先展示文件结构图对工程结构有大致了解：

主要为 ssm-parent （用来管理jar包版本）是每个工程的父工程，ssm-common（用来处理底层数据），ssm-manager（对数据库信息进行操作）

Pojo（bean）->mapper（Dao）->Service->Controller

一、创建工程

1、新建maven project-> ssm-parent 作为所有工程的父工程用来集中定义jar 及其版本信息。

2、建立maven project ->ssm-common 用来编写底层数据处理类

3、建立maven project ->ssm-manager 对数据库进行操作

4、在ssm-manager 中创建子工程模块建立ssm-manager-pojo

5、重复上述操作建立 ssm-manager-mapper、ssm-managerservice

6、在ssm-manager中创建子工程 ssm-manager-controller ，Packaging 选择 war（表示web工程）

　　此时工程会报错：需要到工程的　src/main/webapp 下创建 /WEB-INF/web.xml

二、导入工程及jar包依赖

1、parent -> pom.xml

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>ssm</groupId>
     <artifactId>ssm-parent</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <packaging>pom</packaging>
     <!-- 集中定义依赖版本号 -->
     <properties>
         <junit.version>4.12</junit.version>
         <spring.version>4.1.3.RELEASE</spring.version>
         <mybatis.version>3.2.8</mybatis.version>
         <mybatis.spring.version>1.2.2</mybatis.spring.version>
         <mybatis.paginator.version>1.2.15</mybatis.paginator.version>
         <mysql.version>5.1.32</mysql.version>
         <slf4j.version>1.6.4</slf4j.version>
         <jackson.version>2.4.2</jackson.version>
         <druid.version>1.0.9</druid.version>
         <httpclient.version>4.3.5</httpclient.version>
         <jstl.version>1.2</jstl.version>
         <servlet-api.version>2.5</servlet-api.version>
         <jsp-api.version>2.0</jsp-api.version>
         <joda-time.version>2.5</joda-time.version>
         <commons-lang3.version>3.3.2</commons-lang3.version>
         <commons-io.version>1.3.2</commons-io.version>
         <commons-net.version>3.3</commons-net.version>
         <pagehelper.version>3.4.2-fix</pagehelper.version>
         <jsqlparser.version>0.9.1</jsqlparser.version>
         <commons-fileupload.version>1.3.1</commons-fileupload.version>
         <jedis.version>2.7.2</jedis.version>
         <solrj.version>4.10.3</solrj.version>
 
