MongoDB統合spring-data-jpa,spring 4.x

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Spring Dataはrepository抽象的な方法を提供しており、データアクセス層のマンネリを大幅に減らすことができます.基本的なDAOはすべて実現して、find、findAll、findById、save、delete、udateなどの方法、その上コードのロジックはほぼ一致します.Spring Dataは、インターフェースによりSpring Dataを定義し、Proxyを通じて自動的に具体的な実現を提供する簡略化方法を提供する.
私達はspring-dataとmongodbを統合して、直接にmongo Templateを使って煩雑な添削を行わないようにします.
次は私が書いたデモです.
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</groupId>
	<artifactId>wfu</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>wfu Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<dependencies>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>4.0.6.RELEASE</version>
			<scope>runtime</scope>
			<!-- Spring4    JCL，  SLF4J -->
			<exclusions>
				<exclusion>
					<groupId>commons-logging</groupId>
					<artifactId>commons-logging</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>4.0.6.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>1.6.2</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-jdk14</artifactId>
			<version>1.6.2</version>
		</dependency>

		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>1.2.14</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>4.0.6.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
			<version>4.0.6.RELEASE</version>
		</dependency>


		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3.1</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>4.0.6.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>4.0.6.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>4.0.6.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>4.0.6.RELEASE</version>
		</dependency>
			<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>4.0.6.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-mongodb</artifactId>
			<version>1.5.4.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-jpa</artifactId>
			<version>1.8.0.RELEASE</version>
		</dependency>
		
		<dependency>
			<groupId>org.freemarker</groupId>
			<artifactId>freemarker</artifactId>
			<version>2.3.20</version>
		</dependency>

		<dependency>
			<groupId>org.codehaus.jackson</groupId>
			<artifactId>jackson-core-lgpl</artifactId>
			<version>1.9.13</version>
		</dependency>
		<dependency>
			<groupId>org.codehaus.jackson</groupId>
			<artifactId>jackson-mapper-lgpl</artifactId>
			<version>1.9.13</version>
		</dependency>
	
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>1.5.8</version>
		</dependency>
	</dependencies>
	<build>
		<finalName>wfu</finalName>
	</build>
</project>

spring.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:jee="http://www.springframework.org/schema/jee"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:util="http://www.springframework.org/schema/util"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mongo="http://www.springframework.org/schema/data/mongo"
	xmlns:jpa="http://www.springframework.org/schema/data/jpa"
	xsi:schemaLocation="http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.1.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
		http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.5.xsd
		http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.8.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
		http://www.springframework.org/schema/schema/util http://www.springframework.org/schema/schema/util/spring-util-4.1.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

    <context:annotation-config />
	<!--          -->
	<context:component-scan base-package="com.wfuedu"></context:component-scan>

    <!--     Bean  mongo    ,      username password     -->
    <mongo:db-factory host="localhost" port="27017" dbname="db_mongo" />

    <!-- mongo      -->
    <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
        <constructor-arg name="mongoDbFactory" ref="mongoDbFactory"/>
    </bean> 

    <!--   annotation     -->
    <tx:annotation-driven transaction-manager="transactionManager" />

	<!-- 5.    SpringData -->
	<mongo:repositories base-package="com.wfuedu.dao"></mongo:repositories>
</beans>

オブジェクトを永続化

package com.wfuedu.domain;

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;

@Document(collection="customer")
public class Customer {

    @Id
    private String id;

    private String firstName;
    private String lastName;

    public Customer() {}

    public Customer(String firstName, String lastName) {
        this.firstName = firstName;
        this.lastName = lastName;
    }


    @Override
	public String toString() {
		return "Customer [id=" + id + ", firstName=" + firstName
				+ ", lastName=" + lastName + "]";
	}

	public String getId() {
        return id;
    }

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

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

}

サービス

package com.wfuedu.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.wfuedu.dao.CustomerDao;
import com.wfuedu.domain.Customer;

@Service
public class CustomerService {
	@Autowired
	private CustomerDao customerDao;
	public Customer findByFirstName(String firstName){
		return customerDao.findByFirstName(firstName);
	}
}

DAO

package com.wfuedu.dao;

import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

import com.wfuedu.domain.Customer;

public interface CustomerDao extends CrudRepository<Customer, String>{

	Customer findByFirstName(String firstName);

}

テストクラス

package test;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.wfuedu.domain.Customer;
import com.wfuedu.service.CustomerService;

/**
 * Spring-data mongodb
 * @author GIE
 *
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:spring.xml")
public class SpringDataJPATest {
    @Autowired private CustomerService customerService;
    
    /**
     *   japRepository     
     */
    @Test
    public void testQueryBySpringData(){
    	Customer customer = customerService.findByFirstName("jpa");
    	System.out.println(customer);
    }
}

ソースコード:クリックしてダウンロードします.

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