java - Java中如何通过Socket接收纯文本

Question

我试图通过Socket发送纯文本。所以我在 StackOverflow 中找到了一篇文章，我关注了它，我猜我写了但是，如何在客户端中接受纯文本作为字符串？我使用了 BufferedReader() 和 InputStreamReader() 类，但抛出了异常。

Exception : exception java.net.SocketException: Broken pipe

代码如下:
服务器:

OutputStreamWriter osw = new OutputStreamWriter(socket.getOutputStream(), "UTF-8");
osw.write(fileName, 0, fileName.length());

客户:

InputStream in = socket.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String fileName = br.readLine();
br.close();

一些帮助会很棒。 :) 谢谢。

客户端代码:

public void soc_client() throws Exception {
    long time = System.currentTimeMillis();
    long totalRecieved = 0;

    try {
        Socket sock = new Socket("172.16.27.106", 55000);
        System.out.println("Hello Client");
        InputStream in = sock.getInputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String fileName = br.readLine();
        File outputFile = new File(fileName + "");
        br.close(); // CLOSING BufferedReader

        FileOutputStream fileOutputStream = new FileOutputStream(outputFile);

        byte[] buffer = new byte[100 * 1024];
        int bytesRead = 0;

        while ((bytesRead = in.read(buffer)) != -1) {
            fileOutputStream.write(buffer, 0, bytesRead);
            totalRecieved += bytesRead;
            System.out.println("Recieved " + (totalRecieved / 1024)
                    + " kilobytes in "
                    + ((System.currentTimeMillis() - time) / 1000)
                    + " seconds");
        }
        fileOutputStream.close();
        sock.close();
    } catch (Exception e) {
        System.out.println("Exception " + e);
    } finally {
        System.out.println("Recieved " + totalRecieved + " bytes in "
                + (System.currentTimeMillis() - time) + "ms.");
    }
}

Answer 1

您正在读取一行，但没有发送一行，并且也没有关闭 OutputWriter。因此，readLine() 将永远阻塞，等待行终止符或永远不会出现的 EOS。

1. 在消息中添加换行符。
2. 关闭OutputWriter。