支付宝集成

<pre name="code" class="java">为了方便以后自己的使用,也方便初学的小伙伴.尽量少走弯路.

<pre style="background-color:#2b2b2b;color:#a9b7c6;font-family:'Consolas';font-size:13.5pt;"><span style="color:#e8bf6a;"><activity
</span><span style="color:#e8bf6a;">    </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:name=</span><span style="color:#a5c261;">"com.alipay.sdk.app.H5PayActivity"
</span><span style="color:#a5c261;">    </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:configChanges=</span><span style="color:#a5c261;">"orientation|keyboardHidden|navigation"
</span><span style="color:#a5c261;">    </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:exported=</span><span style="color:#a5c261;">"false"
</span><span style="color:#a5c261;">    </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:screenOrientation=</span><span style="color:#a5c261;">"behind" </span><span style="color:#e8bf6a;">>
</span><span style="color:#e8bf6a;"></activity>
</span><span style="color:#e8bf6a;"><activity
</span><span style="color:#e8bf6a;">    </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:name=</span><span style="color:#a5c261;">"com.alipay.sdk.auth.AuthActivity"
</span><span style="color:#a5c261;">    </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:configChanges=</span><span style="color:#a5c261;">"orientation|keyboardHidden|navigation"
</span><span style="color:#a5c261;">    </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:exported=</span><span style="color:#a5c261;">"false"
</span><span style="color:#a5c261;">    </span><span style="color:#9876aa;">android</span><span style="color:#bababa;">:screenOrientation=</span><span style="color:#a5c261;">"behind" </span><span style="color:#e8bf6a;">>
</span><span style="color:#e8bf6a;"></activity></span>

 

  

   //权限的声明
  
  

   <uses-permission android:name=
   "android.permission.INTERNET" 
   />
  
  

   <uses-permission android:name=
   "android.permission.ACCESS_NETWORK_STATE" 
   />
  
  

   <uses-permission android:name=
   "android.permission.ACCESS_WIFI_STATE" 
   />
  
  

   <uses-permission android:name=
   "android.permission.READ_PHONE_STATE" 
   />
  
  

   <uses-permission android:name=
   "android.permission.WRITE_EXTERNAL_STORAGE" 
   />
  
 

以上个是写在AndroidMainfest中的 还有要将这个包导入到lib中 alipaySDK-20150602.jar(可以去官网下载)

 

</pre><pre name="code" class="java">//这段代码是在你获得到你所支付商品的所有信息,参数 之后调用.<pre name="code" class="java">payInfo 这个就是我所有的参数和信息. 是后台通过,公钥 和私钥 加密之后返回的.

其实这写数据,我们前端自己也可以做.但是防止别人反编译.所以最好是在后台经行处理.

"私钥"之所以称之为私钥,那就是不能被人看见的.<span style="font-family: Arial, Helvetica, sans-serif;">   </span>

<span style="font-family: Arial, Helvetica, sans-serif;"></span><pre name="code" class="java"> Runnable payRunnable = new Runnable() {
                                @Override
                                public void run() {
                                    // 构造PayTask 对象
                                    PayTask alipay = new PayTask(PayActivity.this);
                                    // 调用支付接口，获取支付结果
                                    String result = alipay.pay(payInfo);

                                    Message msg = new Message();
                                    msg.what = SDK_PAY_FLAG;
                                    msg.obj = result;
                                    mHandler.sendMessage(msg);
                                }
                            };
                            // 必须异步调用
                            Thread payThread = new Thread(payRunnable);
                            payThread.start();

<a target=_blank href="https://doc.open.alipay.com/doc2/detail.htm?spm=a219a.7629140.0.0.sGrKnJ&treeId=59&articleId=103662&docType=1">点击打开链接</a>(这是官网对参数的说明)

之后我们还需要些一个handler 来判断他返回的状态 是否是支付成功 或者失败

<pre name="code" class="java">private Handler mHandler = new Handler() {
    public void handleMessage(Message msg) {
        switch (msg.what) {
            case SDK_PAY_FLAG: {
                PayResult payResult = new PayResult((String) msg.obj);

                // 支付宝返回此次支付结果及加签，建议对支付宝签名信息拿签约时支付宝提供的公钥做验签
                String resultInfo = payResult.getResult();

                String resultStatus = payResult.getResultStatus();

                // 判断resultStatus 为“9000”则代表支付成功，具体状态码代表含义可参考接口文档
                if (TextUtils.equals(resultStatus, "9000")) {
                    Toast.makeText(PayActivity.this, "支付成功", Toast.LENGTH_SHORT)
                            .show();  
            	}
		break;
            case SDK_CHECK_FLAG: {
                if ((msg.obj).equals(true)) {
                    Toast.makeText(PayActivity.this, "检查结果为：" + "有可用账户",
                            Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(PayActivity.this, "检查结果为：" + "无可用账户",
                            Toast.LENGTH_SHORT).show();
                }

                break;
            }
            default:
                break;
        }
    }
};

调用这些就可以实现了.

在说一下我当初遇到的疑问.

1.当没有支付宝的时候它会自动调取网页的.有支付宝,他会自动调用支付宝的支付界面.

2.之前我是自己给数据加密.然后获得了 订单的参数.<span style="font-family: Arial, Helvetica, sans-serif;">payInfo .当时是自己拼接的.在它官方的demo里面有自己拼接的写法.</span>

<span style="font-family: Arial, Helvetica, sans-serif;">其实自己在本地存储公钥和私钥是不对的.容易让别人反编译.从而获得到你们自己公司支付宝的 私钥. </span>

<span style="font-family: Arial, Helvetica, sans-serif;">****所以建议最好这些参数都是后台用公钥和私钥做处理之后返回.****</span>

如果还有不懂得 .其实直接下载官方的DEMO 就可以.里面是很全面的.而且里面也有混淆.下面的是官方demo的链接

点击打开链接