package com.doumee.core.annotation.trace;
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import com.alibaba.fastjson.JSON;
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import com.doumee.core.constants.ExceptionLevel;
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import com.doumee.core.model.ApiResponse;
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import com.doumee.core.model.LoginUserInfo;
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import com.doumee.core.servlet.ServletDuplicateInputStream;
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import com.doumee.core.servlet.ServletDuplicateOutputStream;
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import com.doumee.core.utils.Utils;
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import com.doumee.dao.system.model.SystemTraceLog;
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import com.doumee.service.system.SystemTraceLogService;
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import io.swagger.annotations.Api;
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import io.swagger.annotations.ApiOperation;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.shiro.SecurityUtils;
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import org.apache.shiro.web.servlet.ShiroHttpServletRequest;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.http.HttpMethod;
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import org.springframework.stereotype.Component;
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import org.springframework.web.method.HandlerMethod;
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import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.lang.reflect.Method;
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import java.util.Date;
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/**
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* 跟踪日志处理
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* @author Eva.Caesar Liu
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* @date 2022/03/15 09:54
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*/
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@Slf4j
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@Component
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public class TraceInterceptor extends HandlerInterceptorAdapter {
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@Value("${project.version}")
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private String systemVersion;
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@Value("${trace.exclude-patterns:}")
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private String excludePatterns;
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@Value("${trace.smart}")
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private Boolean isSmart;
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private static final String ATTRIBUTE_TRACE_ID = "eva-trace-id";
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private static final String ATTRIBUTE_TRACE_TIME = "eva-trace-time";
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private static final int MAX_STORE_REQUEST_PARAM_SIZE = 1888;
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private static final int MAX_STORE_REQUEST_RESULT_SIZE = 1888;
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private static final int MAX_STORE_EXCEPTION_STACK_SIZE = 4888;
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private static final String MORE_DETAIL_STRING = "\n\n---------- more content is missing here ... ----------\n\n";
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@Autowired
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private SystemTraceLogService systemTraceLogService;
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@Override
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public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
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try {
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if (!(handler instanceof HandlerMethod) || !(request instanceof ShiroHttpServletRequest)) {
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return Boolean.TRUE;
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}
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if (!this.allowTrace(request, handler)) {
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return Boolean.TRUE;
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}
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SystemTraceLog traceLog = new SystemTraceLog();
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Date now = new Date();
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HandlerMethod handlerMethod = (HandlerMethod) handler;
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Method method = handlerMethod.getMethod();
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Trace methodTrace = method.getAnnotation(Trace.class);
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Trace classTrace = method.getDeclaringClass().getAnnotation(Trace.class);
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// 获取跟踪类型
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TraceType traceType = methodTrace == null ? null : methodTrace.type();
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if (traceType == null) {
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traceType = this.smartType(request);
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}
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// 用户信息
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LoginUserInfo userInfo = (LoginUserInfo) SecurityUtils.getSubject().getPrincipal();
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if (userInfo != null) {
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traceLog.setUserId(userInfo.getId());
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traceLog.setUsername(userInfo.getUsername());
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traceLog.setUserRealname(userInfo.getReal_name());
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traceLog.setUserRoles(StringUtils.join(userInfo.getRoles(), ","));
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traceLog.setUserPermissions(StringUtils.join(userInfo.getPermissions(), ","));
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}
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// 操作信息
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traceLog.setOperaModule(this.getModule(handler));
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traceLog.setOperaType(traceType.getType());
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traceLog.setOperaRemark(this.getOperaRemark(handler, traceType));
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traceLog.setOperaTime(now);
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// 请求信息
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traceLog.setRequestUri(request.getRequestURI());
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traceLog.setRequestMethod(request.getMethod());
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if (methodTrace == null || methodTrace.withRequestParameters() || (classTrace != null && classTrace.withRequestParameters())) {
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String requestParameters = request.getQueryString();
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if (HttpMethod.POST.matches(request.getMethod())) {
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requestParameters = ((ServletDuplicateInputStream)request.getInputStream()).getBody();
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}
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traceLog.setRequestParams(
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requestParameters != null && requestParameters.length() > MAX_STORE_REQUEST_PARAM_SIZE
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? requestParameters.substring(0, MAX_STORE_REQUEST_PARAM_SIZE) + MORE_DETAIL_STRING
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: requestParameters
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);
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}
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// 辅助信息
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traceLog.setServerIp(Utils.Server.getIP());
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traceLog.setIp(Utils.User_Client.getIP(request));
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traceLog.setSystemVersion(systemVersion);
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traceLog.setPlatform(Utils.User_Client.getPlatform(request));
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traceLog.setClientInfo(Utils.User_Client.getBrowser(request));
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traceLog.setOsInfo(Utils.User_Client.getOS(request));
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systemTraceLogService.create(traceLog);
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request.setAttribute(ATTRIBUTE_TRACE_ID, traceLog.getId());
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request.setAttribute(ATTRIBUTE_TRACE_TIME, now.getTime());
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} catch (Exception e) {
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log.warn("Eva @Trace throw an exception, you can get detail message by debug mode.");
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log.debug(e.getMessage(), e);
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}
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return Boolean.TRUE;
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}
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@Override
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public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws IOException {