     </properties>
     <dependencyManagement>
         <dependencies>
             <!-- 时间操作组件 -->
             <dependency>
                 <groupId>joda-time</groupId>
                 <artifactId>joda-time</artifactId>
                 <version>${joda-time.version}</version>
             </dependency>
             <!-- Apache工具组件 -->
             <dependency>
                 <groupId>org.apache.commons</groupId>
                 <artifactId>commons-lang3</artifactId>
                 <version>${commons-lang3.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.apache.commons</groupId>
                 <artifactId>commons-io</artifactId>
                 <version>${commons-io.version}</version>
             </dependency>
             <dependency>
                 <groupId>commons-net</groupId>
                 <artifactId>commons-net</artifactId>
                 <version>${commons-net.version}</version>
             </dependency>
             <!-- Jackson Json处理工具包 -->
             <dependency>
                 <groupId>com.fasterxml.jackson.core</groupId>
                 <artifactId>jackson-databind</artifactId>
                 <version>${jackson.version}</version>
             </dependency>
             <!-- httpclient -->
             <dependency>
                 <groupId>org.apache.httpcomponents</groupId>
                 <artifactId>httpclient</artifactId>
                 <version>${httpclient.version}</version>
             </dependency>
             <!-- 单元测试 -->
             <dependency>
                 <groupId>junit</groupId>
                 <artifactId>junit</artifactId>
                 <version>${junit.version}</version>
                 <scope>test</scope>
             </dependency>
             <!-- 日志处理 -->
             <dependency>
                 <groupId>org.slf4j</groupId>
                 <artifactId>slf4j-log4j12</artifactId>
                 <version>${slf4j.version}</version>
             </dependency>
             <!-- Mybatis -->
             <dependency>
                 <groupId>org.mybatis</groupId>
                 <artifactId>mybatis</artifactId>
                 <version>${mybatis.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.mybatis</groupId>
                 <artifactId>mybatis-spring</artifactId>
                 <version>${mybatis.spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>com.github.miemiedev</groupId>
                 <artifactId>mybatis-paginator</artifactId>
                 <version>${mybatis.paginator.version}</version>
             </dependency>
             <dependency>
                 <groupId>com.github.pagehelper</groupId>
                 <artifactId>pagehelper</artifactId>
                 <version>${pagehelper.version}</version>
             </dependency>
             <!-- MySql -->
             <dependency>
                 <groupId>mysql</groupId>
                 <artifactId>mysql-connector-java</artifactId>
                 <version>${mysql.version}</version>
             </dependency>
             <!-- 连接池 -->
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>druid</artifactId>
                 <version>${druid.version}</version>
             </dependency>
             <!-- Spring -->
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-context</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-beans</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-webmvc</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-jdbc</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-aspects</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <!-- JSP相关 -->
             <dependency>
                 <groupId>jstl</groupId>
                 <artifactId>jstl</artifactId>
                 <version>${jstl.version}</version>
             </dependency>
             <dependency>
                 <groupId>javax.servlet</groupId>
                 <artifactId>servlet-api</artifactId>
                 <version>${servlet-api.version}</version>
                 <scope>provided</scope>
             </dependency>
             <dependency>
                 <groupId>javax.servlet</groupId>
                 <artifactId>jsp-api</artifactId>
                 <version>${jsp-api.version}</version>
                 <scope>provided</scope>
             </dependency>
             <!-- 文件上传组件 -->
             <dependency>
                 <groupId>commons-fileupload</groupId>
                 <artifactId>commons-fileupload</artifactId>
                 <version>${commons-fileupload.version}</version>
             </dependency>
             <!-- Redis客户端 -->
             <dependency>
                 <groupId>redis.clients</groupId>
                 <artifactId>jedis</artifactId>
                 <version>${jedis.version}</version>
             </dependency>
             <!-- solr客户端 -->
             <dependency>
                 <groupId>org.apache.solr</groupId>
                 <artifactId>solr-solrj</artifactId>
                 <version>${solrj.version}</version>
             </dependency>
         </dependencies>
     </dependencyManagement>
 
     <build>
         <finalName>${project.artifactId}</finalName>
         <plugins>
             <!-- 资源文件拷贝插件 -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-resources-plugin</artifactId>
                 <version>2.7</version>
                 <configuration>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>
             <!-- java编译插件 -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.2</version>
                 <configuration>
                     <source>1.7</source>
                     <target>1.7</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>
         </plugins>
         <pluginManagement>
             <plugins>
                 <!-- 配置Tomcat插件 -->
                 <plugin>
                     <groupId>org.apache.tomcat.maven</groupId>
                     <artifactId>tomcat7-maven-plugin</artifactId>
                     <version>2.2</version>
                 </plugin>
             </plugins>
         </pluginManagement>
     </build>
 
 </project>

2、common -> pom.xml 导入jar 依赖

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <parent>
     <groupId>ssm</groupId>
     <artifactId>ssm-parent</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </parent>
   <groupId>ssm</groupId>
   <artifactId>ssm-common</artifactId>
   <version>0.0.1-SNAPSHOT</version>
 <dependencies>
               <!-- 时间操作组件 -->
             <dependency>
                 <groupId>joda-time</groupId>
                 <artifactId>joda-time</artifactId>
             </dependency>
             <!-- Apache工具组件 -->
             <dependency>
                 <groupId>org.apache.commons</groupId>
                 <artifactId>commons-lang3</artifactId>
             </dependency>
             <dependency>
                 <groupId>org.apache.commons</groupId>
                 <artifactId>commons-io</artifactId>
             </dependency>
             <dependency>
                 <groupId>commons-net</groupId>
                 <artifactId>commons-net</artifactId>
             </dependency>
             <!-- Jackson Json处理工具包 -->
             <dependency>
                 <groupId>com.fasterxml.jackson.core</groupId>
                 <artifactId>jackson-databind</artifactId>
             </dependency>
             <!-- httpclient -->
             <dependency>
                 <groupId>org.apache.httpcomponents</groupId>
                 <artifactId>httpclient</artifactId>
             </dependency>
             <!-- 单元测试 -->
             <dependency>
                 <groupId>junit</groupId>
                 <artifactId>junit</artifactId>
                 <scope>test</scope>
             </dependency>
 
