封装高可复用的服务端响应对象 --ServerResponse、ResponseCode

在平时的编码过程中，返回给前端的数据都会统一规范起来，用一个泛型来作为响应对象

ServerResponse类

@JsonSerialize(include =  JsonSerialize.Inclusion.NON_NULL)
//保证序列化json的时候,如果是null的对象,key也会消失
public class ServerResponse 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,String msg,T data){
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    private ServerResponse(int status,String msg){
        this.status = status;
        this.msg = msg;
    }
    @JsonIgnore
    //使之不在json序列化结果当中
    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  ServerResponse createBySuccess(){
        return new ServerResponse(ResponseCode.SUCCESS.getCode());
    }

    public static  ServerResponse createBySuccessMessage(String msg){
        return new ServerResponse(ResponseCode.SUCCESS.getCode(),msg);
    }

    public static  ServerResponse createBySuccess(T data){
        return new ServerResponse(ResponseCode.SUCCESS.getCode(),data);
    }

    public static  ServerResponse createBySuccess(String msg,T data){
        return new ServerResponse(ResponseCode.SUCCESS.getCode(),msg,data);
    }
    public static  ServerResponse createByError(){
        return new ServerResponse(ResponseCode.ERROR.getCode(),ResponseCode.ERROR.getDesc());
    }

    public static  ServerResponse createByErrorMessage(String errorMessage){
        return new ServerResponse(ResponseCode.ERROR.getCode(),errorMessage);
    }

    public static  ServerResponse createByErrorCodeMessage(int errorCode,String errorMessage){
        return new ServerResponse(errorCode,errorMessage);
    }
}

 

 

ResponseCode 类

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;
    }

}