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

編寫mongo實體

public class User implements Serializable{

    @Id
    private String id;

    private String name;

    private int age;

    public String getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    
}
 

測試demo

@RestController
@RequestMapping("api/user")
public class UserController {

    @Autowired
    private MongoTemplate mongoTemplate;

    @PostMapping
    public String save() {
        User user = new User();
        user.setId("1");
        user.setName("guan");
        user.setAge(21);
        mongoTemplate.save(user);
        return "success";
    }

    @GetMapping
    public String get() {
        return mongoTemplate.findAll(User.class).get(0).getName();
    }

    @PutMapping
    public String update() {
        User user = new User();
        user.setId("1");
        user.setName("hahaguan");
        user.setAge(22);
        mongoTemplate.save(user);
        return "success";
    }
}