             <!-- 日志处理 -->
             <dependency>
                 <groupId>org.slf4j</groupId>
                 <artifactId>slf4j-log4j12</artifactId>
             </dependency>
   </dependencies>
 </project>

3、ssm-manager -> pom.xml （1）导入工程依赖（2）添加tomcat插件

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <parent>
     <groupId>ssm</groupId>
     <artifactId>ssm-parent</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </parent>
   <groupId>ssm</groupId>
   <artifactId>ssm-manager</artifactId>
   <version>0.0.1-SNAPSHOT</version>
   <packaging>pom</packaging>
   <dependencies>
   <!-- 依赖于common工程 -->
       <dependency>
             <groupId>ssm</groupId>
           <artifactId>ssm-common</artifactId>
           <version>0.0.1-SNAPSHOT</version>
       </dependency>
   </dependencies>
   <modules>
       <module>ssm-manager-pojo</module>
       <module>ssm-manager-mapper</module>
       <module>ssm-manager-service</module>
       <module>ssm-manager-controller</module>
   </modules>
    <build>
       <plugins>
       <!-- Tomcat  插件 -->
           <plugin>
             <groupId>org.apache.tomcat.maven</groupId>
             <artifactId>tomcat7-maven-plugin</artifactId>
               <configuration>
                   <port>8080</port>
                   <path>/</path>
               </configuration>
           </plugin>
       </plugins>
   </build>
 </project>

4、ssm-manger-pojo -> pom.xml (1)导入jar包依赖（2）导入工程依赖

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>ssm</groupId>
    <artifactId>ssm-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
               <groupId>ssm</groupId>
            　　<artifactId>ssm-manager-pojo</artifactId>
            　　<version>0.0.1-SNAPSHOT</version>
  <dependencies>
      <dependency>
             　　　<groupId>ssm</groupId>
            　　<artifactId>ssm-common</artifactId>
           　　 <version>0.0.1-SNAPSHOT</version>
      </dependency>
  </dependencies>
</project>

5、ssm-manger-mapper-> pom.xml (1)导入jar包依赖（2）导入工程依赖　

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>ssm</groupId>
         <artifactId>ssm-manager</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
     <groupId>ssm</groupId>
     <artifactId>ssm-manager-mapper</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <dependencies>
         <dependency>
             <groupId>ssm</groupId>
             <artifactId>ssm-manager-pojo</artifactId>
             <version>0.0.1-SNAPSHOT</version>
         </dependency>
 
         <!-- Mybatis -->
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
         </dependency>
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis-spring</artifactId>
         </dependency>
         <dependency>
             <groupId>com.github.miemiedev</groupId>
             <artifactId>mybatis-paginator</artifactId>
         </dependency>
         <dependency>
             <groupId>com.github.pagehelper</groupId>
             <artifactId>pagehelper</artifactId>
         </dependency>
         <!-- MySql -->
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
         </dependency>
         <!-- 连接池 -->
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
         </dependency>
     </dependencies>
     <build>
         <!-- 配置将mybatis的mapper.xml不会复制进web工程，会报错绑定异常找不到mapper.xml -->
         <resources>
             <resource>
                 <directory>src/main/java</directory>
                 <includes>
                     <include>**/*.properties</include>
                     <include>**/*.xml</include>
                 </includes>
                 <filtering>false</filtering>
             </resource>
         </resources>
     </build>
 </project>

