MongDB之各种修改操作

接口IMongDaoUpdate:

package com.net.test.mongdb.dao;

import com.net.test.mongdb.entity.User;

public interface IMongDaoUpdate {
    
    public void updateUser(User user);
    
    public void updateUserHobby(User user);
    
    public void updateUserHobbyDiffer(User user);
      
    public void updateUserUserPsg(User user);
    
    public void deleteUserUserPsg(String name,String field);
}

实现类:

package com.net.test.mongdb.dao.imp;

import javax.annotation.Resource;

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.net.test.mongdb.dao.IMongDaoUpdate;
import com.net.test.mongdb.entity.User;

/**
 * @author ***
 * @Time:2017年8月4日 下午1:50:16
 * @version 1.0  
 * Function: TODO
 */
@Repository
public class MongDaoUpdateImp implements IMongDaoUpdate {
    
    @Resource
    protected MongoTemplate mongoTemplate;
    
    /**
     * @description 单条更新user信息
     * @param user
     */
    @Override
    public void updateUser(User user) 
    {
        Query query = Query.query(Criteria.where("name").is(user.getName()));
        Update up = new Update();
        up.set("sex", user.getSex()).inc("age", user.getAge()).set("hobby", user.getHobby());
        
        mongoTemplate.updateFirst(query, up, User.class);
    }
    
    /**
     * @description 单独对user信息的某个特定数组字段继续追加数据,不管是否重复
     * @param user
     */
    @Override
    public void updateUserHobby(User user) 
    {
        Query query = Query.query(Criteria.where("name").is(user.getName()));
        Update up = new Update();
        String[] str = new String[user.getHobby().size()];
        for(int i = 0 ; i < user.getHobby().size();i++)
        {
            str[i] = user.getHobby().get(i).toString();
        }
        up.pushAll("hobby", str);
        mongoTemplate.updateFirst(query, up, User.class);
    }

    /**
     * @description 一次性追加多个不重复的数组元素
     * @param user
     */
     @Override
    public void updateUserHobbyDiffer(User user) 
     {
        Query query = Query.query(Criteria.where("name").is(user.getName()));
        
        Update up = new Update();
        Object[] str = new Object[user.getHobby().size()];
        for(int i = 0 ; i < user.getHobby().size();i++)
        {
            str[i] = user.getHobby().get(i).toString();
        }
        up.addToSet("hobby").each(str);
        mongoTemplate.updateFirst(query, up, User.class);
    }
     
     /**
      * @description 更新内置对象
      * @param user
      */
    @Override
    public void updateUserUserPsg(User user) 
    {
        Query query = Query.query(Criteria.where("name").is(user.getName()));
        Update update = new Update();
        update.set("psg.address", user.getPsg().getAddress());
        update.set("psg.phone", user.getPsg().getPhone());
         update.set("psg.county", "江苏");
        
        mongoTemplate.updateFirst(query, update, User.class);
    }
    
    /**
     * @description 删除内置对象的某个字段
     * @param name
     * @param field
     */
    @Override
    public void deleteUserUserPsg(String name, String field) 
    {
        Query query = Query.query(Criteria.where("name").is(name));
        Update update = new Update();
        update.unset("psg.county");
        mongoTemplate.updateFirst(query, update, User.class);
        
    }
     
}
原文地址:https://www.cnblogs.com/chen1-kerr/p/7326771.html