英文:
Java spring boot, Lombok in POJO for response entity body
问题
我为API创建了一个默认错误响应体的对象。
因此，我创建了一个类，声明了构造函数和参数，并且我使用lombok添加了@Getter和@Setter。
@Getter
@Setter
public class ResponseError {
private Date timestamp;
private int status;
private int code;
private String message;
public ResponseError(Date timestamp, int status, int code, String message) {
this.timestamp = timestamp;
this.status = status;
this.code = code;
this.message = message;
}
}
当我在ResponseEntity的响应体中初始化对象时，构建时出现了以下错误：
No converter found for return value of type: class com.example.api.controller.response.ResponseError
如果我在我的类中手动创建getter和setter，就可以工作。
我以为lombok会为我做这个，难道不是吗？
英文:
I create an object for default error response body for API.
So I create my class, i declare constructor and params and I add @Getter and @Setter from lombok.
@Getter
@Setter
public class ResponseError {
private Date timestamp;
private int status;
private int code;
private String message;
public ResponseError(Date timestamp, int status, int code, String message) {
this.timestamp = timestamp;
this.status = status;
this.code = code;
this.message = message;
}
}
When i initiate the object in body response of ResponseEntity, i got this error on building :
No converter found for return value of type: class com.example.api.controller.response.ResponseError
And if i create manually getter and setter in my class, it is working.
I thought that Lombok do this for me, don't it ?
答案1
得分: 0
@Getter/@Setter 应该应用于一个字段。\
这应该是你的代码
public class ResponseError {
@Getter
@Setter
private Date timestamp;
@Getter
@Setter
private int status;
@Getter
@Setter
private int code;
@Getter
@Setter
private String message;
}
对于类级别，甚至更好的解决方案是使用 @Data 注解。
它为所有字段生成 getter 方法，一个有用的 .toString 方法，以及 .hashCode 和 .equals 实现，用于检查所有非瞬态字段。
它还将为所有非 final 字段生成 setter 方法，以及一个构造函数。
它相当于拥有所有这些注解：@Getter、@Setter、@RequiredArgsConstructor、@ToString、@EqualsAndHashCode
如果你想使用 @Data，你的代码将会是这样的。
@Data
public class ResponseError {
private Date timestamp;
private int status;
private int code;
private String message;
}
英文:
@Getter/@Setter should be applied to a field.
This should be your code
public class ResponseError {
@Getter
@Setter
private Date timestamp;
@Getter
@Setter
private int status;
@Getter
@Setter
private int code;
@Getter
@Setter
private String message;
}
Event better solution for class level, would be to use @Data annotation.
It generates getters for all fields, a useful .toString method, and .hashCode and .equals implementations that check all non-transient fields.
It will also generate setters for all non-final fields, as well as a constructor.
It is equivalent to having all annotations: @Getter @Setter @RequiredArgsConstructor @ToString @EqualsAndHashCode
If you wish to use @Data, your code would be.
@Data
public class ResponseError {
private Date timestamp;
private int status;
private int code;
private String message;
}
答案2
得分: 0
-
为Idea更新/安装Lombok插件
-
启用Idea的注解处理
-
启用插件的注解处理
英文:
-
Update/install Lombok plugin for Idea
-
Enable annotation process for Idea
-
Enable annotation process for plugin
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