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【核心代码】package com.gson;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.lang.reflect.Field;import java.lang.reflect.Method;import java.util.Date;import java.util.Properties;import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletInputStream;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.log4j.Logger;import com.gson.bean.Articles;import com.gson.bean.InMessage;import com.gson.bean.OutMessage;import com.gson.bean.TextOutMessage;import com.gson.inf.MessageProcessingHandler;import com.gson.util.Tools;import com.gson.util.XStreamFactory;import com.thoughtworks.xstream.XStream;/** * 请求拦截 * * @author GodSon * */public class WeChatFilter implements Filter { private final Logger logger = Logger.getLogger(WeChatFilter.class); private String _token; private String conf = "classPath:wechat.properties"; private String defaultHandler = "com.gson.inf.DefaultMessageProcessingHandlerImpl"; private Properties p; @Override public void destroy() { logger.info("WeChatFilter已经销毁"); } @Override public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException { HttpServletRequest request = (HttpServletRequest) req; HttpServletResponse response = (HttpServletResponse) res; Boolean isGet = request.getMethod().equals("GET"); String path = request.getServletPath(); String pathInfo = path.substring(path.lastIndexOf("/")); if (pathInfo == null) { response.getWriter().write("error"); } else { _token = pathInfo.substring(1); if (isGet) { doGet(request, response); } else { doPost(request, response); } } } private void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { response.setCharacterEncoding("UTF-8"); response.setContentType("text/xml"); OutMessage oms = new OutMessage(); ServletInputStream in = request.getInputStream(); // 转换微信post过来的xml内容 XStream xs = XStreamFactory.init(false); xs.alias("xml", InMessage.class); String xmlMsg = Tools.inputStream2String(in); logger.debug("输入消息:[" xmlMsg "]"); InMessage msg = (InMessage) xs.fromXML(xmlMsg); // 获取自定消息处理器，如果自定义处理器则使用默认处理器。 String handler = p.getProperty("MessageProcessingHandlerImpl"); if (handler == null) handler = defaultHandler; try { // 加载处理器 Class clazz = Class.forName(handler); MessageProcessingHandler processingHandler = (MessageProcessingHandler) clazz.newInstance(); // 取得消息类型 String type = msg.getMsgType(); Method mt = clazz.getMethod(type "TypeMsg", InMessage.class); oms = (OutMessage) mt.invoke(processingHandler, msg); if (oms == null) { oms = new TextOutMessage(); ((TextOutMessage) oms).setContent("系统错误!"); } setMsgInfo(oms,msg); } catch (Exception e) { logger.error(e); oms = new TextOutMessage(); ((TextOutMessage) oms).setContent("系统错误!"); try { setMsgInfo(oms,msg); } catch (Exception e1) { logger.error(e); } } // 把发送发送对象转换为xml输出 xs = XStreamFactory.init(true); xs.alias("xml", oms.getClass()); xs.alias("item", Articles.class); String xml = xs.toXML(oms); logger.debug("输出消息:[" xml "]"); response.getWriter().write(xml); } private void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException { String signature = request.getParameter("signature");// 微信加密签名 String timestamp = request.getParameter("timestamp");// 时间戳 String nonce = request.getParameter("nonce");// 随机数 String echostr = request.getParameter("echostr");// // 验证 if (Tools.checkSignature(_token, signature, timestamp, nonce)) { response.getWriter().write(echostr); } } private void setMsgInfo(OutMessage oms,InMessage msg) throws Exception { // 设置发送信息 Class outMsg = oms.getClass().getSuperclass(); Field CreateTime = outMsg.getDeclaredField("CreateTime"); Field ToUserName = outMsg.getDeclaredField("ToUserName"); Field FromUserName = outMsg.getDeclaredField("FromUserName"); ToUserName.setAccessible(true); CreateTime.setAccessible(true); FromUserName.setAccessible(true); CreateTime.set(oms, new Date().getTime()); ToUserName.set(oms, msg.getFromUserName()); FromUserName.set(oms, msg.getToUserName()); } /** * 启动的时候加载wechat.properties配置 可以在过滤器配置wechat.properties路径 */ @Override public void init(FilterConfig config) throws ServletException { String cf = config.getInitParameter("conf"); if (cf != null) { conf = cf; } String classPath = this.getClass().getResource("/").getPath().replaceAll("%20", " "); conf = conf.replace("classPath:", classPath); p = new Properties(); File pfile = new File(conf); if (pfile.exists()) { try { p.load(new FileInputStream(pfile)); } catch (FileNotFoundException e) { logger.error("未找到wechat.properties", e); } catch (IOException e) { logger.error("wechat.properties读取异常", e); } } logger.info("WeChatFilter已经启动！"); }}

这是代码，将帮助您对大文件的数据使用贝叶斯 classification.it 使用概率进行分类各自的预定义的类和帮助你做出决定在结束中的数据进行分类。

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