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2013

生永玄伐奈弁菴 5 隙
醴
HTTP 籵陓/末弗永玄籵陓

1.

Socket 籵陓毛俴丹皿伕弘仿丞
末弗永玄籵陓毛瞳蚚仄凶民乓永玄弁仿奶失件玄(Android 失皿伉)午扔奈田皿伕弘仿丞
毛釬傖仄引允﹝踏隙反﹜扔奈田反赻煦及 PC 囀卞お�今六引允﹝

↗Android Virtual Device(AVD)及偞隅
Eclipse 井日巨立亙伊奈正匹犯田永弘毛俴丹凶戶卞﹜巨立亙伊奈正及傷藺及偞隅毛袚樓仄引
允﹝
Eclipse 及丟瓦亙奈井日[它奶件玉它]->[AVD Manager]毛腢亼仄﹜
[New]示正件毛弁伉永弁﹝
眕狟及方丹卞偞隅仄化仁分今中﹝

末奈旦戊奈玉(弁仿奶失件玄�)
Eclipse 毛嶱中化﹜由永弗奈斥巨弁旦皿伕奈仿奈匹衵弁伉永弁仄﹜[陔�]->[Android 皿

伕斥尼弁玄]毛腢亼仄引允﹝
皿伕斥尼弁玄靡反
☆SocketEx★
午仄化仁分今中﹝
Target SDK
午 Compile With 反 Android4.0(IceCreamSandwich)毛腢太引允﹝ActivityName 反
☆SocketEx★午仄引仄斤丹﹝
package com.example.socketex;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
public class SocketEx extends Activity implements View.OnClickListener{
private final static String BR = System.getProperty("line.separator");
private final static int WC = LinearLayout.LayoutParams.WRAP_CONTENT;
private final static int MP = LinearLayout.LayoutParams.MATCH_PARENT;
private static final String ADDRESS = "192.168.1.100"; ↗劐載允月仇午ㄐ
private TextViewlblReceive;
private EditTexteditText;
private Button btnSend;
private Socket socket;
private InputStream in;
private OutputStream out;
private boolean error;

private final Handler handler = new Handler();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
LinearLayout layout = new LinearLayout(this);
layout.setBackgroundColor(Color.rgb(255,255,255));
layout.setOrientation(LinearLayout.VERTICAL);
setContentView(layout);
editText = new EditText(this);
editText.setId(2);
editText.setText("", TextView.BufferType.NORMAL);
editText.setLayoutParams(new

LinearLayout.LayoutParams(MP,

WC));
layout.addView(editText);
btnSend = new Button(this);
btnSend.setText("冞陓");
btnSend.setOnClickListener(this);
btnSend.setLayoutParams(new

LinearLayout.LayoutParams(WC,

WC));
layout.addView(btnSend);
lblReceive = new TextView(this);
lblReceive.setId(1);
lblReceive.setText("");
lblReceive.setTextSize(16.0f);
lblReceive.setTextColor(Color.rgb(0, 0, 0));
lblReceive.setLayoutParams(new
WC));
layout.addView(lblReceive);


}
@Override
public void onStart() {
super.onStart();
Thread thread = new Thread() {
public void run() {
try {
connect(ADDRESS, 8080);
} catch (Exception e) {
}
}
};
thread.start();
}
@Override
public void onStop() {
super.onStop();
disconnect();
}
private void addText(final String text) {
handler.post(new Runnable() {
@Override
public void run() {
lblReceive.setText(text + BR + lblReceive.getText());
}
});
}
private void connect(String address, int port) {
int size;
String str;

byte[] w = new byte[1024];
try {
addText("諉適笢");
socket = new Socket(address, port);
in = socket.getInputStream();
out = socket.getOutputStream();
addText("諉適俇賸");
while(socket != null &&socket.isConnected()) {
size = in.read(w);
if (size <= 0) {
continue;
}
str = new String(w, 0, size, "UTF-8");
addText(str);
}
addText("籵陓卞囮㷍仄引仄凶﹝");
}
}
private void disconnect() {
try {
socket.close();
socket = null;
}
}
@Override
public void onClick(View v) {
Thread thread = new Thread(new Runnable() {
@Override