5、ssm-manger-service-> pom.xml (1)导入jar包依赖（2）导入工程依赖　

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <parent>
     <groupId>ssm</groupId>
     <artifactId>ssm-manager</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </parent>
   <groupId>ssm</groupId>
   <artifactId>ssm-manager-service</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <dependencies>
        <dependency>
                  <groupId>ssm</groupId>
               <artifactId>ssm-manager-mapper</artifactId>
                <version>0.0.1-SNAPSHOT</version>
        </dependency>
              <!-- Spring -->
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-context</artifactId>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-beans</artifactId>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-webmvc</artifactId>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-jdbc</artifactId>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-aspects</artifactId>
             </dependency>
   </dependencies>
 </project>

6、ssm-manger-controller-> pom.xml (1)导入jar包依赖（2）导入工程依赖　

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <parent>
     <groupId>ssm</groupId>
     <artifactId>ssm-manager</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </parent>
      <groupId>ssm</groupId>
     <artifactId>ssm-manager-controller</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     <packaging>war</packaging>
 <dependencies>
       <dependency>
               <groupId>ssm</groupId>
               <artifactId>ssm-manager-service</artifactId>
                <version>0.0.1-SNAPSHOT</version>
       </dependency>
                   <!-- JSP相关 -->
             <dependency>
                 <groupId>jstl</groupId>
                 <artifactId>jstl</artifactId>
             </dependency>
             <dependency>
                 <groupId>javax.servlet</groupId>
                 <artifactId>servlet-api</artifactId>
                 <scope>provided</scope>
             </dependency>
             <dependency>
                 <groupId>javax.servlet</groupId>
                 <artifactId>jsp-api</artifactId>
                 <scope>provided</scope>
             </dependency>
             <!-- 文件上传组件 -->
             <dependency>
                 <groupId>commons-fileupload</groupId>
                 <artifactId>commons-fileupload</artifactId>
             </dependency>
             <!-- junit依赖 -->
             <dependency>
                 <groupId>org.hamcrest</groupId>
                 <artifactId>hamcrest-core</artifactId>
                 <version>1.3</version>
             </dependency>
   </dependencies>
 </project>

三、SSM整合（全部在controller层）

1、编写propertiees 文件

db.properties

1 jdbc.url = jdbc:mysql\://localhost\:3306/test?characterEncoding\=utf8
2 jdbc.username = root
3 jdbc.password = 000000
4 jdbc.driver =com.mysql.jdbc.Driver

log4j.properties

1 # Global logging configuration
2 log4j.rootLogger=ERROR, stdout
3 # MyBatis logging configuration...
4 log4j.logger.org.mybatis.example.BlogMapper=TRACE
5 # Console output...
6 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
7 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
8 log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

2、编写mybatis-conf.xml

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

3、编写springMVC.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:mvc="http://www.springframework.org/schema/mvc"
     xmlns:aop="http://www.springframework.org/schema/aop"
     xmlns:p="http://www.springframework.org/schema/p"
     xmlns:util="http://www.springframework.org/schema/util"
     xmlns:context="http://www.springframework.org/schema/context"
     xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
         http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
     <!-- 扫描包 -->
     <context:component-scan base-package="com.controller"></context:component-scan>
     <!--  配置-->
     <mvc:annotation-driven></mvc:annotation-driven>
     <!-- 静态资源映射 -->
     <mvc:resources location="/WEB-INF/css" mapping="/css/**"/>
     <mvc:resources location="/WEB-INF/js" mapping="/js/**"/>
 <!--<mvc:resources location="/WEB-INF/" mapping="/css/**"/>
  -->    <!-- <mvc:default-servlet-handler/> -->
     <!-- 视图解析器 -->
     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/jsp"></property>
         <property name="suffix" value=".jsp"></property>
     </bean>
 </beans>

4、编写spring配置文件

　　applicationContext-mapper.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:aop="http://www.springframework.org/schema/aop"
     xmlns:context="http://www.springframework.org/schema/context"
     xmlns:jdbc="http://www.springframework.org/schema/jdbc"
     xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
     xmlns:util="http://www.springframework.org/schema/util"
     xmlns:tx="http://www.springframework.org/schema/tx"
     xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
         http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
         http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
 
 <!-- 数据库连接池 -->
     <!-- 加载配置文件 -->
     <context:property-placeholder location="classpath:/resource/db.properties"/>
     <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
         <property name="url" value="${jdbc.url}"></property>
         <property name="username" value="${jdbc.username}"></property>
         <property name="password" value="${jdbc.password}"></property>
         <property name="driverClassName" value="${jdbc.driver}"></property>
         <property name="maxActive" value="10"></property>
         <property name="minIdle" value="5"></property>
     </bean>
     <!-- 让spring管理sqlsessionfactory 使用 mybatis 和 spring 整合包 -->
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <!-- 数据库连接池 -->
         <property name="dataSource" ref="dataSource"></property>
         <!-- 加载mybatis 的全局属性 -->
         <property name="configLocation" value="classpath:mybatis/mybatis-conf.xml"></property>
     </bean>
     <!-- 配置扫描包，加载mapper代理对象   mybatis与spring整合包在spring配置文件中扫描mapper接口 -->
     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <property name="basePackage" value="com.mapper"></property>
     </bean>
 </beans>

applicationContext-service.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:context="http://www.springframework.org/schema/context"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
     <!-- 扫描包  -->
     <context:component-scan base-package="com.service"></context:component-scan>
 </beans>

applicationContext-trans.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:aop="http://www.springframework.org/schema/aop"
     xmlns:tx="http://www.springframework.org/schema/tx"
     xmlns:util="http://www.springframework.org/schema/util"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
         http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.1.xsd">
     <!-- 配置事务管理器 -->
     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <!-- 数据源 -->
         <property name="dataSource" ref="dataSource"></property>
     </bean>
     <tx:advice id="txAdvice" transaction-manager="transactionManager">
         <tx:attributes>
             <!-- 传播行为 -->
             <tx:method name="save*" propagation="REQUIRED"/>
             <tx:method name="insert*" propagation="REQUIRED"/>
             <tx:method name="add*" propagation="REQUIRED"/>
             <tx:method name="create*" propagation="REQUIRED"/>
             <tx:method name="delete*" propagation="REQUIRED"/>
             <tx:method name="update*" propagation="REQUIRED"/>
             <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
             <tx:method name="select*" propagation="SUPPORTS" read-only="true"/>
             <tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
         </tx:attributes>
     </tx:advice>
     <!-- 切面 -->
     <aop:config>
         <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.service.*.*(..))"/>
     </aop:config>
 </beans>

web.xml中注册spring 、springMVC (web.xml的位置：controller>src>main>webapp>WEB-INF>web.xml 目录文件不自动创建，需要手动创建)

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
     id="WebApp_ID" version="2.5">
     <display-name>ssm-web</display-name>
     <welcome-file-list>
         <welcome-file>index.jsp</welcome-file>
     </welcome-file-list>
     <!-- 加载spring容器 -->
     <context-param>
         <param-name>contextConfigLocation</param-name>
         <param-value>classpath:spring/applicationContext*.xml</param-value>
     </context-param>
     <listener>
         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
     </listener>
 
     <!-- 解决post乱码 -->
     <filter>
         <filter-name>CharacterEncodingFilter</filter-name>
         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
         <init-param>
             <param-name>encoding</param-name>
             <param-value>utf-8</param-value>
         </init-param>
         <!-- <init-param>
             <param-name>forceEncoding</param-name>
             <param-value>true</param-value>
         </init-param> -->
     </filter>
     <filter-mapping>
         <filter-name>CharacterEncodingFilter</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>
 
     <!-- springmvc的前端控制器 -->
     <servlet>
         <servlet-name>DispatcherServlet</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
         <!-- contextConfigLocation不是必须的， 如果不配置contextConfigLocation， springmvc的配置文件默认在：WEB-INF/servlet的name+"-servlet.xml" -->
         <init-param>
             <param-name>contextConfigLocation</param-name>
             <param-value>classpath:spring/springMVC.xml</param-value>
         </init-param>
         <load-on-startup>1</load-on-startup>
     </servlet>
     <servlet-mapping>
         <servlet-name>DispatcherServlet</servlet-name>
         <url-pattern>/</url-pattern>
     </servlet-mapping>
 </web-app>

