从 scriptlet 转换为 JSF 托管 bean 问题

Question

我正在尝试将此 scriptlet 代码 转换为 JSF 类。

视图代码

<f:view>
<h:form binding="#{jsfSocketClient.form}">
    <h:outputText binding="#{jsfSocketClient.text}"/>

</h:form>
</f:view>

和java代码

private HtmlForm form = new HtmlForm();
private HtmlOutputText text = new HtmlOutputText();

public HtmlForm getForm() 
{
    System.out.println("instance:  "+FacesContext.getCurrentInstance().getResponseWriter());
    ResponseWriter writer = (FacesContext.getCurrentInstance()).getResponseWriter();  
    try{

        int character;
        Socket socket = new Socket("127.0.0.1", 8765);

        InputStream inSocket = socket.getInputStream();
        OutputStream outSocket = socket.getOutputStream();

        String str = "Hello!\n";
        byte buffer[] = str.getBytes();
        outSocket.write(buffer);
        char characters = 0;
        while ((character = inSocket.read()) != -1) {
            text.setValue((char)character);
            //writer.write((char)character);
            //characters += (char)character;
        }
        //text.setValue(characters);
        if(str.equalsIgnoreCase("bye"))
                {
                    socket.close();
                }
    }
    catch(Exception e)
    {
        e.printStackTrace();
        text.setValue("You must first start the server application (YourServer.java) at the command prompt.");          
    }
    return form;
}

当我运行scriptlet代码时，我得到的答案是 “服务器收到此消息：Hello！”

当我运行 JSF 代码时，我没有收到此回复。请纠正我的错误

，提前致谢

Answer 1

我纠正我的答案。问题在于输入流的处理。这是固定代码：

    String response = "";
    try {

        Socket socket = new Socket("127.0.0.1", 8765);

        Reader reader = new InputStreamReader(socket.getInputStream());
        OutputStream outSocket = socket.getOutputStream();

        String str = "Hello!\n";
        byte buffer[] = str.getBytes();
        outSocket.write(buffer);

        CharArrayWriter result = new CharArrayWriter();
        char[] buf = new char[4096];
        int charsRead = 0;
        while ((charsRead = reader.read(buf)) != -1) {
            result.write(buf, 0, charsRead);
        }
        response = result.toString();

        if (str.equalsIgnoreCase("bye")) {
            socket.close();
        }
    } catch (Exception e) {
        e.printStackTrace();
        response = "You must first start the server application (YourServer.java) at the command prompt.";
    }
    text.setValue(response);