封装统一的服务端响应类

水深无声 2022-06-02 02:39 99阅读 0赞

最近在做ssm的框架项目，里面封装的相应对象比较巧妙，记录下来

import org.codehaus.jackson.annotate.JsonIgnore;  
import org.codehaus.jackson.map.annotate.JsonSerialize;  
  
import java.io.Serializable;  
  
@JsonSerialize(include = JsonSerialize.Inclusion.NON\_NULL)  
//注解的作用 保证序列化json的时候，如果是null的对象，key也会消失  
public class ServerResponse<T> implements Serializable\{  
  
private int status;  
private String msg;  
private T data;  
  
private ServerResponse(int status)\{  
this.status = status;  
\}  
private ServerResponse(int status,T data)\{  
this.status = status;  
this.data = data;  
\}  
private ServerResponse(int status,T data,String msg)\{  
this.status = status;  
this.data = data;  
this.msg = msg;  
\}  
private ServerResponse(int status,String msg)\{  
this.status = status;  
this.msg = msg;  
\}  
@JsonIgnore  
//使之不在json序列化之内  
public boolean isSuccess()\{  
return this.status == ResponseCode.SUCCESS.getCode();  
\}  
public int getStatus()\{  
return status;  
\}  
public T getData()\{  
return data;  
\}  
public String getMsg()\{  
return msg;  
\}  
  
public static <T> ServerResponse<T> createBySuccess()\{  
return new ServerResponse<T>(ResponseCode.SUCCESS.getCode());  
\}  
public static <T> ServerResponse<T> createBySuccessMessage(String msg)\{  
return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg);  
\}  
public static <T> ServerResponse<T> createBySuccess(T data)\{  
return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),data);  
\}  
public static <T> ServerResponse<T> createBySuccess(String msg,T data)\{  
return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),data,msg);  
\}  
public static <T> ServerResponse<T> createByError()\{  
return new ServerResponse<T>(ResponseCode.ERROR.getCode(),ResponseCode.ERROR.getDesc());  
\}  
public static <T> ServerResponse<T> createByErrorMessage(String errorMessage)\{  
return new ServerResponse<T>(ResponseCode.ERROR.getCode(),errorMessage);  
\}  
public static <T> ServerResponse<T> createByErrorCodeMessage(int erroeCode,String errorMessage)\{  
return new ServerResponse<T>(erroeCode,errorMessage);  
\}  
\}  
另外还有一个枚举类来封装参数

public enum ResponseCode \{  
  
SUCCESS(0,"SUCCESS"),  
ERROR(1,"ERROR"),  
NEED\_LOGIN(10,"NEED\_LOGIN"),  
ILLEGAL\_ARGUMENT(2,"ILLEGAL\_ARGUMENT");  
  
private final int code;  
private final String desc;  
  
ResponseCode(int code,String desc)\{  
this.code = code;  
this.desc = desc;  
\}  
public int getCode()\{  
return code;  
\}  
public String getDesc()\{  
return desc;  
\}  
\}