java通过filter实现操作日志入库的实现

java Web工程实现操作日志记录的方式有很多，比如通过spring aop方式实现，也可以通过Filter方式实现。

public class StoreLogFilter implements Filter {private static final Logger logger = LoggerFactory.getLogger(StoreLogFilter.class);private static Map<String, String> logRelation = new HashMap<String, String>();// 存放请求URL对应的日志类型和操作说明@Overridepublic void init(FilterConfig filterConfig) throws ServletException {// 从配置文件获取配置ipString path = "logRelation.properties";Properties prop = new Properties();try {InputStreamReader ins = new InputStreamReader(StoreLogFilter.class.getClassLoader().getResourceAsStream(path), "UTF-8");prop.load(ins);Enumeration keyNames = prop.keys();while (keyNames.hasMoreElements()) {String key = (String) keyNames.nextElement();if (StringUtils.isNotBlank(key)) {String value = prop.getProperty(key);logRelation.put(key, value);}}} catch (Exception e) {logger.error("init logRelation error," + e.getMessage());}}@Overridepublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)throws IOException, ServletException {HttpServletRequest httpServletRequest;try {MyResponseWrapper responseWrapper = new MyResponseWrapper((HttpServletResponse) response);chain.doFilter(request, responseWrapper);if (request instanceof HttpServletRequest) {httpServletRequest = (HttpServletRequest) request;String userName = CommonUtils.getUserName(httpServletRequest);String pathInfo = httpServletRequest.getPathInfo();pathInfo = pathInfo.substring(1, pathInfo.length());//http://localhost:8080/Coolmart/login/loginString url = httpServletRequest.getRequestURI().toString();if(url.contains("/login/login")){userName = httpServletRequest.getParameter("account");}if (logRelation.get(pathInfo) != null && StringUtils.isNotBlank(userName)) {// 记录日志insertLog(responseWrapper, httpServletRequest, userName, pathInfo);}}} catch (Exception e) {String errorMsg = new StringBuilder().append("write log to database error,").append(e.getMessage()).toString();logger.error(errorMsg);} finally {}}@Overridepublic void destroy() {}/** * 记录日志 *  * @param responseWrapper * @param httpServletRequest * @param userName * @param pathInfo */private void insertLog(MyResponseWrapper responseWrapper, HttpServletRequest httpServletRequest, String userName,String pathInfo) {MyWriter myWriter = responseWrapper.getMyWriter();String returnMsg = "";if (myWriter != null) {returnMsg = myWriter.getContent();}String ip = CommonUtils.getRequestIp(httpServletRequest);String param = CommonUtils.getParam(httpServletRequest);String value = logRelation.get(pathInfo);String[] values = value.split(",");String action = values[0];int type = Integer.parseInt(values[1]);// 根据返回的rtnCode值判断执行结果(0正常,1异常)int result = getProcessResult(returnMsg);String requestUrl = String.valueOf(httpServletRequest.getRequestURL());// 开始记录日志StoreService.getInstance().insertLog(userName, ip, param, action, type, result, returnMsg,requestUrl);}/** * 根据返回的rtnCode值判断执行结果 *  * @param returnMsg * @return */private int getProcessResult(String returnMsg) {if (StringUtils.isNotBlank(returnMsg)) {String code = String.valueOf(JSONObject.fromObject(returnMsg).get("rtnCode"));if (code.equalsIgnoreCase("null") || code.equals("0") || code.equals("000")) {return 0;} else {return 1;}}return 0;}}

工具类:CommonUtils

public class CommonUtils {/** * 获取请求ip *  * @param request * @return */public static String getRequestIp(HttpServletRequest request) {String ip = request.getHeader("X-Forwarded-For");if (StringUtils.isNotEmpty(ip) && !"unKnown".equalsIgnoreCase(ip)) {// 多次反向代理后会有多个ip值，第一个ip才是真实ipint index = ip.indexOf(",");if (index != -1) {return ip.substring(0, index);} else {return ip;}}ip = request.getHeader("X-Real-IP");if (StringUtils.isNotEmpty(ip) && !"unKnown".equalsIgnoreCase(ip)) {return ip;}ip = request.getRemoteAddr();return ip.equals("0:0:0:0:0:0:0:1") ? "127.0.0.1" : ip;}/** * 获取请求参数,以json字符串形式返回 *  * @param request * @return * @throws JsonProcessingException */public static String getParam(HttpServletRequest request) {Map<String, String> params = getParamKv(request);return JSONObject.fromObject(params).toString();}/** * 获取请求参数,以map形式返回 *  * @param request * @return */public static Map<String, String> getParamKv(HttpServletRequest request) {Map<String, String> map = new HashMap<String, String>();Enumeration paramNames = request.getParameterNames();while (paramNames.hasMoreElements()) {String paramName = (String) paramNames.nextElement();String[] paramValues = request.getParameterValues(paramName);if (paramValues.length == 1) {String paramValue = paramValues[0];if (paramValue.length() != 0) {map.put(paramName, paramValue);}}}return map;}/** * 获取用户名 *  * @param request * @return */public static String getUserName(HttpServletRequest request) {HttpSession session = request.getSession();Object userNameObj = session.getAttribute(Constants.SS_ACCOUNT);String userName = "";if (userNameObj != null) {userName = (String) userNameObj;}return userName;}}