MyBatis+SpringMVC+Spring整合

爱被打了一巴掌 2022-09-18 11:45 123阅读 0赞

最近项目要用到MyBatis+SpringMVC+Spring，所以刚刚试着整合个测试项目，在此记录一下。如有疏漏之处，还请诸位前辈提点一二。

如果对SpringMVC还不太了解的朋友，可以看我之前的日志，这里是连接——[http://blog.csdn.net/baimusensen/article/details/16120429][http_blog.csdn.net_baimusensen_article_details_16120429]

**1.导jar包**

注：因为能力有限，我这里的jar包有些jar包可能多余，不过都导进来肯定能跑起项目来

![SouthEast][]

**2.修改web.xml**

<?xml version="1.0" encoding="UTF-8"?>
    <web-app version="2.5" 
    	xmlns="http://java.sun.com/xml/ns/javaee" 
    	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    	<servlet>  
            <servlet-name>spring3mvc</servlet-name>  
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
              
            <init-param>  
                <param-name>contextConfigLocation</param-name>  
                  
                <param-value>classpath*:/applicationContext.xml</param-value>  
            </init-param>  
            <load-on-startup>1</load-on-startup>  
        </servlet>  
        <servlet-mapping>  
            <servlet-name>spring3mvc</servlet-name>  
              
            <url-pattern>*.action</url-pattern>  
        </servlet-mapping> 
      <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
      </welcome-file-list>
    </web-app>

**3.添加applicationContext.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:p="http://www.springframework.org/schema/p"  
        xmlns:context="http://www.springframework.org/schema/context"  
        xmlns:mvc="http://www.springframework.org/schema/mvc"  
        xsi:schemaLocation="http://www.springframework.org/schema/beans  
                            http://www.springframework.org/schema/beans/spring-beans-2.5.xsd  
                            http://www.springframework.org/schema/context  
                            http://www.springframework.org/schema/context/spring-context-2.5.xsd  
                            http://www.springframework.org/schema/mvc  
                            http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">  
                            
    	  
        <context:property-placeholder location="classpath:dataSource.properties" />
        
          
        <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"  
            destroy-method="close">  
            <property name="driverClassName" value="${driver}" />  
            <property name="url" value="${url}" />  
            <property name="username" value="${username}" />  
            <property name="password" value="${password}" />  
        </bean>
        
          
        <bean id="transactionManager"  
            class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
            <property name="dataSource" ref="dataSource" />  
        </bean>
        
          
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
        	<property name="configLocation" value="classpath:mybatis-config.xml"></property>
            <property name="dataSource" ref="dataSource" />  
        </bean>
                            
          
        <context:component-scan base-package="com"/>  
          
        <mvc:annotation-driven />  
          
        <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
              
            <property name="prefix" value="/jsp/" />  
            <property name="suffix" value=".jsp" />  
        </bean>  
        
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
            <property name="basePackage" value="com.mapper"/>  
        </bean>
        
        <bean id="lalaMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
        	<property name="mapperInterface" value="com.mapper.ILalaMapper"/>
        	<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
        </bean>
    </beans>

**4.添加mybatis-config.xml**

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE configuration
      PUBLIC "-//mybatis.org//DTDConfig 3.0//EN"
      "http://mybatis.org/dtd/mybatis-3-config.dtd">
    
    
    <configuration>
        <mappers>
        
           <mapper resource="testMapper.xml"/>
        </mappers>
    </configuration>

**5.添加配置文件——dataSource.properties**

driver=oracle.jdbc.driver.OracleDriver
    url=jdbc\:oracle\:thin\:@Kewpie-HP\:1521\:KEWPIE
    username=Kewpie
    password=qyj890721

**6.添加MyBatis映射文件——testMapper.xml**

这个xml的名字随便起，只要最后与mybatis-config.xml里的文件名对应上就可以了

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE mapper
      PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
      "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
    <mapper namespace="com.mapper.ILalaMapper">
    	<select id="selectAllLala" resultMap="LalaMapper">
    		select * from TEST13X11X19X1
    	</select>
    	
    	<resultMap type="com.model.Lala" id="LalaMapper" autoMapping="true">
    		<id property="id" column="t_id"/>
    		<result property="name" column="t_name"/>
    	</resultMap>
    </mapper>

**7.写JavaBean**

public class Lala implements Serializable {
    
    	private int id;
    	private String name;
    	
            //getter、setter省略
    }

**8.写接口——ILalaMapper**

注：这里这个ILalaMapper就相当于其他地方的UserDao之类的，我这个名字是随便起的

package com.mapper;
    
    import java.util.List;
    
    import com.model.Lala;
    
    public interface ILalaMapper {
    
    	List<Lala> selectAllLala();
    }

**9.写service接口及其实现类**

service接口

package com.service;
    
    import java.util.List;
    
    import com.model.Lala;
    
    public interface ITestService {
    
    	List<Lala> findAll();
    }

实现类

package com.service.impl;
    
    import java.util.List;
    
    import javax.annotation.Resource;
    
    import org.springframework.stereotype.Service;
    
    import com.mapper.ILalaMapper;
    import com.model.Lala;
    import com.service.ITestService;
    
    @Service("testService")
    public class TestServiceImpl implements ITestService {
    	
    	@Resource
    	private ILalaMapper lalaMapper;
    	
    	public List<Lala> findAll() {
    		return this.lalaMapper.selectAllLala();
    	}
    
    }

**10.写Controller层**

package com.controller;
    
    import java.util.List;
    
    import javax.annotation.Resource;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import com.model.Lala;
    import com.service.ITestService;
    
    @Controller
    @RequestMapping("testBase")
    public class TestController {
    	
    	@Resource
    	private ITestService testService;
    
    	@RequestMapping("testA")
    	public String test(){
    		System.out.println("进Action了");
    		List<Lala> list=this.testService.findAll();
    		for(Lala l:list){
    			System.out.println("id->"+l.getId()+",name->"+l.getName());
    		}
    		return "success";
    	}
    }

都写好之后，启动tomcat，在地址栏中输入地址——http://localhost:8080/myeclipse\_mybatis\_springmvc\_test/testBase/testA.action

结果在控制台输入的内容如下

![SouthEast 1][]

至此，MyBatis+SpringMVC+Spring最简单的整合项目完成

[http_blog.csdn.net_baimusensen_article_details_16120429]: http://blog.csdn.net/baimusensen/article/details/16120429
[SouthEast]: /images/20220828/3753687f6f7e42a68b0e2b24e7b52f8a.png
[SouthEast 1]: /images/20220828/15f7f0d19d4d4893bdc918d078061f6f.png