Android查询QQ是否在线
这个小程序的主要原理是通过HTTP协议发送XML数据并调用webservice,分析返回的数据来进行Android查询QQ是否在线。
StreamTool.java:
Web Service(WEB服务)能够快捷和方便地综合并结合各种系统、商务和任何应用平台。新出现的 Web Services 标准: SOAP、WSDL 和 UDDI 能够使任何系统和系统之间的应用变为更加方便和廉价。
Web服务(Web Services)和Service—Oriented Architecture作为实现分布式系统和履行公司内部、公司之间的应用整合的技术和架构出现。SOA和Web服务的体系结构是两个不同层面的问题,前者是概念模式,面向商业应用;后者则是实现模式,面向技术框架。
面向服务的体系结构所表示的是一个概念上的模型,在这个模型中,松散耦合的应用在网络上被描述、发布和调用。而Web服务则是一组由协议构成的协议栈所定义的框架结构,它定义了在不同的系统之间通信松散耦合的编程框架。也可以认为,Web服务体系结构实际上是面向服务的体系结构的一个特定实现;面向服务的体系结构作为一个概念上的模型,将网络、传输协议以及安全等具体的细节都遗留给特定的实现。Web服务中的SOAP,WSDL等都是具体实现细节的标准。
第一步:新建一个Android工程命名为QQStatus目录结构如下图:
首先写出布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="@string/qq"
android:textSize="15sp" />
<EditText
android:id="@+id/et_qq_code"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:inputType="number"
android:singleLine="true"
android:text="@string/code" />
<Button
android:id="@+id/btn_check_online"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="@string/check_online" />
<TextView
android:id="@+id/tv_result"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:textSize="15sp" />
</LinearLayout>
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="@string/qq"
android:textSize="15sp" />
<EditText
android:id="@+id/et_qq_code"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:inputType="number"
android:singleLine="true"
android:text="@string/code" />
<Button
android:id="@+id/btn_check_online"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="@string/check_online" />
<TextView
android:id="@+id/tv_result"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:textSize="15sp" />
</LinearLayout>
然后建立web服务的xml,qqstatus.xml
<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
<soap12:Body>
<qqCheckOnline xmlns="http://WebXml.com.cn/">
<qqCode>$qq</qqCode>
</qqCheckOnline>
<soap12:Body>
<qqCheckOnline xmlns="http://WebXml.com.cn/">
<qqCode>$qq</qqCode>
</qqCheckOnline>
</soap12:Body>
</soap12:Envelope>
</soap12:Envelope>
Service方法:
package com.gaolei.qqstatus.service;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import org.xmlpull.v1.XmlPullParser;
import android.util.Xml;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import org.xmlpull.v1.XmlPullParser;
import android.util.Xml;
import com.gaolei.qqstatus.util.StreamTool;
public class QQService {
/**
* 获取QQ状态
public class QQService {
/**
* 获取QQ状态
* http://webservice.webxml.com.cn/webservices/qqOnlineWebService.asmx?op=qqCheckOnline
* @param qq QQ号码 Y = 在线;N = 离线;E = QQ号码错误;A = 商业用户验证失败;V = 免费用户超过数量
* @return
* @throws Exception
*/
public static String getQQStatus(String qq) throws Exception {
InputStream inputStream = QQService.class.getClassLoader()
.getResourceAsStream("qqstatus.xml");
byte[] data = StreamTool.readInputStream(inputStream);
String xml = new String(data, "UTF-8");
String soapEntity = xml.replaceAll("\\$qq", qq);
data = soapEntity.getBytes();
String path = "http://webservice.webxml.com.cn/webservices/qqOnlineWebService.asmx";
URL url = new URL(path);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setConnectTimeout(5000);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type",
"application/soap+xml;charset=utf-8");
conn.setRequestProperty("Content-Length", String.valueOf(data.length));
OutputStream outputStream = conn.getOutputStream();
outputStream.write(data);
outputStream.flush();
outputStream.close();
if (conn.getResponseCode() == 200) {
InputStream responseStream = conn.getInputStream();
return parseXml(responseStream);
}
return null;
}
/**
* 解析XML
* @param responseStream 输入流
* @return
* @throws Exception
*/
private static String parseXml(InputStream responseStream) throws Exception {
XmlPullParser parser = Xml.newPullParser();
parser.setInput(responseStream, "UTF-8");
int event = parser.getEventType();
while (event != XmlPullParser.END_DOCUMENT) {
switch (event) {
case XmlPullParser.START_TAG:
if ("qqCheckOnlineResult".equals(parser.getName())) {
return parser.nextText();
}
break;
}
event = parser.next();
}
return null;
}
}
* @param qq QQ号码 Y = 在线;N = 离线;E = QQ号码错误;A = 商业用户验证失败;V = 免费用户超过数量
* @return
* @throws Exception
*/
public static String getQQStatus(String qq) throws Exception {
InputStream inputStream = QQService.class.getClassLoader()
.getResourceAsStream("qqstatus.xml");
byte[] data = StreamTool.readInputStream(inputStream);
String xml = new String(data, "UTF-8");
String soapEntity = xml.replaceAll("\\$qq", qq);
data = soapEntity.getBytes();
String path = "http://webservice.webxml.com.cn/webservices/qqOnlineWebService.asmx";
URL url = new URL(path);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setConnectTimeout(5000);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type",
"application/soap+xml;charset=utf-8");
