对于后端向前端返回的数据可以统一封装到Result对象中
@Data
public class Result<T> implements Serializable {
private static final long serialVersionUID = 1L;
private int resultCode;
private String message;
private T data;
public Result() {
}
public Result(int resultCode, String message) {
this.resultCode = resultCode;
this.message = message;
}
}
ResultGenerator
public class ResultGenerator {
private static final String DEFAULT_SUCCESS_MESSAGE = "SUCCESS";
private static final String DEFAULT_FAIL_MESSAGE = "FAIL";
private static final int RESULT_CODE_SUCCESS = 200;
private static final int RESULT_CODE_SERVER_ERROR = 500;
public static Result genSuccessResult() {
Result result = new Result();
result.setResultCode(RESULT_CODE_SUCCESS);
result.setMessage(DEFAULT_SUCCESS_MESSAGE);
return result;
}
public static Result genSuccessResult(String message) {
Result result = new Result();
result.setResultCode(RESULT_CODE_SUCCESS);
result.setMessage(message);
return result;
}
public static Result genSuccessResult(Object data) {
Result result = new Result();
result.setResultCode(RESULT_CODE_SUCCESS);
result.setMessage(DEFAULT_SUCCESS_MESSAGE);
result.setData(data);
return result;
}
public static Result genFailResult(String message) {
Result result = new Result();
result.setResultCode(RESULT_CODE_SERVER_ERROR);
if (StringUtils.isEmpty(message)) {
result.setMessage(DEFAULT_FAIL_MESSAGE);
} else {
result.setMessage(message);
}
return result;
}
public static Result genErrorResult(int code, String message) {
Result result = new Result();
result.setResultCode(code);
result.setMessage(message);
return result;
}