解决:Required request body is missing

报错信息:
WARN DefaultHandlerExceptionResolver:384 - Failed to read HTTP message:
org.springframework.http.converter.HttpMessageNotReadableException:
Required request body is missing:
public com.zbz.model.User com.zbz.controller.UserController.saveUser(com.zbz.model.User)

本例场景:
使用Postman工具访问http://127.0.0.1:8080/spring-common/users/save
对应后台方法是如下代码

@Controller
@RequestMapping("/users")
public class UserController {@GetMapping("/save")public User saveUser(@RequestBody User user) {User user2 = user;System.out.println(user2.toString());return user2;}
}

解析:
在后台方法参数上添加@RequestBody时,将请求参数封装成User对象时,需要JSON(application/json)格式
解决:
在Postman中如下设置即可正常访问,便于调试。
实例对象

public class User implements Serializable {private static final long serialVersionUID = -6525908145032868837L;private Integer id;private String username;private String password;private String nickname;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getNickname() {return nickname;}public void setNickname(String nickname) {this.nickname = nickname;}public static long getSerialversionuid() {return serialVersionUID;}@Overridepublic String toString() {return "User [id=" + id + ",username=" + username + ",password=" + password + ",nickname=" + nickname + "]";}
}

以上,TKS.

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