Springmvc、Spring和mybatis的整合

Springmvc、Spring和mybatis的整合

Springmvc、Spring和mybatis的整合主要是配置文件中的更改,我们在mybatis中配置的数据库的路径和接口的路径,都交个Spring的事务来管理,其他的大致不变。

代码如下:

我们先写index.jsp页面中 的代码

代码如下:

<%@ page language="java"contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTDHTML 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>Mybatis+SpringMVC集成</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>

<!-- form表单提交到controller中去 -->

     <form action="./user/orno">

        <input type="text" name="uid"/>

        <input type="submit"/>

     </form>

</body>

</html>

在就是我们的controller类了

代码如下:

package com.huweiyang.Controller;

 

import java.util.List;

 

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 org.springframework.web.servlet.ModelAndView;

 

import com.huweiyang.IUDAO.UserMaperIU;

import com.huweiyang.bean.Order;

//表明这个类是controller

@Controller

//第一层路径

@RequestMapping("/user")

publicclassUserController {

//用自动装配将接口实例化

   @Autowired

   UserMaperIUusermaper;

//第二层路径

   @RequestMapping("/orno")

//定义一个方法来掉用接口中的方法

   public ModelAndViewlistall(HttpServletRequest request,HttpServletResponse response){

//   获取jsp页面中的值,并将它转换为int类型

     intid = Integer.parseInt(request.getParameter("uid"));

//   调用接口中的方法

     List<Order>orders= usermaper.UserSelect(id);

//   ModelAndView函数返回跳转到user——dorder.jsp页面中去

     ModelAndViewmav=new ModelAndView("user_order");

//   通过ModelAndView用键值对的方法将值传到jsp页面中去

     mav.addObject("orders",orders);

//   将这个函数返回出去

     returnmav;

   }

}

接着是我们的实体类:

实体类:

User:

package com.huweiyang.bean;

 

import java.util.List;

 

 

publicclassUser {

   privateintid;

   publicint getId() {

     returnid;

   }

   publicvoid setId(intid) {

     this.id = id;

   }

   public String getUsername() {

     returnusername;

   }

   publicvoid setUsername(String username) {

     this.username = username;

   }

   public String getMobile() {

     returnmobile;

   }

   publicvoid setMobile(String mobile) {

     this.mobile = mobile;

   }

   public List<Order>getOrder() {

     returnorder;

   }

   publicvoidsetOrder(List<Order> order) {

     this.order = order;

   }

   private String username;

   private String mobile;

   private List<Order> order;

}

Order:

package com.huweiyang.bean;

 

publicclassOrder {

   privateint order_id;

   privateint user_id;

   private String order_no;

   private String money;

   private User user;

   publicint getOrder_id() {

     return order_id;

   }

   publicvoid setOrder_id(int order_id) {

     this.order_id = order_id;

   }

   publicint getUser_id() {

     return user_id;

   }

   publicvoid setUser_id(int user_id) {

     this.user_id = user_id;

   }

   public String getOrder_no() {

     return order_no;

   }

   publicvoid setOrder_no(Stringorder_no) {

     this.order_no = order_no;

   }

   public String getMoney() {

     return money;

   }

   publicvoid setMoney(String money){

     this.money = money;

   }

   public User getUser() {

     return user;

   }

   publicvoid setUser(User user) {

     this.user = user;

   }

}

在就是我们的接口了

代码如下:

package com.huweiyang.IUDAO;

 

import java.util.List;

 

import com.huweiyang.bean.Order;

 

public interface UserMaperIU {

     

      publicList<Order> UserSelect(int id);

}

接着是我们的mybatis的实体类的配置

代码如下:

<?xml version="1.0"encoding="UTF-8"?>

<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTDMapper 3.0//EN" "mybatis-3-mapper.dtd">

