Spring MVC、Spring和Mybatis整合环境搭建

程序员文章站 2022-05-11 17:19:12

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一、基础环境准备

1. 创建Java Web工程，引入依赖的相关jar

commons-logging-1.1.jar

mybatis-3.3.0.jar

mybatis-spring-1.2.4.jar

mysql-connector-java-5.0.2.jar

spring-aop-4.3.2.RELEASE.jar

spring-beans-4.3.2.RELEASE.jar

spring-context-4.3.2.RELEASE.jar

spring-context-support-4.3.2.RELEASE.jar

spring-core-4.3.2.RELEASE.jar

spring-expression-4.3.2.RELEASE.jar

spring-jdbc-4.3.2.RELEASE.jar

spring-tx-4.3.2.RELEASE.jar

spring-web-3.2.4.RELEASE.jar

spring-webmvc-3.2.4.RELEASE.jar

2. 在mysql中创建数据库coredb，并创建测试表user

SET FOREIGN_KEY_CHECKS=0;

DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `userName` varchar(50) DEFAULT NULL,
  `password` varchar(50) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

INSERT INTO `user` VALUES ('1', 'tuozixuan', '111111');

二、编写示例代码

1. 创建若干包

com.tuozixuan.one.controller

com.tuozixuan.one.service

com.tuozixuan.one.service.impl

com.tuozixuan.one.mapper

com.tuozixuan.one.model

2. 编写示例代码

#############UserController#############

package com.tuozixuan.one.controller;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.servlet.ModelAndView;

import com.tuozixuan.one.service.UserService;

@Controller

public class UserController

{

@Resource

private UserService userService;

@RequestMapping("/getUser")

public ModelAndView hello()

{

System.out.println("getUser start");

userService.getUser();

System.out.println("getUser end");

ModelAndView mv = new ModelAndView("user");

return mv;

}

#############UserService#############

package com.tuozixuan.one.service;

import com.tuozixuan.one.model.UserModel;

public interface UserService

{

UserModel getUser();

}

#############UserServiceImpl#############

package com.tuozixuan.one.service.impl;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import com.tuozixuan.one.mapper.UserMapper;

import com.tuozixuan.one.model.UserModel;

import com.tuozixuan.one.service.UserService;

@Service

public class UserServiceImpl implements UserService

{

@Resource

private UserMapper userMapper;

public UserModel getUser()

{

List<UserModel> userList = userMapper.getUser();

if (userList.size() > 0)

{

System.out.println("user:" + userList.get(0).getUserName());

}

return null;

}

#############UserMapper#############

package com.tuozixuan.one.mapper;

import java.util.List;

import com.tuozixuan.one.model.UserModel;

public interface UserMapper

{

List<UserModel> getUser();

}

#############UserModel#############

package com.tuozixuan.one.model;

public class UserModel

{

private String userName;

public String getUserName()

{

return userName;

}

public void setUserName(String userName)

{

this.userName = userName;

}

#############UserMapper.xml#############

<?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">

SELECT * FROM user

</select>

</mapper>

#############user.jsp#############

在WebRoot下创建user.jsp，内容任意

三、SSM整合配置文件

1. web.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 
	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_3_0.xsd">
  <display-name></display-name>	
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  
  	<!-- spring配置文件 -->
	<context-param>  
        <param-name>contextConfigLocation</param-name>  
        <param-value>classpath:spring.xml</param-value>  
  	</context-param>
  	
  	<!-- Spring监听 -->
  	<listener>
	 	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
  
  	<!-- Spring MVC配置 -->
	<servlet>
		<servlet-name>springMvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:spring-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springMvc</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

2. 在src目录下新建spring-mvc.xml配置文件

<?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"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:util="http://www.springframework.org/schema/util" xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
     
    <!-- 注解的方式驱动 -->
	<mvc:annotation-driven />
	
    <!-- 对controller包中的所有类进行扫描，以完成Bean创建和自动依赖注入的功能 -->
    <context:component-scan base-package="com.tuozixuan.one"/>
    
    <!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 -->
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>
    
    <!--视图解析器 -->
    <bean id="viewResolverCommon" class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
    	<property name="prefix" value="/" />  
    	<property name="suffix" value=".jsp" />  
	</bean>  

</beans>

3. 在src目录下新建spring.xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:context="http://www.springframework.org/schema/context"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:util="http://www.springframework.org/schema/util"
 	xmlns:aop="http://www.springframework.org/schema/aop"
 	xmlns:tx="http://www.springframework.org/schema/tx"
  	xmlns:cache="http://www.springframework.org/schema/cache "
   	xmlns:p="http://www.springframework.org/schema/p"
 	xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans.xsd
      http://www.springframework.org/schema/util 
      http://www.springframework.org/schema/util/spring-util.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/cache
      http://www.springframework.org/schema/cache/spring-cache-4.1.xsd ">	



	<!-- 数据源配置 -->
	<bean id="jdbcDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="org.gjt.mm.mysql.Driver"/>
		<property name="url" value="jdbc:mysql://localhost:3306/coredb?useUnicode=true&amp;characterEncoding=UTF-8"/>
		<property name="username" value="root"/>
		<property name="password" value="password"/>
	</bean>
	
	<!-- mybatis文件配置，扫描所有mapper文件 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="jdbcDataSource"></property>
		<property name="configLocation" value="classpath:mybatis-config.xml"></property>
		<property name="mapperLocations" value="classpath:com/tuozixuan/one/mapper/*.xml"></property>
	</bean>
	
	<!-- spring与mybatis整合配置，扫描所有dao -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    	<property name="basePackage" value="com.tuozixuan.one.mapper" ></property>
    	<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" ></property>
  	</bean>
	

</beans>

4. 在src目录下新建mybatis-config.xml配置文件

<?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>

四、运行与结果

1. 把web工程部署到tomcat里，在浏览器中访问http://localhost:8080/one/getUser，发现可以访问到user.jsp, 并在控制台打印出了日志内容:

getUser start

user:tuozixuan

getUser end

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