Android-银联支付开发

银联支付也是一般比较常用的支付功能,这里简单了介绍android app如果短期快速应用这一方面的东西。直接上代码：

1.导入银联支付的依赖包:

2.在res目录下增加资源包:

3.配置AndroidManifest.xml文件配置打开的activity:

 <activity
             android:name="com.unionpay.uppay.PayActivity"
             android:configChanges="orientation|keyboardHidden"
             android:excludeFromRecents="true"
             android:label="@string/app_name"
             android:screenOrientation="portrait"
             android:windowSoftInputMode="adjustResize" />

至此,我们的项目环境就搭好了.(以上资料文件,请查看银联测试文档 目录的androiddemo);

银联支付代码3步骤：

1.获取TN号  2.请求控件界面（PayActivity）   

3.ActivityResult处理支付结果（但该结果并不一定正确 ，因为银联系统通过异步返回给服务器和我们的app是同时异步的）

以下 我以测试接口为例

 /**
  *      UnionPay Test
  *
  *  @author Lean  @date:2014-8-8
  */
 public class MainActivity extends Activity implements Runnable {

     private String mMode = "01";//设置测试模式:01为测试 00为正式环境
     private static final String TN_URL_01 = "http://202.101.25.178:8080/sim/gettn";//自己后台需要实现的给予我们app的tn号接口

     private Handler mHandler=new Handler(){

         public void handleMessage(android.os.Message msg) {

             String tn = "";
             if (msg.obj == null || ((String) msg.obj).length() == 0) {
                 AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
                 builder.setTitle("错误提示");
                 builder.setMessage("网络连接失败,请重试!");
                 builder.setNegativeButton("确定",
                         new DialogInterface.OnClickListener() {
                             @Override
                             public void onClick(DialogInterface dialog, int which) {
                                 dialog.dismiss();
                             }
                         });
                 builder.create().show();
             } else {
                 tn = (String) msg.obj;
                 doStartUnionPayPlugin(MainActivity.this, tn, mMode);
             }
         }
     };

     /**
      *  启动支付界面
      */
     public void doStartUnionPayPlugin(Activity activity, String tn, String mode) {
         UPPayAssistEx.startPayByJAR(activity, PayActivity.class, null, null,
                 tn, mode);
     }


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

         new Thread(MainActivity.this).start();

     }


     @Override
     public void run() {
         String tn = null;
         InputStream is;
         try {

             String url = TN_URL_01;

             URL myURL = new URL(url);
             URLConnection ucon = myURL.openConnection();
             ucon.setConnectTimeout(120000);
             is = ucon.getInputStream();
             int i = -1;
             ByteArrayOutputStream baos = new ByteArrayOutputStream();
             while ((i = is.read()) != -1) {
                 baos.write(i);
             }

             tn = baos.toString();
             is.close();
             baos.close();
         } catch (Exception e) {
             e.printStackTrace();
         }

         Message msg = mHandler.obtainMessage();
         msg.obj = tn;
         mHandler.sendMessage(msg);
     }

     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         if (data == null) {
             return;
         }
         String msg = "";
         /*
          * 支付控件返回字符串:success、fail、cancel 分别代表支付成功，支付失败，支付取消
          */
         String str = data.getExtras().getString("pay_result");
         Log.v("zftphone", "2 "+data.getExtras().getString("merchantOrderId"));
         if (str.equalsIgnoreCase("success")) {
             msg = "支付成功！";

         } else if (str.equalsIgnoreCase("fail")) {
             msg = "支付失败！";

         } else if (str.equalsIgnoreCase("cancel")) {

             msg = "用户取消了支付";
         }
         //支付完成,处理自己的业务逻辑!
     }

 }

Tip:做这个的时候，你要保证你有个牛比的支持团队能够接受新事物，同时谴责下银联的客服 太垃圾了说！