9.一套简单的全局错误处理框架,工作中直接拿来可用
作者:互联网
1.先定位错误接口
public interface BaseErrorInfoInterface { String getResultCode(); String getResultMsg(); }
2.定义错误枚举
public enum CommonEnum implements BaseErrorInfoInterface { // 数据操作错误定义 SUCCESS("200", "成功!"), BODY_NOT_MATCH("400","请求的数据格式不符!"), NULL_POINT("407","出现了空指针异常!"), SIGNATURE_NOT_MATCH("401","请求的数字签名不匹配!"), NOT_FOUND("404", "未找到该资源!"), INTERNAL_SERVER_ERROR("500", "服务器内部错误!"), SERVER_BUSY("503","服务器正忙,请稍后再试!"); /** 错误码 */ private String resultCode; /** 错误描述 */ private String resultMsg; CommonEnum(String resultCode, String resultMsg) { this.resultCode = resultCode; this.resultMsg = resultMsg; } @Override public String getResultCode() { return resultCode; } @Override public String getResultMsg() { return resultMsg; } }
3.定义我们的返回值
public class ResultBody { /** * 响应代码 */ private String code; /** * 响应消息 */ private String message; /** * 响应结果 */ private Object result; public ResultBody() { } public ResultBody(BaseErrorInfoInterface errorInfo) { this.code = errorInfo.getResultCode(); this.message = errorInfo.getResultMsg(); } public String getCode() { return code; } public void setCode(String code) { this.code = code; } public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } public Object getResult() { return result; } public void setResult(Object result) { this.result = result; } /** * 成功 * * @return */ public static ResultBody success() { return success(null); } /** * 成功 * @param data * @return */ public static ResultBody success(Object data) { ResultBody rb = new ResultBody(); rb.setCode(CommonEnum.SUCCESS.getResultCode()); rb.setMessage(CommonEnum.SUCCESS.getResultMsg()); rb.setResult(data); return rb; } /** * 失败 */ public static ResultBody error(BaseErrorInfoInterface errorInfo) { ResultBody rb = new ResultBody(); rb.setCode(errorInfo.getResultCode()); rb.setMessage(errorInfo.getResultMsg()); rb.setResult(null); return rb; } /** * 失败 */ public static ResultBody error(String code, String message) { ResultBody rb = new ResultBody(); rb.setCode(code); rb.setMessage(message); rb.setResult(null); return rb; } /** * 失败 */ public static ResultBody error( String message) { ResultBody rb = new ResultBody(); rb.setCode("-1"); rb.setMessage(message); rb.setResult(null); return rb; } @Override public String toString() { return JSONObject.toJSONString(this); } }
4.定义业务异常
public class BizException extends RuntimeException{ private static final long serialVersionUID = 1L; /** * 错误码 */ protected String errorCode; /** * 错误信息 */ protected String errorMsg; public BizException() { super(); } public BizException(BaseErrorInfoInterface errorInfoInterface) { super(errorInfoInterface.getResultCode()); this.errorCode = errorInfoInterface.getResultCode(); this.errorMsg = errorInfoInterface.getResultMsg(); } public BizException(BaseErrorInfoInterface errorInfoInterface, Throwable cause) { super(errorInfoInterface.getResultCode(), cause); this.errorCode = errorInfoInterface.getResultCode(); this.errorMsg = errorInfoInterface.getResultMsg(); } public BizException(String errorMsg) { super(errorMsg); this.errorMsg = errorMsg; } public BizException(String errorCode, String errorMsg) { super(errorCode); this.errorCode = errorCode; this.errorMsg = errorMsg; } public BizException(String errorCode, String errorMsg, Throwable cause) { super(errorCode, cause); this.errorCode = errorCode; this.errorMsg = errorMsg; } public String getErrorCode() { return errorCode; } public void setErrorCode(String errorCode) { this.errorCode = errorCode; } public String getErrorMsg() { return errorMsg; } public void setErrorMsg(String errorMsg) { this.errorMsg = errorMsg; } public String getMessage() { return errorMsg; } @Override public Throwable fillInStackTrace() { return this; } }
5.定义springboot全局错误处理
@ControllerAdvice @Slf4j public class MyExceptionHandler { /** * 处理自定义的业务异常 * @param req * @param e * @return */ @ExceptionHandler(value = BizException.class) @ResponseBody public ResultBody bizExceptionHandler(HttpServletRequest req, BizException e){ log.error("发生业务异常!原因是:{}",e.getErrorMsg()); return ResultBody.error(e.getErrorCode(),e.getErrorMsg()); } /** * 处理空指针的异常 * @param req * @param e * @return */ @ExceptionHandler(value =NullPointerException.class) @ResponseBody public ResultBody exceptionHandler(HttpServletRequest req, NullPointerException e){ log.error("发生空指针异常!原因是:",e); return ResultBody.error(CommonEnum.NULL_POINT); } /** * 处理其他异常 * @param req * @param e * @return */ @ExceptionHandler(value =Exception.class) @ResponseBody public ResultBody exceptionHandler(HttpServletRequest req, Exception e){ log.error("未知异常!原因是:",e); return ResultBody.error(CommonEnum.INTERNAL_SERVER_ERROR); } }
6.常用的业务请求,基本涵盖各种场景
@RestController public class BusinessController { @GetMapping("/success") public ResultBody success(){ return ResultBody.success("zhangsan"); } @GetMapping("/nullPoint") public ResultBody nullPoint(){ List<String> list = null; list.add("lisi"); return ResultBody.success(); } @GetMapping("/others") public ResultBody others() throws FileNotFoundException { throw new FileNotFoundException(); } @GetMapping("/bizException") public ResultBody bizException(){ throw new BizException(CommonEnum.BODY_NOT_MATCH.getResultCode(),"出现了我们业务的错误"); } }
7.返回情况
标签:return,String,ResultBody,全局,public,rb,errorMsg,错误处理,拿来 来源: https://www.cnblogs.com/johnzhao/p/15014660.html