SpringBooot整合mongoDB

1、导入jar包依赖

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

2、配置文件

这里配置的是无身份验证

mongodb://ip:port

#yml配置
data:
  mongodb:
    uri: mongodb://10.20.37.211:27017,10.20.37.212:27017,10.20.37.213:27017
    database: signal

这里是有身份验证

mongodb://username:password//ip:port

@Getter
@Setter
@ToString
public class Students {      
    private String id ;    
    private String name ;    
    private String clazz ;
}

@Service
public class TestMongoService {
    
    private MongoTemplate mongoTemplate ;    
    public TestMongoService(MongoTemplate mongoTemplate) {
        this.mongoTemplate = mongoTemplate;    
    }   

    public String findAll(){        
        List<Students> list = mongoTemplate.findAll(Students.class,"students"); 
        for (Students st : list){
            System.out.println(st);        
        }              
        return list.toString() ;    
}

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