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// 获取跟踪ID
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Object traceId = request.getAttribute(ATTRIBUTE_TRACE_ID);
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Object traceTime = request.getAttribute(ATTRIBUTE_TRACE_TIME);
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request.removeAttribute(ATTRIBUTE_TRACE_ID);
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request.removeAttribute(ATTRIBUTE_TRACE_TIME);
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if (traceId == null) {
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return;
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}
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// 计算操作耗时
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SystemTraceLog traceLog = new SystemTraceLog();
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traceLog.setId(Integer.valueOf(traceId.toString()));
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traceLog.setOperaSpendTime(Integer.valueOf("" + (System.currentTimeMillis() - Long.valueOf(traceTime.toString()))));
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// 记录操作日志状态
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String operaType = response.getHeader("eva-opera-type");
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// - 下载接口处理，无需记录响应内容
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if ("download".equals(operaType)) {
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handleDownloadResponse(traceLog, ex);
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return;
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}
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// - 返回json的接口处理
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handleJsonResponse(traceLog, request, response, handler, ex);
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}
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/**
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* JSON响应处理
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*/
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private void handleJsonResponse(SystemTraceLog traceLog, HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws IOException {
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HandlerMethod handlerMethod = (HandlerMethod) handler;
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Method method = handlerMethod.getMethod();
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Trace methodTrace = method.getAnnotation(Trace.class);
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Trace classTrace = method.getDeclaringClass().getAnnotation(Trace.class);
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String responseBody = ((ServletDuplicateOutputStream) response.getOutputStream()).getContent();
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ApiResponse apiResponse = null;
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try {
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apiResponse = JSON.parseObject(responseBody, ApiResponse.class);
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} catch (Exception e) {
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}
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// 记录响应结果
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if (methodTrace == null || methodTrace.withRequestResult() || (classTrace != null && classTrace.withRequestResult())) {
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String requestResult = responseBody;
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if (apiResponse != null) {
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// 排除exception信息
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String e = apiResponse.getException();
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apiResponse.setException(null);
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requestResult = JSON.toJSONString(apiResponse);
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apiResponse.setException(e);
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}
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traceLog.setRequestResult(
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requestResult != null && requestResult.length() > MAX_STORE_REQUEST_RESULT_SIZE
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? requestResult.substring(0, MAX_STORE_REQUEST_RESULT_SIZE) + MORE_DETAIL_STRING
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: requestResult
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);
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}
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// 请求成功
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if (ex == null && (apiResponse != null && apiResponse.isSuccess())) {
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traceLog.setStatus(TraceStatus.SUCCESS.getCode());
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systemTraceLogService.updateById(traceLog);
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return;
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}
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// 请求失败
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traceLog.setStatus(TraceStatus.FAILED.getCode());
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String exceptionStack = null;
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// 全局捕获到的未处理的异常
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if (apiResponse != null && apiResponse.getException() != null) {
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exceptionStack = apiResponse.getException();
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traceLog.setExceptionLevel(ExceptionLevel.DANGER.getLevel());
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}
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// 其它异常情况
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if (exceptionStack == null) {
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// 未捕获到的未处理的异常
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if (ex != null) {
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StackTraceElement[] trace = ex.getStackTrace();
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StringBuilder exception = new StringBuilder(ex + "\n");
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for (StackTraceElement traceElement : trace) {
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exception.append("\tat ").append(traceElement).append("\n");
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}
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exceptionStack = exception.toString();
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traceLog.setExceptionLevel(ExceptionLevel.DANGER.getLevel());
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}
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// 业务异常
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else if (apiResponse != null) {
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traceLog.setExceptionLevel(ExceptionLevel.LOW.getLevel());
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exceptionStack = apiResponse.getMessage();
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}
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// 响应格式非JSON的异常（在设计角度上，这类接口不应记录操作日志，此处做一个警告处理）
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else {
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traceLog.setExceptionLevel(ExceptionLevel.WARN.getLevel());
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exceptionStack = "Eva can not trace for action " + request.getRequestURI();
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}
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}
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traceLog.setExceptionStack(
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exceptionStack != null && exceptionStack.length() > MAX_STORE_EXCEPTION_STACK_SIZE
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? exceptionStack.substring(0, MAX_STORE_EXCEPTION_STACK_SIZE) + MORE_DETAIL_STRING
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: exceptionStack);
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systemTraceLogService.updateById(traceLog);
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}
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/**
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* 下载响应处理
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*/
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private void handleDownloadResponse (SystemTraceLog traceLog, Exception ex) {
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if (ex == null) {
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traceLog.setStatus(TraceStatus.SUCCESS.getCode());
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systemTraceLogService.updateById(traceLog);
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return;
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}
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// 出现异常
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traceLog.setStatus(TraceStatus.FAILED.getCode());
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StackTraceElement[] trace = ex.getStackTrace();
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StringBuilder exception = new StringBuilder(ex + "\n");
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for (StackTraceElement traceElement : trace) {
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exception.append("\tat ").append(traceElement).append("\n");
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}
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traceLog.setExceptionStack(exception.length() > MAX_STORE_EXCEPTION_STACK_SIZE
