Mongodb整合Spring 参照Spring官方文档中Spring-data-mongodb对Mongodb的操作，做了一个简单的示例，以防遗忘。 文档地址：http://docs.spring.io/spring-data/data-mongodb/docs/1.4.0.RELEASE/reference/html/ 相关软件版本： Maven-3.1.1 Mongodb-2.4.8Ec
Mongodb整合Spring
参照Spring官方文档中Spring-data-mongodb对Mongodb的操作，做了一个简单的示例，以防遗忘。
文档地址：http://docs.spring.io/spring-data/data-mongodb/docs/1.4.0.RELEASE/reference/html/
相关软件版本：
Maven-3.1.1 Mongodb-2.4.8
Eclipse
在Eclipse中创建一个Maven项目，pom.xml内容如下：
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>lee.forum</groupId>
<artifactId>Forum1.0.1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<!--========================================================== -->
<!--======================= 测试 ========================== -->
<!--========================================================== -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
<!--=========================================================== -->
<!--======================= Spring ========================== -->
<!--=========================================================== -->
<!-- Spring-data -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-mongodb</artifactId>
<version>1.3.4.RELEASE</version>
</dependency>
<!-- Spring core beans tx context expression test -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.2.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>3.2.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>3.2.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>3.2.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.2.8.RELEASE</version>
</dependency>
<!--=========================================================== -->
<!--======================== Mongodb ========================== -->
<!--=========================================================== -->
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>2.11.4</version>
</dependency>
<!--=========================================================== -->
<!--======================== Logs ========================== -->
<!--=========================================================== -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.1</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>spring-milestone</id>
<name>Spring Maven MILESTONE Repository</name>
<url>http://repo.spring.io/libs-milestone</url>
</repository>
</repositories>
</project>
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Spring配置文件安如下：
<?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"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation=
"http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-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/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
<context:annotation-config />
<context:component-scan base-package="lee.forum" />
<mongo:repositories base-package="lee.forum.core.dao" />
<!-- Default bean name is 'mongo' -->
<mongo:mongo host="localhost" port="27017"/>
<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
<constructor-arg ref="mongo"/>
<constructor-arg name="databaseName" value="forum"/>
</bean>
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forum为数据库名称，如果不存在则会自动创建。lee.forum.core.dao为dao的所在包名，这个例子的dao继承了MongoRepository，只需要按照规则写接口就行了。后面将会看到。
实体类：
package lee.forum.core.entity;
import java.util.Date;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Document
public class User {
@Id
private String userId;
private String userName;
private String email;
private String sex;
private Date birthday;
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
}
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Dao接口：
package lee.forum.core.dao;
import java.util.List;
import lee.forum.core.entity.User;
import org.springframework.data.mongodb.repository.MongoRepository;
public interface UserRepository extends MongoRepository<User, String> {
public List<User> findByEmail(String email);
public User findOneByUserId(String userId);
}
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这个接口不需要实现类，但是方法的名称必须按照Spring的规则来写。这里只写了查询，更详细的用法请参考文档。
find表示查询，by后面是查询的条件，email是User的属性，这样Spring才知道你要做什么。
测试类：
package lee.forum.test.dao;
import lee.forum.core.dao.UserRepository;
import lee.forum.core.entity.User;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:applicationContext-data.xml" })
public class RespositoryTest {
@Autowired
private UserRepository userRepository;
@Test
public void findAll() {
for (User user : userRepository.findAll()) {
System.out.println(user.getEmail());
}
}
@Test
public void findByEmail() {
for (User user : userRepository.findByEmail("libinsbox@137.com")) {
System.out.println(user.getUserName());
}
}
@Test
public void findById() {
System.out.println(userRepository.findOneByUserId("libinsbox@138.com")
.getUserName());
}
}
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