springMVC+mybatis 框架整合

时间：2016-05-23 15:12:23 阅读：306 评论：0 收藏：0 [点我收藏+]

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本人初学springMVC框架，如有写的不对地方，请指出，本人会非常感谢：

开发前的准备工作
1.准备好springMVC，及mybatis要用的jar包，如果你会maven，也可以用maven管理项目（不用准备jar包，在pom.xml配置好jar的依赖关系），本人没有使用maven
所需的jar包如图所示：
springMVC所需jar包

技术分享

2.mybatis所需jar包，oracle驱动，阿里Druid数据源工具，及spring相关包

技术分享

建立用eclipse建立Javaweb Dynamic web project项目
1.项目目录如图所示：
介绍配置文件
1. SpringMVC 核心配置文件 web.xml，该文件是整个项目的入口，
  具体代码如下：

<?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"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="WebApp_ID" version="3.0">

    <display-name>proj_springmvc</display-name>
    <!-- 指定Spring Bean的配置文件所在目录。默认配置在WEB-INF目录下 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:com/it/config/applicationContext-*.xml</param-value>
    </context-param>

    <!-- Spring MVC配置 -->
    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 可以自定义servlet.xml配置文件的位置和名称，默认为WEB-INF目录下，名称为[<servlet-name>]-servlet.xml，如spring-servlet.xml -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/springmvc-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>



    <!-- Spring配置 -->
    <!-- ====================================== -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- 项目文件编码设置 -->

    <filter>
        <filter-name>encodingFilter</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>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 项目启动时搜索加载的开始页面的顺序 -->


    <!-- 静态资源加载 -->
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.jpg</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.js</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.css</url-pattern>
    </servlet-mapping>

 <!-- 首頁配置 -->
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
    </welcome-file-list>
</web-app>

2.spring上下文配置文件applicationContext-core.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:tx="http://www.springframework.org/schema/tx"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="  
        http://www.springframework.org/schema/beans   
        http://www.springframework.org/schema/beans/spring-beans-4.1.xsd   
        http://www.springframework.org/schema/tx   
        http://www.springframework.org/schema/tx/spring-tx-4.1.xsd  
        http://www.springframework.org/schema/aop   
        http://www.springframework.org/schema/aop/spring-aop-4.1.xsd ">
    <!-- 引入数据库连接属性配置文件，给dataSource作参数 -->
    <bean id="propertyConfigurer"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="classpath:jdbc.properties" />
    </bean>

    <!-- 配置数据源 使用的是阿里Druid数据源 -->
    <bean id="dataSource" name="dataSource"
        class="com.alibaba.druid.pool.DruidDataSource" init-method="init"
        destroy-method="close">
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />

        <!-- 初始化连接大小 -->
        <property name="initialSize" value="0" />
        <!-- 连接池最大使用连接数量 -->
        <property name="maxActive" value="20" />

        <!-- 连接池最小空闲 -->
        <property name="minIdle" value="0" />
        <!-- 获取连接最大等待时间 -->
        <property name="maxWait" value="60000" />
        <property name="poolPreparedStatements" value="true" />
        <property name="maxPoolPreparedStatementPerConnectionSize"
            value="33" />
        <!-- 用来检测有效sql -->
        <property name="validationQuery" value="${validationQuery}" />
        <property name="testOnBorrow" value="false" />
        <property name="testOnReturn" value="false" />
        <property name="testWhileIdle" value="true" />
        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="60000" />
        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="25200000" />
        <!-- 打开removeAbandoned功能 -->
        <property name="removeAbandoned" value="true" />
        <!-- 1800秒，也就是30分钟 -->
        <property name="removeAbandonedTimeout" value="1800" />
        <!-- 关闭abanded连接时输出错误日志 -->
        <property name="logAbandoned" value="true" />
        <!-- 监控数据库 -->
        <property name="filters" value="mergeStat" />
    </bean>


    <!-- mybatis的连接sqlSessionFactory配置 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation" value="classpath:config.xml" />

        <!-- 自动扫描 model目录中的映射xml文件，省去了在config中手工配置<mappers> -->

        <property name="mapperLocations" value="classpath:com/it/mapping/*.xml" />
    </bean>


    <!-- mybatis扫描对应的接口层-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <property name="basePackage" value="com.it.dao" />

        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />

    </bean>


    <!-- 4. 事务管理 : DataSourceTransactionManager dataSource:引用上面定义的数据源 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>


    <!-- 拦截器方式配置事物 -->
    <tx:advice id="transactionAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />

            <tx:method name="get*" propagation="SUPPORTS" read-only="true" />
            <tx:method name="find*" propagation="SUPPORTS" read-only="true" />
            <tx:method name="select*" propagation="SUPPORTS" read-only="true" />

        </tx:attributes>
    </tx:advice>
    <!-- Spring aop事务管理 -->
    <aop:config>
        <aop:pointcut id="transactionPointcut"
            expression="execution(* com.it.service..*Impl.*(..))" />
        <aop:advisor pointcut-ref="transactionPointcut"
            advice-ref="transactionAdvice" />
    </aop:config>


