MongoTemplate基本操作

正文

本文基于spring boot项目，快速构建项目请参考：https://www.cnblogs.com/lay2017/p/8836273.html

回到顶部
添加mongo依赖

org.springframework.boot
spring-boot-starter-data-mongodb

回到顶部
配置连接
有密码

spring.data.mongodb.uri=mongodb://name:password@localhost:27017/test
无密码

spring.data.mongodb.uri=mongodb://localhost:27017/test
回到顶部
代码示例
实体类

复制代码
package cn.lay.mongo.entity;

import org.springframework.data.mongodb.core.mapping.Document;

/**

• @author lay

• @date 2018/09/13 14:53
  */
  @Document(collection = “user_collection”)
  public class User {

  private Long id;

  private String name;

  private Integer age;

  public Long getId() {
  return id;
  }

  public void setId(Long id) {
  this.id = id;
  }

  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;
  }

  @Override
  public String toString() {
  return “User{” +
  “id=” + id +
  “, name=’” + name + ‘’’ +
  “, age=” + age +
  ‘}’;
  }
  }
  复制代码
  service类

复制代码
package cn.lay.mongo.service;

import cn.lay.mongo.entity.User;
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.stereotype.Service;

import java.util.List;

/**

• @author lay

• @date 2018/09/13 14:54
  */
  @Service
  public class UserService {

  @Autowired
  private MongoTemplate mt;

  public void saveUser(User user) {
  mt.save(user);
  }

  public void removeUser(User user) {
  Query query = new Query(Criteria.where(“id”).is(user.getId()));
  mt.remove(query, User.class);
  }

  public void updateUser(User user) {
  Query query = new Query(Criteria.where(“id”).is(user.getId()));
  Update update = new Update().set(“name”, “gary”);
  mt.updateMulti(query, update, User.class);
  }

  public User select(User user) {
  Query query = new Query(Criteria.where(“id”).is(user.getId()));
  User user1 = mt.findOne(query, User.class);
  return user1;
  }

  public List selectAll() {
  List users = mt.findAll(User.class);
  return users;
  }
  }
  复制代码
  controller

复制代码
package cn.lay.mongo.controller;

import cn.lay.mongo.entity.User;
import cn.lay.mongo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**

• @author lay

• @date 2018/09/13 14:45
  */
  @RestController
  @RequestMapping(“user”)
  public class UserController {

  @Autowired
  private UserService userService;

  @GetMapping(“get”)
  public User getUser() {
  User user = new User();
  user.setId(1L);
  return userService.select(user);
  }

  @GetMapping(“save”)
  public void saveUser() {
  User user = new User();
  user.setId(1L);
  user.setName(“marry”);
  user.setAge(24);
  userService.saveUser(user);
  }

  @GetMapping(value = “remove”)
  public void removeUser() {
  User user = new User();
  user.setId(1L);
  user.setName(“lay”);
  user.setAge(24);
  userService.removeUser(user);
  }

  @GetMapping(value = “update”)
  public void updateUser() {
  User user = new User();
  user.setId(1L);
  user.setName(“lay”);
  user.setAge(24);
  userService.updateUser(user);
  }

  @GetMapping(“list”)
  public List listUser() {
  return userService.selectAll();
  }

}
复制代码