使用spring data jpa简化dao层编写

...
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</exclusion>
</exclusions>
</dependency>
...

<?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:context="http://www.springframework.org/schema/context"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:tx="http://www.springframework.org/schema/tx"
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/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd"> <!-- 使注解生效 -->
<context:annotation-config />

<!-- 配置数据源 -->
<!-- p:driverClassName="com.microsoft.sqlserver.jdbc.SQLServerDriver" -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close"
p:driverClassName="com.p6spy.engine.spy.P6SpyDriver"
p:url="jdbc:sqlserver://127.0.0.1:1433;DatabaseName=test2"
p:username="sa"
p:password="csc123456"/>

<!-- jpa实体工厂配置 -->
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
p:dataSource-ref="dataSource"
p:sharedCacheMode="ENABLE_SELECTIVE"
p:validationMode="NONE"
p:packagesToScan="com.ldy.entities">
<property name="jpaPropertyMap">
<props>
<prop key="javax.persistence.schema-generation.database.action">none</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"
p:databasePlatform="org.hibernate.dialect.SQLServer2008Dialect" />
</property>
</bean>

<jpa:repositories base-package="com.ldy.repositories" transaction-manager-ref="transactionManager"
entity-manager-factory-ref="entityManagerFactory"/>

<!-- Jpa 事务管理器  -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"
p:entityManagerFactory-ref="entityManagerFactory"/>

<!-- 开启注解事务 -->
<tx:annotation-driven />
</beans>

<pre name="code" class="java">package com.ldy.entities;

import java.io.Serializable;
import java.util.Date;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

import org.hibernate.annotations.GenericGenerator;

@Entity
@Table(name="lsuser")
public class User implements Serializable {
private String userID;
private String roleID;
private String userName;
private String password;
private String email;
private String ceilPhone;
private Date createTime;
private String createUser;
private Date modifyTime;
private String modifyUser;
@Id
//@GeneratedValue(strategy = GenerationType.IDENTITY)
@GeneratedValue(generator="custom_uuid")
@GenericGenerator(name="custom_uuid",strategy="uuid2")
public String getUserID() {
return userID;
}
public void setUserID(String userID) {
this.userID = userID;
}
public String getRoleID() {
return roleID;
}
public void setRoleID(String roleID) {
this.roleID = roleID;
}
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;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getCeilPhone() {
return ceilPhone;
}
public void setCeilPhone(String ceilPhone) {
this.ceilPhone = ceilPhone;
}
public Date getCreateTime() {
return createTime;
}
public void setCreateTime(Date createTime) {
this.createTime = createTime;
}
public String getCreateUser() {
return createUser;
}
public void setCreateUser(String createUser) {
this.createUser = createUser;
}
public Date getModifyTime() {
return modifyTime;
}
public void setModifyTime(Date modifyTime) {
this.modifyTime = modifyTime;
}
public String getModifyUser() {
return modifyUser;
}
public void setModifyUser(String modifyUser) {
this.modifyUser = modifyUser;
}

}

package com.ldy.repositories;

import org.springframework.data.repository.CrudRepository;

import com.ldy.entities.User;
public interface UserRepositories extends CrudRepository<User,String>{

}

package com.ldy.springdata.runtime;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;

import javax.inject.Inject;

import org.apache.commons.dbcp.BasicDataSource;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.context.ApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.ldy.entities.User;
import com.ldy.repositories.UserRepositories;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("/config/applicationContext.xml")
public class DataSourceTest {
@Inject
private ApplicationContext applicationContext;
@Inject UserRepositories userRepo;
@Test
public void testUserRepositoies(){
User user = new User();
user.setCeilPhone("12222323421");
user.setEmail("sldjfksl@sdk.com");
System.out.println("userRepo.save(user):"+userRepo.save(user));
}
}