About the socket security problem,Plese help.

Question

I use the port 843 server to send xml to swf.But not work. Please help. My Code is:
Server:
//HelloTest.java
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
//让其继承线程类是为了更好控制 其余的线程
public class HelloTest extends Thread {
* @param args
public static void main(String[] args) {
// TODO Auto-generated method stub
//发送策略的服务器
new HelloTest().start();
//这个是用的fuq
new Thread(new QtServer()).start();
@Override
public void run()
System.out.println("策略服务器启动");
  boolean lising=true;
ServerSocket ss;
try {
ss = new ServerSocket(843);
while(lising)
try {
//得到socket服务器
  Socket sc=ss.accept();
SendPolicyFile sp=new SendPolicyFile(sc);
System.out.println("为什么呢");
new Thread(sp).start();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
ss.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
//SendPolicyFile.java
public class SendPolicyFile implements Runnable {
private Socket soc;
private OutputStream _socketOut;
private InputStream _socketIn;
public SendPolicyFile(Socket s) throws IOException
this.soc=s;
_socketOut=s.getOutputStream();
_socketIn=s.getInputStream();
//设置超时的限制
//soc.setSoTimeout(1000);
public void run() {
// TODO Auto-generated method stub
    try {
readRandSp();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
@SuppressWarnings("unused")
private void readRandSp() throws IOException
  if(read().equals("<policy-file-request/>"))
  System.out.println("write Policy to flash");
  writePolicy();
        //close stream and socket
  close();
//写策略文件的方法
private void writePolicy() throws IOException
   String string1="<?xml version=\"utf-8\" ?><cross-domain-policy><site-control permitted-cross-domain-policies=\"master-only\"/><allow-access-from domain=\"*\" to-ports=\"8001\"/></cross-domain-policy>"+"\u0000";
PrintWriter pw=new PrintWriter(_socketOut);
pw.println(string1+"\u0000");
pw.flush();
pw.close();
System.out.println(string1+"\u0000");
//关闭流
//关闭socket
public void close()
  if(_socketOut!=null)
try {
_socketOut.close();
if(_socketIn!=null)
  _socketIn.close();
  if(soc!=null)
  soc.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
_socketIn=null;
_socketOut=null;
soc=null;
//发送两个Socket
private String read() throws IOException
System.out.println("这里也执行吗");
StringBuffer buffer=new StringBuffer();
int codePoint;
boolean zeroByteRead=false;
do{
//这个地方阻塞了
codePoint=this._socketIn.read();
//如果接受到的codePoint为null那证明客户端与我们失去连接了
if(codePoint==0)
  zeroByteRead=true;
else
buffer.appendCodePoint(codePoint);
while(!zeroByteRead && buffer.length()<30);
return buffer.toString();

Answer 1

I use the port 843 server to send xml to swf.But not work. Please help. My Code is:
Server:
//HelloTest.java
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
//让其继承线程类是为了更好控制 其余的线程
public class HelloTest extends Thread {
* @param args
public static void main(String[] args) {
// TODO Auto-generated method stub
//发送策略的服务器
new HelloTest().start();
//这个是用的fuq
new Thread(new QtServer()).start();
@Override
public void run()
System.out.println("策略服务器启动");
  boolean lising=true;
ServerSocket ss;
try {
ss = new ServerSocket(843);
while(lising)
try {
//得到socket服务器
  Socket sc=ss.accept();
SendPolicyFile sp=new SendPolicyFile(sc);
System.out.println("为什么呢");
new Thread(sp).start();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
ss.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
//SendPolicyFile.java
public class SendPolicyFile implements Runnable {
private Socket soc;
private OutputStream _socketOut;
private InputStream _socketIn;
public SendPolicyFile(Socket s) throws IOException
this.soc=s;
_socketOut=s.getOutputStream();
_socketIn=s.getInputStream();
//设置超时的限制
//soc.setSoTimeout(1000);
public void run() {
// TODO Auto-generated method stub
    try {
readRandSp();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
@SuppressWarnings("unused")
private void readRandSp() throws IOException
  if(read().equals("<policy-file-request/>"))
  System.out.println("write Policy to flash");
  writePolicy();
        //close stream and socket
  close();
//写策略文件的方法
private void writePolicy() throws IOException
   String string1="<?xml version=\"utf-8\" ?><cross-domain-policy><site-control permitted-cross-domain-policies=\"master-only\"/><allow-access-from domain=\"*\" to-ports=\"8001\"/></cross-domain-policy>"+"\u0000";
PrintWriter pw=new PrintWriter(_socketOut);
pw.println(string1+"\u0000");
pw.flush();
pw.close();
System.out.println(string1+"\u0000");
//关闭流
//关闭socket
public void close()
  if(_socketOut!=null)
try {
_socketOut.close();
if(_socketIn!=null)
  _socketIn.close();
  if(soc!=null)
  soc.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
_socketIn=null;
_socketOut=null;
soc=null;
//发送两个Socket
private String read() throws IOException
System.out.println("这里也执行吗");
StringBuffer buffer=new StringBuffer();
int codePoint;
boolean zeroByteRead=false;
do{
//这个地方阻塞了
codePoint=this._socketIn.read();
//如果接受到的codePoint为null那证明客户端与我们失去连接了
if(codePoint==0)
  zeroByteRead=true;
else
buffer.appendCodePoint(codePoint);
while(!zeroByteRead && buffer.length()<30);
return buffer.toString();