超简单不学你会后悔的神仙级springboot整合MongoDB

第一步：构建Maven项目引入相关依赖 

    4.0.0

    com.southwind
    springbootMongDB
    1.0-SNAPSHOT

    
        spring-boot-starter-parent
        org.springframework.boot
        2.2.2.RELEASE
    

    
        
            org.springframework.boot
            spring-boot-starter-data-mongodb
        
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.projectlombok
            lombok
        
    

    
        8
        8
    

第二步：根据数据库构建实体类

package com.southwind.entity;

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

@Data
@document("my_student")
public class Student {

    @Id
    private String id;
    @Field(value = "student_age")
    private Integer age;
    @Field(value = "student_name")
    private String name;
}

第三步：定义接口

package com.southwind.repository;

import com.southwind.entity.Student;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface StudentRepository extends MongoRepository {

}

第四步：配置文件application.yml

spring:
  data:
    mongodb:
      database: my_test  //mongodb数据库名称
      host: localhost   //Ip
      port: 27017       //端口好难

 DB数据库

启动类

package com.southwind;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class,args);
    }
}

测试