public void run() {
error = false;
try {
if (socket != null &&socket.isConnected()) {
byte[]

w

=

editText.getText().toString().getBytes("UTF8");
out.write(w);
out.flush();
}
error = true;
}
public void run() {
if (error) {
addText(" 籵陓卞囮㷍仄引
仄凶");
} else {
editText.setText("",
TextView.BufferType.NORMAL);
}
}
});
}
});
thread.start();
}
}
末奈旦戊奈玉(扔奈田�)
Eclipse 匹陔� Java 皿伕斥尼弁玄◇chatserver◆毛釬傖仄引允﹝釬傖仄凶日﹜src 白巧伙母
及眻狟卞﹜
◇ChatServer.java◆
◇CharServerThread.java◆2 勾及 java 白央奶伙毛釬傖仄引
允﹝末奈旦戊奈玉反公木冗木眕狟及方丹卞�扴仄引允﹝
♀ChatServer.java

package com.example;
import java.io.IOException;
import java.net.InetAddress;
import java.net.ServerSocket;
/**
*
* This class launches the web application in an embedded Jetty container.
* This is the entry point to your application. The Java command that is used for
* launching should fire this main method.
*
*/
public class ChatServer {
public void start(int port) {
ServerSocket server;
Socket socket;
ChatServerThread thread;
try {
server = new ServerSocket(port);
System.err.println("ChatServer start" +
"?nIP

Address:"

InetAddress.getLocalHost().getHostAddress()
+ "?nPort:" + port);
while (true) {
try {
socket = server.accept();
thread = new ChatServerThread(socket);
thread.start();
} catch (IOException e) {
System.out.println(e);
}

+

}
System.err.println(e);
}
}
public static void main(String[] args) throws Exception{
ChatServer server = new ChatServer();
server.start(8080);
}
}
♀ChatServerThread.java
package com.example;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
public class ChatServerThread extends Thread {
private

static

List<ChatServerThread>

ArrayList<ChatServerThread>();
private Socket socket;
public ChatServerThread(Socket socket) {
super();
this.socket = socket;
threads.add(this);
}

threads

=

new

public void run() {
InputStream in = null;
String message;
int size;
byte[] w = new byte[10240];
try {
System.err.println("ChatServerThread start");
in = socket.getInputStream();
while(true) {
try {
size = in.read(w);
if (size <= 0) {
throw new IOException();
}
message = new String(w, 0, size, "UTF8");
System.out.println(message);
sendMessageAll(message);
} catch(IOException e) {
System.out.println("ChatServerThread
stop");
socket.close();
threads.remove(this);
return;
}
}
System.err.println(e);
}
}
public void sendMessageAll(String message) {
for (ChatServerThread thread : threads) {

if (thread.isAlive()) {
thread.sendMessage(this, message);
}
}
System.out.println(message);
}
public void sendMessage(ChatServerThread talker, String message) {
try {
OutputStream out = socket.getOutputStream();
byte[] w = message.getBytes("UTF8");
out.write(w);
out.flush();
}
}
}
末奈旦毛�扴仄凶日﹜Java 失皿伉弗奈扑亦件午仄化灍俴仄化仁分今中﹝
公及摽﹜Android 失皿伉毛お�仄引允﹝
2.

