file>index.jsp</welcome-file>
  9.     </welcome-file-list>
  10.  
  11.     <!--加载spring容器-->
  12.     <context-param>
  13.         <param-name>contextConfigLocation</param-name>
  14.         <param-value>classpath:spring/applicationContext-*.xml</param-value>
  15.     </context-param>
  16.     <listener>
  17.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  18.     </listener>
  19.  
  20.     <!--配置post提交乱码-->
  21.     <filter>
  22.         <filter-name>CharacterEncodingFilter</filter-name>
  23.         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  24.         <init-param>
  25.             <param-name>encoding</param-name>
  26.             <param-value>utf-8</param-value>
  27.         </init-param>
  28.     </filter>
  29.     <filter-mapping>
  30.         <filter-name>CharacterEncodingFilter</filter-name>
  31.         <url-pattern>/*</url-pattern>
  32.     </filter-mapping>
  33.     <!--spring前端控制器-->
  34.     <servlet>
  35.         <servlet-name>e3-manager</servlet-name>
  36.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  37.         <init-param>
  38.             <param-name>contextConfigLocation</param-name>
  39.             <param-value>classpath:spring/springmvc.xml</param-value>
  40.         </init-param>
  41.         <load-on-startup>1</load-on-startup>
  42.     </servlet>
  43.     <servlet-mapping>
  44.         <servlet-name>e3-manager</servlet-name>
  45.         <url-pattern>/</url-pattern>
  46.     </servlet-mapping>
  47. </web-app>

　　

 TbItem.class

  1. package cn.e3mall.pojo;
  2.  
  3. import java.util.Date;
  4.  
  5. public class TbItem {
  6.     private Long id;
  7.  
  8.     private String title;
  9.  
  10.     private String sellPoint;
  11.  
  12.     private Long price;
  13.  
  14.     private Integer num;
  15.  
  16.     private String barcode;
  17.  
  18.     private String image;
  19.  
  20.     private Long cid;
  21.  
  22.     private Byte status;
  23.  
  24.     private Date created;
  25.  
  26.     private Date updated;
  27.  
  28.     public Long getId() {
  29.         return id;
  30.     }
  31.  
  32.     public void setId(Long id) {
  33.         this.id = id;
  34.     }
  35.  
  36.     public String getTitle() {
  37.         return title;
  38.     }
  39.  
  40.     public void setTitle(String title) {
  41.         this.title = title == null ? null : title.trim();
  42.     }
  43.  
  44.     public String getSellPoint() {
  45.         return sellPoint;
  46.     }
  47.  
  48.     public void setSellPoint(String sellPoint) {
  49.         this.sellPoint = sellPoint == null ? null : sellPoint.trim();
  50.     }
  51.  
  52.     public Long getPrice() {
  53.         return price;
  54.     }
  55.  
  56.     public void setPrice(Long price) {
  57.         this.price = price;
  58.     }
  59.  
  60.     public Integer getNum() {
  61.         return num;
  62.     }
  63.  
  64.     public void setNum(Integer num) {
  65.         this.num = num;
  66.     }
  67.  
  68.     public String getBarcode() {
  69.         return barcode;
  70.     }
  71.  
  72.     public void setBarcode(String barcode) {
  73.         this.barcode = barcode == null ? null : barcode.trim();
  74.     }
  75.  
  76.     public String getImage() {
  77.         return image;
  78.     }
  79.  
  80.     public void setImage(String image) {
  81.         this.image = image == null ? null : image.trim();
  82.     }
  83.  
  84.     public Long getCid() {
  85.         return cid;
  86.     }
  87.  
  88.     public void setCid(Long cid) {
  89.         this.cid = cid;
  90.     }
  91.  
  92.     public Byte getStatus() {
  93.         return status;
  94.     }
  95.  
  96.     public void setStatus(Byte status) {
  97.         this.status = status;
  98.     }
  99.  
  100.     public Date getCreated() {
  101.         return created;
  102.     }
  103.  
  104.     public void setCreated(Date created) {
  105.         this.created = created;
  106.     }
  107.  
  108.     public Date getUpdated() {
  109.         return updated;
  110.     }
  111.  
  112.     public void setUpdated(Date updated) {
  113.         this.updated = updated;
  114.     }
  115. }

　　

