Java套接字和Blackberry编程
我是编程新手,我正在尝试构建一个blackberry IRC客户端,我让它连接到一个服务器,加入一个频道,然后说些什么,但是我如何接收消息呢?我不知道如何循环等待消息,有人能帮我吗?这是我的密码:Java套接字和Blackberry编程,java,sockets,client-server,irc,blackberry-eclipse-plugin,Java,Sockets,Client Server,Irc,Blackberry Eclipse Plugin,我是编程新手,我正在尝试构建一个blackberry IRC客户端,我让它连接到一个服务器,加入一个频道,然后说些什么,但是我如何接收消息呢?我不知道如何循环等待消息,有人能帮我吗?这是我的密码: package com.rim.samples.device.socketdemo; import java.io.*; import javax.microedition.io.*; import net.rim.device.api.ui.*; public class ConnectThre
package com.rim.samples.device.socketdemo;
import java.io.*;
import javax.microedition.io.*;
import net.rim.device.api.ui.*;
public class ConnectThread extends Thread
{
private InputStream _in;
private OutputStreamWriter _out;
private SocketDemoScreen _screen;
// Constructor
public ConnectThread()
{
_screen = ((SocketDemo)UiApplication.getUiApplication()).getScreen();
}
public void run()
{
StreamConnection connection = null;
String user = "Cegooow";
String channel = "#oi";
try
{
_screen.updateDisplay("Opening Connection...");
String url = "socket://" + _screen.getHostFieldText() + ":6667" + (_screen.isDirectTCP() ? ";deviceside=true" : "");
connection = (StreamConnection)Connector.open(url);
_screen.updateDisplay("Connection open");
_in = connection.openInputStream();
_out = new OutputStreamWriter(connection.openOutputStream());
StringBuffer s = new StringBuffer();
_out.write("NICK " + _screen.getNickText() + "\r\n");
_out.write("USER " + user + "8 * : Java Bot\r\n");
_out.write("JOIN " + channel + "\r\n");
_out.write("PRIVMSG " + channel + " " + _screen.getMessageFieldText() + "\r\n");
_screen.updateDisplay("Done!");
}
catch(IOException e)
{
System.err.println(e.toString());
}
finally
{
_screen.setThreadRunning(false);
try
{
_in.close();
}
catch(IOException ioe)
{
}
try
{
_out.close();
}
catch(IOException ioe)
{
}
try
{
connection.close();
}
catch(IOException ioe)
{
}
}
}
}
我在blackerry jre上使用了sockets演示示例,谢谢在您的代码中,您有一个OutputStreamWriter要写入服务器,传入连接(InputStream)未使用。你应该期待那里有任何传入的数据。。。 我能想到的最简单的例子如下:
// process the inputstream after writing to _out - in single threaded app
Reader reader = new InputStreamReader(_in);
int data;
while((data = reader.read()) != -1 ){
System.out.println((char) data); // do something with the char
}
reader.close();
实际上,最好使用BufferedReader。此外,如果您正在构建聊天应用程序,那么创建一个新线程来处理传入数据和另一个线程来处理传出数据可能会有所帮助。在您的代码中,有一个OutputStreamWriter输出到服务器,传入连接(InputStream)未使用。你应该期待那里有任何传入的数据。。。 我能想到的最简单的例子如下:
// process the inputstream after writing to _out - in single threaded app
Reader reader = new InputStreamReader(_in);
int data;
while((data = reader.read()) != -1 ){
System.out.println((char) data); // do something with the char
}
reader.close();
实际上,最好使用BufferedReader。此外,如果您正在构建聊天应用程序,那么创建一个新线程来处理传入数据和另一个线程来处理传出数据可能是有益的。一旦获得输入流读取器句柄,您就可以循环,直到连接关闭
BufferedReader reader = new BufferedReader(_in);
while(true) {
String line = reader.readLine();
// do something...
}
一旦获得输入流读取器句柄,就可以循环,直到连接关闭
BufferedReader reader = new BufferedReader(_in);
while(true) {
String line = reader.readLine();
// do something...
}