Question

发生了什么：

Main server -> String("isalive") => Other server
Other server -> String("alive") => Main server

配置端口和内容（两台服务器都是专用机器）

和代码。东西似乎破坏的地方是（我添加了调试消息....）

reader.readLine();

主服务器代码：

        Socket clientSocket = new Socket(key, 6789);
        if(clientSocket.isConnected() && !clientSocket.isClosed()){
            String in;

            DataOutputStream outToServer = new DataOutputStream(clientSocket.getOutputStream());   
            BufferedReader inFromServer = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));  
            outToServer.writeBytes(isalive);   
            outToServer.flush();
            //it wont go pass this one 
            in = inFromServer.readLine();   

            if(in.equals("alive")){
                if(!Data.hosts.get(key)){
                    Data.hosts.put(key, true);

                }
            }

            outToServer.close();
            inFromServer.close();
            clientSocket.close();

它不会通过这个，因为它会停在另一台服务器上。

代码：

Socket connectionSocket = welcomeSocket.accept();      
         BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));            
         DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream());    
         //stuck here
         rec = inFromClient.readLine();    
         if(rec.equals("isalive")){
             outToClient.writeBytes("alive");    
         }

         inFromClient.close();

         outToClient.flush();
         outToClient.close();

         connectionSocket.close();

提前致谢。

Answer 1

您不应该组合DataOutputStream和BufferedReader。考虑使用PrintWriter代替并指定字符编码（为了安全）。

PrintWriter writer = new PrintWriter(new OutputStreamWriter(socket.getOutputStream(), "UTF-8"));
BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream(), "UTF-8"));

writer.println("Hello.");
writer.flush();
reader.readLine();

TCP连接读取线错误/读取错误

1 个答案: