maven项目ssh框架的整合

1.环境

eclipse版本：Eclipse Mars2 4.5
jdk版本：1.8
maven版本：apache-maven 3.3.9zhnegs
这是主要的开发工具版本，ssh的各种jar包版本就不列举了。

2.依赖传递与依赖冲突的解决

在整合开始前需要先介绍依赖传递与依赖冲突的问题；
依赖传递：

如图。可以看到在pom文件中只是导入了struts的核心包，在项目中去将核心包依赖的jar包全部都导入进来，这种依赖关系就会产生依赖传递。

依赖冲突：那如何会冲突呢，在整合ssh框架中，项目采用的包会有重复，那么就会产生问题，你希望导入的包并没有导入。

jar包

解决方案：
　　第一声明原则：先导入有高版本的jar包

 <dependencies>
   <!--   spring-beans-4.2. -->
       <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-context</artifactId>
           <version>4.2..RELEASE</version>
       </dependency>

 <!--   spring-beans-3.0. -->
       <dependency>
           <groupId>org.apache.struts</groupId>
           <artifactId>struts2-spring-plugin</artifactId>
           <version>2.3.</version>
       </dependency>

　　路径最短优先原则：即放弃依赖导入，直接单独导入该包

     <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-beans</artifactId>
           <version>4.2..RELEASE</version>
       </dependency>

　　排除原则：

       <dependency>
           <groupId>org.apache.struts</groupId>
           <artifactId>struts2-spring-plugin</artifactId>
           <version>2.3.</version>
           <exclusions>
             <exclusion>
               <groupId>org.springframework</groupId>
               <artifactId>spring-beans</artifactId>
             </exclusion>
           </exclusions>
       </dependency>

　　版本锁定原则：

 <properties>
         <spring.version>4.2..RELEASE</spring.version>
         <hibernate.version>5.0..Final</hibernate.version>
         <struts.version>2.3.</struts.version>
     </properties>

     <!-- 锁定版本，struts2-2.3.、spring4.2.4、hibernate5.0.7 -->
     <dependencyManagement>
         <dependencies>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-context</artifactId>
                 <version>${spring.version}</version>
             </dependency>
 </dependencies>
 </dependencyManagement>

3.pom文件整合

 <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>com.lsd.maven-web</groupId>
   <artifactId>maven-ssh</artifactId>
   <version>0.0.1-SNAPSHOT</version>
   <packaging>war</packaging>

     <!-- 属性 -->
     <properties>
         <spring.version>4.2.4.RELEASE</spring.version>
         <hibernate.version>5.0.7.Final</hibernate.version>
         <struts.version>2.3.24</struts.version>
     </properties>

     <!-- 锁定版本，struts2-2.3.24、spring4.2.4、hibernate5.0.7 -->
     <dependencyManagement>
         <dependencies>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-context</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-aspects</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-orm</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-test</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-web</artifactId>
                 <version>${spring.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.hibernate</groupId>
                 <artifactId>hibernate-core</artifactId>
                 <version>${hibernate.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.apache.struts</groupId>
                 <artifactId>struts2-core</artifactId>
                 <version>${struts.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.apache.struts</groupId>
                 <artifactId>struts2-spring-plugin</artifactId>
                 <version>${struts.version}</version>
             </dependency>
         </dependencies>
     </dependencyManagement>
     <!-- 依赖管理 -->
     <dependencies>
         <!-- spring -->
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context</artifactId>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-aspects</artifactId>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-orm</artifactId>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-web</artifactId>
         </dependency>
         <!-- hibernate -->
         <dependency>
             <groupId>org.hibernate</groupId>
             <artifactId>hibernate-core</artifactId>
         </dependency>

         <!-- 数据库驱动 -->
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
             <version>5.1.6</version>
             <scope>runtime</scope>
         </dependency>
         <!-- c3p0 -->

         <dependency>
             <groupId>c3p0</groupId>
             <artifactId>c3p0</artifactId>
             <version>0.9.1.2</version>
         </dependency>

         <!-- 导入 struts2 -->
         <dependency>
             <groupId>org.apache.struts</groupId>
             <artifactId>struts2-core</artifactId>
         </dependency>
         <dependency>
             <groupId>org.apache.struts</groupId>
             <artifactId>struts2-spring-plugin</artifactId>
         </dependency>

         <!-- servlet jsp -->
         <dependency>
             <groupId>javax.servlet</groupId>
             <artifactId>servlet-api</artifactId>
             <version>2.5</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>javax.servlet</groupId>
             <artifactId>jsp-api</artifactId>
             <version>2.0</version>
             <scope>provided</scope>
         </dependency>
         <!-- 日志 -->
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
             <version>1.7.2</version>
         </dependency>
         <!-- junit -->
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <version>4.9</version>
             <scope>test</scope>
         </dependency>
         <!-- jstl -->
         <dependency>
             <groupId>javax.servlet</groupId>
             <artifactId>jstl</artifactId>
             <version>1.2</version>
         </dependency>
     </dependencies>

     <build>
         <plugins>
             <!-- 设置编译版本为1.7 -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
                     <source>1.7</source>
                     <target>1.7</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>

             <!-- maven内置 的tomcat6插件 -->
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>tomcat-maven-plugin</artifactId>
                 <version>1.1</version>
                 <configuration>
                     <!-- 可以灵活配置工程路径 -->
                     <path>/ssh</path>
                     <!-- 可以灵活配置端口号 -->
                     <port>8080</port>
                 </configuration>
             </plugin>

         </plugins>
     </build>

 </project>

pom.xml

建议整合时先手动确定版本在进行导入

4.配置ssh项目
注意：有些配置文件需要在接口或者类同级目录下，那么需要在maven项目的resource文件夹下创建一个相同路径的目录

dao（这里将model层类一起包含，可以再细分）：domain模型类、dao接口、dao实现类、hibernate核心配置文件、对应的映射关系文件、将dao配置进spring管理

service：service接口、service实现类、spring管理注册service

action：action类、struts2配置文件、web.xml配置

都是ssh基本整合，这里不过多解释，主要介绍maven项目的导包。