Applet在web页面打开远程桌面前端测试代码【备忘】

曾经用Applet在web页面打开远程桌面的前端测试代码，后台代码无法公开，仅作备忘。

RdpApplet.java：

package com.elusiva.rdp.applet;import java.applet.Applet;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Graphics;import java.awt.TextArea;import java.io.ByteArrayOutputStream;import java.io.FilterOutputStream;import java.io.IOException;import java.io.OutputStream;import java.io.PrintStream;import java.net.MalformedURLException;import java.net.URL;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.StringTokenizer;import com.elusiva.rdp.Common;import com.elusiva.rdp.OrderException;import com.elusiva.rdp.RdesktopException;import com.elusiva.rdp.RdesktopSwing;public class RdpApplet extends Applet {private final String rdpShellPath = "C:\\Program Files\\XXX\\Open Virtual Desktop\\rdpshell.exe";private RdpThread_2 rThread = null;private String[] argArray = null;private List<String> argList = new ArrayList<String>();    TextArea aTextArea = null;    PrintStream aPrintStream  = null;     public void paint(Graphics g){       g.setColor(new Color(0xFFFFFF));       g.fillRect(0,0,g.getClipBounds().width,g.getClipBounds().height);       g.setColor(new Color(0x000000));       int width = g.getFontMetrics().stringWidth("Launching isoft IVAPP Everywhere session...");       int x = (int) (g.getClipBounds().getWidth() / 2) - (width/2);       int y = (int) (g.getClipBounds().getHeight() / 2);       if(!redirectOutput) g.drawString("Launching isoft IVAPP Everywhere session...", x, y);       width = g.getFontMetrics().stringWidth("Connect to Server...");       x = (int) (g.getClipBounds().getWidth() / 2) - (width/2);       y = (int) (g.getClipBounds().getHeight() / 2) + 20;       if(!redirectOutput) g.drawString("Connect to Server...", x, y);   }      boolean redirectOutput = false;      public void init(){       redirectOutput = isSet("redirectOutput");       if(redirectOutput){           aPrintStream = new PrintStream( new FilteredStream(new ByteArrayOutputStream() ) );           System.setOut(aPrintStream);           System.setErr(aPrintStream);           aTextArea = new TextArea();           setLayout(new BorderLayout());           add("Center" , aTextArea);       }              initArgArray();       //getargArray();   }   public void initArgArray() {String url = this.getParameter("url");System.out.println("url=" + url);Map<String, String> params = null;params = RequestServer.doRequest(url);// 获取用户账号参数argList.add("-u");argList.add("31" + params.get("loginName"));// 获取用户密码参数argList.add("-p");argList.add(params.get("loginPassword"));argList.add("-fsmc");//获取应用程序pathargList.add("-s");argList.add(rdpShellPath+" "+params.get("appExePath"));//获取IP参数argList.add(params.get("ip"));argArray = new String[argList.size()];Object[] objList = argList.toArray();int j = 0;for (Object o : objList) {argArray[j++] = o.toString();System.out.print(o.toString());}}       public void start(){            Common.underApplet = true;        rThread = new RdpThread_2(argArray, this.getParameter("redirect_on_exit"), this);        rThread.start();    }        public void stop(){        rThread = null;        notify();    }        private boolean isSet(String parameter){        String s = this.getParameter(parameter);        if(s != null){            if(s.equalsIgnoreCase("yes"))                return true;        }        return false;    }        class FilteredStream extends FilterOutputStream {        public FilteredStream(OutputStream aStream) {           super(aStream);           }        public void write(byte b[]) throws IOException {           String aString = new String(b);           aTextArea.append(aString);           }        public void write(byte b[], int off, int len) throws IOException {           String aString = new String(b , off , len);           aTextArea.append(aString);        }     }    }class RdpThread extends Thread{         String[] args;    String redirect = null;    Applet parentApplet = null;        public RdpThread(String[] args, String redirect, Applet a){        parentApplet = a;        this.args = args;        this.redirect = redirect;    }        public void run(){        this.setPriority(Thread.MAX_PRIORITY);        try {            RdesktopSwing.main(args);                   if(redirect != null){               URL u = new URL(redirect);               parentApplet.getAppletContext().showDocument(u);                          }        } catch (OrderException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } catch (RdesktopException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } catch (MalformedURLException e) {            // TODO Auto-generated catch block            System.err.println(e.getClass().getName() + ": " + e.getMessage());            e.printStackTrace();        }        Common.underApplet = false;    }}

RequestServer.java：

package com.elusiva.rdp.applet;import java.io.IOException;import java.io.InputStream;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import java.util.Iterator;import java.util.Map;  public class RequestServer {  public static void main(String[] args) throws IOException {String requestURL = "http://192.168.210.201/sm/webservices/server_random.php?type=windows&sid=1293712837Q5yTs";doRequest(requestURL);}    public static Map<String,String> doRequest(String requestURL) {      Map<String,String> params = null;try {//创建URLURL url = new URL(requestURL);//打开URL连接        URLConnection connection = url.openConnection();                  /*         * 然后把连接设为输出模式。URLConnection通常作为输入来使用，比如下载一个Web页。          * 通过把URLConnection设为输出，可以把数据向某个Web页传送，如下：          */          connection.setDoOutput(true);                  // 一旦发送成功，用以下方法就可以得到服务器的回应：          InputStream is = connection.getInputStream();                  //解析XML获取参数        params = XMLReader.ParseXML(is);} catch (MalformedURLException e) {System.out.println("创建URL失败！");} catch(IOException e){System.out.println("打开连接失败！");}return params;    }  }  

XMLReader.java：

package com.elusiva.rdp.applet;import java.io.InputStream;import java.util.HashMap;import java.util.Map;import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import org.w3c.dom.Document;import org.w3c.dom.Element;import org.w3c.dom.NodeList;public class XMLReader {private final static Map<String,String> params = new HashMap<String,String>();public static Map<String,String> ParseXML(InputStream is) {try {DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();DocumentBuilder builder = factory.newDocumentBuilder();Document doc = builder.parse(is);//以去掉XML文档中作为格式化内容的空白doc.normalize(); NodeList links = doc.getElementsByTagName("server");Element link = (Element) links.item(0);//将参数放到map中String code = link.getElementsByTagName("code").item(0).getFirstChild().getNodeValue();if("0".equals(code)){params.put("ip", link.getElementsByTagName("ip").item(0).getFirstChild().getNodeValue());params.put("loginName", link.getElementsByTagName("loginName").item(0).getFirstChild().getNodeValue());params.put("loginPassword", link.getElementsByTagName("loginPassword").item(0).getFirstChild().getNodeValue());params.put("appExePath", link.getElementsByTagName("appExePath").item(0).getFirstChild().getNodeValue());}} catch (Exception e) {System.err.println(e.getMessage());}return params;}}