Android与服务器通信的方法之一(TCP)效率高安全性完善

Android与服务器通信的方法之一（TCP）效率高安全性完善

客户端代码： 
Java代码  

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001	package com.yarin.android.Examples_08_04;

002

003	import java.io.BufferedReader;

004	import java.io.BufferedWriter;

005	import java.io.InputStreamReader;

006	import java.io.OutputStreamWriter;

007	import java.io.PrintWriter;

008	import java.net.InetAddress;

009	import java.net.Socket;

010	import android.app.Activity;

011	import android.os.Bundle;

012	import android.util.Log;

013	import android.view.View;

014	import android.view.View.OnClickListener;

015	import android.widget.Button;

016	import android.widget.EditText;

017	import android.widget.TextView;

018

019	public class Activity01 extends Activity

020

{

021	private final String        DEBUG_TAG   = "Activity01";

022

023	private TextView    mTextView=null;

024	private EditText    mEditText=null;

025	private Button      mButton=null;

026

027

@Override

028	public void onCreate(Bundle savedInstanceState)

029

{

030	super.onCreate(savedInstanceState);

031	setContentView(R.layout.main);

032

033	mButton = (Button)findViewById(R.id.Button01);

034	mTextView=(TextView)findViewById(R.id.TextView01);

035	mEditText=(EditText)findViewById(R.id.EditText01);

036

037

//登陆

038	mButton.setOnClickListener(new OnClickListener()

039

{

040	public void onClick(View v)

041

{

042	Socket socket = null;

043	String message = mEditText.getText().toString() + "\r\n";

044

try

045

{

046	//创建Socket

047	socket = new Socket("116.29.27.138",5554); //查看本机IP,每次开机都不同

048	//socket=new Socket("192.168.1.110",50000);

049	//向服务器发送消息

050	PrintWriter out = new PrintWriter( new BufferedWriter( newOutputStreamWriter(socket.getOutputStream())),true);

051	out.println(message);

052

053	//接收来自服务器的消息

054	BufferedReader br = new BufferedReader(newInputStreamReader(socket.getInputStream()));

055	String msg = br.readLine();

056

057	if ( msg != null )

058

{

059	mTextView.setText(msg);

060

}

061

else

062

{

063	mTextView.setText("数据错误!");

064

}

065

//关闭流

066	out.close();

067	br.close();

068	//关闭Socket

069	socket.close();

070

}

071	catch (Exception e)

072

{

073	// TODO: handle exception

074	Log.e(DEBUG_TAG, e.toString());

075

}

076

}

077

});

078

}

079

}

080

081	import java.io.BufferedReader;

082	import java.io.BufferedWriter;

083	import java.io.InputStreamReader;

084	import java.io.OutputStreamWriter;

085	import java.io.PrintWriter;

086	import java.net.InetAddress;

087	import java.net.Socket;

088	import android.app.Activity;

089	import android.os.Bundle;

090	import android.util.Log;

091	import android.view.View;

092	import android.view.View.OnClickListener;

093	import android.widget.Button;

094	import android.widget.EditText;

095	import android.widget.TextView;

096

097	public class Activity01 extends Activity

098

{

099	private final String DEBUG_TAG = "Activity01";

100

101	private TextView mTextView=null;

102	private EditText mEditText=null;

103	private Button mButton=null;

104

105

@Override

106	public void onCreate(Bundle savedInstanceState)

107

{

108	super.onCreate(savedInstanceState);

109	setContentView(R.layout.main);

110

111	mButton = (Button)findViewById(R.id.Button01);

112	mTextView=(TextView)findViewById(R.id.TextView01);

113	mEditText=(EditText)findViewById(R.id.EditText01);

114

115

//登陆

116	mButton.setOnClickListener(new OnClickListener()

117

{

118	public void onClick(View v)

119

{

120	Socket socket = null;

121	String message = mEditText.getText().toString() + "\r\n";

122

try

123

{

124	//创建Socket

125	socket = new Socket("116.29.27.138",5554); //查看本机IP,每次开机都不同

126	//socket=new Socket("192.168.1.110",50000);

127	//向服务器发送消息

128	PrintWriter out = new PrintWriter( new BufferedWriter( newOutputStreamWriter(socket.getOutputStream())),true);

129	out.println(message);

130

131	//接收来自服务器的消息

132	BufferedReader br = new BufferedReader(newInputStreamReader(socket.getInputStream()));

133	String msg = br.readLine();

134

135	if ( msg != null )

136

{

137	mTextView.setText(msg);

138

}

139

else

140

{

141	mTextView.setText("数据错误!");

142

}

143

//关闭流

144	out.close();

145	br.close();

146	//关闭Socket

147	socket.close();

148

}

149	catch (Exception e)

150

{

151	// TODO: handle exception

152	Log.e(DEBUG_TAG, e.toString());

153

}

154

}

155

});

156

}

157

}

158

159

服务器端代码：

160

Java代码

161	package com.yarin.android.Examples_08_04;

162

163	import java.io.BufferedReader;

164	import java.io.BufferedWriter;

165	import java.io.InputStreamReader;

166	import java.io.OutputStreamWriter;

167	import java.io.PrintWriter;

168	import java.net.ServerSocket;

169	import java.net.Socket;

170

171	public class Server implements Runnable

172

{

173	public void run()

174

{

175

try

176

{

177	//创建ServerSocket

178	ServerSocket serverSocket = new ServerSocket(5554);

179	while (true)

180

{

181

//接受客户端请求

182	Socket client = serverSocket.accept();

183	System.out.println("accept");

184

try

185

{

186

//接收客户端消息

187	BufferedReader in = new BufferedReader(newInputStreamReader(client.getInputStream()));

188	String str = in.readLine();

189	System.out.println("read:" + str);

190	//向服务器发送消息

191	PrintWriter out = new PrintWriter( new BufferedWriter( newOutputStreamWriter(client.getOutputStream())),true);

192	out.println("server message");

193

//关闭流

194	out.close();

195	in.close();

196

}

197	catch (Exception e)

198

{

199	System.out.println(e.getMessage());

200	e.printStackTrace();

201

}

202

finally

203

{

204

//关闭

205	client.close();

206	System.out.println("close");

207

}

208

}

209

}

210	catch (Exception e)

211

{

212	System.out.println(e.getMessage());

213

}

214

}

215	//main函数，开启服务器

216	public static void main(String a[])

217

{

218	Thread desktopServerThread = new Thread(new Server());

219	desktopServerThread.start();

220

}

221

}