<mapper namespace="com.huweiyang.IUDAO.UserMaperIU">

   <resultMap type="Order" id="MapOrder">

        <result property="order_id" column="order_id"/>

        <result property="user_id" column="order_id"/>

        <result property="order_no" column="order_no"/>

        <result property="money" column="money"/>

<!--    这里的association属性中的property的值是我们数据表中的表名,而JavaType是我们的实体类的类名 -->

     <association property="user" javaType="User">

        <id property="id"column="id"/>

        <result property="username" column="username"/>

        <result property="mobile" column="mobile"/>

     </association>

   </resultMap>

<!-- 编写关联两种表的sql语句 -->

   <select id="UserSelect" resultMap="MapOrder" parameterType="int">

     SELECTu.*,o.* FROM `user` u, `order` o WHERE u.id=o.user_id AND u.id=#{id}

   </select>

  

</mapper>

然后是我们的mybatis的主配置:

代码如下:

<?xml version="1.0"encoding="UTF-8"?>

<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTDconfig 3.0//EN" "mybatis-3-config.dtd">

<configuration>

<!-- mybatis的主配置 -->

   <typeAliases>

<!-- 表明实体类的路径 -->

     <typeAlias type="com.huweiyang.bean.User" alias="User"/>

     <typeAlias type="com.huweiyang.bean.Order" alias="Order"/>

   </typeAliases>

</configuration>

接着是我们的Spring配置

代码如下:

<?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:context="http://www.springframework.org/schema/context"

   xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd

     http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-3.0.xsd"

    

     default-autowire="byName" default-lazy-init="false"

     ><!--        自动装配是用什么方法     -->

  

     <context:property-placeholder />

 

<!--    配置MySQL的连接方式 -->

     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">

        <property name="driverClassName" value="com.mysql.jdbc.Driver" />

        <property name="url"

        value="jdbc:mysql://127.0.0.1:3306/springmv?characterEncoding=utf8"/>

        <property name="username" value="root"/>

        <property name="password" value="lookme"/>

     </bean>

<!--    配置mybatis的主配置文件的路径 -->

     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="dataSource" ref="dataSource"/>

        <property name="configLocation" value="classpath:config/confController.xml"/>

        <property name="mapperLocations" value="classpath*:com/huweiyang/IUDAO/*.xml"/>

     </bean>

     <!--    配置接口路径-->

     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <property name="basePackage" value="com.huweiyang.IUDAO"/>

     </bean>

    

     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

        <property name="dataSource" ref="dataSource"/>

     </bean>

</beans>

在是Springmvc的配置

代码如下:

<?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:context="http://www.springframework.org/schema/context"

   xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd

     http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-3.0.xsd">

<!--    进入那个包下面的controller -->

     <context:component-scan base-package="com.huweiyang.Controller" />

    

<!--    配置前缀和后缀 -->

     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix">

          <value>../page/</value>

        </property>

        <property name="suffix">

          <value>.jsp</value>

        </property>

     </bean>

</beans>

然后是我们的web.xml的配置

代码如下:

<?xml version="1.0"encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://xmlns.jcp.org/xml/ns/javaee"xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaeehttp://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">

 <display-name>Mybatis_spring_springmvc_11.20</display-name>

 <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>

 

<!--   配置过滤器 -->

  <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>

  

<!-- 配置spring的内置配置 -->

   <context-param>

        <param-name>contextConfigLocation</param-name>

   <param-value>classpath*:config/applicationContext.xml</param-value>

   </context-param>

  

   <listener>

   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

   </listener>

   <servlet>

     <servlet-name>spring-mvc</servlet-name>

   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

     <load-on-startup>1</load-on-startup>

   </servlet>

   <servlet-mapping>

     <servlet-name>spring-mvc</servlet-name>

     <url-pattern>/</url-pattern>

   </servlet-mapping>

</web-app>

最后是我们的实现功能的jsp页面

代码如下:

<%@ page language="java"contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTDHTML 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">

<!-- 启动c标签 -->

<%@ taglib prefix="c"uri="http://java.sun.com/jsp/jstl/core"%>

<title>Insert title here</title>

</head>

<body>

<!-- c标签将集合中的值遍历出来,相当于for循环-->

<c:forEach items="${orders}"var="order"> 

        订单号:${order.order_no}

        <br />

        单价:${order.money}

   </c:forEach>

 

</body>

</html>


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