MongoDB学习笔记之 第4章 MongoDB整合Spring
MongoDB学习笔记之 第4章 MongoDB整合Spring
黎明你好 发表于5个月前
MongoDB学习笔记之 第4章 MongoDB整合Spring
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MongoDB学习笔记之 第1章 MongoDB的安装

MongoDB学习笔记之 第2章 MongoDB的增删改查

MongoDB学习笔记之 第3章 MongoDB的Java驱动

MongoDB学习笔记之 第4章 MongoDB整合Spring

 

 第4章 MongoDB整合Spring

(黎明你好原创作品,转载请注明)

4.1 创建maven项目

4.1.1 repositories

创建maven项目,其中repositories使用spring的maven库:

 

<repositories>
	<repository>
		<id>central</id>
		<name>Maven Central</name>
		<url>http://repo1.maven.org/maven2/</url>
	</repository>
	<repository>
		<id>spring-release</id>
		<name>Spring Maven Release Repository</name>
		<url>http://repo.springsource.org/libs-release</url>
	</repository>
	<repository>
		<id>atlassian-m2-repository</id>
		<url>https://m2proxy.atlassian.com/repository/public</url>
	</repository>
</repositories>

 

4.1.2 Dependencies

使用到的jar包:

 

<dependencies>
	<dependency>
		<groupId>javax.servlet</groupId>
		<artifactId>servlet-api</artifactId>
		<version>2.5</version>
		<type>jar</type>
		<scope>provided</scope>
	</dependency>
	<dependency>
		<groupId>org.slf4j</groupId>
		<artifactId>slf4j-api</artifactId>
		<version>1.6.1</version>
		<type>jar</type>
		<scope>compile</scope>
	</dependency>
	<dependency>
		<groupId>org.slf4j</groupId>
		<artifactId>slf4j-log4j12</artifactId>
		<version>1.7.5</version>
		<type>jar</type>
		<scope>runtime</scope>
	</dependency>
	<dependency>
		<groupId>org.mongodb</groupId>
		<artifactId>mongo-java-driver</artifactId>
		<version>2.10.1</version>
		<type>jar</type>
		<scope>compile</scope>
	</dependency>
	<dependency>
		<groupId>org.springframework.data</groupId>
		<artifactId>spring-data-mongodb</artifactId>
		<version>1.2.1.RELEASE</version>
		<type>jar</type>
		<scope>compile</scope>
	</dependency>
	<dependency>
		<groupId>org.springframework.data</groupId>
		<artifactId>spring-data-mongodb-cross-store</artifactId>
		<version>1.2.1.RELEASE</version>
		<type>jar</type>
		<scope>compile</scope>
	</dependency>
	<dependency>
		<groupId>org.springframework.data</groupId>
		<artifactId>spring-data-mongodb-log4j</artifactId>
		<version>1.2.1.RELEASE</version>
		<type>jar</type>
		<scope>compile</scope>
	</dependency>
</dependencies>

 

 

4.2 添加spring配置文件

spring的配置文件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:context="http://www.springframework.org/schema/context"
	xmlns:mongo="http://www.springframework.org/schema/data/mongo"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/data/mongo     
        http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd 
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd">

	<context:component-scan base-package="liming.mongodb.example" />

	<mongo:mongo host="127.0.0.1" port="27017" />

	<!-- mongo的工厂,通过它来取得mongo实例,dbname为mongodb的数据库名,没有的话会自动创建 -->
	<mongo:db-factory dbname="student" mongo-ref="mongo" />

	<!-- mongodb的主要操作对象,所有对mongodb的增删改查的操作都是通过它完成 -->
	<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
		<constructor-arg name="mongoDbFactory" ref="mongoDbFactory" />
	</bean>

	<!-- 映射转换器,扫描back-package目录下的文件,根据注释,把它们作为mongodb的一个collection的映射 -->
	<mongo:mapping-converter base-package="climing.mongodb.example.data.model" />

	<!-- mongodb bean的仓库目录,会自动扫描扩展了MongoRepository接口的接口进行注入 -->
	<mongo:repositories base-package="liming.mongodb.example.data.impl" />

	<context:annotation-config />

</beans>

 

 

 

4.3 增删改查

Userl实现的增删改查:

4.3.1UserEntity

 

package liming.mongodb.example.data.model;

import java.util.Date;

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

@Document(collection = "user")
public class UserEntity {

	@Id
	private String id;
	private NameEntity name;
	private int age;
	private int works;
	private Date birth;
	private String password;
	private String regionName;
	private String[] special;

	public String getId() {
		return id;
	}

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

	public NameEntity getName() {
		return name;
	}

	public void setName(NameEntity name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public int getWorks() {
		return works;
	}

	public void setWorks(int works) {
		this.works = works;
	}

	public Date getBirth() {
		return birth;
	}

	public void setBirth(Date birth) {
		this.birth = birth;
	}

	public String getPassword() {
		return password;
	}

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

	public String getRegionName() {
		return regionName;
	}

	public void setRegionName(String regionName) {
		this.regionName = regionName;
	}

	public String[] getSpecial() {
		return special;
	}

	public void setSpecial(String[] special) {
		this.special = special;
	}

}

 

 

4.3.2 NameEntity

 

package liming.mongodb.example.data.model;

public class NameEntity {

	private String username;

	private String nickname;

	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public String getNickname() {
		return nickname;
	}

	public void setNickname(String nickname) {
		this.nickname = nickname;
	}

}

 

 

4.3.3 UserDao

 

package liming.mongodb.example.data;

import java.util.List;

import liming.mongodb.example.data.model.UserEntity;

import org.springframework.transaction.annotation.Transactional;

