本文实例为大家分享了c#使用socket实现局域网聊天的具体代码，供大家参考，具体内容如下
先运行一个java写的局域网聊天，效果图如下
后使用c#图形修改如下：
c#代码：
servlet服务端
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using system; using system.collections.generic; using system.drawing; using system.windows.forms; using system.net; using system.net.sockets; using system.threading; using system.io; using system.text; using system.text.regularexpressions; namespace server { public partial class mainform : form { private tcplistener listener; private dictionary<string,tcpclient> socketlist; private bool tag = true; private stringbuilder charlist; public mainform() { initializecomponent(); control.checkforillegalcrossthreadcalls = false; } void bu_startclick(object sender, eventargs e) { cb_chatlist.items.clear(); selectchat.text=""; int port = 8888; //创建服务端，并且启动 try{ listener = new tcplistener(ipaddress.parse(ipaddress()),port); listener.start(); bu_start.enabled = false; bu_stop.enabled = true; }catch(exception ex) { messagebox.show("服务器启动失败， 原因："+ex.message); bu_start.enabled = true; bu_stop.enabled = false; return; } selectchat.text = "服务器启动成功，访问ip："+ipaddress()+" 端口号："+port; //记录住连接的客户端 socketlist = new dictionary<string,tcpclient>(); charlist = new stringbuilder(); //使用多线程，用于多个客户端接入 thread th = new thread(new threadstart(executetask)); th.start(); } public void executetask() { while(tag) { //等待用户连接 tcpclient client = null; try{ client = listener.accepttcpclient(); }catch(exception) { } thread th = new thread(executeread); th.start((object)client); } } public void executeread(object pamars) { //永久监听读取客户端 tcpclient client = pamars as tcpclient; while(tag) { networkstream ns = client.getstream(); streamreader sr = new streamreader(ns); string msg = string.empty; string people = string.empty; try { msg = sr.readline(); if(msg.indexof("<clientname>")!=-1) { msg = regex.split(msg,"=")[1]; cb_chatlist.items.add(msg); charlist.append(msg).append("<@>"); socketlist.add(msg,client); msg = "<br>欢迎【"+msg+"】光临<br>"; } selectchat.appendtext(msg.replace("<br>","\r\n")); sendmsg(string.empty,msg); } catch (exception) { //messagebox.show(ex.message.tostring()); break; } } } public void sendmsg(string target,string msg) { if(string.empty!=target) { tcpclient client = socketlist[target]; streamwriter sw = new streamwriter(client.getstream()); sw.writeline(msg); sw.flush(); }else{ dictionary<string,tcpclient>.keycollection keycoll = socketlist.keys; foreach (string name in keycoll) { streamwriter sw = new streamwriter(socketlist[name].getstream()); sw.writeline(msg+"<@=@>"+charlist.tostring()); sw.flush(); } } } /*根据计算名获取ip地址*/ public string ipaddress() { ipaddress[] address = dns.gethostaddresses(dns.gethostname()); return address[2].tostring(); } void serverfromformclosing(object sender, formclosingeventargs e) { e.cancel = false; if(tag) tag = false; if(listener!=null) listener.stop(); } void bu_stopclick(object sender, eventargs e) { bu_start.enabled = true; bu_stop.enabled = false; if(tag) tag = false; if(listener!=null) listener.stop(); } } } |
client客户端
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using system; using system.drawing; using system.windows.forms; using system.threading; using system.net; using system.net.sockets; using system.io; using system.text; using system.text.regularexpressions; namespace client { public partial class mainform : form { private system.windows.forms.timer closewindowtimer; private streamreader sr; private streamwriter sw; private tcpclient tc; private clientlong cl; private bool tag = true; public mainform(tcpclient tcp,clientlong clo) { cl = clo; tc = tcp; initializecomponent(); control.checkforillegalcrossthreadcalls = false; bu_simple.hide(); } void clientfromload(object sender, eventargs e) { piaycheckedchanged(); } /*事件方法*/ public void piaycheckedchanged() { closewindowtimer = new system.windows.forms.timer(); closewindowtimer.interval = 1000; closewindowtimer.tick += new eventhandler(theout); closewindowtimer.start(); } /*执行的事件*/ public void theout(object source, eventargs e) { //这里单独开一个线程用来显示信息 try{ thread t1 = new thread(new threadstart(readmsg)); t1.start(); }catch(exception) { } } void readmsg() { if(tag && tc!=null){ sr = new streamreader(tc.getstream()); string msg = sr.readline(); string[] address = regex.split(msg,"<@=@>"); chattext.appendtext(address[0].replace("<br>","\r\n")); address = regex.split(address[1],"<@>"); cb_chatlist.items.clear(); foreach (string s in address) { if(!string.isnullorempty(s) && s != cl.clientname) cb_chatlist.items.add(s); } } } void button1click(object sender, eventargs e) { if(string.isnullorempty(textbox2.text)){ messagebox.show("请输入消息");return; } sw = new streamwriter(tc.getstream()); sw.writeline("<br>"+cl.clientname+" "+datetime.now.tostring("yyyy-mm-dd hh:mm:ss")+"<br> "+textbox2.text); textbox2.text = ""; sw.flush(); } void bu_exitclick(object sender, eventargs e) { mainformformclosing(null,null); } void button2click(object sender, eventargs e) { chattext.text = ""; } void mainformformclosing(object sender, formclosingeventargs e) { closewindowtimer.stop(); cl.close(); tag = false; if(sr!=null) sr.close(); if(sw!=null) sw.close(); } void bu_simpleclick(object sender, eventargs e) { string selected = cb_chatlist.text; if(selected==null) { messagebox.show("请选择单聊对象"); return; } } } } |
补充：
1.上传下载文件、聊天表情、私聊、踢人.......都是可以扩展的功能。
只是目前还没有可执行的思路，希望有相同爱好者多多提出宝贵意见，我会继续关注。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/hubiao_0618/article/details/35796919