conn.setRequestProperty("Content-Length", String.valueOf(data.length));
OutputStream outputStream = conn.getOutputStream();
outputStream.write(data);
outputStream.flush();
outputStream.close();
if (conn.getResponseCode() == 200) {
InputStream responseStream = conn.getInputStream();
return parseXml(responseStream);
}
return null;
}
/**
* 解析XML
* @param responseStream 输入流
* @return
* @throws Exception
*/
private static String parseXml(InputStream responseStream) throws Exception {
XmlPullParser parser = Xml.newPullParser();
parser.setInput(responseStream, "UTF-8");
int event = parser.getEventType();
while (event != XmlPullParser.END_DOCUMENT) {
switch (event) {
case XmlPullParser.START_TAG:
if ("qqCheckOnlineResult".equals(parser.getName())) {
return parser.nextText();
}
break;
}
event = parser.next();
}
return null;
}
}
StreamTool.java:
package com.gaolei.qqstatus.util;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
public class StreamTool {
/**
* 读取输入流数据
* @param inputStream
* @return
* @throws Exception
*/
public static byte[] readInputStream(InputStream inputStream)
throws Exception {
ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = -1;
while ((len = inputStream.read(buffer)) != -1) {
outSteam.write(buffer, 0, len);
}
outSteam.close();
inputStream.close();
return outSteam.toByteArray();
}
}
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
public class StreamTool {
/**
* 读取输入流数据
* @param inputStream
* @return
* @throws Exception
*/
public static byte[] readInputStream(InputStream inputStream)
throws Exception {
ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = -1;
while ((len = inputStream.read(buffer)) != -1) {
outSteam.write(buffer, 0, len);
}
outSteam.close();
inputStream.close();
return outSteam.toByteArray();
}
}
Activity:
package com.gaolei.qqstatus.activity;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.gaolei.qqstatus.R;
import com.gaolei.qqstatus.service.QQService;
public class MainActivity extends Activity implements OnClickListener {
private static final String TAG = "MainActivity";
private Button mCheckOnlineButton;
private EditText mQQCodeEditText;
private TextView mResultTextView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViews();
bindViews();
}
private void findViews() {
mCheckOnlineButton = (Button) findViewById(R.id.btn_check_online);
mQQCodeEditText = (EditText) findViewById(R.id.et_qq_code);
mResultTextView = (TextView) findViewById(R.id.tv_result);
}
private void bindViews() {
mCheckOnlineButton.setOnClickListener(this);
}
@Override
public void onClick(View v) {
String qqCode = mQQCodeEditText.getText().toString().trim();
if (!"".equals(qqCode)) {
try {
String result = QQService.getQQStatus(qqCode);
Log.i(TAG, result);
if (result.equals("Y")) {
mResultTextView.setText("在线");
} else if (result.equals("N")) {
mResultTextView.setText("不在线");
}
} catch (Exception e) {
Log.e(TAG, e.toString());
Toast.makeText(MainActivity.this, R.string.error,
Toast.LENGTH_LONG).show();
}
}
}
}
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.gaolei.qqstatus.R;
import com.gaolei.qqstatus.service.QQService;
public class MainActivity extends Activity implements OnClickListener {
private static final String TAG = "MainActivity";
private Button mCheckOnlineButton;
private EditText mQQCodeEditText;
private TextView mResultTextView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViews();
bindViews();
}
private void findViews() {
mCheckOnlineButton = (Button) findViewById(R.id.btn_check_online);
mQQCodeEditText = (EditText) findViewById(R.id.et_qq_code);
mResultTextView = (TextView) findViewById(R.id.tv_result);
}
private void bindViews() {
mCheckOnlineButton.setOnClickListener(this);
}
@Override
public void onClick(View v) {
String qqCode = mQQCodeEditText.getText().toString().trim();
if (!"".equals(qqCode)) {
try {
String result = QQService.getQQStatus(qqCode);
Log.i(TAG, result);
if (result.equals("Y")) {
mResultTextView.setText("在线");
} else if (result.equals("N")) {
mResultTextView.setText("不在线");
}
} catch (Exception e) {
Log.e(TAG, e.toString());
Toast.makeText(MainActivity.this, R.string.error,
Toast.LENGTH_LONG).show();
}
}
}
}
修改AndroidManifest.xml文件,添加访问网络权限:
strings.xml:
<uses-permission android:name="android.permission.INTERNET" />
strings.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">QQ在线查询器</string>
<string name="qq">QQ号码</string>
<string name="code">423536390</string>
<string name="check_online">查询状态</string>
<string name="error">获取状态失败!</string>
</resources>
<resources>
<string name="app_name">QQ在线查询器</string>
<string name="qq">QQ号码</string>
<string name="code">423536390</string>
<string name="check_online">查询状态</string>
<string name="error">获取状态失败!</string>
</resources>
posted on 2013-04-02 14:26 aiyuaichou 阅读(434) 评论(0) 编辑 收藏 举报