TbItemMapper.class  接口

  1. package cn.e3mall.mapper;
  2.  
  3. import cn.e3mall.pojo.TbItem;
  4. import cn.e3mall.pojo.TbItemExample;
  5. import java.util.List;
  6. import org.apache.ibatis.annotations.Param;
  7.  
  8. public interface TbItemMapper {
  9.     int countByExample(TbItemExample example);
  10.  
  11.     int deleteByExample(TbItemExample example);
  12.  
  13.     int deleteByPrimaryKey(Long id);
  14.  
  15.     int insert(TbItem record);
  16.  
  17.     int insertSelective(TbItem record);
  18.  
  19.     List<TbItem> selectByExample(TbItemExample example);
  20.  
  21.     TbItem selectByPrimaryKey(Long id);
  22.  
  23.     int updateByExampleSelective(@Param("record") TbItem record, @Param("example") TbItemExample example);
  24.  
  25.     int updateByExample(@Param("record") TbItem record, @Param("example") TbItemExample example);
  26.  
  27.     int updateByPrimaryKeySelective(TbItem record);
  28.  
  29.     int updateByPrimaryKey(TbItem record);
  30. }

　　

TbItemMapper.xml

  1. <?xml version="1.0" encoding="UTF-8" ?>
  2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
  3. <mapper namespace="cn.e3mall.mapper.TbItemMapper" >
  4.   <resultMap id="BaseResultMap" type="cn.e3mall.pojo.TbItem" >
  5.     <id column="id" property="id" jdbcType="BIGINT" />
  6.     <result column="title" property="title" jdbcType="VARCHAR" />
  7.     <result column="sell_point" property="sellPoint" jdbcType="VARCHAR" />
  8.     <result column="price" property="price" jdbcType="BIGINT" />
  9.     <result column="num" property="num" jdbcType="INTEGER" />
  10.     <result column="barcode" property="barcode" jdbcType="VARCHAR" />
  11.     <result column="image" property="image" jdbcType="VARCHAR" />
  12.     <result column="cid" property="cid" jdbcType="BIGINT" />
  13.     <result column="status" property="status" jdbcType="TINYINT" />
  14.     <result column="created" property="created" jdbcType="TIMESTAMP" />
  15.     <result column="updated" property="updated" jdbcType="TIMESTAMP" />
  16.   </resultMap>
  17.   <sql id="Example_Where_Clause" >
  18.     <where >
  19.       <foreach collection="oredCriteria" item="criteria" separator="or" >
  20.         <if test="criteria.valid" >
  21.           <trim prefix="(" suffix=")" prefixOverrides="and" >
  22.             <foreach collection="criteria.criteria" item="criterion" >
  23.               <choose >
  24.                 <when test="criterion.noValue" >
  25.                   and ${criterion.condition}
  26.                 </when>
  27.                 <when test="criterion.singleValue" >
  28.                   and ${criterion.condition} #{criterion.value}
  29.                 </when>
  30.                 <when test="criterion.betweenValue" >
  31.                   and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
  32.                 </when>
  33.                 <when test="criterion.listValue" >
  34.                   and ${criterion.condition}
  35.                   <foreach collection="criterion.value" item="listItem" open="(" close=")" separator="," >
  36.                     #{listItem}
  37.                   </foreach>
  38.                 </when>
  39.               </choose>
  40.             </foreach>
  41.           </trim>
  42.         </if>
  43.       </foreach>
  44.     </where>
  45.   </sql>
  46.   <sql id="Update_By_Example_Where_Clause" >
  47.     <where >
  48.       <foreach collection="example.oredCriteria" item="criteria" separator="or" >
  49.         <if test="criteria.valid" >
  50.           <trim prefix="(" suffix=")" prefixOverrides="and" >
  51.             <foreach collection="criteria.criteria" item="criterion" >
  52.               <choose >
  53.                 <when test="criterion.noValue" >
  54.                   and ${criterion.condition}
  55.                 </when>
  56.                 <when test="criterion.singleValue" >
  57.                   and ${criterion.condition} #{criterion.value}
  58.                 </when>
  59.                 <when test="criterion.betweenValue" >
  60.                   and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
  61.                 </when>
  62.                 <when test="criterion.listValue" >
  63.                   and ${criterion.condition}
  64.                   <foreach collection="criterion.value" item="listItem" open="(" close=")" separator="," >
  65.                     #{listItem}
  66.                   </foreach>
  67.                 </when>
