公共统一处理类-标准返回处理

实现效果

//成功
{
    "code": 0 //业务状态码
    "data":{
    	"name": "alan"
	},
	"msg": "ok"
}
//失败
{
    "code": 50001 //业务状态码
    "data": null,
	"msg": "用户返回异常"
}

公共统一处理类

1. BaseResponse

@Data
public class BaseResponse<T> implements Serializable {

    private static final long serialVersionUID = -4765301762535502096L;

    private int code;

    private T data;

    private String message;

    private String description;

    public BaseResponse(int code, T data, String message, String description) {
        this.code = code;
        this.data = data;
        this.message = message;
        this.description = description;
    }

    public BaseResponse(int code, T data, String message) {
        this(code, data, message,"");
    }
    public BaseResponse(int code, T data) {
        this(code, data, "","");
    }
    public BaseResponse(ErrorCode errorCode){

        this(errorCode.getCode(), null, errorCode.getMessage(), errorCode.getDescription());
    }
}

2. ResultUtils

public class ResultUtils {
    /**
     * 成功
     * @param data 返回数据
     * @param <T> 泛型
     * @return BaseResponse
     */
    public static <T> BaseResponse<T> success(T data) {
        return new BaseResponse<>(0, data, "ok");
    }

    /**
     * 失败
     * @param errorCode 错误码
     * @return BaseResponse
     */
    public static BaseResponse error(ErrorCode errorCode) {
        return new BaseResponse<>(errorCode);
    }


    /**
     * 失败
     * @param errorCode 错误码
     * @return BaseResponse
     */
    public static BaseResponse error(ErrorCode errorCode, String message, String description) {
        return new BaseResponse(errorCode.getCode(), null, message, description);
    }

    /**
     * 失败
     * @param errorCode 错误码
     * @return BaseResponse
     */
    public static BaseResponse error(ErrorCode errorCode, String description) {
        return new BaseResponse(errorCode.getCode(), errorCode.getMessage(), description);
    }


    /**
     * 失败
     * @param code 错误码
     * @return BaseResponse
     */
    public static BaseResponse error(int code, String message, String description) {
        return new BaseResponse(code, null, message, description);
    }

}

3. ErrorCode

public enum ErrorCode {
    SUCCESS(0, "ok", ""),
    PARAM_ERROR(40000, "请求参数错误", ""),
    PARAM_NULL(40001, "请求参数为空", ""),
    NOT_LOGIN(40100, "未登录", ""),
    NO_AUTH(40101, "权限不足", ""),
    SYSTEM_ERROR(50000, "系统内部异常", ""),;
    /**
     * 错误码
     */
    private final int code;
    /**
     * 错误信息
     */
    private final String message;
    /**
     * 错误描述
     */
    private final String description;

    ErrorCode(int code, String message, String description) {
        this.code = code;
        this.message = message;
        this.description = description;
    }

    public int getCode() {
        return code;
    }

    public String getMessage() {
        return message;
    }

    public String getDescription() {
        return description;
    }
}

4. BusinessException

public class BusinessException extends RuntimeException{

    private static final long serialVersionUID = 92797686650012857L;

    private final int code;
    private final String description;

    public BusinessException(String message, int code, String description){
        super(message);
        this.code = code;
        this.description = description;
    }

    public BusinessException(ErrorCode errorCode){
        super(errorCode.getMessage());
        this.code = errorCode.getCode();
        this.description = errorCode.getDescription();
    }

    public BusinessException(ErrorCode errorCode,String description){
        super(errorCode.getMessage());
        this.code = errorCode.getCode();
        this.description = description;
    }

    public int getCode() {
        return code;
    }

    public String getDescription() {
        return description;
    }
}

5. GloableExceptionHandler

@Slf4j
@RestControllerAdvice
public class GloableExceptionHandler {

    @ExceptionHandler(BusinessException.class)
    public BaseResponse busiessExceptionHandler(BusinessException e){
        log.info("业务异常{}",e.getMessage());
        return ResultUtils.error(e.getCode(),e.getMessage(), e.getDescription());
    }

    @ExceptionHandler(RuntimeException.class)
    public BaseResponse runtimeExceptinHandler(RuntimeException e){
        log.info("运行时异常{}",e.getMessage());
        return ResultUtils.error(ErrorCode.SYSTEM_ERROR,e.getMessage(),"");
    }
}