namespace API\Controller; use Think\Controller;

<?php namespace API\Controller; use Think\Controller; class ServerController extends Controller { public function index(){ //$this->show('<style type="text/css">*{ padding: 0; margin: 0; } div{ padding: 4px 48px;} body{ background: #fff; font-family: "寰蒋闆呴粦"; color: #333;font-size:24px} h1{ font-size: 100px; font-weight: normal; margin-bottom: 12px; } p{ line-height: 1.8em; font-size: 36px }</style><div style="padding: 24px 48px;"> <h1>:)</h1><p>娆㈣繋浣跨敤 <b>ThinkPHP</b>锛?/p><br/>[ 鎮ㄧ幇鍦ㄨ闂殑鏄疕ome妯″潡鐨処ndex鎺у埗鍣?]</div><script type="text/javascript" src="http://tajs.qq.com/stats?sId=9347272" charset="UTF-8"></script>','utf-8'); echo "hello"; } function updateInfo(){ $result=array( 'version'=>'1.0', 'description'=>'目前已经更新了卡屏功能', 'url'=>'http://localhost/index.php/API/Server/download' ); echo json_encode($result); } function download(){ $file = "/tmp/test.apk"; $filename = basename($file);//返回路径中的文件名部分。 /* * header() 函数向客户端发送原始的 HTTP 报头。 * 必须在任何实际的输出被发送之前调用 header() 函数 * */ header("Content-type: application/octet-stream"); //处理中文文件名 $ua = $_SERVER["HTTP_USER_AGENT"]; $encoded_filename = rawurlencode($filename); if (preg_match("/MSIE/", $ua)) { header('Content-Disposition: attachment; filename="' . $encoded_filename . '"'); } else if (preg_match("/Firefox/", $ua)) { header("Content-Disposition: attachment; filename*=\"utf8''" . $filename . '"'); } else { header('Content-Disposition: attachment; filename="' . $filename . '"'); } header("Content-Length: ". filesize($file)); /* * readfile() 函数输出一个文件。 * 该函数读入一个文件并写入到输出缓冲。 * 若成功，则返回从文件中读入的字节数。若失败，则返回 false。 */ ob_clean(); flush(); readfile($file); } } 

 

 

这里需要解释的是

function updateInfo()

这个方法实现的是获得最近的版本信息。然后和移动端进行匹配

URL地址是:http://localhost/index.php/API/Server/updateinfo,大家可以根据自己的服务器或者云服务器的IP地址进行修改。

 

function download(){

这个方法实现的是下载功能，也就是核心方法。移动端需要访问到这个IP地址才能进行文件的下载。

URL地址是:http://localhost/index.php/API/Server/download,大家可以根据自己的服务器或者云服务器的IP地址进行修改。

 

关于需要下载的文件路径，我是存放在ubuntu系统的/tmp目录下的

 

android移动端实现

 

移动端我直接给出了实现放的类和方法以及活动，就不解释了。

只给出基本的原理

1、从这个URL地址http://localhost/index.php/API/Server/updateinfo获取最新的版本信息，通过http协议和json协议解析出基本的版本信息，然后存储在UpdateInfo类中，然后和APP的当前版本进行比较，如果有最新版则下载。

2、关于下载，android端的核心实现代码是

new Thread() { public void run() { HttpClient client = new DefaultHttpClient(); HttpGet get = new HttpGet(url); HttpResponse response; try { response = client.execute(get); HttpEntity entity = response.getEntity(); int length = (int) entity.getContentLength(); progressDialog.setMax(length); InputStream is = entity.getContent(); FileOutputStream fileOutputStream = null; if (is != null) { File file = new File( Environment.getExternalStorageDirectory(), "Test.apk"); fileOutputStream = new FileOutputStream(file); byte[] buf = new byte[10]; int ch = -1; int process = 0; while ((ch = is.read(buf)) != -1) { fileOutputStream.write(buf, 0, ch); process += ch; progressDialog.setProgress(process); } } fileOutputStream.flush(); if (fileOutputStream != null) { fileOutputStream.close(); } down(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }.start();

而PHP的实现代码是download中的

ob_clean(); flush(); readfile($file);

至于底层的原理是，readfile方法封装了，http文件传输的基本实现，大家可以百度下，以上两段代码配合，一个客户端，一个服务器，就能够实现基于http文件的传输.

