转自http://www.cnblogs.com/007sx/p/5658194.html

首先看一下项目结构:

所用到的jar(pom.xml):

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ajie.wechat</groupId>
<artifactId>ajie-wechat</artifactId>
<packaging>jar</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>ajie-wechat</name>
<url>http://maven.apache.org</url> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.1.3.RELEASE</version>
</dependency> <dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.3.11.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.11.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-ehcache</artifactId>
<version>4.3.11.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.35</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.12</version>
</dependency>
<dependency>
<groupId>com.jolbox</groupId>
<artifactId>bonecp</artifactId>
<version>0.8.0.RELEASE</version>
</dependency>
<dependency>
<groupId>com.jolbox</groupId>
<artifactId>bonecp-spring</artifactId>
<version>0.8.0.RELEASE</version>
</dependency>
<dependency>
<groupId>com.jolbox</groupId>
<artifactId>bonecp-provider</artifactId>
<version>0.8.0-alpha1</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.7</version>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib-nodep</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.1</version>
</dependency>
<dependency>
<groupId>ant</groupId>
<artifactId>ant</artifactId>
<version>1.6.5</version>
</dependency>
<dependency>
<groupId>org.apache.avro</groupId>
<artifactId>avro</artifactId>
<version>1.7.7</version>
</dependency>
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.9.2</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>net.sf.ezmorph</groupId>
<artifactId>ezmorph</artifactId>
<version>1.0.6</version>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.23</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>18.0</version>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.20.0-GA</version>
</dependency>
<dependency>
<groupId>org.jboss.logging</groupId>
<artifactId>jboss-logging</artifactId>
<version>3.3.0.Final</version>
</dependency>
<!-- jackson -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.5.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.5.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.5.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-jpa -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.7.1.RELEASE</version>
</dependency> </dependencies>
<build>
<plugins>
<!-- 编码和编译 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>utf8</encoding>
</configuration>
</plugin>
</plugins>
<finalName>ajie-wechat</finalName>
</build>
</project>

spring配置文件(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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:cache="http://www.springframework.org/schema/cache"
xmlns:jaxws="http://cxf.apache.org/jaxws"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-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/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/cache
http://www.springframework.org/schema/cache/spring-cache-3.1.xsd
http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"
default-lazy-init="true"> <!-- 启动组件扫描,排除@Controller组件,该组件由SpringMVC配置文件扫描 -->
<context:component-scan base-package="com.ajie.wechat">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan> <!-- 属性文件位置 -->
<context:property-placeholder location="classpath:jdbc.properties" /> <!-- 数据源 -->
<bean id="dataSource" class="com.jolbox.bonecp.BoneCPDataSource"
destroy-method="close">
<!-- 数据库驱动 -->
<property name="driverClass" value="${jdbc.driverClassName}" />
<!-- 相应驱动的jdbcUrl-->
<property name="jdbcUrl" value="${jdbc.url}" />
<!-- 数据库的用户名 -->
<property name="username" value="${jdbc.username}" />
<!-- 数据库的密码 -->
<property name="password" value="${jdbc.password}" />
</bean> <!-- JPA实体管理器工厂 -->
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter" ref="hibernateJpaVendorAdapter" />
<!-- 加入定制化包路径 -->
<property name="packagesToScan" value="com.ajie.wechat.model" /> <property name="jpaProperties">
<props>
<prop key="hibernate.current_session_context_class">thread</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop><!-- validate/update/create -->
<prop key="hibernate.show_sql">false</prop>
<prop key="hibernate.format_sql">false</prop> <!-- 建表的命名规则 -->
<prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop> </props>
</property>
</bean> <!-- 设置JPA实现厂商的特定属性 -->
<bean id="hibernateJpaVendorAdapter"
class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="${hibernate.dialect}"/>
</bean> <!-- Jpa 事务配置 -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean> <!-- Spring Data Jpa配置 -->
<jpa:repositories base-package="com.ajie.wechat" transaction-manager-ref="transactionManager" entity-manager-factory-ref="entityManagerFactory"/> <!-- 使用annotation定义事务 -->
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />
</beans>

springMVC配置文件(spring-mvc.xml):

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd" > <!-- 启用SpringMVC的注解功能,它会自动注册HandlerMapping、HandlerAdapter、ExceptionResolver的相关实例 -->
<mvc:annotation-driven />
<!-- SpringMVC的扫描范围 -->
<context:component-scan base-package="com.ajie.wechat.controller" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
<context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
</context:component-scan> <!-- 默认访问跳转到登录页面,即定义无Controller的path<->view直接映射
<mvc:view-controller path="/" view-name="redirect:/login"/>
--> <!-- 静态文件访问 -->
<!-- <mvc:resources mapping="/resources/**" location="/resources/" /> --> <!-- 用于返回json格式 -->
<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/x-www-form-urlencoded;charset=UTF-8</value>
</list>
</property>
</bean> <!-- 完成请求和注解POJO的映射 -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="mappingJacksonHttpMessageConverter" />
</list>
</property>
</bean> <!-- 配置SpringMVC的视图解析器 -->
<!-- 其viewClass属性的默认值就是org.springframework.web.servlet.view.JstlView -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> -->
<property name="prefix" value="/" />
<property name="suffix" value=".html" />
</bean> <!-- 总错误处理-->
<!-- <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="defaultErrorView">
<value>/base/error</value>
</property>
<property name="defaultStatusCode">
<value>500</value>
</property>
<property name="warnLogCategory">
<value>org.springframework.web.servlet.handler.SimpleMappingExceptionResolver</value>
</property>
</bean> --> <!-- 静态资源加载 -->
<mvc:resources location="/css/" mapping="/css/**" /> <mvc:resources location="/images/" mapping="/images/**" />
<mvc:resources location="/ATTACHMENT/" mapping="/ATTACHMENT/**" /> </beans>