  68.               </choose>
  69.             </foreach>
  70.           </trim>
  71.         </if>
  72.       </foreach>
  73.     </where>
  74.   </sql>
  75.   <sql id="Base_Column_List" >
  76.     id, title, sell_point, price, num, barcode, image, cid, status, created, updated
  77.   </sql>
  78.   <select id="selectByExample" resultMap="BaseResultMap" parameterType="cn.e3mall.pojo.TbItemExample" >
  79.     select
  80.     <if test="distinct" >
  81.       distinct
  82.     </if>
  83.     <include refid="Base_Column_List" />
  84.     from tb_item
  85.     <if test="_parameter != null" >
  86.       <include refid="Example_Where_Clause" />
  87.     </if>
  88.     <if test="orderByClause != null" >
  89.       order by ${orderByClause}
  90.     </if>
  91.   </select>
  92.   <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Long" >
  93.     select
  94.     <include refid="Base_Column_List" />
  95.     from tb_item
  96.     where id = #{id,jdbcType=BIGINT}
  97.   </select>
  98.   <delete id="deleteByPrimaryKey" parameterType="java.lang.Long" >
  99.     delete from tb_item
  100.     where id = #{id,jdbcType=BIGINT}
  101.   </delete>
  102.   <delete id="deleteByExample" parameterType="cn.e3mall.pojo.TbItemExample" >
  103.     delete from tb_item
  104.     <if test="_parameter != null" >
  105.       <include refid="Example_Where_Clause" />
  106.     </if>
  107.   </delete>
  108.   <insert id="insert" parameterType="cn.e3mall.pojo.TbItem" >
  109.     insert into tb_item (id, title, sell_point,
  110.       price, num, barcode,
  111.       image, cid, status,
  112.       created, updated)
  113.     values (#{id,jdbcType=BIGINT}, #{title,jdbcType=VARCHAR}, #{sellPoint,jdbcType=VARCHAR},
  114.       #{price,jdbcType=BIGINT}, #{num,jdbcType=INTEGER}, #{barcode,jdbcType=VARCHAR},
  115.       #{image,jdbcType=VARCHAR}, #{cid,jdbcType=BIGINT}, #{status,jdbcType=TINYINT},
  116.       #{created,jdbcType=TIMESTAMP}, #{updated,jdbcType=TIMESTAMP})
  117.   </insert>
  118.   <insert id="insertSelective" parameterType="cn.e3mall.pojo.TbItem" >
  119.     insert into tb_item
  120.     <trim prefix="(" suffix=")" suffixOverrides="," >
  121.       <if test="id != null" >
  122.         id,
  123.       </if>
  124.       <if test="title != null" >
  125.         title,
  126.       </if>
  127.       <if test="sellPoint != null" >
  128.         sell_point,
  129.       </if>
  130.       <if test="price != null" >
  131.         price,
  132.       </if>
  133.       <if test="num != null" >
  134.         num,
  135.       </if>
  136.       <if test="barcode != null" >
  137.         barcode,
  138.       </if>
  139.       <if test="image != null" >
  140.         image,
  141.       </if>
  142.       <if test="cid != null" >
  143.         cid,
  144.       </if>
  145.       <if test="status != null" >
  146.         status,
  147.       </if>
  148.       <if test="created != null" >
  149.         created,
  150.       </if>
  151.       <if test="updated != null" >
  152.         updated,
  153.       </if>
  154.     </trim>
  155.     <trim prefix="values (" suffix=")" suffixOverrides="," >
  156.       <if test="id != null" >
  157.         #{id,jdbcType=BIGINT},
  158.       </if>
  159.       <if test="title != null" >
  160.         #{title,jdbcType=VARCHAR},
  161.       </if>
  162.       <if test="sellPoint != null" >
  163.         #{sellPoint,jdbcType=VARCHAR},
  164.       </if>
  165.       <if test="price != null" >
  166.         #{price,jdbcType=BIGINT},
  167.       </if>
  168.       <if test="num != null" >
  169.         #{num,jdbcType=INTEGER},
  170.       </if>
  171.       <if test="barcode != null" >
  172.         #{barcode,jdbcType=VARCHAR},
  173.       </if>
  174.       <if test="image != null" >
  175.         #{image,jdbcType=VARCHAR},
  176.       </if>
  177.       <if test="cid != null" >
  178.         #{cid,jdbcType=BIGINT},
  179.       </if>
  180.       <if test="status != null" >
  181.         #{status,jdbcType=TINYINT},
  182.       </if>
  183.       <if test="created != null" >
  184.         #{created,jdbcType=TIMESTAMP},
  185.       </if>
  186.       <if test="updated != null" >
  187.         #{updated,jdbcType=TIMESTAMP},
  188.       </if>
  189.     </trim>
  190.   </insert>
  191.   <select id="countByExample" parameterType="cn.e3mall.pojo.TbItemExample" resultType="java.lang.Integer" >
  192.     select count(*) from tb_item
  193.     <if test="_parameter != null" >
  194.       <include refid="Example_Where_Clause" />
