怎么读不出来,socket
- Java code
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(); } }}- Java code
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(); } }}- Java code
public class Demo1 { /** * @param args */ public static void main(String[] args) { new Thread(new ServerDemo()).start(); new Thread(new ClientDemo()).start(); }}结果
- Java code
获取成功127.0.0.1....connected.....nullnull
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
[解决办法]
不要使用readlien去读数据
byte[] temp = new byte[1024];
sck.getInputStream().read(temp)
(ret = sck.getInputStream().read(temp))!=-1
[解决办法]
这个我刚写了个服务器向客户端传输文件
发给你看看啊
[解决办法]
[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]