本文實例為大家分享了jgroups實現聊天小程序的具體代碼，供大家參考，具體內容如下
效果圖：
代碼部分：
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package com.lei.jgoups; import java.io.bufferedreader;import java.io.datainputstream;import java.io.dataoutputstream;import java.io.inputstream;import java.io.inputstreamreader;import java.io.outputstream;import java.util.linkedlist;import java.util.list; import org.jgroups.jchannel;import org.jgroups.message;import org.jgroups.receiveradapter;import org.jgroups.view;import org.jgroups.util.util; public class simplechat extends receiveradapter{ jchannel channel; string user_name=system.getproperty("user.name", "n/a"); final list<string> state=new linkedlist<string>(); public static void main(string[] args) throws exception { new simplechat().start(); } private void start() throws exception { channel=new jchannel();// 使用默認的配置, udp.xml【ybxiang:】該文件位于jgroups-x.y.z.final.jar中。 channel.setreceiver(this);//注冊一個 receiver 來接收消息并查看變化 channel.connect("chatcluster"); channel.getstate(null, 10000); eventloop(); channel.close(); } private void eventloop() { bufferedreader in = new bufferedreader(new inputstreamreader(system.in)); while(true) { try { system.out.print(">"); system.out.flush(); string line=in.readline().tolowercase(); if(line.startswith("quit") || line.startswith("exit")) break; line="[" + user_name + "] " + line; message msg=new message(null, line); channel.send(msg); } catch(exception e) { } } } //如果有節點加入后會回調此函數 public void viewaccepted(view new_view) { system.out.println("** view: " + new_view); } //接收到消息后會調用此函數 public void receive(message msg) { string line=msg.getsrc() + ": " + msg.getobject(); system.out.println(line); synchronized(state) {//同步調用 state.add(line); } } //getstate回調方法 public void getstate(outputstream output) throws exception { synchronized(state) { util.objecttostream(state, new dataoutputstream(output)); } } // 從input stream中讀取狀態，然后做相應的設置： public void setstate(inputstream input) throws exception { list<string> list; list=(list<string>)util.objectfromstream(new datainputstream(input)); synchronized(state) { state.clear(); state.addall(list); } system.out.println(list.size() + " messages in chat history):"); for(string str: list) { system.out.println(str); } }} |
架包：
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/junmoxi/article/details/78424426
