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android
说明： 使用Eclipse和java语言实现Android物联网开发(Implementation of Android Internet of Things Development with Eclipse and Java Languag)
- 2019-06-18 09:17:19下载
- 积分：1
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房屋租赁管理系统
java 编写的房屋租赁管理系统，有数据库，Mysql。实现发布信息，删除，查找信息等功能。注册用户运用的Ajax,效果很好。里面还嵌入了一个论坛网页系统。
- 2022-02-01 22:40:05下载
- 积分：1
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snqualifiedvowel
说明： 该程序中包括为一个CDMA和OFDM的信道分配仿真程序,(This program includes a channel assignment emulator for CDMA and OFDM.)
- 2019-03-28 13:55:03下载
- 积分：1
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微信公众平台开发模式(JAVA) SDK/微信app
【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！"); }}
- 2014-01-21下载
- 积分：1
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向量空间模型
向量空间模型是最具代表性的信息检索模型之一，用统计词频表示出特征项在文档和查询当中的权重，文档和提问之间的相关度可有各自向量在向量空间中的相对位置决定。该模型将非结构化的文本信息表示成向量形式，采用基于统计学的词加权处理模式，改进了模型的检索结果，并定量化地判断系统中所有文档与某一提问的相关度的大小，并按相似度值的降序排列方式输出结果文档。
- 2022-07-22 04:42:00下载
- 积分：1
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vgprznb3
多载波以及扩频通信系统相关的书,主要内容有OFDM以及多载波CDMA,偏重于工程感念,理论性不是很强(Multicarrier and spread spectrum communication system related books, including OFDM and multicarrier CDMA, focus on engineering perception, the theory is not very strong)
- 2019-03-27 22:27:57下载
- 积分：1
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画图，只画直线，矩形，椭圆-Java画图实验-Java源代码
/*PainterDemo.java，画图，只画直线，矩形，椭圆-Java画图实验-Java源代码
*只画直线，矩形，椭圆，只能向右下角画
*
*PainterPanel extends JPanel implements MouseListener
*addMouseListener(this);
*
*JToggleButton
*
*hxz*/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
class PainterPanel extends JPanel implements MouseListener{
- 2023-05-23 08:10:04下载
- 积分：1
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Write Yourself Web crawler book source code
- 2023-05-28 05:30:03下载
- 积分：1
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googlelocation
说明： 用Android studio配置谷歌地图，实现坐标定位并显示。(Configure Google Map with Android studio to achieve coordinate positioning and display.)
- 2019-04-05 20:54:55下载
- 积分：1
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银行应用程序
这是一个银行应用程序，它是非常简单的只是附加用于获取点。如果您是新用户您可以轻松地学习。
- 2023-01-28 04:25:15下载
- 积分：1