  195.     </if>
  196.   </select>
  197.   <update id="updateByExampleSelective" parameterType="map" >
  198.     update tb_item
  199.     <set >
  200.       <if test="record.id != null" >
  201.         id = #{record.id,jdbcType=BIGINT},
  202.       </if>
  203.       <if test="record.title != null" >
  204.         title = #{record.title,jdbcType=VARCHAR},
  205.       </if>
  206.       <if test="record.sellPoint != null" >
  207.         sell_point = #{record.sellPoint,jdbcType=VARCHAR},
  208.       </if>
  209.       <if test="record.price != null" >
  210.         price = #{record.price,jdbcType=BIGINT},
  211.       </if>
  212.       <if test="record.num != null" >
  213.         num = #{record.num,jdbcType=INTEGER},
  214.       </if>
  215.       <if test="record.barcode != null" >
  216.         barcode = #{record.barcode,jdbcType=VARCHAR},
  217.       </if>
  218.       <if test="record.image != null" >
  219.         image = #{record.image,jdbcType=VARCHAR},
  220.       </if>
  221.       <if test="record.cid != null" >
  222.         cid = #{record.cid,jdbcType=BIGINT},
  223.       </if>
  224.       <if test="record.status != null" >
  225.         status = #{record.status,jdbcType=TINYINT},
  226.       </if>
  227.       <if test="record.created != null" >
  228.         created = #{record.created,jdbcType=TIMESTAMP},
  229.       </if>
  230.       <if test="record.updated != null" >
  231.         updated = #{record.updated,jdbcType=TIMESTAMP},
  232.       </if>
  233.     </set>
  234.     <if test="_parameter != null" >
  235.       <include refid="Update_By_Example_Where_Clause" />
  236.     </if>
  237.   </update>
  238.   <update id="updateByExample" parameterType="map" >
  239.     update tb_item
  240.     set id = #{record.id,jdbcType=BIGINT},
  241.       title = #{record.title,jdbcType=VARCHAR},
  242.       sell_point = #{record.sellPoint,jdbcType=VARCHAR},
  243.       price = #{record.price,jdbcType=BIGINT},
  244.       num = #{record.num,jdbcType=INTEGER},
  245.       barcode = #{record.barcode,jdbcType=VARCHAR},
  246.       image = #{record.image,jdbcType=VARCHAR},
  247.       cid = #{record.cid,jdbcType=BIGINT},
  248.       status = #{record.status,jdbcType=TINYINT},
  249.       created = #{record.created,jdbcType=TIMESTAMP},
  250.       updated = #{record.updated,jdbcType=TIMESTAMP}
  251.     <if test="_parameter != null" >
  252.       <include refid="Update_By_Example_Where_Clause" />
  253.     </if>
  254.   </update>
  255.   <update id="updateByPrimaryKeySelective" parameterType="cn.e3mall.pojo.TbItem" >
  256.     update tb_item
  257.     <set >
  258.       <if test="title != null" >
  259.         title = #{title,jdbcType=VARCHAR},
  260.       </if>
  261.       <if test="sellPoint != null" >
  262.         sell_point = #{sellPoint,jdbcType=VARCHAR},
  263.       </if>
  264.       <if test="price != null" >
  265.         price = #{price,jdbcType=BIGINT},
  266.       </if>
  267.       <if test="num != null" >
  268.         num = #{num,jdbcType=INTEGER},
  269.       </if>
  270.       <if test="barcode != null" >
  271.         barcode = #{barcode,jdbcType=VARCHAR},
  272.       </if>
  273.       <if test="image != null" >
  274.         image = #{image,jdbcType=VARCHAR},
  275.       </if>
  276.       <if test="cid != null" >
  277.         cid = #{cid,jdbcType=BIGINT},
  278.       </if>
  279.       <if test="status != null" >
  280.         status = #{status,jdbcType=TINYINT},
  281.       </if>
  282.       <if test="created != null" >
  283.         created = #{created,jdbcType=TIMESTAMP},
  284.       </if>
  285.       <if test="updated != null" >
  286.         updated = #{updated,jdbcType=TIMESTAMP},
  287.       </if>
  288.     </set>
  289.     where id = #{id,jdbcType=BIGINT}
  290.   </update>
  291.   <update id="updateByPrimaryKey" parameterType="cn.e3mall.pojo.TbItem" >
  292.     update tb_item
  293.     set title = #{title,jdbcType=VARCHAR},
  294.       sell_point = #{sellPoint,jdbcType=VARCHAR},
  295.       price = #{price,jdbcType=BIGINT},
  296.       num = #{num,jdbcType=INTEGER},
  297.       barcode = #{barcode,jdbcType=VARCHAR},
  298.       image = #{image,jdbcType=VARCHAR},
  299.       cid = #{cid,jdbcType=BIGINT},
  300.       status = #{status,jdbcType=TINYINT},
  301.       created = #{created,jdbcType=TIMESTAMP},
  302.       updated = #{updated,jdbcType=TIMESTAMP}
  303.     where id = #{id,jdbcType=BIGINT}
  304.   </update>
  305. </mapper>

