spring+springMVC+Mybatis整合

一时失言乱红尘 2022-08-20 07:23 132阅读 0赞

首先准备整合需要的jar包，我都是去官网下载的最新jar文件具体需要的jar文件如图：

![Center][]

创建的项目结构如图：

![Center 1][]

首先数据库配置文件jdbc.properties内容如下:

driver=com.mysql.jdbc.Driver
    url=jdbc:mysql://127.0.0.1:3306/ssm
    username=root
    password=root
    initialSize=0
    maxIdle=20
    minIdle=1

log4j.properties内容如下:

log4j.rootLogger=INFO,Console,File  
    #定义日志输出目的地为控制台  
    log4j.appender.Console=org.apache.log4j.ConsoleAppender  
    log4j.appender.Console.Target=System.out  
    #可以灵活地指定日志输出格式，下面一行是指定具体的格式  
    log4j.appender.Console.layout = org.apache.log4j.PatternLayout  
    log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n  
      
    #文件大小到达指定尺寸的时候产生一个新的文件  
    log4j.appender.File = org.apache.log4j.RollingFileAppender  
    #指定输出目录  
    log4j.appender.File.File = logs/ssm.log  
    #定义文件最大大小  
    log4j.appender.File.MaxFileSize = 10MB  
    # 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志  
    log4j.appender.File.Threshold = ALL  
    log4j.appender.File.layout = org.apache.log4j.PatternLayout  
    log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

spring-mybatis.xml配置文件内容如下:

<?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-4.2.xsd    
                            http://www.springframework.org/schema/context    
                            http://www.springframework.org/schema/context/spring-context-4.2.xsd    
                            http://www.springframework.org/schema/mvc    
                            http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">  
          
        <context:component-scan base-package="com.project.ssm" />  
          
        <bean id="propertyConfigurer"  
            class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
            <property name="location" value="classpath:jdbc.properties" />  
        </bean>  
      
        <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"  
            destroy-method="close">  
            <property name="driverClassName" value="${driver}" />  
            <property name="url" value="${url}" />  
            <property name="username" value="${username}" />  
            <property name="password" value="${password}" />  
              
            <property name="initialSize" value="${initialSize}"></property>  
              
            <property name="maxIdle" value="${maxIdle}"></property>  
              
            <property name="minIdle" value="${minIdle}"></property>  
            
        </bean>  
      
          
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
            <property name="dataSource" ref="dataSource" />  
              
            <property name="mapperLocations" value="classpath:com/project/ssm/mapping/*.xml"></property>  
        </bean>  
      
          
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
            <property name="basePackage" value="com.project.ssm.dao" />  
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  
        </bean>  
      
          
        <bean id="transactionManager"  
            class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
            <property name="dataSource" ref="dataSource" />  
        </bean>  
      
    </beans>

spring-mvc.xml配置内容如下:

<?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-4.2.xsd    
                            http://www.springframework.org/schema/context    
                            http://www.springframework.org/schema/context/spring-context-4.2.xsd    
                            http://www.springframework.org/schema/mvc    
                            http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">  
          
        <context:component-scan base-package="com.project.ssm.controller" />  
          
        <bean id="mappingJacksonHttpMessageConverter"  
            class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">  
            <property name="supportedMediaTypes">  
                <list>  
                    <value>text/html;charset=UTF-8</value>  
                </list>  
            </property>  
        </bean>  
          
        <bean  
            class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">  
            <property name="messageConverters">  
                <list>  
                    <ref bean="mappingJacksonHttpMessageConverter" />   
                </list>  
            </property>  
        </bean>  
          
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
              
            <property name="prefix" value="/WEB-INF/jsp/" />  
            <property name="suffix" value=".jsp" />  
        </bean>  
          
          
        <bean id="multipartResolver"    
            class="org.springframework.web.multipart.commons.CommonsMultipartResolver">    
              
            <property name="defaultEncoding" value="utf-8" />    
              
            <property name="maxUploadSize" value="10485760000" />    
              
            <property name="maxInMemorySize" value="40960" />    
        </bean>   
      
    </beans>

mybatis对应的映射文件可以参考 [http://blog.csdn.net/gaoxuaiguoyi/article/details/50666695][http_blog.csdn.net_gaoxuaiguoyi_article_details_50666695]这里面讲了mybatis自动生成映射文件方法。

