spring boot集成mongodb的增删改查的示例代码

添加依赖

<dependency>   <groupId>org.springframework.boot</groupId>   <artifactId>spring-boot-starter-data-mongodb</artifactId></dependency>

properties配置

spring.data.mongodb.host=127.0.0.1spring.data.mongodb.port=27017spring.data.mongodb.database=enterprise_dc_dbspring.data.mongodb.username=enterprise_dc_dbaspring.data.mongodb.password=123456 server.port=8081

创建实体类

@Document为mongodb集合名

package com.example.springbootmongodb.domian; import org.springframework.data.mongodb.core.mapping.Document; @Document(collection = "mydb")public class Users {  private String userId;  private String name;  private Integer age;   public String getUserId() {    return userId;  }   public void setUserId(String userId) {    this.userId = userId;  }   public String getName() {    return name;  }   public void setName(String name) {    this.name = name;  }   public Integer getAge() {    return age;  }   public void setAge(Integer age) {    this.age = age;  }}

controller

package com.example.springbootmongodb.controller;public class ResultObject {   private int code;   private String desc;   private Object data;   public ResultObject() {   }   public ResultObject(int code) {    this.code = code;  }   public ResultObject(int code, Object data) {    this.code = code;    this.data = data;  }   public Object getData() {    return data;  }   public void setData(Object data) {    this.data = data;  }   public int getCode() {    return code;  }   public void setCode(int code) {    this.code = code;  }   public String getDesc() {    return desc;  }   public void setDesc(String desc) {    this.desc = desc;  }}
package com.example.springbootmongodb.controller; import com.example.springbootmongodb.domian.Users;import org.springframework.beans.factory.annotation.Autowired;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.web.bind.annotation.*; import java.util.List; @RequestMapping("/mongo")@RestControllerpublic class UserController {   @Autowired  private MongoTemplate mongoTemplate;   @RequestMapping(value = "/hello",method = RequestMethod.GET)  public String hello(){    return "hello";  }   /**   * 新增   */  @ResponseBody  @RequestMapping(value = "/insert", method = RequestMethod.GET)  public ResultObject insert(){    Users user = new Users();    user.setUserId("1002");    user.setName("eric");    user.setAge(18);    mongoTemplate.insert(user);  return new ResultObject(200);  }   /**删除   *   * @return   */  @ResponseBody  @RequestMapping("/delete")  public ResultObject delete(){    Query query = Query.query(Criteria.where("userId").is("1001"));    mongoTemplate.remove(query,"mydb");    return new ResultObject(200);  }   /**   * 删除   * @return   */  @ResponseBody  @RequestMapping("/update")  public ResultObject update(){    Query query = Query.query(Criteria.where("userId").is("1002"));    Update update = new Update();    update.set("name","name1");    update.set("age",18);    mongoTemplate.updateFirst(query,update,"mydb");    return new ResultObject(200);  }   /**   * 查询   * @return   */  @ResponseBody  @RequestMapping("/query")  public ResultObject query(){    Query query = Query.query(Criteria.where("userId").is("1001"));    List<Users> list = mongoTemplate.find(query,Users.class);    return new ResultObject(200,list);  }}

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spring boot集成mongodb的增删改查的示例代码

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