android中客服端和服务器端的链接

本文主要简单介绍了android手机中模拟客户端和服务器端的通信，其中服务器端的开发使用了JavaSE中的知识，其主要代码如下：

android客服端源码：

                    packagecom.socket.client; 
            
            importjava.io.*; 
            importjava.net.Socket; 
            importjava.net.UnknownHostException; 
            
            importandroid.app.Activity; 
            importandroid.os.Bundle; 
            importandroid.text.TextUtils; 
            importandroid.view.View; 
            importandroid.view.View.OnClickListener; 
            importandroid.widget.Button; 
            importandroid.widget.EditText; 
            importandroid.widget.Toast; 
            
            publicclassmainextendsActivityimplementsOnClickListener{ 
            //定义声明需要用到的UI元素 
            privateEditTextedtmsgcontent; 
            privateButtonbtnSend; 
            //ip地址 
            privateStringip="10.0.2.2"; 
            //端口号 
            privateintport=8080; 
            @Override
            publicvoidonCreate(BundlesavedInstanceState){ 
            super.onCreate(savedInstanceState); 
            setContentView(R.layout.main); 
            InitView(); 
            } 
            
            privatevoidInitView(){ 
            //通过id获取ui元素对象 
            edtmsgcontent=(EditText)findViewById(R.id.msgcontent); 
            btnSend=(Button)findViewById(R.id.btnsend); 
            //为btnsend设置点击事件 
            btnSend.setOnClickListener(this); 
            } 
            
            publicvoidonClick(Viewbt){ 
            try{ 
            Stringmsg=edtmsgcontent.getText().toString(); 
            if(!TextUtils.isEmpty(msg)) 
            SendMsg(ip,port,msg); 
            else{ 
            Toast.makeText(this,"请先输入要发送的内容",Toast.LENGTH_LONG); 
            edtmsgcontent.requestFocus(); 
            } 
            }catch(Exceptione){ 
             
            e.printStackTrace(); 
            } 
            } 
            
            publicvoidSendMsg(Stringip,intport,Stringmsg) 
            throwsUnknownHostException,IOException{ 
            try{ 
            Socketsocket=null; 
            socket=newSocket(ip,port); 
            BufferedWriterwriter=newBufferedWriter(newOutputStreamWriter( 
            socket.getOutputStream())); 
            writer.write(msg); 
            writer.flush(); 
            writer.close(); 
            socket.close(); 
            }catch(Exceptione){ 
            e.printStackTrace(); 
            } 
            } 
            }

注意要为其添加权限：

<uses-permission android:name="android.permission.INTERNET" />

服务器端源码：

                    importjava.io.BufferedReader; 
            importjava.io.InputStreamReader; 
            importjava.net.ServerSocket; 
            importjava.net.Socket; 
            
            publicclassTCPDesktopServerimplementsRunnable{ 
            
            publicstaticfinalStringSERVERIP="10.0.2.2"; 
            
            publicstaticfinalintSERVERPORT=8080; 
            
            publicvoidrun(){ 
            
            try{ 
            
            System.out.println("S:Connecting..."); 
            
            ServerSocketserverSocket=newServerSocket(SERVERPORT); 
            
            while(true){ 
            
            Socketclient=serverSocket.accept(); 
            
            System.out.println("S:Receiving..."); 
            
            try{ 
            
            BufferedReaderin=newBufferedReader( 
            newInputStreamReader(client.getInputStream())); 
            
            Stringstr=in.readLine(); 
            
            System.out.println("S:Received:'"+str+"'"); 
            
            }catch(Exceptione){ 
            
            System.out.println("S:Error"); 
            
            e.printStackTrace(); 
            
            }finally{ 
            
            client.close(); 
            
            System.out.println("S:Done."); 
            
            } 
            
            } 
            
            }catch(Exceptione){ 
            
            System.out.println("S:Error"); 
            
            e.printStackTrace(); 
            } 
            } 
            
            publicstaticvoidmain(Stringa[]){ 
            
            ThreaddesktopServerThread=newThread(newTCPDesktopServer()); 
            
            desktopServerThread.start(); 
            } 
            
            }

其结果如下：在android手机端中输入内容

当点击发送时，我们可以看到在服务器端的控制台中输入所接受到的内容

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