我在从服务器到android应用程序的通信时遇到问题,基本上,通信是这样的:

1. send x and y
2. get the list of coordinates from server
3. send "ok"
4. receive titles string


一切顺利,直到最后一行,我知道它可以正常发送,因为它可以与telnet一起使用,但是我的Android应用程序未收到任何信息。这是用于从客户端发送和接收的代码:

    clientSocket = new Socket("10.0.2.2", 1234);
    Log.d("LatitudeE6", ""+point.getLatitudeE6());
    Log.d("LongitudeE6", ""+point.getLongitudeE6());
    os = new PrintStream(clientSocket.getOutputStream());
    is = new DataInputStream(clientSocket.getInputStream());
    sentenceX = ""+point.getLatitudeE6();
    sentenceY = ""+point.getLongitudeE6();
    os.println(sentenceX + " "+ sentenceY+'\n');

    String thing =is.readLine();
    String [] holder = thing.split("\\s+");
    System.out.println("thing printed: " +thing);

    os.println("ok\n");
    String test = is.readLine();
    System.out.println("tester: " +test); // this doesn' work


服务器:

try{
    in = new DataInputStream(clientSocket.getInputStream());
    os = new PrintStream(clientSocket.getOutputStream());
        ms.connector();
        while(true){
        line = in.readLine();

        if(line.startsWith("51789181 19426953")==true){
// these are the coordinates, if the client sends them, it will receive  the list of other coordinates
        os.println(ms.lister().toString().replace('[', ' ').replace(']', ' ').trim().replace(',', ' ') +""+'\n');
        os.flush();

         }else if ( line.equals("ok")==true) {
                     os.flush();
                       os.println(ms.topicDesc().toString().replace('[', ' ').replace(']', ' ').trim().replace(',', ' ') +""+'\n');
                 }
    }
catch(IOException e){
            e.printStackTrace();
        }

最佳答案

您正在发送两个换行符,一个通过os.println(),另一个通过"\n"。这将转换为两行od数据。在客户端,您只是通过readLine()读取一行。您在服务器和客户端上多次执行此操作。

尝试从客户端和服务器上的发送代码中删除"\n"

10-06 12:38
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