连接数据库配置文件(jdbc.properties):

jdbc.driverClassName=com.mysql.jdbc.Driver

jdbc.url=jdbc\:mysql\://localhost\:3306/ajie?useUnicode\=true&characterEncoding\=UTF-8

jdbc.username=root

jdbc.password=Jovaunn1

hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect

BoneCP.idleConnectionTestPeriod=60

BoneCP.idleMaxAge=60

BoneCP.maxConnectionsPerPartition=5

BoneCP.minConnectionsPerPartition=1

BoneCP.partitionCount=3

BoneCP.acquireIncrement=2  

BoneCP.statementsCacheSize=0 

BoneCP.releaseHelperThreads=3

web.xml

<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<display-name>Archetype Created Web Application</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:applicationContext*.xml</param-value>
</context-param> <!-- 防止发生java.beans.Introspector内存泄露,应将它配置在ContextLoaderListener的前面 -->
<!-- 详细描述见http://blog.csdn.net/jadyer/article/details/11991457 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener> <!-- 实例化Spring容器 -->
<!-- 应用启动时,该监听器被执行,它会读取Spring相关配置文件,其默认会到WEB-INF中查找applicationContext.xml -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener> <!-- 配置编码过滤器 -->
<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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping> <!-- 配置spring管理OpenEntityManagerInViewFilter-->
<!-- OpenEntityManagerInViewFilter会让session一直到view层调用结束后才关闭
Spring针对Hibernate的非JPA实现用的是OpenSessionInViewFilter,原理与这个大同小异
-->
<filter>
<filter-name>hibernateFilter</filter-name>
<filter-class>
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>hibernateFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping> <!-- 用默认的servlet来处理资源 -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.jpg</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.png</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>*.woff</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.ttf</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.map</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>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping> <!-- SpringMVC核心分发器 -->
<servlet>
<servlet-name>dispatcherServlet</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>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping> <welcome-file-list>
<welcome-file>/index.html</welcome-file>
</welcome-file-list>
</web-app>

下面是程序测试代码(接口使用RESTful风格):

1.model实体 User.java

package com.ajie.wechat.model;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table; @Entity
@Table(name = "user")
public class User implements Serializable { private static final long serialVersionUID = 7419229779731522702L; @Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "userId")
private Long id; @Column(length = 50)
private String account;
public Long getId() {
return id;
} public void setId(Long id) {
this.id = id;
} public String getAccount() {
return account;
} public void setAccount(String account) {
this.account = account;
}
public static long getSerialversionuid() {
return serialVersionUID;
}
}

2.Dao

package com.ajie.wechat.dao;

import org.springframework.data.jpa.repository.JpaRepository;

import com.ajie.wechat.model.User;

public interface UserDao extends JpaRepository<User, Long> {

}

3.Service

package com.ajie.wechat.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional; import com.ajie.wechat.dao.UserDao;
import com.ajie.wechat.model.User; @Service
@Transactional
public class UserService {
@Autowired
private UserDao userDao; public String add(User user){
userDao.save(user);
return "添加成功!";
} public String addUser(String account){
User user = new User();
user.setAccount(account);
userDao.save(user);
return "添加成功!";
} public User getOneUser(Long id){
return userDao.findOne(id);
}
}

4.controller层使用@RestController(等同于@Controller + @ResponseBody)

package com.ajie.wechat.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController; import com.ajie.wechat.model.User;
import com.ajie.wechat.service.UserService; @RestController
@RequestMapping(value = "/frame")
public class UserController {
@Autowired
private UserService userService; @RequestMapping(value = "/saveUser",
method = RequestMethod.POST,
produces = MediaType.APPLICATION_JSON_VALUE + ";charset=UTF-8")
public String saveUser(@RequestBody User user){
return userService.add(user);
} @RequestMapping(value = "/saveUser/{account}",
method = RequestMethod.GET,
produces = MediaType.APPLICATION_JSON_VALUE + ";charset=UTF-8")
public String add(@PathVariable String account){
return userService.addUser(account);
} @RequestMapping(value = "/user/{id}",
method = RequestMethod.GET,
produces = MediaType.APPLICATION_JSON_VALUE + ";charset=UTF-8")
public User add(@PathVariable Long id){
return userService.getOneUser(id);
}
}

一些需要注意的地方:

spring的配置:

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