spring boot配置统一异常处理
基于@ControllerAdvice的统一异常处理
>.这里ServerException是我自定义的异常,和普通Exception分开处理
>.这里的RequestResult是我自定义的请求返回结果对象
ExceptionResolver.class
import com.dawn.blogspot.common.exception.ServerException; import com.dawn.blogspot.common.response.RequestResult; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.ResponseBody; /** * @author TangZedong * @apiNote 统一异常处理器 * @since 2018/5/21 11:55 */ @ControllerAdvice public class ExceptionResolver {
// spring boot 2.0.4版本内部集成了log4j,所以不需要额外的配置log4j private final static Logger LOGGER = LoggerFactory.getLogger(ExceptionResolver.class); /** * 处理自定义异常{@link ServerException},并返回错误信息 */ @ResponseBody @ExceptionHandler(value = ServerException.class) public RequestResult ServerException(ServerException e) { return RequestResult.getFailedInstance(e.getCode(), e.getMessage() == null ? "系统异常" : e.getMessage()); } /** * 处理自定义异常{@link ServerException},并返回错误信息 */ @ResponseBody @ExceptionHandler(value = Exception.class) public RequestResult ServerException() { return RequestResult.getFailedInstance("系统异常"); } }
ServerException.class
/** * @author TangZedong * @apiNote 服务异常 * @since 2018/9/4 15:27 */ public class ServerException extends RuntimeException { // 错误代码 private short code = -1; public short getCode() { return code; } public ServerException(String message) { super(message); } public ServerException(short code, String message) { super(message); this.code = code; } public ServerException(short code, String message, Throwable t) { super(message, t); this.code = code; } }
RequestResult.class
/** * @author TangZedong * @apiNote 请求结果 * @since 2018/9/4 16:20 */ public class RequestResult<T> { private static final short SUCCESS_CODE = 0; private static final short FAILED_CODE = -1; private static final boolean SUCCESS_STATUS = true; private static final boolean FAILED_STATUS = false; private static final String NULL_MESSAGE = null; private static final String NULL_DATA = null; private short code; private String message; private boolean success; private T data; // 构造方法 public RequestResult(short code, String message, boolean success, T data) { this.code = code; this.message = message; this.success = success; this.data = data; } // get方法 public short getCode() { return code; } public String getMessage() { return message; } public T getData() { return data; } public boolean isSuccess() { return success; } // 获取实例 public static <T> RequestResult getFailedInstance(short code, String message, T data) { return new RequestResult(code, message, FAILED_STATUS, data); } public static <T> RequestResult getFailedInstance(short code, String message) { return new RequestResult(code, message, FAILED_STATUS, NULL_DATA); } public static <T> RequestResult getFailedInstance(String message) { return new RequestResult(FAILED_CODE, message, FAILED_STATUS, NULL_DATA); } public static <T> RequestResult getSuccessInstance(short code, String message, T data) { return new RequestResult(code, message, SUCCESS_STATUS, data); } public static <T> RequestResult getSuccessInstance(short code, T data) { return new RequestResult(code, NULL_MESSAGE, SUCCESS_STATUS, data); } public static <T> RequestResult getSuccessInstance(T data) { return new RequestResult(SUCCESS_CODE, NULL_MESSAGE, SUCCESS_STATUS, data); } }
我不作恶
但有权拒绝为善
我不赞同
但是我捍卫你不为善的权力