使用Morphia框架操作mongodb

1.  mac 下 安装mongodb

sudo brew update

sudo brew install mongodb

sudo brew services mongodb start

2.  创建映射类

package mongodbDemo;

import org.mongodb.morphia.annotations.Entity;
import org.mongodb.morphia.annotations.Id;
 

//利用morphia的annotation进行注解
@Entity
public class User {
    @Id
    private long id;
    
    private String name;
    private boolean sex;
    private int age;
    private String address;
    
    public User() {
    }
    public User(long id, String name, boolean sex, int age, String address) {
        super();
        this.id = id;
        this.name = name;
        this.sex = sex;
        this.age = age;
        this.address = address;
    }
    //getter、setter
    
    @Override
    public String toString() {
        return this.id + "#" + this.name + "#" + this.age + "#" + this.sex + "#" + this.address;
    }
}

3.  测试代码

package mongodbDemo;

import org.mongodb.morphia.Datastore;
import org.mongodb.morphia.Morphia;

import com.mongodb.MongoClient;

public class demo {
    
    public static void main(String[] args) {
    	
    	Morphia morphia = new Morphia();

    	// 告诉Morphia在哪里找到你的类
    	// 可以为不同的包或者类进行多次的调用
    	morphia.mapPackage("mongodbDemo");

    	//创建datastore，并连接到指定数据库
    	//datastore有两个参数，第一个用来连接到MongoDB，第二个是数据库的名字。
    	final Datastore datastore = morphia.createDatastore(new MongoClient("localhost"), "morphia_example");
    	datastore.ensureIndexes();
    	
    	final User user = new User(0,"zhansan",false,20,"home");
    	datastore.save(user);
    	
    	
	}
	
}

运行后，查看数据库

4.  源码下载  

http://download.csdn.net/detail/mtour/9595523