SpringBoot博客系统之后端返回数据的封装

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;
    }