 

最后给出android端的代码

 

 

import android.annotation.SuppressLint; import android.app.Activity; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.DialogInterface; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; import com.example.administrator.dongzhiwuapp.R; public class SetActivity extends Activity { private UpdateInfo info; private ProgressDialog progressDialog;//下载进度条窗口 UpdateInfoService updateInfoService; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.update); Button button=(Button)findViewById(R.id.button1); button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { checkUpdate(); } }); } private void checkUpdate(){ new Thread() { public void run() { try { updateInfoService = new UpdateInfoService(SetActivity.this); info = updateInfoService.getUpDateInfo(); handler1.sendEmptyMessage(0); } catch (Exception e) { e.printStackTrace(); } }; }.start(); } @SuppressLint("HandlerLeak") private Handler handler1 = new Handler() { public void handleMessage(Message msg) { if (updateInfoService.isNeedUpdate()) { showUpdateDialog(); } } }; private void showUpdateDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setIcon(android.R.drawable.ic_dialog_info); builder.setTitle("请升级APP版本至" + info.getVersion()); builder.setMessage(info.getDescription()); builder.setCancelable(false); builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { downFile(info.getUrl()); } else { Toast.makeText(SetActivity.this, "SD卡不可用，请插入SD卡", Toast.LENGTH_SHORT).show(); } } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); builder.create().show(); } //进入下载 void downFile(final String url) { progressDialog = new ProgressDialog(SetActivity.this); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setTitle("正在下载"); progressDialog.setMessage("请稍后..."); progressDialog.setProgress(0); progressDialog.show(); updateInfoService.downLoadFile(url, progressDialog,handler1); } }

 

 

 

import android.annotation.SuppressLint; import android.app.Activity; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.DialogInterface; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; import com.example.administrator.dongzhiwuapp.R; public class SetActivity extends Activity { private UpdateInfo info; private ProgressDialog progressDialog;//下载进度条窗口 UpdateInfoService updateInfoService; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.update); Button button=(Button)findViewById(R.id.button1); button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { checkUpdate(); } }); } private void checkUpdate(){ new Thread() { public void run() { try { updateInfoService = new UpdateInfoService(SetActivity.this); info = updateInfoService.getUpDateInfo(); handler1.sendEmptyMessage(0); } catch (Exception e) { e.printStackTrace(); } }; }.start(); } @SuppressLint("HandlerLeak") private Handler handler1 = new Handler() { public void handleMessage(Message msg) { if (updateInfoService.isNeedUpdate()) { showUpdateDialog(); } } }; private void showUpdateDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setIcon(android.R.drawable.ic_dialog_info); builder.setTitle("请升级APP版本至" + info.getVersion()); builder.setMessage(info.getDescription()); builder.setCancelable(false); builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { downFile(info.getUrl()); } else { Toast.makeText(SetActivity.this, "SD卡不可用，请插入SD卡", Toast.LENGTH_SHORT).show(); } } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); builder.create().show(); } //进入下载 void downFile(final String url) { progressDialog = new ProgressDialog(SetActivity.this); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setTitle("正在下载"); progressDialog.setMessage("请稍后..."); progressDialog.setProgress(0); progressDialog.show(); updateInfoService.downLoadFile(url, progressDialog,handler1); } }

/**  * 获取服务器地址  */  public class GetServerUrl{ static String url="http://"; public static String getUrl() { return url; } }

