7: Spring+SpringMVC+Maven+Mybati

作者: 笑Skr人啊 | 来源:发表于2017-03-17 14:26 被阅读31次

开发环境介绍

IDE: MyEclipse 10.7
jdk: 1.6
maven:apache-maven-3.2.5
基本环境只要上面这些就行.
Maven的安装

1、创建表,并插入数据:

----------------------------------------------创建表
CREATE TABLE `t_user` (
  `USER_ID` int(11) NOT NULL AUTO_INCREMENT,
  `USER_NAME` char(30) NOT NULL,
  `USER_PASSWORD` char(10) NOT NULL,
  PRIMARY KEY (`USER_ID`),
  KEY `IDX_NAME` (`USER_NAME`)
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8

---------------------------------------插入数据
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD) VALUES (1, 'luoguohui', '123456');
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD) VALUES (2, 'zhangsan', '123456');

2、Maven工程创建,选择快速框架

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3 输出项目名,包(Packaging,如果只是普通的项目,选jar就好了,如果是web项目就选war,这里是web项目,所以选择war)

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4、创建好的目录如下:

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5 、添加包的依赖,编辑pom.xml文件添加如下依赖:

<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>
  <groupId>com.gp6</groupId>
  <artifactId>MyMavenProject</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  
  <properties>
        <!-- spring版本号 -->
        <spring.version>3.2.8.RELEASE</spring.version>
        <!-- log4j日志文件管理包版本 -->
        <slf4j.version>1.6.6</slf4j.version>
        <log4j.version>1.2.12</log4j.version>
        <!-- junit版本号 -->
        <junit.version>4.10</junit.version>
        <!-- mybatis版本号 -->
        <mybatis.version>3.2.1</mybatis.version>
  </properties>

  <dependencies>
        <!-- 添加Spring依赖 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</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-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</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-tx</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-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!--单元测试依赖 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit.version}</version>
            <scope>test</scope>
        </dependency>

        <!-- 日志文件管理包 -->
        <!-- log start -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <!-- log end -->

        <!--spring单元测试依赖 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>test</scope>
        </dependency>

        <!--mybatis依赖 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>

        <!-- mybatis/spring包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.0</version>
        </dependency>

        <!-- mysql驱动包 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.29</version>
        </dependency>
    </dependencies>

</project>

6、配置文件:

6、1 创建 mybatis包下添加mybatis-config.xml文件(mybatis配置文件):
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<?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>
6. 2、 创建 properties包下添加jdbc.properties文件(数据源配置文件):
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jdbc_driverClassName=com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/study
jdbc_username=root
jdbc_password=123456
6. 3、 创建 mapper包下userMapper.xml配置文件(表映射文件):
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一定要注意<mapper namespace="com.gp6.mapper.UserMapper">这一行的值是否正确
<?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.gp6.mapper.UserMapper">

<!--设置domain类和数据库中表的字段一一对应,注意数据库字段和Entity类中的字段名称不致,此处一定要!-->
    <resultMap id="BaseResultMap" type="com.gp6.entity.User">
        <id column="USER_ID" property="userId" jdbcType="INTEGER" />
        <result column="USER_NAME" property="userName" jdbcType="CHAR" />
        <result column="USER_PASSWORD" property="userPassword" jdbcType="CHAR" />
    </resultMap>
    
    
    <!-- 查询单条记录 -->
    <select id="selectUserById" parameterType="int" resultMap="BaseResultMap">
        SELECT * FROM t_user WHERE USER_ID = #{userId}
    </select>
</mapper>
6. 4、 创建 spring配置文件application.xml:
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<?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"
    
    xsi:schemaLocation=
           "http://www.springframework.org/schema/beans  
           http://www.springframework.org/schema/beans/spring-beans-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/context  
           http://www.springframework.org/schema/context/spring-context-3.0.xsd">

     <!-- 引入jdbc配置文件 -->  
     <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
               <value>classpath:properties/*.properties</value>
                <!--要是有多个配置文件,只需在这里继续添加即可 -->
            </list>
        </property>
    </bean>

    <!-- 配置数据源 -->
    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <!-- 不使用properties来配置 -->
        <!-- <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 
            <property name="url" value="jdbc:mysql://localhost:3306/study" /> 
            <property name="username" value="root" /> 
            <property name="password" value="123456" /> -->
            
            
       <!-- 使用properties来配置 ,建议使用-->
        <property name="driverClassName">
            <value>${jdbc_driverClassName}</value>
        </property>
        <property name="url">
            <value>${jdbc_url}</value>
        </property>
        <property name="username">
            <value>${jdbc_username}</value>
        </property>
        <property name="password">
            <value>${jdbc_password}</value>
        </property>
    </bean>

    <!-- 自动扫描了所有的XxxxMapper.xml对应的mapper接口文件,这样就不用一个一个手动配置Mpper的映射了,只要Mapper接口类和Mapper映射文件对应起来就可以了。 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.gp6.dao" />
    </bean>