IUserService.java内容:

package com.project.ssm.service;
    
    import java.util.List;
    
    import com.project.ssm.entity.User;
    
    public interface IUserService {
    	
    	public User getUserById(int userId);
    	
    	public void addUser(User user);
    	
    	public List<User> getUserList();
    
    }

UserServiceImpl.java内容:

package com.project.ssm.service.Impl;
    
    
    import java.util.List;
    
    import javax.annotation.Resource;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    import com.project.ssm.dao.IUserDao;
    import com.project.ssm.entity.User;
    import com.project.ssm.service.IUserService;
    
    @Service
    public class UserServiceImpl implements IUserService {
    
    	@Resource
    	private IUserDao userDao;
    
    	/**
    	 * 根据id查询用户
    	 */
    	@Override
    	public User getUserById(int userId) {
    		
    		return userDao.selectByPrimaryKey(userId);
    	}
    	/**
    	 * 添加用户
    	 */
    	@Override
    	public void addUser(User user) {
    		
    		userDao.insert(user);
    	}
    	/**
    	 * 用户列表
    	 */
    	@Override
    	public List<User> getUserList() {
    		
    		return userDao.selectAllUser();
    	}
    
    }

UserController.java控制器内容:

package com.project.ssm.controller;
    
    import java.util.List;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletRequest;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import com.project.ssm.entity.User;
    import com.project.ssm.service.IUserService;
    
    @Controller
    @RequestMapping("/user")
    public class UserController {
    	
    	@Resource
    	private IUserService userService;
    	
    	/**
    	 * 根据id查询指定用户
    	 * @param request
    	 * @param model
    	 * @return
    	 */
    	@RequestMapping("/showUser")  
        public String showUser(HttpServletRequest request,Model model){  
    		
            int userId = Integer.parseInt(request.getParameter("id"));  
            
            User user  = this.userService.getUserById(userId); 
            
            model.addAttribute("user", user);  
            
            System.out.println(user.toString());
            return "showUser";  
    	}
    	/**
    	 * 用户列表
    	 * @param request
    	 * @param model
    	 * @return
    	 */
    	@RequestMapping("/userList")  
        public String userList(HttpServletRequest request,Model model){  
    		
            List<User> list  = this.userService.getUserList();
            
            model.addAttribute("userlist", list);  
            
            return "userlist";  
    	}
    
    }

界面view:

userlist.jsp内容如下:

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core_rt" %>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>">
        
        <title>用户列表</title>
        
    	<meta http-equiv="pragma" content="no-cache">
    	<meta http-equiv="cache-control" content="no-cache">
    	<meta http-equiv="expires" content="0">    
    	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    	<meta http-equiv="description" content="This is my page">
    	
    
      </head>
      
      <body>
        
        <table width="500px" border="1px">
        	
        	<thead>
        	  <tr>
        	    <th>ID</th>
        	  	<th>用户名</th>
        	  	<th>密码</th>
        	  </tr>
        	
        	</thead>
        	<tbody>
        	  <c:forEach var="user" items="${ userlist }">
        	  
        	    <tr>
        	    	<td><c:out value="${ user.id }"></c:out></td>
        	    	<td><c:out value="${ user.username }"></c:out></td>
        	    	<td><c:out value="${ user.password }"></c:out></td>
        	    </tr>
        	  
        	  </c:forEach>
        	</tbody>
        </table>
      </body>
    </html>

showUser.jsp内容如下:

运行地址:http://localhost:8080/SSM/user/showUser.do?id=1

![Center 2][]  
  
  
运行地址:http://localhost:8080/SSM/user/userList.do

![Center 3][]  
  
  
整合完毕。  
源码下载地址:[http://download.csdn.net/detail/gaoxuaiguoyi/9431979][http_download.csdn.net_detail_gaoxuaiguoyi_9431979]

建议JDK版本1.7  Tomcat：7.x

[Center]: /images/20220731/69f4448c2e204c4eb7994ebd1ff1655a.png
[Center 1]: /images/20220731/58e7d5e6ec6d4f62ad0852b3dc8e8143.png
[http_blog.csdn.net_gaoxuaiguoyi_article_details_50666695]: http://blog.csdn.net/gaoxuaiguoyi/article/details/50666695
[Center 2]: /images/20220731/3179e368fec5465aa2607e19bcf7c5d2.png
[Center 3]: /images/20220731/6962fde0f35c4551b791041d6e268381.png
[http_download.csdn.net_detail_gaoxuaiguoyi_9431979]: http://download.csdn.net/detail/gaoxuaiguoyi/9431979