/* * * 版本更新信息类 * 1、获取版本字符串信息 * 2、设置版本字符串信息 * 3、获取版本描述 * 4、设置版本描述 * 5、获取URL地址 * 6、设置URL地址 * */ public class UpdateInfo { private String version; private String description; private String url; public String getVersion() { return version; } public void setVersion(String version) { this.version = version; } public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } public String getUrl() { return url; } public void setUrl(String url) { this.url = url; } }

 

 

import android.app.ProgressDialog; import android.content.Context; import android.content.Intent; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.net.Uri; import android.os.Environment; import android.os.Handler; import android.util.Log; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import org.json.JSONObject; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; public class UpdateInfoService { ProgressDialog progressDialog; Handler handler; Context context; UpdateInfo updateInfo; public UpdateInfoService(Context context){ this.context=context; } /* * 获取更新信息 * 版本信息存储在服务器的update.txt文件中 * 更新信息包括: * 1、版本信息 * 2、最新版本具体描述 * 3、下载地址 * * */ public UpdateInfo getUpDateInfo() throws Exception { HttpClient httpClient = new DefaultHttpClient(); HttpGet httpGet = new HttpGet("http://localhost/index.php/API/Server/updateInfo"); HttpResponse httpResponse = httpClient.execute(httpGet); UpdateInfo updateInfo = new UpdateInfo(); if (httpResponse.getStatusLine().getStatusCode() == 200)//请求相应成功 { HttpEntity entity = httpResponse.getEntity(); String response = EntityUtils.toString(entity, "utf-8"); JSONObject jsonObject=new JSONObject(response); Log.d("dsdsada", "getUpDateInfo: "+response); updateInfo.setVersion(jsonObject.getString("version")); updateInfo.setDescription(jsonObject.getString("description")); updateInfo.setUrl(jsonObject.getString("url")); this.updateInfo = updateInfo; return updateInfo; } updateInfo.setVersion(""); updateInfo.setDescription(""); updateInfo.setUrl(""); this.updateInfo = updateInfo; return updateInfo; } /* *判断是否需要更新 */ public boolean isNeedUpdate(){ String new_version = updateInfo.getVersion(); String now_version=""; try { PackageManager packageManager = context.getPackageManager(); PackageInfo packageInfo = packageManager.getPackageInfo( context.getPackageName(), 0); now_version= packageInfo.versionName; } catch (NameNotFoundException e) { e.printStackTrace(); } if (new_version.equals(now_version)) { return false; } else { return true; } } /* * * 下载文件 * */ public void downLoadFile(final String url,final ProgressDialog pDialog,Handler h){ progressDialog=pDialog; handler=h; new Thread() { public void run() { HttpClient client = new DefaultHttpClient(); HttpGet get = new HttpGet(url); HttpResponse response; try { response = client.execute(get); HttpEntity entity = response.getEntity(); int length = (int) entity.getContentLength(); progressDialog.setMax(length); InputStream is = entity.getContent(); FileOutputStream fileOutputStream = null; if (is != null) { File file = new File( Environment.getExternalStorageDirectory(), "Test.apk"); fileOutputStream = new FileOutputStream(file); byte[] buf = new byte[10]; int ch = -1; int process = 0; while ((ch = is.read(buf)) != -1) { fileOutputStream.write(buf, 0, ch); process += ch; progressDialog.setProgress(process); } } fileOutputStream.flush(); if (fileOutputStream != null) { fileOutputStream.close(); } down(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }.start(); } //下载完毕，退出下载，进入安装APP步骤 void down() { handler.post(new Runnable() { public void run() { progressDialog.cancel(); update(); } }); } //安装最新版本APP void update() { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(new File(Environment .getExternalStorageDirectory(), "Test.apk")), "application/vnd.android.package-archive"); context.startActivity(intent); } } 

 

github项目地址:https://github.com/huanghuaisong/android-php-appUpdate/

原文地址 http://www.bieryun.com/2558.html