[英]Java: Set non-blocking reading from connected socket
大家好!!!!!!!!!! 我的代理/服务器以以下形式接收来自客户端的请求:
GET mhttp://proxy_ip:proxy_port/file.mhtml\n
\n
这是我的代码:
import java.io.*;
import java.net.Socket;
import java.net.ServerSocket;
import java.net.InetAddress;
import java.net.UnknownHostException;
public class ProxyMain {
public static void main(String argv[]) {
int proxyPort = 55554;
String proxyAddr = "127.0.0.1";
ServerSocket proxySocket = null;
try {
proxySocket = new ServerSocket(proxyPort, 50, InetAddress.getByName("127.0.0.1"));
}
catch (Exception e) {
System.err.println("Impossible to create socket server!");
System.out.flush();
System.exit(1);
}
System.out.printf("Server active on port: %d and on address %s\n", proxyPort, proxySocket.getInetAddress());
while (true) {
Socket client = null;
BufferedReader in = null;
PrintWriter out = null;
String request = new String();
String tmp = new String();
try {
client = proxySocket.accept();
System.out.println("Connected to: ");
System.out.println(client.getInetAddress().toString());
System.out.printf("On port %d\n", client.getPort());
in = new BufferedReader(new InputStreamReader(client.getInputStream()));
out = new PrintWriter(client.getOutputStream(), true);
}
/*catch (IOException e) {
System.err.println("Couldn't get I/O for connection accepted");
System.exit(1);
}*/
catch (Exception e) {
System.out.println("Error occurred!");
System.exit(1);
}
System.out.println("Received request:");
try{
#####################################
while ((tmp = in.readLine()) != null)
System.out.println(tmp);
request = request + tmp;
#####################################
}
catch (IOException ioe) {
System.err.println("Impossible to read mhttp request!");
System.exit(1);
}
System.out.println(request);
}
}
}
我在用#########分隔的块中遇到问题。 我不知道如何在.readLine()中停止该方法。 首先,它读取:GET mhttp:// proxy_ip:proxy_port / file.mhtml \\ n,然后读取\\ n,但随后阻塞,仍在等待读取,但请求已完成。 我认为即使发送请求后,客户端也可以保持连接状态,但是我不能更改它,因为这是我老师的软件。 我该如何解决?
不要读整行,读一个字节,直到遇到'\\n'
或按照Greg的建议执行2条读线。 无论如何,由于您知道传入消息的确切格式,因此请调整代码以进行相应的阅读。
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