问Spring Boot -如何在单一位置记录所有异常的请求和响应？

EN

@Bean
public CommonsRequestLoggingFilter requestLoggingFilter() {
    CommonsRequestLoggingFilter loggingFilter = new CommonsRequestLoggingFilter();
    loggingFilter.setIncludeClientInfo(true);
    loggingFilter.setIncludeQueryString(true);
    loggingFilter.setIncludePayload(true);
    loggingFilter.setMaxPayloadLength(64000);
    return loggingFilter;
}

logging.level.org.springframework.web=DEBUG
logging.level.org.hibernate.SQL=INFO
logging.file=D:/log/myapp.log

/**
 * Doogies very cool HTTP request logging
 *
 * There is also {@link org.springframework.web.filter.CommonsRequestLoggingFilter}  but it cannot log request method
 * And it cannot easily be extended.
 *
 * https://mdeinum.wordpress.com/2015/07/01/spring-framework-hidden-gems/
 * http://stackoverflow.com/questions/8933054/how-to-read-and-copy-the-http-servlet-response-output-stream-content-for-logging
 */
public class DoogiesRequestLogger extends OncePerRequestFilter {

  private boolean includeResponsePayload = true;
  private int maxPayloadLength = 1000;

  private String getContentAsString(byte[] buf, int maxLength, String charsetName) {
    if (buf == null || buf.length == 0) return "";
    int length = Math.min(buf.length, this.maxPayloadLength);
    try {
      return new String(buf, 0, length, charsetName);
    } catch (UnsupportedEncodingException ex) {
      return "Unsupported Encoding";
    }
  }

  /**
   * Log each request and respponse with full Request URI, content payload and duration of the request in ms.
   * @param request the request
   * @param response the response
   * @param filterChain chain of filters
   * @throws ServletException
   * @throws IOException
   */
  @Override
  protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {

    long startTime = System.currentTimeMillis();
    StringBuffer reqInfo = new StringBuffer()
     .append("[")
     .append(startTime % 10000)  // request ID
     .append("] ")
     .append(request.getMethod())
     .append(" ")
     .append(request.getRequestURL());

    String queryString = request.getQueryString();
    if (queryString != null) {
      reqInfo.append("?").append(queryString);
    }

    if (request.getAuthType() != null) {
      reqInfo.append(", authType=")
        .append(request.getAuthType());
    }
    if (request.getUserPrincipal() != null) {
      reqInfo.append(", principalName=")
        .append(request.getUserPrincipal().getName());
    }

    this.logger.debug("=> " + reqInfo);

    // ========= Log request and response payload ("body") ========
    // We CANNOT simply read the request payload here, because then the InputStream would be consumed and cannot be read again by the actual processing/server.
    //    String reqBody = DoogiesUtil._stream2String(request.getInputStream());   // THIS WOULD NOT WORK!
    // So we need to apply some stronger magic here :-)
    ContentCachingRequestWrapper wrappedRequest = new ContentCachingRequestWrapper(request);
    ContentCachingResponseWrapper wrappedResponse = new ContentCachingResponseWrapper(response);

    filterChain.doFilter(wrappedRequest, wrappedResponse);     // ======== This performs the actual request!
    long duration = System.currentTimeMillis() - startTime;

    // I can only log the request's body AFTER the request has been made and ContentCachingRequestWrapper did its work.
    String requestBody = this.getContentAsString(wrappedRequest.getContentAsByteArray(), this.maxPayloadLength, request.getCharacterEncoding());
    if (requestBody.length() > 0) {
      this.logger.debug("   Request body:\n" +requestBody);
    }

    this.logger.debug("<= " + reqInfo + ": returned status=" + response.getStatus() + " in "+duration + "ms");
    if (includeResponsePayload) {
      byte[] buf = wrappedResponse.getContentAsByteArray();
      this.logger.debug("   Response body:\n"+getContentAsString(buf, this.maxPayloadLength, response.getCharacterEncoding()));
    }

    wrappedResponse.copyBodyToResponse();  // IMPORTANT: copy content of response back into original response

  }


}