IDEA+gradle+spring+springMVC+hibernate+JPA+SpringData的web项目

1.build.gradle

group 'com.lyj'
version '1.0-SNAPSHOT'

apply plugin: 'java'
apply plugin: 'idea'
apply plugin: 'war'
sourceCompatibility = 1.8

repositories {

mavenLocal()
maven { url "http://maven.aliyun.com/nexus/content/groups/public/" }
maven { url "http://repo.maven.apache.org/maven2/"}
mavenCentral()
}

dependencies {
testCompile group: 'junit', name: 'junit', version: '4.12'
// servlet-api
compile group: 'javax.servlet', name: 'servlet-api', version: '2.5'

//spring相关
compile group: 'org.springframework', name: 'spring-webmvc', version: '4.3.3.RELEASE'
compile group: 'org.springframework', name: 'spring-orm', version: '4.3.3.RELEASE'
compile group: 'org.springframework', name: 'spring-aspects', version: '4.3.3.RELEASE'

//hibernate jpa相关
compile group: 'org.jboss.spec.javax.transaction', name: 'jboss-transaction-api_1.2_spec', version: '1.0.1.Final'
compile group: 'org.hibernate', name: 'hibernate-entitymanager', version: '5.2.2.Final'
//c3p0连接池
compile group: 'org.hibernate', name: 'hibernate-c3p0', version: '5.2.2.Final'
//ehcahe二级缓存
compile group: 'org.hibernate', name: 'hibernate-ehcache', version: '5.2.2.Final'
//mysql
compile group: 'mysql', name: 'mysql-connector-java', version: '5.1.39'
//springData
compile group: 'org.springframework.data', name: 'spring-data-jpa', version: '1.10.3.RELEASE'

}

2.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"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

<!--配置启动IOC容器的Listener-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>

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

<!-- 配置字符编码过滤器  必须配置在所有过滤器的最前面 -->
<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>

<!-- 配置看可以把POST请求转为PUT，DELETE请求的Filter -->
<filter>
<filter-name>HiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>HiddenHttpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置 OpenEntityManagerInViewFilter. 可以解决懒加载异常的问题 -->
<filter>
<filter-name>OpenEntityManagerInViewFilter</filter-name>
<filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class>
</filter>

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

<!--配置SpringMVC的DispatcherServlet-->
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>

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

</web-app>

3.springDispatcherServlet-servlet.xml配置springMVC解析器

<?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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> 
<!-- 配置自动扫描的包 -->
<context:component-scan base-package="com.lyj" 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>
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"></property>
<property name="suffix" value=".jsp"></property>
</bean>

<mvc:default-servlet-handler/>
<mvc:annotation-driven></mvc:annotation-driven>

<!-- <!– 配置 MultipartResolver 文件上传–>
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="UTF-8"></property>
<property name="maxUploadSize" value="1024000000"></property>
</bean>-->

</beans>

4.applicationContext.xml 配置spring容器

<?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" xmlns:tx="http://www.springframework.org/schema/tx"
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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"> 
<!-- 配置自动扫描的包 -->
<context:component-scan base-package="com.lyj">
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Controller" />
<context:exclude-filter type="annotation"
expression="org.springframework.web.bind.annotation.ControllerAdvice" />
</context:component-scan>

<!-- 配置数据源 -->
<context:property-placeholder location="classpath:db.properties" />
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="user" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="driverClass" value="${jdbc.driverClass}"></property>
<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>

<!-- 配置其他属性 -->
<property name="initialPoolSize" value="${jdbc.initPoolSize}"></property>
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"></property>
</bean>
<!-- 配置JPA部分 -->
<!-- 配置JPA的EntityManagerFactory -->
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"></bean>
</property>
<property name="packagesToScan" value="com.lyj"></property>
<property name="jpaProperties">
<props>
<prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>

<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory
</prop>
<prop key="hibernate.cache.use_query_cache">true</prop>
</props>
</property>
<!--使用二級緩存-->
<property name="sharedCacheMode" value="ENABLE_SELECTIVE"></property>
</bean>

<!-- 配置事务 -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"></property>
</bean>
<!-- 配置支持基于注解的事务 -->
<tx:annotation-driven transaction-manager="transactionManager" />

<!-- 配置SpringData部分 -->
<jpa:repositories base-package="com.lyj"
entity-manager-factory-ref="entityManagerFactory"></jpa:repositories>

</beans>

5.db.properties

jdbc.user=root
jdbc.password=
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.jdbcUrl=jdbc:mysql:///sssptest?useUnicode=true&characterEncoding=UTF-8

jdbc.initPoolSize=5
jdbc.maxPoolSize=20

6.测试

(1).Entity实体类

package com.lyj.entity;

import javax.persistence.*;

/**
* Created by LYJ on 2016/9/27.
*/

@Table
@Entity
public class User {
@GeneratedValue
@Id
private Integer id;
@Column(name="USER_NAME")
private String userName;

@Column(name="USER_PASSWORD")
private String password;

@Column(name="USER_THIRD_ID")
private String thirdId;

public String getThirdId() {
return thirdId;
}

public void setThirdId(String thirdId) {
this.thirdId = thirdId;
}

public Integer getId() {
return id;
}

public void setId(Integer id) {
this.id = id;
}

public String getUserName() {
return userName;
}

public void setUserName(String userName) {
this.userName = userName;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}
}

(2).repository JPA接口

package com.lyj.repository;

import com.lyj.entity.User;
import org.springframework.data.jpa.repository.JpaRepository;

/**
* Created by LYJ on 2016/9/27.
*/
public interface UserRepository extends JpaRepository<User,Integer> {
public User findByUserName(String userName);
}

(3).service 为了方便次数省略接口世界写类，实际开发中需要面向接口编程

package com.lyj.service;

import com.lyj.entity.User;
import com.lyj.repository.UserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
* Created by LYJ on 2016/9/27.
*/
@Service
public class UserService {
@Autowired
private UserRepository userRepository;
public User findByUserName(String userName){
return userRepository.findByUserName(userName);
}
}

(4).handler控制器

package com.lyj.handler;

import com.lyj.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

/**
* Created by LYJ on 2016/9/29.
*/
public class UserHandler {
@Autowired
private UserService userService;
//链接映射匹配
@RequestMapping("userLogin")
public String userLogin(@RequestParam("username") String userName,
@RequestParam("password") String password){
System.out.println(userName + "      --------- userName    --- UserHander.userLogin");
System.out.println(password + "      --------- password    --- UserHander.userLogin");
return "success";//跳转页面到success.jsp
}
}

7.备注（上述：省略了index.jsp和success.jsp） 附上项目结构图