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資源簡介

掃描二維碼登錄的實現機制

 * Android客戶端要給網頁端發送信息，說登錄的是我

 * 網頁登錄界面要不斷的查詢是否已經被掃描登錄

總體分三步：

① PC端保存randnumber（隨機數）

② Android客戶端攜帶username 保存在randnumber那條記錄上

③ PC端去服務器輪詢，如果randnumber記錄的username不為空，則實行登錄即可

資源截圖

代碼片段和文件信息 

package?com.jikexueyuan.qrlogin;

import?com.zxing.activity.CaptureActivity;

import?android.app.Activity;
import?android.content.Intent;
import?android.graphics.Paint.Cap;
import?android.os.Bundle;
import?android.view.View;
import?android.view.View.onclickListener;
import?android.widget.Button;
import?android.widget.EditText;
import?android.widget.Toast;

public?class?MainActivity?extends?Activity?implements?onclickListener?{

	private?Button?btnScan;
	private?EditText?etUsername;

	private?static?final?String?WEB_URL?=?“http://172.31.19.202/QRLogin/“;

	@Override
	protected?void?onCreate（Bundle?savedInstanceState）?{
		super.onCreate（savedInstanceState）;
		setContentView（R.layout.activity_main）;

		btnScan?=?（Button）?findViewById（R.id.btnScan）;
		btnScan.setOnCl

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-08-14?20:22??BarCodeLibrary\
?????文件?????????528??2015-08-14?20:22??BarCodeLibrary\.classpath
?????文件?????????814??2012-08-05?11:11??BarCodeLibrary\.project
?????目錄???????????0??2015-08-14?20:22??BarCodeLibrary\.settings\
?????文件?????????173??2014-07-11?11:52??BarCodeLibrary\.settings\org.eclipse.jdt.core.prefs
?????文件????????1338??2012-08-05?11:29??BarCodeLibrary\AndroidManifest.xml
?????目錄???????????0??2012-08-05?11:11??BarCodeLibrary\assets\
?????目錄???????????0??2015-08-14?20:22??BarCodeLibrary\bin\
?????文件????????1338??2015-08-14?20:22??BarCodeLibrary\bin\AndroidManifest.xml
?????文件??????194560??2012-08-05?12:28??BarCodeLibrary\bin\BarCodeTest.apk
?????文件???????41497??2015-08-14?20:50??BarCodeLibrary\bin\barcodetest.jar
?????目錄???????????0??2015-08-14?20:22??BarCodeLibrary\bin\classes\
?????文件??????348412??2012-08-05?12:28??BarCodeLibrary\bin\classes.dex
?????目錄???????????0??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\
?????目錄???????????0??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\ericssonlabs\
?????文件????????1080??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\ericssonlabs\BarCodeTestActivity$1.class
?????文件????????1941??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\ericssonlabs\BarCodeTestActivity$2.class
?????文件????????2536??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\ericssonlabs\BarCodeTestActivity.class
?????文件?????????341??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\ericssonlabs\BuildConfig.class
?????文件?????????334??2015-08-14?20:50??BarCodeLibrary\bin\classes\com\ericssonlabs\R$attr.class
?????文件????????1696??2015-08-14?20:50??BarCodeLibrary\bin\classes\com\ericssonlabs\R$color.class
?????文件?????????491??2015-08-14?20:50??BarCodeLibrary\bin\classes\com\ericssonlabs\R$drawable.class
?????文件????????1383??2015-08-14?20:50??BarCodeLibrary\bin\classes\com\ericssonlabs\R$id.class
?????文件?????????478??2015-08-14?20:50??BarCodeLibrary\bin\classes\com\ericssonlabs\R$layout.class
?????文件?????????479??2015-08-14?20:50??BarCodeLibrary\bin\classes\com\ericssonlabs\R$raw.class
?????文件?????????481??2015-08-14?20:50??BarCodeLibrary\bin\classes\com\ericssonlabs\R$string.class
?????文件?????????605??2015-08-14?20:50??BarCodeLibrary\bin\classes\com\ericssonlabs\R.class
?????目錄???????????0??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\zxing\
?????目錄???????????0??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\zxing\activity\
?????文件?????????838??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\zxing\activity\CaptureActivity$1.class
?????文件?????????792??2015-08-14?20:22??BarCodeLibrary\bin\classes\com\zxing\activity\CaptureActivity$2.class
............此處省略200個文件信息

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