　　

ItemService.class  接口

  1. package cn.e3mall.service;
  2.  
  3. import cn.e3mall.pojo.TbItem;
  4.  
  5. /**
  6.  * 商品管理Service
  7.  */
  8. public interface ItemService {
  9.     /**
  10.      * 根据商品id查询商品信息
  11.      *
  12.      * @param id
  13.      * @return
  14.      */
  15.     public TbItem getItemByid(long id);
  16. }

　　

ItemServiceImpl.class 实现类

  1. package cn.e3mall.service.impl;
  2. import cn.e3mall.service.ItemService;
  3. import cn.e3mall.mapper.TbItemMapper;
  4. import cn.e3mall.pojo.TbItem;
  5. import org.springframework.beans.factory.annotation.Autowired;
  6. import org.springframework.stereotype.Service;
  7.  
  8. /**
  9.  * 商品管理Service
  10.  */
  11. @Service
  12. class ItemServiceImpl implements ItemService {
  13.  
  14.     @Autowired
  15.     private TbItemMapper itemMapper;
  16.  
  17.     /**
  18.      * 根据id查询商品
  19.      * @param id
  20.      * @return
  21.      */
  22.     @Override
  23.     public TbItem getItemByid(long id) {
  24.         TbItem item = itemMapper.selectByPrimaryKey(id);
  25.         return item;
  26.     }
  27. }

ItemController.Class

  1. package cn.e3mall.controller;
  2.  
  3. import cn.e3mall.service.ItemService;
  4. import cn.e3mall.pojo.TbItem;
  5. import org.springframework.beans.factory.annotation.Autowired;
  6. import org.springframework.stereotype.Controller;
  7. import org.springframework.web.bind.annotation.PathVariable;
  8. import org.springframework.web.bind.annotation.RequestMapping;
  9. import org.springframework.web.bind.annotation.ResponseBody;
  10.  
  11. /**
  12.  * 商品管理Controller
  13.  */
  14. @Controller
  15. public class ItemController {
  16.     @Autowired
  17.     private ItemService itemService;
  18.  
  19.     @RequestMapping("/item/{itemId}")
  20.     @ResponseBody
  21.     public TbItem getItemById(@PathVariable Long itemId){
  22.         System.out.println(itemId);
  23.         TbItem item=itemService.getItemByid(itemId);
  24.         System.out.println(item.toString());
  25.         return item;
  26.     }
  27. }

五、intellij maven工程运行

运行项目后，在控制台可以看到如下图所示。

去浏览器输入地址后可以看到项目运行成功。

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