四、创建查询

1、ssm-common 编写 SsmResulat.java 用来处理查询结果转json发送　

 package com.common;
 import java.util.List;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 public class SsmResult {
     // 定义jackson对象
     private static final ObjectMapper MAPPER = new ObjectMapper();
     // 响应业务状态
     private Integer status;
     // 响应消息
     private String msg;
     // 响应中的数据
     private Object data;
     public static SsmResult build(Integer status, String msg, Object data) {
         return new SsmResult(status, msg, data);
     }
 
     public static SsmResult ok(Object data) {
         return new SsmResult(data);
     }
 
     public static SsmResult ok() {
         return new SsmResult(null);
     }
     public SsmResult() {
     }
     public static SsmResult build(Integer status, String msg) {
         return new SsmResult(status, msg, null);
     }
     public SsmResult(Integer status, String msg, Object data) {
         this.status = status;
         this.msg = msg;
         this.data = data;
     }
 
     public SsmResult(Object data) {
         this.status = 200;
         this.msg = "OK";
         this.data = data;
     }
 
 //    public Boolean isOK() {
 //        return this.status == 200;
 //    }
 
     public Integer getStatus() {
         return status;
     }
     public void setStatus(Integer status) {
         this.status = status;
     }
     public String getMsg() {
         return msg;
     }
     public void setMsg(String msg) {
         this.msg = msg;
     }
     public Object getData() {
         return data;
     }
     public void setData(Object data) {
         this.data = data;
     }
     /**
      * 将json结果集转化为SsmResult对象
      *
      * @param jsonData json数据
      * @param clazz SsmResult中的object类型
      * @return
      */
     public static SsmResult formatToPojo(String jsonData, Class<?> clazz) {
         try {
             if (clazz == null) {
                 return MAPPER.readValue(jsonData, SsmResult.class);
             }
             JsonNode jsonNode = MAPPER.readTree(jsonData);
             JsonNode data = jsonNode.get("data");
             Object obj = null;
             if (clazz != null) {
                 if (data.isObject()) {
                     obj = MAPPER.readValue(data.traverse(), clazz);
                 } else if (data.isTextual()) {
                     obj = MAPPER.readValue(data.asText(), clazz);
                 }
             }
             return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj);
         } catch (Exception e) {
             return null;
         }
     }
 
     /**
      * 没有object对象的转化
      *
      * @param json
      * @return
      */
     public static SsmResult format(String json) {
         try {
             return MAPPER.readValue(json, SsmResult.class);
         } catch (Exception e) {
             e.printStackTrace();
         }
         return null;
     }
 
     /**
      * Object是集合转化
      *
      * @param jsonData json数据
      * @param clazz 集合中的类型
      * @return
      */
     public static SsmResult formatToList(String jsonData, Class<?> clazz) {
         try {
             JsonNode jsonNode = MAPPER.readTree(jsonData);
             JsonNode data = jsonNode.get("data");
             Object obj = null;
             if (data.isArray() && data.size() > 0) {
                 obj = MAPPER.readValue(data.traverse(),
                         MAPPER.getTypeFactory().constructCollectionType(List.class, clazz));
             }
             return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj);
         } catch (Exception e) {
             return null;
         }
     }
 }

2、用逆向生成mybatis的代码：

mbg.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE generatorConfiguration
   PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
   "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
 <generatorConfiguration>
     <!--
         targetRuntime="MyBatis3Simple":生成简单版的CRUD
         MyBatis3:豪华版
      -->
   <context id="DB2Tables" targetRuntime="MyBatis3">
               <commentGenerator>
             <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
             <property name="suppressAllComments" value="true" />
         </commentGenerator>
       <!-- jdbcConnection：指定如何连接到目标数据库 -->
     <jdbcConnection driverClass="com.mysql.jdbc.Driver"
         connectionURL="jdbc:mysql://localhost:3306/test?allowMultiQueries=true"
         userId="root"
         password="000000">
     </jdbcConnection>
     <!--  -->
     <javaTypeResolver >
       <property name="forceBigDecimals" value="false" />
     </javaTypeResolver>
 
