Spring+Struts2+Mybatis在Intellij下的整合

环境：jdk 1.8,      tomcat 8.0.38;

开发工具：Intellj;

具体步骤：

1. 创建一个maven下的web项目

2. 配置相应的jar文件，具体的配置方式为：

<dependencies>    <dependency>        <groupId>junit</groupId>        <artifactId>junit</artifactId>        <version>4.12</version>        <scope>test</scope>    </dependency>    <dependency>        <groupId>org.apache.struts</groupId>        <artifactId>struts2-core</artifactId>        <version>2.5.8</version>    </dependency>    <!-- jstl 标签类 -->    <dependency>        <groupId>javax.servlet</groupId>        <artifactId>jstl</artifactId>        <version>1.2</version>    </dependency>    <dependency>        <groupId>taglibs</groupId>        <artifactId>standard</artifactId>        <version>1.1.2</version>    </dependency>    <!-- 日志记录(在控制台输出MyBatis的SQL语句) -->    <dependency>        <groupId>log4j</groupId>        <artifactId>log4j</artifactId>        <version>1.2.17</version>    </dependency>    <!-- FastJSON -->    <dependency>        <groupId>com.alibaba</groupId>        <artifactId>fastjson</artifactId>        <version>1.2.21</version>    </dependency>    <!-- 数据库驱动 -->    <dependency>        <groupId>mysql</groupId>        <artifactId>mysql-connector-java</artifactId>        <version>5.1.38</version>    </dependency>    <dependency>        <groupId>org.mybatis.generator</groupId>        <artifactId>mybatis-generator-core</artifactId>        <version>1.3.5</version>    </dependency>    <!-- 数据库连接池 -->    <dependency>        <groupId>com.alibaba</groupId>        <artifactId>druid</artifactId>        <version>1.0.26</version>    </dependency>    <!-- MyBatis 核心Jar包 -->    <dependency>        <groupId>org.mybatis</groupId>        <artifactId>mybatis</artifactId>        <version>3.4.1</version>    </dependency>    <!-- Spring MyBatis 整合 -->    <dependency>        <groupId>org.mybatis</groupId>        <artifactId>mybatis-spring</artifactId>        <version>1.3.0</version>    </dependency>    <!-- Spring MVC -->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-webmvc</artifactId>        <version>4.3.5.RELEASE</version>    </dependency>    <!-- spring核心包 -->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-core</artifactId>        <version>4.3.5.RELEASE</version>    </dependency>    <!-- Spring 上下文 -->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-context</artifactId>        <version>4.3.5.RELEASE</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-tx</artifactId>        <version>4.3.5.RELEASE</version>    </dependency>    <!-- Spring AOP -->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-aop</artifactId>        <version>4.3.5.RELEASE</version>    </dependency>    <!-- 面向切面编程 -->    <dependency>        <groupId>org.aspectj</groupId>        <artifactId>aspectjweaver</artifactId>        <version>1.8.9</version>    </dependency>    <dependency>        <groupId>org.aspectj</groupId>        <artifactId>aspectjrt</artifactId>        <version>1.8.9</version>    </dependency>    <!-- Spring JDBC-->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-jdbc</artifactId>        <version>4.3.5.RELEASE</version>    </dependency>    <!-- Spring Web-->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-web</artifactId>        <version>4.3.5.RELEASE</version>    </dependency></dependencies>
<build>    <finalName>SpringStrutsMyBatis</finalName>    <!-- 指定Mapper XML文件在mybatis-config.xml中的配置有效-->    <resources>        <resource>            <directory>src/main/java</directory>            <includes>                <include>**/*.xml</include>            </includes>        </resource>    </resources></build>

3.  创建一个控制层的实体类：LoginAction.java, 并新建一个struts的配置文件struts.xml

具体的代码为：

package com.ssm.action;

import com.ssm.service.DeptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;

@Controller
public class LoginAction {

    @Autowired
    private DeptService deptService;
    private String uname;
    private String upass;
    public String login() {
        if("aa".equals(uname)&&"aa".equals(upass)){
           
            return "success";
        }else
            return "error";
    }
    public String getUname() {
        return uname;
    }
    public void setUname(String uname) {
        this.uname = uname;
    }
    public String getUpass() {
        return upass;
    }
    public void setUpass(String upass) {
        this.upass = upass;
    }
}

struts.xml:配置文件：

<struts>   <constant name="struts.i18n.encoding" value="UTF-8"></constant>    <!-- 指定需要struts2处理的请求后缀 -->   <constant name="struts.action.extension" value="do,action" />    <constant name="struts.enable.DynamicMethodInvocation" value="true" />    <package name="user" namespace="/user" extends="struts-default" strict-method-invocation="false">        <action name="login" class="com.ssm.action.LoginAction" method="login">            <result type="dispatcher" name="input">/login.jsp</result>            <result type="dispatcher" name="success">/success.jsp</result>            <result type="dispatcher" name="error">/error.jsp</result>        </action>    </package></struts>

4. 对web.xml文件做如下配置：

<filter>    <filter-name>struts2</filter-name>    <filter-class>        org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter    </filter-class></filter><filter-mapping>    <filter-name>struts2</filter-name>    <url-pattern>/*</url-pattern></filter-mapping><welcome-file-list>    <welcome-file>login.jsp</welcome-file></welcome-file-list>

