Spring mongodb 之简单CRUD

官方文档参考:http://www.mkyong.com/mongodb/

用MyEclipse添加maven-Project工程，在这之前你可能需要配置你的m2eclipse

1.将maven配置成你自己安装的版本。



2.设置User Settings

当然也可以修改仓库默认目录，打maven安装目录conf/setting.xml

在<settings>节点里

添加：<localRepository>d:/myrepository</localRepository>即可



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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.test</groupId>
<artifactId>mongodb</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springmongodb</name>
<description>This is test case</description>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>

<repositories>
<repository>
<id>spring-milestone</id>
<name>Spring Maven MILESTONE Repository</name>
<url>http://maven.springframework.org/milestone</url>
</repository>
</repositories>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>

<!-- Spring framework -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>

<!-- mongodb java driver -->
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>2.5.2</version>
</dependency>

<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-mongodb</artifactId>
<version>1.0.0.M2</version>
</dependency>

<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2</version>
</dependency>

</dependencies>

</project>

写完pom.xml后，执行 项目-右键-run-maven install

下载完jar包，Test 成功后，就可以写代码了。

SpringMongoConfig.java

package entity;

import java.util.List;

public class User
{

private String id;
private String username;
private String password;
//文档中的集合
private List<String> position;

// 要有声明默认的构造方法，不然查询的时候会报错(无法实例化)
public User()
{

}

public String getId()
{
return id;
}

public void setId(String 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;
}

public List<String> getPosition()
{
return position;
}

public void setPosition(List<String> position)
{
this.position = position;
}

public User(String id, String username, String password,
List<String> position)
{
super();
this.id = id;
this.username = username;
this.password = password;
this.position = position;
}

public User(String username, String password, List<String> position)
{
super();
this.username = username;
this.password = password;
this.position = position;
}

}

测试类:

package run;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.data.document.mongodb.MongoOperations;
import org.springframework.data.document.mongodb.query.Criteria;
import org.springframework.data.document.mongodb.query.Query;
import org.springframework.data.document.mongodb.query.Update;

import com.config.SpringMongoConfig;

import entity.User;

public class App
{
private ApplicationContext ctx = new AnnotationConfigApplicationContext(
SpringMongoConfig.class);
private MongoOperations mongoOperations = (MongoOperations) ctx
.getBean("mongoTemplate");

@Test
public void testSave()
{
List<String> list = new ArrayList<String>();
for(int i =0; i < 100; i ++)
{
list.add("开发" + i);
list.add("经理" + i);
User user = new User("John" + i,"123" + i,list);
//第一个参数：要保存的表名，默认为实例名user同名的集合(表)
//如果表不存在会自动创建, 表名user为关键字不要使用
mongoOperations.save("userinfo", user);
list.clear();
}
}

@Test
public void testUpdate()
{
mongoOperations.updateFirst("userinfo",
new Query(Criteria.where("username").is("John0")),
Update.update("password", "newpassword"));
}

@Test
public void testDelete()
{
mongoOperations.remove("userinfo",new Query(Criteria.where("id").is("4ffe3486b41f8ed41269a729")),User.class);
}

@Test
public void testQuery()
{
//输出所有表名
Set<String> set = mongoOperations.getCollectionNames();
Iterator<String> it =  set.iterator();
while(it.hasNext())
{
System.out.println(it.next());
}
//user:要查询的表名
List<User> users = mongoOperations.getCollection("userinfo", User.class);
System.out.println(users.size());
for(User u : users)
{
System.out.println(u.getId());
}
}

}

源码下载