HTTP 籵陓毛俴丹 Android 失皿伉

HTTP 籵陓及 GET/POST 丟末永玉毛俴勻化生永玄奻及ロ�毛桶尨允月失皿伉毛釬傖仄引允﹝
末奈旦戊奈玉
Eclipse 毛嶱中化﹜由永弗奈斥巨弁旦皿伕奈仿奈匹衵弁伉永弁仄﹜[陔�]->[Android 皿伕斥
尼弁玄]毛腢亼仄引允﹝
皿伕斥尼弁玄靡反
☆HttpEx★
午仄化仁分今中﹝
Target SDK 午 Compile
With 反 Android4.0(IceCreamSandwich)毛腢太引允﹝ActivityName 反☆HttpEx★午仄引
仄斤丹﹝
皿伕斥尼弁玄互釬傖堤懂凶日﹜src.com.example.httpex 白巧伙母及 HttpEx.java 白央奶伙
毛眕狟及方丹卞�摩仄化仁分今中﹝
引凶﹜AndroidManifest.xml 毛嶱五﹜
◇Permission◆正皮及笢及 Add 示正件毛弁伉永弁仄
化﹜
◇User Permission◆毛腢亼仄引允﹝Name 反◇android.permission.INTERNET◆毛腢
亼仄化仁分今中﹝
package com.example.httpex;

import java.io.ByteArrayOutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
public class HttpEx extends Activity implements View.OnClickListener{
private static final int WC = LinearLayout.LayoutParams.WRAP_CONTENT;
private static final int MP = LinearLayout.LayoutParams.MATCH_PARENT;
private EditTexteditText;
// 伉弁巨旦玄珂及 URL
private static final String URL = "http://httpserverex.herokuapp.com/hello";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
// 伊奶失它玄及汜傖
LinearLayout layout = new LinearLayout(this);
layout.setBackgroundColor(Color.rgb(255, 255, 255));

layout.setOrientation(LinearLayout.VERTICAL);
setContentView(layout);
// 巨犯奴永玄氾平旦玄及汜傖
editText = new EditText(this);
editText.setText("", EditText.BufferType.NORMAL);
editText.setLayoutParams(new


WC));
layout.addView(editText);
layout.addView(makeButton("HTTP 籵陓", "read"));
}
/**
* 示正件及汜傖
* @param text
* @param tag
* @return
*/
private Button makeButton(String text, String tag) {
Button button = new Button(this);
button.setText(text);
button.setTag(tag);
button.setOnClickListener(this);
button.setLayoutParams(new

LinearLayout.LayoutParams(WC,

WC));
return button;
}
@Override
public void onClick(View arg0) {
String tag = (String) arg0.getTag();
if (tag.equals("read")) {
Thread thread = new Thread(new Runnable() {
String text = null;

@Override
public void run() {
// HTTP 籵陓
try {
text

=

String(httpToData(URL));
text = null;
}
Handler handler = new Handler();
@Override
public void run() {
if (text != null) {
editText.setText(text, TextView.BufferType.EDITABLE);
} else {
HttpEx.showDialog(HttpEx.this, "巨仿奈", "掂心煋心卞囮㷍仄引仄凶");
}
}
});
}
});
thread.start();
}
}
public static byte[] httpToData(String path) throws Exception {
byte[] write = new byte[1024];
HttpURLConnection connection = null;
InputStream in = null;
ByteArrayOutputStream out = null;
try {
// HTTP 諉適及左奈皿件

new

URL url = new URL(path);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.connect();
in = connection.getInputStream();
out = new ByteArrayOutputStream();
int size;
while ((size = in.read(write)) > 0) {
out.write(write, 0, size);
}
out.close();
in.close();
connection.disconnect();
return out.toByteArray();
try {
if (connection != null) {
connection.disconnect();
}
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
} catch (Exception e2) {
}
throw e;
}
}
private static void showDialog(Context context, String title, String text) {
AlertDialog.Builder ad = new AlertDialog.Builder(context);
ad.setTitle(title);

ad.setMessage(text);
ad.setPositiveButton("OK", null);
ad.show();
}
}
末奈旦互�扴堤懂凶日﹜Android Application 午仄化灍俴仄化仁分今中﹝
ˉ栳�ˇ
GET 伉弁巨旦玄匹奻�及 URL 卞失弁本旦仄化中引允互﹜POST 蚚及示正件毛袚樓仄﹜公
及示正件毛弁伉永弁今木凶�磁反﹜POST 伉弁巨旦玄毛俴丹方丹卞党淏仄卅今中﹝
引凶﹜伉弁巨旦玄弁巨伉手袚樓匹冞陓堤懂月方丹卞党淏仄卅今中﹝

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生永玄伐奈弁菴5隙