@Transactional
public interface UserDao {

	public abstract void _test();

	public abstract void createCollection();

	public abstract List<UserEntity> findList(int skip, int limit);

	public abstract List<UserEntity> findListByAge(int age);

	public abstract UserEntity findOne(String id);

	public abstract UserEntity findOneByUsername(String username);

	public abstract void insert(UserEntity entity);

	public abstract void update(UserEntity entity);

}

 

 

4.3.4 UserDaoImpl

 

package liming.mongodb.example.data.impl;

import java.util.List;
import java.util.Set;

import liming.mongodb.example.data.UserDao;
import liming.mongodb.example.data.model.UserEntity;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.data.domain.Sort.Direction;
import org.springframework.data.domain.Sort.Order;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;
import org.springframework.stereotype.Repository;

import com.mongodb.DB;

@Repository
public class UserDaoImpl implements UserDao {

	public static final Logger logger = LoggerFactory.getLogger(UserDaoImpl.class);

	@Autowired
	private MongoTemplate mongoTemplate;

	@Override
	public void _test() {
		Set<String> colls = this.mongoTemplate.getCollectionNames();
		for (String coll : colls) {
			logger.info("CollectionName=" + coll);
		}
		DB db = this.mongoTemplate.getDb();
		logger.info("db=" + db.toString());
	}

	@Override
	public void createCollection() {
		if (!this.mongoTemplate.collectionExists(UserEntity.class)) {
			this.mongoTemplate.createCollection(UserEntity.class);
		}
	}

	@Override
	public List<UserEntity> findList(int skip, int limit) {
		Query query = new Query();
		query.with(new Sort(new Order(Direction.ASC, "_id")));
		query.skip(skip).limit(limit);
		return this.mongoTemplate.find(query, UserEntity.class);
	}

	@Override
	public List<UserEntity> findListByAge(int age) {
		Query query = new Query();
		query.addCriteria(new Criteria("age").is(age));
		return this.mongoTemplate.find(query, UserEntity.class);
	}

	@Override
	public UserEntity findOne(String id) {
		Query query = new Query();
		query.addCriteria(new Criteria("_id").is(id));
		return this.mongoTemplate.findOne(query, UserEntity.class);
	}

	@Override
	public UserEntity findOneByUsername(String username) {
		Query query = new Query();
		query.addCriteria(new Criteria("name.username").is(username));
		return this.mongoTemplate.findOne(query, UserEntity.class);
	}

	@Override
	public void insert(UserEntity entity) {
		this.mongoTemplate.insert(entity);

	}

	@Override
	public void update(UserEntity entity) {
		Query query = new Query();
		query.addCriteria(new Criteria("_id").is(entity.getId()));
		Update update = new Update();
		update.set("age", entity.getAge());
		update.set("password", entity.getPassword());
		update.set("regionName", entity.getRegionName());
		update.set("special", entity.getSpecial());
		update.set("works", entity.getWorks());
		update.set("name", entity.getName());
		this.mongoTemplate.updateFirst(query, update, UserEntity.class);

	}

}

 

 

4.3.5 测试代码

 

package liming.mongodb.example;

import java.util.Arrays;
import java.util.Date;
import java.util.List;

import liming.mongodb.example.data.UserDao;
import liming.mongodb.example.data.impl.UserDaoImpl;
import liming.mongodb.example.data.model.UserEntity;

import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class ApplicationSpring {

	public static void main(String[] args) {

		System.out.println("Bootstrapping HelloMongo");

		ConfigurableApplicationContext context = null;
		context = new ClassPathXmlApplicationContext("applicationContext.xml");

		UserDao userDao = context.getBean(UserDaoImpl.class);
	        userDao._test();
		UserEntity entity1 = new UserEntity();
		entity1.setId("5");
		entity1.setAge(1);
		entity1.setBirth(new Date());
		entity1.setPassword("asdfasdf");
		entity1.setRegionName("北京");
		entity1.setWorks(1);
		userDao.insert(entity1);
		userDao.update(entity1);
		userDao.createCollection();
	
		List<UserEntity> list = userDao.findList(0, 10);
		for (UserEntity e : list) {
			System.out.println("all - id=" + e.getId() + ", age=" + e.getAge() + ", password=" + e.getPassword() + ", regionName=" + e.getRegionName() + ", special=" + Arrays.toString(e.getSpecial())
					+ ", name=" + e.getName().getUsername() + "-" + e.getName().getNickname() + ", birth=" + e.getBirth());
		}

		list = userDao.findListByAge(1);
		for (UserEntity e : list) {
			System.out.println("age=1 - id=" + e.getId() + ", age=" + e.getAge() + ", password=" + e.getPassword() + ", regionName=" + e.getRegionName() + ", special="
					+ Arrays.toString(e.getSpecial()) + ", name=" + e.getName().getUsername() + "-" + e.getName().getNickname() + ", birth=" + e.getBirth());
		}

		UserEntity e = userDao.findOne("1");
		System.out.println("id=1 - id=" + e.getId() + ", age=" + e.getAge() + ", password=" + e.getPassword() + ", regionName=" + e.getRegionName() + ", special=" + Arrays.toString(e.getSpecial())
				+ ", name=" + e.getName().getUsername() + "-" + e.getName().getNickname() + ", birth=" + e.getBirth());

		e = userDao.findOneByUsername("limingnihao");
		System.out.println("username=limingnihao - id=" + e.getId() + ", age=" + e.getAge() + ", password=" + e.getPassword() + ", regionName=" + e.getRegionName() + ", special="
				+ Arrays.toString(e.getSpecial()) + ", name=" + e.getName().getUsername() + "-" + e.getName().getNickname() + ", birth=" + e.getBirth());

		
		System.out.println("DONE!");
	}

}

 

 

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