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? exception.substring(0, MAX_STORE_EXCEPTION_STACK_SIZE) + MORE_DETAIL_STRING
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: exception.toString());
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traceLog.setExceptionLevel(ExceptionLevel.DANGER.getLevel());
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systemTraceLogService.updateById(traceLog);
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}
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/**
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* 获取跟踪模块
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*/
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private String getModule (Object handler) {
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HandlerMethod handlerMethod = (HandlerMethod) handler;
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Method method = handlerMethod.getMethod();
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// 优先读取方法上的@Trace模块配置，如果无注解或无备注，则读取类上@Trace模块配置
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Trace trace = method.getAnnotation(Trace.class);
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if (trace == null || "".equals(trace.module())) {
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trace = method.getDeclaringClass().getAnnotation(Trace.class);
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}
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String module = "";
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if (trace != null && StringUtils.isNotBlank(trace.module())) {
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module = trace.module();
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}
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// 从@Api注解中读取
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if (StringUtils.isBlank(module)) {
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Api api = method.getDeclaringClass().getAnnotation(Api.class);
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if (api != null) {
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module = StringUtils.join(api.tags(), ", ");
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}
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}
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return module;
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}
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/**
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* 获取操作备注
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*/
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private String getOperaRemark (Object handler, TraceType traceType) {
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HandlerMethod handlerMethod = (HandlerMethod) handler;
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Method method = handlerMethod.getMethod();
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// 从Trace注解中获取
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Trace trace = method.getAnnotation(Trace.class);
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if (trace != null && StringUtils.isNotBlank(trace.remark())) {
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return trace.remark();
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}
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// 从ApiOperation注解中获取
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ApiOperation apiOperation = method.getAnnotation(ApiOperation.class);
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if (apiOperation != null && StringUtils.isNotBlank(apiOperation.value())) {
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return apiOperation.value();
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}
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return traceType.getRemark();
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}
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/**
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* 是否允许跟踪
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*/
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private Boolean allowTrace (HttpServletRequest request, Object handler) {
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HandlerMethod handlerMethod = (HandlerMethod) handler;
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Method method = handlerMethod.getMethod();
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Trace methodTrace = method.getAnnotation(Trace.class);
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Trace classTrace = method.getDeclaringClass().getAnnotation(Trace.class);
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// 非智能模式
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if (!isSmart) {
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if (methodTrace == null && classTrace == null) {
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return Boolean.FALSE;
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}
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if (methodTrace == null && classTrace.exclude()) {
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return Boolean.FALSE;
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}
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}
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// 方法排除
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if (methodTrace != null && methodTrace.exclude()) {
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return Boolean.FALSE;
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}
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// 类排除
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if (methodTrace == null && classTrace != null && classTrace.exclude()) {
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return Boolean.FALSE;
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}
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// 路径排除
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String[] patterns = excludePatterns.split(",");
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if (methodTrace == null && patterns.length > 0) {
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String uri = request.getRequestURI();
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for (String pattern : patterns) {
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if (uri.matches(pattern.trim())) {
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return Boolean.FALSE;
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}
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}
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}
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return Boolean.TRUE;
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}
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/**
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* 获取跟踪类型
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*/
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private TraceType smartType (HttpServletRequest request) {
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// 批量删除
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if (request.getRequestURI().matches(smartPattern("delete/batch"))) {
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return TraceType.DELETE_BATCH;
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}
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// 删除
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if (request.getRequestURI().matches(smartPattern("delete"))) {
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return TraceType.DELETE;
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}
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// 新增
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if (request.getRequestURI().matches(smartPattern("create"))) {
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return TraceType.CREATE;
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}
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// 修改
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if (request.getRequestURI().matches(smartPattern("update"))) {
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return TraceType.UPDATE;
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}
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// 导入
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if (request.getRequestURI().matches(smartPattern("import"))) {
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return TraceType.IMPORT;
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}
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// 导出
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if (request.getRequestURI().matches(smartPattern("export"))) {
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return TraceType.EXPORT;
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}
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// 重置
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if (request.getRequestURI().matches(smartPattern("reset"))) {
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return TraceType.RESET;
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}
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return TraceType.UNKNOWN;
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}
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/**
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* 获取自动适配正则
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*/
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private String smartPattern (String keyword) {
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return ".+/" + keyword + "[a-zA-Z0-9\\-\\_]*$";
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}
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}
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