     <!-- javaModelGenerator：指定javaBean的生成策略
     targetPackage="test.model"：目标包名
     targetProject="\MBGTestProject\src"：目标工程
     -->
     <javaModelGenerator targetPackage="com.pojo"
             targetProject=".\src">
       <property name="enableSubPackages" value="false" />
       <property name="trimStrings" value="true" />
     </javaModelGenerator>
     <!-- sqlMapGenerator：sql映射生成策略： -->
     <sqlMapGenerator targetPackage="com.mapper"
         targetProject=".\src">
       <property name="enableSubPackages" value="false" />
     </sqlMapGenerator>
     <!-- javaClientGenerator:指定mapper接口所在的位置 -->
     <javaClientGenerator type="XMLMAPPER" targetPackage="com.mapper"
         targetProject=".\src">
       <property name="enableSubPackages" value="false" />
     </javaClientGenerator>
     <!-- 指定要逆向分析哪些表：根据表要创建javaBean --><!--  tableName取 %  创建 数据库下所有-->
         <table schema="" tableName="account"></table>
   </context>
 </generatorConfiguration>

TestMbg.java

     @Test
     public void testMbg() throws Exception {
         List<String> warnings = new ArrayList<String>();
         boolean overwrite = true;
         File configFile = new File("mbg.xml");
         ConfigurationParser cp = new ConfigurationParser(warnings);
         Configuration config = cp.parseConfiguration(configFile);
         DefaultShellCallback callback = new DefaultShellCallback(overwrite);
         MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,
                 callback, warnings);
         myBatisGenerator.generate(null);
     }

生成目录结构如下：

3、将逆向生成的代码复制到 ssm-manager-pojo 、ssm-manager-mapper

4、创建service层java类，并做注解加载进spring容器

AccountService.java

 package com.service;
 
 import java.util.List;
 
 import com.pojo.Account;
 
 public interface AccountService {
 public Account getAccount (int id) ;
 public List<Account> getAccountAll () ;
 }

AccountServiceImpl.java

 package com.service;
 
 import java.util.List;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import com.mapper.AccountMapper;
 import com.pojo.Account;
 import com.pojo.AccountExample;
 import com.pojo.AccountExample.Criteria;
 @Service
 public class AccountServiceImpl implements AccountService{
 @Autowired
 private AccountMapper accountMapper;
     @Override
     public List<Account> getAccountAll() {
         AccountExample accountExample = new AccountExample();
         Criteria criteria = accountExample.createCriteria();
         criteria.andIdIsNotNull();
         List<Account> accountList = accountMapper.selectByExample(accountExample);
         for (Account account : accountList) {
             account.toString();
         }
         return accountList;
     }
     @Override
     public Account getAccount(int id) {
         return null;
     }
 
 }

5、编写controller层拦截请求

 package com.controller;
 
 import static org.hamcrest.CoreMatchers.nullValue;
 
 import java.util.List;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
 import com.alibaba.druid.support.json.JSONParser;
 import com.alibaba.druid.support.json.JSONUtils;
 import com.common.SsmResult;
 import com.pojo.Account;
 import com.service.AccountService;
 import com.service.AccountServiceImpl;
 @Controller
 public class AccountContraller {
 @Autowired
 private AccountService accountServiceImpl;
 @RequestMapping("getAccount")
 @ResponseBody
     public SsmResult getAccount() {
         List<Account> list = accountServiceImpl.getAccountAll();
         return  SsmResult.ok(list);
     }
 }

6、编写页面发送请求：

index.jsp

 <%@ page language="java" contentType="text/html; charset=UTF-8"
     pageEncoding="UTF-8"%>
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>hello</title>
 </head>
 <body>
 maven  ssm project<br>
 <a href="getAccount">Account </a>
 </body>
 </html>

五、运行工程

1、安装maven工程

2、运行工程 ssm-manager -> run as -> Mavenbuild　　(clean tomcat7:run)

3、　　访问页面： http://localhost:8080/

　　　　点击链接：

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