怎么读不出来，socket

[corner1988]

public class ClientDemo implements Runnable{
	public void run(){
		try{
			//连接服务器
			Socket s=new Socket("127.0.0.1",10033);
			//读取本机文件
			BufferedReader br=new BufferedReader(new FileReader("j:\\new.txt"));
			//获得输出流
			System.out.println("获取成功");
		
			PrintWriter out=new PrintWriter(s.getOutputStream(),true);
			//增加标记
		//	long time=System.currentTimeMillis();
			//DataOutputStream dos=new DataOutputStream(s.getOutputStream());
			//dos.writeLong(time);
			//像服务器写文件
			
			String line=null;
			while((line=br.readLine())!=null){
				out.print(line);
			}
			
			System.out.println(line);
			//System.out.println("上传成功");
			s.shutdownOutput();//关闭客户端输出流,相当于给个-1；
			//获得输入流
			BufferedReader Sbr=new BufferedReader(new InputStreamReader(s.getInputStream()));
			//获得服务器返回信息
			String str=Sbr.readLine();
			System.out.println(str);
			br.close();
			s.close();
		}
		
		catch(IOException e){
			e.printStackTrace();
			
		}
		 
	}

}

public class ServerDemo implements Runnable{
	public void run(){
		try {
			ServerSocket ss=new ServerSocket(10033);
			Socket s=ss.accept();
			String ip=s.getInetAddress().getHostAddress();
			System.out.println(ip+"....connected.....");
			BufferedReader br=new BufferedReader(new InputStreamReader(s.getInputStream()));
			//DataInputStream dis=new DataInputStream(s.getInputStream());
			//long l=dis.readLong();
			PrintWriter out=new PrintWriter(new FileWriter("text.txt"),true);
			String line=null;
			while((line=br.readLine())!=null){
				//if("over".equals(line)){
					//break;
				//}
				out.print(line);
			}
			PrintWriter Cout=new PrintWriter(s.getOutputStream());
			Cout.write("上传成功");
			out.close();
			s.close();
			ss.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}

public class Demo1 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new Thread(new ServerDemo()).start();
		new Thread(new ClientDemo()).start();
	}

}

结果

获取成功
127.0.0.1....connected.....
null
null

问题 1，貌似读取就不成功，更没法复制了
问题2，想清空缓冲区，发现无法调用flush()方法
问题3，如果我把 两线程放于两个类中分别启动就报socket reset异常

[dalancon]

这个我刚写了个服务器向客户端传输文件
发给你看看啊

[dalancon]

[code=import] java.net.*;
import java.io.*;
import java.util.*;

public class TcpServer {

/**
*
*/
public static void main(String[ args) throws Exception {
// TODO Auto-generated method stub
while (true) {
ServerSocket server = new ServerSocket(2222);
File f = new File("D:/JavaWorkspace/day12/src/TcpServer.java");

Socket socket = server.accept();
DataOutputStream dos = new DataOutputStream(
socket.getOutputStream());
System.out.println("请输入要传递的文件名");
Scanner in = new Scanner(System.in);
String path = in.next();// 文件名
if (path != null) {
dos.writeBytes(path);
}
dos.flush();
dos.close();
socket.close();


Socket socket1 = server.accept();
DataOutputStream dos1 = new DataOutputStream(
socket1.getOutputStream());

FileInputStream fr = new FileInputStream(f);
int b = 0;
while ((b = fr.read()) != -1) {
dos1.write(b);
}
System.out.println("server over");

dos1.flush();
dos1.close();
server.close();
socket1.close();

}
}

}
][/code]

[dalancon]

[codeimport java.net.*;
import java.io.*;

public class TcpClient {

/**
* @param args从服务器向客户端发送一个文件，客户端接收文件并保存
*/
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
while (true) {
Socket client = new Socket("10.33.0.9", 2222);
File f = null;
InputStream in = client.getInputStream();
int b = 0;
String str = "C:/";
while ((b = in.read()) != -1) {
str += (char) b;
}
f = new File(str);
f.createNewFile();
System.out.println("文件创建成功");
client.close();

Socket client1 = new Socket("10.33.0.9", 2222);

int bc = 0;
BufferedInputStream buffin = new BufferedInputStream(
client1.getInputStream());// 将管道中的数据读入缓冲区
FileOutputStream fw = new FileOutputStream(f);
while ((bc = buffin.read()) != -1) {
fw.write(bc);
}
System.out.println("client over");
fw.close();
client1.close();
buffin.close();
}
}
}
/code]

[李狗蛋52635]

问题 1，看看文件是不是空的，在client端读文件那里打断点看有没有读到东西。
问题2，PrintWriter没有flush()吧 应该，可以换用别的DataOutputStream之类。
问题3，要是放在两个类中，也要确认server先启动，client后启动。

本人愚见...

[骤逝]

不要使用readlien去读数据
byte[] temp = new byte[1024];
sck.getInputStream().read(temp)
(ret = sck.getInputStream().read(temp))!=-1