7月10日 SSM 周二

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
    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_2_5.xsd">

    <servlet>
        <servlet-name>mvc</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>mvc</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>


  <display-name></display-name> 
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

    <context:component-scan base-package="com.controller"></context:component-scan>
    <mvc:annotation-driven/>
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/view/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

<?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>
    <typeAliases>
        <typeAlias type="com.dto.Dog" alias="Dog"/>
    </typeAliases>
    <environments default="管理员">
        <environment id="管理员">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/ssm01"/>
                <property name="username" value="root"/>
                <property name="password" value="root"/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        <package name="com.mapper"/>
    </mappers>
</configuration>

package com.controller;

import javax.servlet.http.HttpServletRequest;

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

import com.service.DogService;

@Controller
public class DogController {
    private DogService service = new DogService();

    @RequestMapping("list")
    public String list(HttpServletRequest request){
        request.setAttribute("dogList", service.findDogList());
        return "list";
    }
}

package com.dto;

public class Dog {
    private Integer id;
    private String name;
    private String sex;
    private Integer age;
    public Dog() {
        super();
        // TODO Auto-generated constructor stub
    }
    public Dog(Integer id, String name, String sex, Integer age) {
        super();
        this.id = id;
        this.name = name;
        this.sex = sex;
        this.age = age;
    }
    @Override
    public String toString() {
        return "Dog [id=" + id + ", name=" + name + ", sex=" + sex + ", age="
                + age + "]";
    }
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getSex() {
        return sex;
    }
    public void setSex(String sex) {
        this.sex = sex;
    }
    public Integer getAge() {
        return age;
    }
    public void setAge(Integer age) {
        this.age = age;
    }

}

package com.service;

import java.util.List;

import com.dto.Dog;
import com.mapper.DogMapper;
import com.util.MybatisUtils;

public class DogService {

    private DogMapper mapper = MybatisUtils.getSqlSession().getMapper(DogMapper.class);

    public List<Dog> findDogList() {
        // TODO Auto-generated method stub
        return mapper.findDogList();
    }

}

package com.mapper;

import java.util.List;

import com.dto.Dog;

public interface DogMapper {
    List<Dog> findDogList();
}

<?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.mapper.DogMapper">
    <select id="findDogList" resultType="dog">
        select * from t_dog
    </select>
</mapper>

package com.util;


import java.io.IOException;
import java.io.InputStream;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

public class MybatisUtils {

    private static SqlSessionFactory sqlSessionFactory = null;

    static{
        InputStream is = null;
        try {
            is = Resources.getResourceAsStream("mybatis-config.xml");
            SqlSessionFactoryBuilder sb = new SqlSessionFactoryBuilder();
            sqlSessionFactory = sb.build(is);
        } catch (IOException e) {
            e.printStackTrace();
        } finally{
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static SqlSession getSqlSession(){
        return sqlSessionFactory.openSession();
    }
}

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%
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>My JSP 'list.jsp' starting page</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">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>

  <body>
    <table>
        <tr>
            <th>编号</th>
            <th>姓名</th>
            <th>性别</th>
            <th>年龄</th>
        </tr>
        <c:forEach var="d" items="${dogList }">
            <tr>
                <th>${d.id }</th>
                <th>${d.name }</th>
                <th>${d.sex }</th>
                <th>${d.age }</th>
            </tr>
        </c:forEach>
    </table>
  </body>
</html>

The more you study, the more you will find yourself ignorant.
学，然后知不足。
投稿人的话：我们的一生都在学习，从出生到死亡，很多事情不是学会了就能一直会，所以我们需要不断学习，不断提高自己的能力。