5. 配置MyBatis， 新建一个xml文件，准备一个mybatis-generator-core-1.3.2.jar, 其位置关系如下：

具体作如下配置：

<?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>    <!-- 数据库驱动，用绝对路径 -->    <classPathEntry            location="C:/Users/Administrator/.m2/repository/mysql/mysql-connector-java/5.1.38/mysql-connector-java-5.1.38.jar"/>    <context id="DB2Tables" targetRuntime="MyBatis3">        <commentGenerator>            <property name="suppressDate" value="true"/>            <!-- 是否去除自动生成的注释 true：是 ： false:否 -->            <property name="suppressAllComments" value="true"/>        </commentGenerator>        <!--数据库链接URL，用户名、密码 -->        <jdbcConnection driverClass="com.mysql.jdbc.Driver"                        connectionURL="jdbc:mysql://localhost:3306/test?serverTimezone=UTC&amp;useSSL=true"                        userId="root"                        password="root">        </jdbcConnection>        <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer;             为 true时,把JDBC DECIMAL 和 NUMERIC 类型解析为java.math.BigDecimal -->        <javaTypeResolver>            <property name="forceBigDecimals" value="false"/>        </javaTypeResolver>        <!-- 生成Model的包名和位置 -->        <javaModelGenerator targetPackage="com.ssm.domain"                            targetProject="../../java">            <!-- enableSubPackages:是否让schema作为包的后缀 -->            <property name="enableSubPackages" value="true"/>            <!-- 从数据库返回的值被清理前后的空格 -->            <property name="trimStrings" value="true"/>        </javaModelGenerator>        <!-- 生成映射文件的包名和位置 -->        <sqlMapGenerator targetPackage="com.ssm.mapping"                         targetProject="../../java">            <!-- enableSubPackages:是否让schema作为包的后缀 -->            <property name="enableSubPackages" value="true"/>        </sqlMapGenerator>        <!-- 生成DAO(Mapper接口)的包名和位置 -->        <javaClientGenerator type="XMLMAPPER"                             targetPackage="com.ssm.dao" targetProject="../../java">            <!-- enableSubPackages:是否让schema作为包的后缀 -->            <property name="enableSubPackages" value="true"/>        </javaClientGenerator>        <!-- 要对哪些数据表进行生成操作，至少得有一个 -->
        <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名 -->
        <!-- 如果需要生成多个实体类，则需配置多次 -->      
       <table tableName="tb_Dept" domainObjectName="Dept"        
            enableCountByExample="false" enableUpdateByExample="false"   
            enableDeleteByExample="false" enableSelectByExample="false"       
            selectByExampleQueryId="false">
       </table>  
    </context>
 </generatorConfiguration>    
     然后，打开命令行窗口（win+R）：进入该配置文件所在的目录，然后，输入以下命令：
     java -jar mybatis-generator-core-1.3.2.jar -configfile ../myBatisAuto/generatorConfig.xml -overwrite（需要注意的是：不能更改位置结构），此时相应的包下，已经生成了相应的实体类及dao层的文件；

6. 新建一个xml文件mybatisMapper.xml用来加载相应的mapping包下的资源，具体作如下配置：
<?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><!--此时只有一个资源加载进去，如果需要加载多个资源，则需要一一的配置进去 -->   <mappers>        <mapper resource="com/ssm/mapping/DeptMapper.xml"/>    </mappers></configuration>

7. 创建一个Spring的配置文件applicationContext.xml文件，并做以下配置：

<!-- ======================================== 配置自动注入 ========================================= --><context:component-scan base-package="com.ssm"></context:component-scan><!-- ======================================== 配置数据源 ========================================= --><bean id="ds" class="com.alibaba.druid.pool.DruidDataSource">    <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>    <property name="url" value="jdbc:mysql:///test?useSSL=false"></property>    <property name="username" value="root"></property>    <property name="password" value="root"></property></bean><!-- ======================================== 配置MyBatis的SqlSessionFactory ========================================= --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">    <property name="dataSource" ref="ds"></property>    <property name="configLocation" value="classpath:mybatisMapper.xml"></property></bean><!-- ======================================== 配置MyBatis自动扫描SQL映射文件  ========================================= --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><!--使用mapper的扫描器自动扫描mapper接口在spring中进行注册 -->    <property name="basePackage" value="com.ssm.dao"></property>  <!-- basePackage指的是mapper所对应的接口的包名 -->    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property></bean><!-- ========================================配置事务管理========================================= --><bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">    <property name="dataSource" ref="ds" /></bean><tx:annotation-driven transaction-manager="txManager" /> <!-- 让事务支持注解 (使用声明式事务)-->

8. 在webapp下创建几个jsp的测试页面，其结构如下：

页面 login.jsp:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<form action="user/login.do" method="post">
    <input type="text" name="uname">
    <input type="text" name="upass"><br>
    <input type="submit">
</form>
</body>
</html>

success.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>登录成功</title>
</head>
<body>
登录成功
</body>
</html>

error.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>登录失败</title>
</head>
<body>
    登陆失败
</body>
</html>

9. 接下来用注解的方式，使相应层的类受Spring的管理，具体的注解方式，可以查阅其他资料获取，此处不再一一赘述；