socket并无关闭，为何第二次write() 之后 无读到数据的？
import java.io.*;
import java.net.Socket;
public class MianTest {
public static void main(String args0[]) throws Exception {
Socket socket = new Socket("localhost", 80);
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
String header1 = "GET /hello.txt HTTP/1.1\r\nHost: localhost\n\r\n";
String header2 = "GET /hi.txt HTTP/1.1\r\nHost: localhost\r\n\r\n";
out.write(header1);
out.flush();
int i = 0;
while ((i = in.read()) != -1) {
System.out.print((char) i);
}
out.write(header2);
out.flush();
int c = 0;
while ((c = in.read()) != -1) {
System.out.print((char) c);
}
socket.close();
}
}
[b]问题补充：[/b]
to liuyu220
我是用socket 向tomcat通讯
服务端完成一次请求完后就关闭了inputstream，output数据回来 这很正常，
而第2次write()，其实有无去到服务端呢？还是服务端认为inputstream关闭了
之后来的数据不需要再读？
有无方法，不 new一个socket ，而发出第2次通讯
[code="java"]int i = 0;
while ((i = in.read()) != -1) {
System.out.print((char) i);
}[/code]
尽管http 1.1 支持长连接, 但还是由上面的代码引起的，它被阻碍了。
只有等待server side阻塞(如timeout),才会跳出循环。
稍微简单修改一下。
[code="java"]Socket socket = new Socket("localhost", 80);
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
String header1 = "HEAD / HTTP/1.1\r\nHost: $host\r\n\r\n";
String header2 = "HEAD / HTTP/1.1\r\nHost: $host\r\n\r\n";
out.write(header1);
out.flush();
StringBuffer sb = new StringBuffer();
while (true) {
char c = (char) in.read();
System.out.print(c);
if(c=='\r' || c=='\n') {
sb.append(c);
}
else {
sb.delete(0, sb.length());
}
if(sb.toString().equals("\r\n\r\n")) {
break;
}
}
out.write(header2);
out.flush();
sb.delete(0, sb.length());
while (true) {
char c = (char) in.read();
System.out.print(c);
if(c=='\r' || c=='\n') {
sb.append(c);
}
else {
sb.delete(0, sb.length());
}
if(sb.toString().equals("\r\n\r\n")) {
break;
}
}
socket.close();
[/code]
你的serversocket的inputstream没有东西你当然读不出来。
ps:你绑定80端口。不知道你要干嘛
好像这么写会有问题。 你可以吧输入输出流关闭了，再次打开。
客户端的inputstream,outputstream与服务端的inputstream,outputstream是两端通信的通道，通道关了就不能通信了。