基于全注解的Spring3.1 mvc、myBatis3.1、Mysql的轻量级项目

基于REST风格的Spring3 MVC资源映射编程模型，编写的Code真的很优雅。那是相当的惊喜，编程之美。

MyEclipse项目清单

SVN淘宝蝌蚪：

http://code.taobao.org/p/mySpring3myBatis3/src/

http://code.taobao.org/p/mySpring3myBatis3/src/
清单1. web.xml

<?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"> 
<display-name>mySpring3 and myBatis3 Project</display-name>

<!-- 配置文件位置，默认为/WEB-INF/applicationContext.xml -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>

<!-- 字符集过滤器 -->
<filter>
<filter-name>characterEncodingFilter</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>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- 上下文Spring监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- servlet控制跳转 -->
<servlet>
<servlet-name>spring3</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:context-dispatcher.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>spring3</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<!-- 激活静态资源的默认配置,解决Rest风格兼容 -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.css</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>*.gif</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.jpg</url-pattern>
</servlet-mapping>

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

清单2. applicationContext.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:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
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/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-2.5.xsd" default-init-method="init">

<!-- 引入jdbc配置文件 -->
<context:property-placeholder location="classpath:jdbc.properties" />
<!--创建jdbc数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>

<!-- 创建SqlSessionFactory，同时指定数据源 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis.cfg.xml"></property>
<property name="dataSource" ref="dataSource" />
</bean>

<!-- 可通过注解控制事务 -->
<tx:annotation-driven transaction-manager="transactionManager"/>

<!-- 配置事务的传播特性 -->
<!--
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="create*" propagation="REQUIRED" />
<tx:method name="modify*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />

<tx:method name="*" read-only="true" />
</tx:attributes>
</tx:advice>
-->
<!-- 配置事务的切入点 -->
<!--
<aop:config>
<aop:pointcut id="targetMethod" expression="execution(* com.matol.service.*.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="targetMethod" />
</aop:config>
-->

<!-- Mapper接口所在包名，Spring会自动查找其下的Mapper -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.matol.mapper" />
</bean>
<!-- 负责注册JSR-250 的注释生效 @Resource MapperScannerConfigurer配置会自动启用mapper注解,可省略当前配置
<bean class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor"/>
-->

</beans>

清单3. context-dispatcher.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans default-lazy-init="true"
xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
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-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<!-- 通过注解，把URL映射到Controller上，该标签默认注册DefaultAnnotationHandlerMapping和AnnotationMethodHandlerAdapter -->
<mvc:annotation-driven />
<!--  annotation默认的方法映射适配器  mvc:annotation-driven注册后可以省略当前配置
<bean id="handlerMapping" class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
<bean id="handlerAdapter" class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
-->

<!-- 探测注解的包，包括子集， 在JUnit测试的时候需要 --> <!-- 自动扫描bean，把作了注解的类转换为bean -->
<context:component-scan base-package="com.matol" />
<!-- 加载组装所以配置文件 context:component-scan注册后可以省略当前配置
<context:annotation-config/>
-->

<!-- 视图解析器 -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 使用JSP页面进行输出 -->
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<!-- 指定了表示层的前缀 --> <!-- 这个配置是配置JSP页面的位置，按照你自己的配置来配 -->
<property name="prefix" value="/" />
<!-- 指定了表示层的后缀 -->
<property name="suffix" value=".jsp"></property>
</bean>

<!-- 处理文件上传处理 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver" p:defaultEncoding="UTF-8" />
</beans>

清单4. jdbc.properties

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/matolDB
username=root
password=root

清单5. mybatis.cfg.xml

<?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 alias="Student" type="com.matol.entity.User" />
</typeAliases>

<mappers>
<mapper resource="com/matol/mapper/UserMapper.xml" />
</mappers>
</configuration>

清单6. matolDB.sql

/*
Navicat MySQL Data Transfer

Source Server         : localhost
Source Server Version : 50141
Source Host           : localhost:3306
Source Database       : matoldb

Target Server Type    : MYSQL
Target Server Version : 50141
File Encoding         : 65001

Date: 2013-01-23 16:47:52
*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for `sys_user`
-- ----------------------------
DROP TABLE IF EXISTS `sys_user`;
CREATE TABLE `sys_user` (
`id` int(11) unsigned zerofill NOT NULL AUTO_INCREMENT,
`name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
`pass` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
`age` int(11) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=0 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

清单7. User.java

package com.matol.entity;

import java.io.Serializable;

import org.springframework.stereotype.Repository;

/**
*
* @author matol
* @date 2013-01-23 16:38
*/
@Repository(value = "user")
public class User implements Serializable {

private Integer id;
private String name;
private String pass;
private Integer age;

public User(){}

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 getPass() {
return pass;
}
public void setPass(String pass) {
this.pass = pass;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}

}

清单7. UserMapper.java

package com.matol.mapper;

import java.util.List;

import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import com.matol.entity.User;

/**
*
* @author matol
* @date 2013-01-23 16:38
*/
@Repository(value = "userMapper")
@Transactional
public interface UserMapper {
Integer create(User user);
Integer delete(Integer id);
Integer modify(User user);

User findById(Integer id);
User findByUser(User user);
List<User> findAll();
List<User> findAll(User user);

Integer count();
}

清单8. 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.matol.mapper.UserMapper">
<!-- 定义数据库字段与实体对象的映射关系 -->
<resultMap type="com.matol.entity.User" id="resultUser">
<id property="id" column="id"/>
<result property="name" column="name"/>
<result property="pass" column="pass"/>
<result property="age" column="age"/>
</resultMap>
<!-- 定义参数模型 -->
<parameterMap type="com.matol.entity.User" id="paramUser">
<parameter property="id"/>
<parameter property="name"/>
<parameter property="pass"/>
<parameter property="age"/>
</parameterMap>