    <!-- 配置Mybatis的文件 ,mapperLocations配置**Mapper.xml文件位置,configLocation配置mybatis-config文件位置-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 如果Mapper.xml与Mapper.class在同一个包下且同名,spring扫描Mapper.class的同时会自动扫描同名的Mapper.xml并装配到Mapper.class。
        如果Mapper.xml与Mapper.class不在同一个包下或者不同名,就必须使用配置mapperLocations指定mapper.xml的位置。
        此时spring是通过识别mapper.xml中的 <mapper namespace="com.XXX.XXX"> namespace的值来确定对应的Mapper.class的。 -->
        <!-- <property name="mapperLocations" value="classpath:mapper/*.xml"/>   -->
        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />
    </bean>

    <!-- 自动扫描注解的bean -->
    <context:component-scan base-package="com.gp6.service" />

</beans>

7 接口和类的配置:

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7.1 、com.gp6.entity 下添加User.Java文件:
package com.gp6.entity;

public class User {
    private Integer userId;  
    private String userName;  
    private String userPassword;
    
    public Integer getUserId() {
        return userId;
    }
    public void setUserId(Integer userId) {
        this.userId = userId;
    }
    public String getUserName() {
        return userName;
    }
    public void setUserName(String userName) {
        this.userName = userName;
    }
    public String getUserPassword() {
        return userPassword;
    }
    public void setUserPassword(String userPassword) {
        this.userPassword = userPassword;
    }  
}

7.2、com.gp6.mapper下添加Usermapper.java文件:
package com.gp6.mapper;

import com.gp6.entity.User;

public interface UserMapper {
    
    /**
     * @param userId
     * @return User
     */
    public User selectUserById(Integer userId);  
}

7.3、com.gp6.service下添加UserService.java接口和UserServiceImpl实现类:
  • UserService.java
package com.gp6.service;

import com.gp6.entity.User;

public interface UserService {
    public User selectUserById(Integer userId); 
}

  • UserServiceImpl.java
package com.gp6.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.gp6.entity.User;
import com.gp6.mapper.UserMapper;
import com.gp6.service.UserService;

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    UserMapper userMapper;
    
    @Override
    public User selectUserById(Integer userId) {
         return userMapper.selectUserById(userId);  
    }

}

8 单元测试

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8.1 BaseTest
package com.gp6.baseTest;

import org.junit.runner.RunWith;  
import org.springframework.test.context.ContextConfiguration;  
import org.springframework.test.context.junit4.AbstractJUnit4SpringContextTests;  
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;  

//指定bean注入的配置文件  
@ContextConfiguration(locations = { "classpath:application.xml" })  
//使用标准的JUnit @RunWith注释来告诉JUnit使用Spring TestRunner  
@RunWith(SpringJUnit4ClassRunner.class) 
public class BaseTest extends AbstractJUnit4SpringContextTests{

}

8.2 UserServiceTest
package com.gp6.serviceTest;

import org.springframework.beans.factory.annotation.Autowired;
import org.junit.Test;  
import com.gp6.baseTest.BaseTest;  
import com.gp6.entity.User;
import com.gp6.service.UserService;

public class UserServiceTest extends BaseTest {
    @Autowired  
    private UserService userService; 

    @Test  
    public void selectUserByIdTest(){  
        User user = userService.selectUserById(1);  
        System.out.println(user.getUserName() + ":" + user.getUserPassword());
    }  
}

8.3 运行单元测试,UserServiceTest右键Run As –>Junit Test,运行结果:
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8.4 添加日志配置
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  • log4j.properties
log4j.rootLogger=DEBUG,Console,Stdout  
  
#Console  
log4j.appender.Console=org.apache.log4j.ConsoleAppender  
log4j.appender.Console.layout=org.apache.log4j.PatternLayout  
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n  
  
log4j.logger.java.sql.ResultSet=INFO  
log4j.logger.org.apache=INFO  
log4j.logger.java.sql.Connection=DEBUG  
log4j.logger.java.sql.Statement=DEBUG  
log4j.logger.java.sql.PreparedStatement=DEBUG   
  
log4j.appender.Stdout = org.apache.log4j.DailyRollingFileAppender    
log4j.appender.Stdout.File = E://WorkSpace/Study/logs/MyMavenProject/log.log   
log4j.appender.Stdout.Append = true    
log4j.appender.Stdout.Threshold = DEBUG     
log4j.appender.Stdout.layout = org.apache.log4j.PatternLayout    
log4j.appender.Stdout.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n    

到这里配置好spring+mybatis+mysql!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

这里开始添加spirngMVC,并转换maven工程为web项目

9 、转换成web项目:

  • Eclipse


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  • MyEclipse

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将红框里面的勾去掉,确定(OK),然后重新打开刚刚那个页面,把Dynamic web Module勾上,就会看到红框的内容,点击:

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配置如下,然后点击OK

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至此,项目已转为WEB项目!

