一共两个文件,一个处理全局异常,保存信息到日志,另外一个负责返回异常信息给接口,只要将其文件添加到项目中,无需再做其他配置即可
优先执行此类,这里不好抓取404、403等错误信息
getMaps()请参考 获取request中传递过来的参数信息
getHeaders()请参考 获取request中传递过来的header信息
代码如下:
import java.util.Enumeration; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpServletRequest; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; /** * <h5>描述:全局异常处理类</h5> * 优先执行此异常处理类 * */ @ControllerAdvice public class MyExceptionHandler { private final Logger log = LoggerFactory.getLogger(getClass()); @ExceptionHandler(value =Exception.class) public String exceptionHandler(HttpServletRequest request, Exception e){ Map<String, Object> paramsMap = getMaps(request); Map<String, Object> headersMap = getHeaders(request); String requestUri = request.getAttribute("org.springframework.web.servlet.HandlerMapping.lookupPath").toString(); log.error("请求[{}]发生[{}]异常/r/n参数[{}]/r/nheader[{}]", requestUri,e.getMessage(),paramsMap,headersMap, e); // 返回错误信息,交给其他异常处理类处理 return e.getMessage(); } // =================== private method =================== /** * <h5>功能:获取从request中传递过来的参数信息</h5> * * @return Map<String, Object> */ private Map<String, Object> getMaps(HttpServletRequest request){ Map<String, Object> paramMap = new HashMap<String, Object>(); Enumeration<String> enume = request.getParameterNames(); while (enume.hasMoreElements()) { String key = (String) enume.nextElement(); String[] values = request.getParameterValues(key); paramMap.put(key, values.length == 1 ? request.getParameter(key).trim() : values); } return paramMap; } /** * <h5>功能: 获取从request中传递过来的header信息</h5> * * @return Map<String, Object> */ private Map<String, Object> getHeaders(HttpServletRequest request) { Map<String, Object> headerMap = new HashMap<String, Object>(); Enumeration<?> er = request.getHeaderNames();//获取请求头的所有name值 String headerName; while(er.hasMoreElements()){ headerName = er.nextElement().toString(); headerMap.put(headerName, request.getHeader(headerName)); } return headerMap; } }
后执行此类,此类可以有效抓取,404、403等信息,代码如下:
import javax.servlet.http.HttpServletRequest; import org.springframework.boot.web.servlet.error.ErrorController; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import com.alibaba.fastjson.JSONObject; import com.jnxj.common.vo.MessageBean; /** * <h5>描述:全局错误信息处理</h5> * 执行完异常处理类之后执行此类 */ @RestController public class MyErrorController implements ErrorController { @Override public String getErrorPath() { return "/error"; } @RequestMapping("/error") public String handleError(HttpServletRequest request) { String message; // 获取statusCode:401,404,500 Integer statusCode = (Integer) request.getAttribute("javax.servlet.error.status_code"); if (statusCode == 400) { message = "语义有误,当前请求无法被服务器理解或请求参数有误"; } else if (statusCode == 401) { message = "当前请求需要用户验证"; } else if (statusCode == 403) { message = "权限不足"; } else if (statusCode == 404) { message = "请求的资源不存在"; } else { message = "系统不小心生病了,正在紧急修复中,请耐心等候...o(╥﹏╥)o"; } MessageBean messageBean = new MessageBean(); messageBean.setCode(statusCode.toString()); messageBean.setMessage(message); return JSONObject.toJSONString(messageBean); } }
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