<!-- 定义要操纵的SQL语句 -->
<insert id="create" parameterType="com.matol.entity.User" >
INSERT INTO sys_user(name,pass,age)
VALUES(#{name},#{pass},#{age})
</insert>

<delete id="delete" parameterType="Integer" >
DELETE FROM sys_user
WHERE id=#{value}
</delete>

<update id="modify" parameterType="com.matol.entity.User" >
UPDATE sys_user
<set>
<if test="name != null">name=#{name},</if>
<if test="pass != null">pass=#{pass},</if>
<if test="age != null">age=#{age},</if>
</set>
WHERE id=#{id}
</update>

<select id="findById" parameterType="Integer" resultMap="resultUser">
SELECT * FROM sys_user
WHERE id=#{value}
</select>
<select id="findAll" resultType="list" resultMap="resultUser">
SELECT * FROM sys_user
</select>

<select id="count" resultType="Integer">
SELECT count(*) FROM sys_user
</select>
</mapper>

清单9. UserService.java

package com.matol.service;

import java.util.List;

import org.springframework.stereotype.Repository;

import com.matol.entity.User;

/**
*
* @author matol
* @date 2013-01-23 16:38
*/
@Repository(value = "userService")
public interface UserService {

Integer create(User user);
Integer delete(Integer id);
Integer modify(User user);

User findById(Integer id);
User findByUser(User user);
List<User> findAll();
List<User> findAll(User user);

Integer count();
}

清单10. UserServiceImpl.java

package com.matol.service.impl;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Repository;

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

/**
*
* @author matol
* @date 2013-01-23 16:38
*/
@Repository(value = "userServiceImpl")
public class UserServiceImpl implements UserService{
@Resource(name = "userMapper")
private UserMapper userMapper;

public Integer count() {
return userMapper.count();
}

public Integer create(User user) {
return userMapper.create(user);
}

public Integer delete(Integer id) {
return userMapper.delete(id);
}

public List<User> findAll() {
return userMapper.findAll();
}

public List<User> findAll(User user) {
return userMapper.findAll(user);
}

public User findById(Integer id) {
return userMapper.findById(id);
}

public User findByUser(User user) {
return userMapper.findByUser(user);
}

public Integer modify(User user) {
return userMapper.modify(user);
}

}

清单11. UserController.java

package com.matol.controller;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.matol.entity.User;
import com.matol.service.UserService;

/**
*
* @author matol
* @date 2013-01-23 16:38
*/
@Controller
@RequestMapping(value = "/user")
public class UserController {

@Resource(name = "userServiceImpl")
private UserService userService;

/**
* @author matol
* @date 2013-01-23 16:38
* @return
*/
@RequestMapping(value = "**/list")
public ModelAndView getAllUser(HttpServletRequest request,HttpServletResponse response) throws Exception {
Map<String, Object> map = new HashMap<String, Object>();

List<User> result = new ArrayList<User>();
result = userService.findAll();

map.put("result", result);
return new ModelAndView("/user/list", map);
}
/**
* @author matol
* @date 2013-01-23 16:38
* @return
*/
@RequestMapping(value = "**/list/{id}")
public ModelAndView getTheUser(@PathVariable("id") int id){
Map<String, Object> map = new HashMap<String, Object>();

List<User> result = new ArrayList<User>();
result.add(userService.findById(id));
map.put("result", result);

return new ModelAndView("/user/list", map);
}

/**
* @author matol
* @date 2013-01-23 16:38
* @return
*/
@RequestMapping(value = "**/toAdd")
public ModelAndView toAddUser(){
return new ModelAndView("/user/adds");
}
/**
* @author matol
* @date 2013-01-23 16:38
* @return
*/
@RequestMapping(value = "**/doAdd")
public String addUser(User user){
userService.create(user);

Map<String, Object> map = new HashMap<String, Object>();

List<User> result = new ArrayList<User>();
result = userService.findAll();

map.put("result", result);
return "redirect:list";
}

/**
* @author matol
* @date 2013-01-23 16:38
* @return
*/
@RequestMapping(value = "**/delete/{id}")
public String deleteTheUser(@PathVariable("id") int id){
Map<String, Object> map = new HashMap<String, Object>();

userService.delete(id);

List<User> result = new ArrayList<User>();
result = userService.findAll();
map.put("result", result);

return "redirect:/user/list";
}

}

清单12. index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
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>
<title>My JSP 'index.jsp' starting page</title>
</head>

<body>
<h3>Spring3.1、MyBatis3.1、MySQL 整合.</h3>
<a href="user/list">查询所有</a><br/>
<a href="user/toAdd">添加记录</a><br/>
</body>
</html>

清单13. list.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 XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Insert title here</title>
</head>
<body>
<c:forEach items="${result}" var="item">
<a href="list/${item.id }">${item.name }</a> pass: ${item.pass } --- age: ${item.age } <a href="delete/${item.id }">delete</a><hr/>
</c:forEach>

<a href="toAdd">添加记录</a><br/>
</body>
</html>

清单14. adds.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 XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Insert title here</title>
</head>
<body>
<br/>
<form action="doAdd" method="post">
name:<input type="text" name="name">
pass:<input type="text" name="pass">
age:<input type="text" name="age">
<input type="submit" value="submit">
</form>
<br/>
<a href="list">查询所有</a><br/>
</body>
</html>

lib的jar清单



由于只是一个相对简单的使用范例，所以没有非常标准的注入DAO，以及DAO接口，只是通过Mapper代替过程。不过，道理都是一样，无非就是新添加一层注入而已。