10 配置springmvc

10.1、pom.xml文件添加依赖,修改后配置如下:
<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.gp6</groupId>
  <artifactId>MyMavenProject</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  
  <properties>
        <!-- spring版本号 -->
        <spring.version>3.2.8.RELEASE</spring.version>
        <!-- log4j日志文件管理包版本 -->
        <slf4j.version>1.6.6</slf4j.version>
        <log4j.version>1.2.12</log4j.version>
        <!-- junit版本号 -->
        <junit.version>4.11</junit.version>
        <!-- mybatis版本号 -->
        <mybatis.version>3.2.1</mybatis.version>
  </properties>

  <dependencies>
        <!-- 添加Spring依赖 -->
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit.version}</version>
            <scope>test</scope>
        </dependency>

        <!-- 日志文件管理包 -->
        <!-- log start -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <!-- log end -->

        <!--spring单元测试依赖 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>test</scope>
        <!-- mysql驱动包 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.29</version>
        </dependency>
        
        <!-- javaee-api包 注意和项目使用的JDK版本对应 -->  
        <dependency>  
            <groupId>javax</groupId>  
            <artifactId>javaee-api</artifactId>  
            <version>6.0</version>  
            <scope>provided</scope>  
        </dependency>  

        <!-- javaee-web-api包 注意和项目使用的JDK版本对应 -->  
        <dependency>  
            <groupId>javax</groupId>  
            <artifactId>javaee-web-api</artifactId>  
            <version>6.0</version>  
            <scope>provided</scope>  
        </dependency>  
        
    </dependencies>
  
</project>

其实也就增加了下面两个

<!-- javaee-api包 注意和项目使用的JDK版本对应 -->  
        <dependency>  
            <groupId>javax</groupId>  
            <artifactId>javaee-api</artifactId>  
            <version>6.0</version>  
            <scope>provided</scope>  
        </dependency>  

        <!-- javaee-web-api包 注意和项目使用的JDK版本对应 -->  
        <dependency>  
            <groupId>javax</groupId>  
            <artifactId>javaee-web-api</artifactId>  
            <version>6.0</version>  
            <scope>provided</scope>  
        </dependency> 
10.2、在src/main/resource中添加springmvc文件夹,然后添加文件spring-mvc.xml,内容如下:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:p="http://www.springframework.org/schema/p"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  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-3.2.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.2.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

   <mvc:annotation-driven /> 
   <!-- 扫描controller(controller层注入) -->
   <context:component-scan base-package="com.gp6.controller"/>  

   <!-- 对模型视图添加前后缀 -->
   <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
      p:prefix="/WEB-INF/jsp/" p:suffix=".jsp"/>
</beans>
10.3、配置web.xml
<servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
  <!-- /*时,匹配不到jsp页面 -->
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

<?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>Archetype Created Web Application</display-name>
    
    <!-- 起始欢迎界面 -->
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <!-- 读取spring配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:application.xml</param-value>
    </context-param>
    
    <!-- 设计路径变量值 -->
    <context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>springmvc.root</param-value>
    </context-param>

    <!-- Spring字符集过滤器 -->
    <filter>
        <filter-name>SpringEncodingFilter</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>SpringEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    <!-- 监听 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- springMVC核心配置 -->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <!--spingMVC的配置路径  -->
            <param-value>classpath:springmvc/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    
    <!-- 拦截设置 -->
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

    <!-- 错误跳转页面 -->
    <error-page>
        <!-- 路径不正确 -->
        <error-code>404</error-code>
        <location>/WEB-INF/errorpage/404.jsp</location>
    </error-page>
    <error-page>
        <!-- 没有访问权限,访问被禁止 -->
        <error-code>405</error-code>
        <location>/WEB-INF/errorpage/405.jsp</location>
    </error-page>
    <error-page>
        <!-- 内部错误 -->
        <error-code>500</error-code>
        <location>/WEB-INF/errorpage/500.jsp</location>
    </error-page>
</web-app>
10.4、添加index.jsp,在src/main/webapp/WEB-INF下新建一个文件夹jsp,添加一个index.jsp,内容如下:
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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<html>
<body>
<h2>Hello World!</h2>
用户名: ${user.userName}<br>
 密码:${user.userPassword}<br>
</body>
</html>

10.5、写controller
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在src/main/java下新建一个包com.gp6.controller.然后新建一个类UserController.java,其内容如下

package com.gp6.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.gp6.entity.User;
import com.gp6.service.UserService;

@Controller
public class UserController {
    @Resource  
    private UserService userService;  

    @RequestMapping("/")    
    public ModelAndView getIndex(){      
        ModelAndView modelAndView = new ModelAndView("index");   
        User user = userService.selectUserById(1);  
        modelAndView.addObject("user", user);   
        return modelAndView;    
    }    
}

10.6 运行!!!!完成!
Paste_Image.png

11、源码下载

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