</beans>

3.springMVC配置基本配置文件（springmvc-servlet.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:tx="http://www.springframework.org/schema/tx"
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-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-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/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

  <!-- 默认的注解映射的支持 -->
    <mvc:annotation-driven />

    <!--自动扫描含有@Service将其注入为bean -->  
    <context:component-scan base-package="com.it.serviceImpl" /> 

    <!-- 自动扫描的controller包名 -->
    <context:component-scan base-package="com.it.controller" /> 

    <!-- 视图解释类 -->
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>

4.mybatis映射文件（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">
 <mapper namespace="com.it.dao.UserMapper">
 <!-- namespace和定义的Mapper接口对应，并实现其中的方法 -->

   <resultMap type="com.it.bean.User" id="userResultMap">
        <id property="id" column="ID" />
        <result property="name" column="NAME"/>
        <result property="age" column="AGE" />

   </resultMap>

     <select id="getUser" parameterType="String" 
         resultMap="userResultMap">
         select * from users where id=#{id}
     </select>

     <select id="getAllUser" 
        resultType="list"  resultMap="userResultMap">
         select * from users 
     </select>

     <select id="addUser" parameterType="com.it.bean.User">

        insert into users values(#{id}, #{name},#{age})   
     </select>
     <delete id="delUser" parameterType="String">

     delete from users where id=#{id}


     </delete>
     <update id="updateUser" parameterType="com.it.bean.User">

     update users set name=#{name},age=#{age} where id=#{id}

     </update>

  </mapper>

5.mybatis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>
      <environments default="development">
         <environment id="development">
             <transactionManager type="JDBC" />
         <!-- 配置数据库连接信息 -->   
             <dataSource type="POOLED">
           <!--      <property name="driver" value="com.mysql.jdbc.Driver" />
                 <property name="url" value="jdbc:mysql://localhost:3306/test" /> -->

                 <property name="driver" value="oracle.jdbc.driver.OracleDriver" />
                 <property name="url" value="jdbc:oracle:thin:@localhost:1521:orcl" />
               <property name="username" value="username" />
                 <property name="password" value="1234546" />
             </dataSource>
         </environment>
    </environments> 

    <!--  <mappers>
        注册userMapper.xml文件， 
        userMapper.xml位于me.gacl.mapping这个包下，所以resource写成me/gacl/mapping/userMapper.xml
       <mapper resource="com/it/mapping/userMapper.xml"/>
     </mappers> -->

</configuration>

6.数据库连接属性配置文件（jdbc.properties）

#mysql version database druid setting  
 validationQuery=SELECT 1  
 jdbc.url=jdbc:oracle:thin:@localhost:1521:orcl  

 #jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8  
 jdbc.username=username
 jdbc.password=123456

项目bean层,dao层,service层的具体实现
1.实体bean层实现：

package com.it.bean;

public class User {
    private String id;
    private String name;
    private String age;
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getAge() {
        return age;
    }
    public void setAge(String age) {
        this.age = age;
    }

      @Override
          public String toString() {
             return "User [id=" + id + ", name=" + name + ", age=" + age + "]";
         }



}

2.接口dao层实现，接口层名称，方法名必须和映射文件的的空间名，方法名一致：

package com.it.dao;
import java.util.List;
import com.it.bean.User;

public interface UserMapper {

public User getUser(String id);  

public List<User> getAllUser();  

public void addUser(User user);  

public boolean delUser(String id);  

public boolean updateUser(User user);  



}

3.service层的实现，包括两个文件接口文件（UserService.java）和实现文件（UserServiceImpl.java）,UserService接口文件和dao层接口文件一致，在这里就不贴UserService.java 代码，UserServiceImpl.java实现层代码如下；

package com.it.serviceImpl;

import java.util.List;
import javax.annotation.Resource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.it.bean.User;
import com.it.dao.UserMapper;
import com.it.service.UserService;
@Service("userService") 
public class UserServiceImpl implements UserService{
    @Autowired
 private  UserMapper usermapper;   


    @Override
    public User getUser(String id) {

        return usermapper.getUser(id);
    }

    @Override
    public List<User> getAllUser() {

        return usermapper.getAllUser();
    }

    @Override
    public void addUser(User user) {
        usermapper.addUser(user);

    }

    @Override
    public boolean delUser(String id) {

        return usermapper.delUser(id);
    }

    @Override
    public boolean updateUser(User user) {

        return usermapper.updateUser(user);
    }

}

4.控制层com.it.controller（UserController.java）,主要实现业务逻辑，页面跳转功能

package com.it.controller;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.it.bean.User;
import com.it.service.UserService;

@Controller  
@RequestMapping("/user")  
public class UserController {  

@Autowired
private UserService userService;  


@RequestMapping("/getAllUser")  
public String getAllUser(HttpServletRequest request){  
    request.setAttribute("userList", userService.getAllUser());  
    System.out.println(">>>>>>>>>>>getAllUser>>>>>>>>>>>>>>>");
    return "/Index";  
}  

@RequestMapping("/getUser")  
public String getUser(String id,HttpServletRequest request){  
    request.setAttribute("user", userService.getUser(id));  
    return "/editUser";  
}  

