springboot连接MongoDB数据库并使用及其相关配置

1-整体目录如下：

 2-实体类：在实体类层配置表名

package com.example.test.entity;

import lombok.Data;
import org.springframework.data.mongodb.core.mapping.document;

import java.io.Serializable;

@Data
@document(collection = "test")  //表名
public class MongoTest  implements Serializable {
    private Integer id;
    private Integer age;
    private String name;

    public MongoTest() {

    }

    public Integer getId() {
        return id;
    }

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

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public MongoTest(Integer id, Integer age, String name) {
        this.id = id;
        this.age = age;
        this.name = name;
    }

    @Override
    public String toString() {
        return "MongoTest{" +
                "id=" + id +
                ", age=" + age +
                ", name='" + name + ''' +
                '}';
    }
}

3-配置controller层：

package com.example.test.controller;

import com.example.test.entity.MongoTest;
import com.example.test.service.MongoTestService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.List;

@Slf4j
@Validated
@RestController
@RequestMapping("Mongo")
public class MongoTestC {

    @Autowired
    private MongoTestService mongoTestService;

    @GetMapping(value = "/test1")
    public void saveTest(){
        List list = new ArrayList();
        MongoTest mgtest = new MongoTest();
        mgtest.setId(1111);
        mgtest.setAge(3223);
        mgtest.setName("111测试");
        list.add(mgtest);
        System.out.println(mgtest);
        mongoTestService.saveTest(mgtest);
    }
}

4-配置service层和ServiceImpl层：

package com.example.test.service;

import com.example.test.entity.MongoTest;
import org.springframework.stereotype.Service;

@Service
public interface MongoTestService {


    
    public void saveTest(MongoTest mgtest);
}

package com.example.test.service.serviceImpl;

import com.example.test.entity.MongoTest;
import com.example.test.service.MongoTestService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

@Slf4j
@Service("MongoTestService")
@Transactional(propagation = Propagation.SUPPORTS, readonly = true, rollbackFor = Exception.class)
public class MongoTestServiceImpl implements MongoTestService {

    @Autowired
    private MongoTemplate mongoTemplate;

    
    @Override
    public void saveTest(MongoTest mgtest) {
        mongoTemplate.save(mgtest);
    }
}

        5- 配置文件的配置：

配置方法1：

spring:
    data:
     mongodb:
        uri: mongodb://localhost:27017/test
#本地数据库配置直接输入地址和端口号就行，不用输入密码，我才用的是这种方式

配置方法2：输入相关的地址和用户名和密码

#地址
spring.data.mongodb.host=127.0.0.1
#端口
spring.data.mongodb.port=27017
#认证的库
spring.data.mongodb.authentication-database=admin
#操作的库
spring.data.mongodb.database=test
#账号
spring.data.mongodb.username=root
#密码  此时 @符号不替换也可以
spring.data.mongodb.password=123456

6-数据库设置：使用navicat设置；

7-测试连接：成功调通