java与as3的socket通信

as3 与java 都提供了Socket类用于网络通信, 但两者的使用也有较大的不同. 为了方便两者的通信, 我在做了一些实验的基础上, 写下获得的经验,以免忘记. as3 的socket 读写数据方法常用的有四个: readUTF, writeUTF, readUTFBytes, writeUTFBytesjava 的socket 输入输出流常用BufferedReader 和 DataOutputStream 包装, 以提高读写效率 如: BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream(),   "UTF-8")); DataOutputStream writer = new DataOutputStream(socket.getOutputStream()); as3 方写数据时用writeUTFBytes 方法, 此时java 方读数据用reader.readLine() 阻塞式方法. as3 方写数据时用writeUTF方法, 此时java 方应改用DataInputStream 类包装输入流, 因为BufferedReader 不提供读取UTF数据的方法. java 方写数据时用writeUTF方法, 此时as3 方读数据用readUTF方法, 但此种模式有个弊端, 就是如果java方连续调用了n(n >= 2)次writeUTF方法,而as3方因来不及读取, 则最后只是第一次写入的数据被读取. java 方写数据时用writeBytes, 此时as3 方读数据用readUTFBytes方法读取数据, 可以这样读取: msg = socket.readUTFBytes(socket.bytesAvailable). 一个简单的例子: // as3 写的客户端

package test { import flash.display.MovieClip; import flash.net.Socket; import flash.events.ProgressEvent; import flash.events.IOErrorEvent; public class TestSocket extends MovieClip { private var socket:Socket; private var msg:String; public function TestSocket() { init(); } private function init() { socket = new Socket("localhost", 60000); socket.addEventListener(ProgressEvent.SOCKET_DATA, readMsg); socket.addEventListener(IOErrorEvent.IO_ERROR, errorHandler); } private function readMsg(e:ProgressEvent) { msg = socket.readUTF(); trace("message:" + msg); } private function errorHandler(e:IOErrorEvent) { trace(e.toString); } } }

//java 写的服务器端

import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.net.ServerSocket; import java.net.Socket; public class TestSocket { private ServerSocket socketServer; private Socket client; private DataOutputStream writer; private BufferedReader reader; public static void main(String[] args) { int socketPort = 60000; TestSocket test1 = new TestSocket(socketPort); } public TestSocket(int socketPort) { try { socketServer = new ServerSocket(socketPort); System.out.println("server is setted up"); while (true) { client = socketServer.accept(); //wrap input and output stream writer = new DataOutputStream(client.getOutputStream()); reader = new BufferedReader(newInputStreamReader(client.getInputStream())); //send message to client writer.writeUTF("hello client"); } } catch (IOException e) { e.printStackTrace(); } } }