@RequestMapping("/toAddUser")  
public String toAddUser(){  
    return "/addUser";  
}  

@RequestMapping("/addUser")  
public String addUser(User user,HttpServletRequest request){  
    System.out.println("用户名：======"+user.getName());  
    System.out.println("用户名：======"+user.getAge()); 
    user.setId(String.valueOf(System.currentTimeMillis()));
    userService.addUser(user);  
    return "redirect:/user/getAllUser";  
}  

@RequestMapping("/delUser")  
public void delUser(String id,HttpServletResponse response){  
    String result = "{\"result\":\"error\"}";  
    if(userService.delUser(id)){  
        result = "{\"result\":\"success\"}";  
    }  
    response.setContentType("application/json");  
    try {  
        PrintWriter out = response.getWriter();  
        out.write(result);  
    } catch (IOException e) {  
        e.printStackTrace();  
    }  
}  

@RequestMapping("/updateUser")  
public String updateUser(User user,HttpServletRequest request){  
    System.out.println("------user.getId()------"+user.getId());
    System.out.println("------user.getName()------"+user.getName());
    System.out.println("------user.getAge()------"+user.getAge());
    if(userService.updateUser(user)){  

        user = userService.getUser(user.getId());  
        request.setAttribute("user", user);  
        return "redirect:/user/getAllUser";  
    }else{  
        return "/error";  
    }  
}  
}

5.编写实现层应该注意的地方
@Autowired
private UserService userService;

@Service(“userService”)

Spring 2.5 引入了 @Autowired 注释，它可以对类成员变量、方法及构造函数进行标注，完成自动装配的工作。通过 @Autowired的使用来消除 set ，get方法。
- 主要页面
1.首页（Login.jsp）

<%@ page language="java" contentType="text/html; charset=UTF-8"  
pageEncoding="UTF-8"%>  
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  
<html>  
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  
<title>首页</title>  
</head>  
<body>  
<h5><a href="/proj_springmvc/user/getAllUser">进入用户管理页</a></h5>
</body>  
</html>

结果展示功能页面（Index.jsp）

<%@ page language="java" contentType="text/html; charset=UTF-8"  
pageEncoding="UTF-8"%>  
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  
<html>  
<head>
<%
    String path = request.getContextPath();
%>
<script type="text/javascript" src="<%=path%>/js/jquery-1.7.2.min.js"></script>  
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  
<title>Insert title here</title>  
<script type="text/javascript">  
    function del(id){  
    $.get("/proj_springmvc/user/delUser?id=" + id,function(data){  
        if("success" == data.result){  
            alert("删除成功");  
            window.location.reload();  
        }else{  
            alert("删除失败");  
        }  
    });  
}  
</script>  
</head>  
<body>  
    <h6><a href="/proj_springmvc/user/toAddUser">添加用户</a></h6>  
    <table border="1">  
        <tbody>  
        <tr>  
            <th>姓名</th>  
            <th>年龄</th>  
            <th>操作</th>  
        </tr>  
        <c:if test="${!empty userList }">  
            <c:forEach items="${userList }" var="user">  
                <tr>  
                    <td>${user.name }</td>  
                    <td>${user.age }</td>  
                    <td>  
                        <a href="/proj_springmvc/user/getUser?id=${user.id }">编辑</a>  
                        <a href="javascript:del(‘${user.id }‘)">删除</a>  
                    </td>  
                </tr>               
            </c:forEach>  
        </c:if>  
    </tbody>  
</table>  
</body>  
</html>

3.更新页面（editUser.jsp）

<%@ page language="java" contentType="text/html; charset=UTF-8"  
pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> 
<%@ page import="java.util.*"%> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  
<html>  
<head>
<%
String path = request.getContextPath();
%>  
<script type="text/javascript" src="<%=path %>/js/jquery-1.7.2.min.js"></script>  
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  
<title>Insert title here</title>  
</head>  
<body>  
<h1>编辑用户</h1>  
<form action="/proj_springmvc/user/updateUser" name="userForm" method="post">  
    <input type="hidden" name="id" value="${user.id }">  
    姓名：<input type="text" name="name" value="${user.name }">  
    年龄：<input type="text" name="age" value="${user.age }">  
    <input type="submit" value="编辑" >  
</form>  
</body>  
</html>

4.添加页面（addUser.jsp）

<%@ page language="java" contentType="text/html; charset=UTF-8"  
pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>  
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  
<html>  
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  
<title>Insert title here</title>  
<script type="text/javascript">  
function addUser(){  
    var form = document.forms[0];  
    form.action = "/proj_springmvc/user/addUser";  
    form.method="post";  
    form.submit();  
}  
</script>  
</head>  
<body>  
<h1>添加用户</h1>  
<form action="" name="userForm">  
    姓名：<input type="text" name="name">  
    年龄：<input type="text" name="age">  
    <input type="button" value="添加" onclick="addUser()">  
</form>  
</body>  
</html>

springMVC+mybatis 框架整合

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原文地址：http://blog.csdn.net/beawesome/article/details/51480824

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