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java 反射调用支付SDK

时间:2015-11-18 18:05:42      阅读:247      评论:0      收藏:0      [点我收藏+]

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在android开发中会遇到各种SDK的接入,很是麻烦。最初在想能不能把所有的SDK都 融合到一个当中,发现有点异想天开。但是也可以解决SDK资源不小心没有引入,导致程序调用接口崩溃问题。经过查资料,还是写了一个小Demo,仅供参 考!很早之前写的了,估计移动基地SDK,有变动,不过道理是一样的。

仅以移动基地SDK举例。

1.移动支付需要的SO文件导入

    public class CarrotApplication extends Application {  
        //是否含有移动支付SDK  
        boolean useCMBilling = false;  
        @Override  
        public void onCreate() {  
            // TODO Auto-generated method stub  
            try {  
                Class.forName("cn.cmgame.billing.api.GameInterface");  
                useCMBilling = true;  
            } catch (ClassNotFoundException ignored) {  
      
            }  
            if(useCMBilling){  
                System.loadLibrary("megjb");  
            }  
        }  
    }  

2.初始化移动基地支付

 

protected void init_cmcc(String app_name, String app_company,  
            String telphone_number) {  
        try {  
            Object [] cmcc_init_obj = {CarrotPaySDK.mContext,app_name,app_company,telphone_number};  
            Class<?> [] classparam = {Activity.class,String.class,String.class,String.class};  
            cfcaim.invokeStaticMethod("cn.cmgame.billing.api.GameInterface","initializeApp",cmcc_init_obj,classparam);  
        } catch (Exception e) {  
            // TODO: handle exception  
            Log.e("init_cmcc异常捕捉", "异常:"+e.toString());  
        }  
    } 

 

3.上面 invokeStaticMethod 的实现

 

    /** 
         * 执行某个类的静态方法 
         * @param   className       类名 
         * @param   methodName      方法名 
         * @param   oArray          方法参数 
         * @param   paramTypeArray      构造参数类型 
         * @author liudb 
         * */  
        public Object invokeStaticMethod(String className, String methodName,  
                Object[] oArray,Class<?> [] paramTypeArray) throws Exception {  
            Class<?> ownerClass = Class.forName(className);  
            Method method = ownerClass.getMethod(methodName, paramTypeArray);  
            return method.invoke(ownerClass, oArray);  
        }  

 

4.调用支付接口

 

/** 
     * 执行移动支付 
     * @param       isUsesim        sim卡是否可用 
     * @param       isRepeat        计费点是否可重复 
     * @param       index           计费点编号 
     * @param       order           订单号 
     * @param       callback        支付回调 
     */  
    protected void cmcc_pay(boolean isUsesim,boolean isRepeat,String index,String order,final CarrotPayCallBack callback){  
        try {  
            //这里的 callback  是自定义的回调函数,会在步骤7里介绍  
                        cmcc_PayendHandler = new CarrotHandler(CarrotPaySDK.mContext){  
                @Override  
                public void handleMessage(Message msg) {  
                    // TODO Auto-generated method stub  
                    super.handleMessage(msg);  
                                        //这里处理返回结果  
                                        callback.onPayEnd(msg.what);  
                }  
            };  
            // 传入参数  
            Object [] cmcc_pay_param = {CarrotPaySDK.mContext,isUsesim,isRepeat,index,order,new Object()};  
            // 参数对应的TYPE  
            Class<?> [] cmcc_pay_paramtyp = {Context.class,boolean.class,boolean.class,String.class,String.class,Object.class};  
            // "IPayCallback" 是移动支付的回调函数名  
            cfcaim.invokeContainsInterfaceStaticMethod("cn.cmgame.billing.api.GameInterface", "doBilling", cmcc_pay_param,cmcc_pay_paramtyp,"IPayCallback",CarrotPaySdkFinal.CMCC_PAY);  
        } catch (Exception e) {  
            // TODO: handle exception  
            Log.e("cmcc_pay异常捕捉", "异常:"+e.toString());  
        }  
    }

 

5.重点就是上面 invokeContainsInterfaceStaticMethod 方法的实现

 

    /** 
         * 执行包含接口的静态方法 
         * @param   className       类名 
         * @param   methodName      方法名 
         * @param   oArray          具体参数 
         * @param   paramTypeArray      构造参数类型 
         * @param   interfaceName   接口名 
         * @author liudb 
         * */  
        public Object invokeContainsInterfaceStaticMethod(String className, String methodName,  
                Object[] oArray,Class<?> [] paramTypeArray,String interfaceName,CarrotPaySdkFinal payType) throws Exception {  
            Class<?> ownerClass = Class.forName(className);  
      
            Class<?>[] argsClass = new Class[oArray.length];  
            Method [] ms = ownerClass.getDeclaredMethods();  
            for (int i = 0, j = oArray.length; i < j; i++) {  
                argsClass[i] = oArray[i].getClass();  
            }  
            Method method = findMethod(ms, methodName, paramTypeArray, interfaceName);  
            Class<?> clazz = Class.forName(othre_callBack.getName());  
            //因为接口的最后一个参数是回调函数,所以要设置监测回调  
            oArray[oArray.length -1] = Proxy.newProxyInstance(  
                    clazz.getClassLoader(),  
                    new Class[]{clazz},  
                    new CarrotPayCallbackMethodInterceptor(payType));  
            othre_callBack = null;  
            return method.invoke(ownerClass, oArray);  
        }  

 

6.还有如何捕获回调的接口返回的参数 CarrotPayCallbackMethodInterceptor 类的实现

 

    public class CarrotPayCallbackMethodInterceptor implements InvocationHandler {  
        CarrotPaySdkFinal csf;  
        public CarrotPayCallbackMethodInterceptor (CarrotPaySdkFinal paytype){  
            csf = paytype;  
        }  
        @Override  
        public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {  
            // TODO Auto-generated method stub  
            switch (csf) {  
            case CMCC_PAY:  
                    //在这里获得回调函数返回的参数,通过自定义carrotSdkHelper发送给callback处理返回结果  
                              for(int j = 0; j < args.length;j++){  
                    if(args[j].getClass().getName().equalsIgnoreCase("java.lang.Integer")){  
                        Integer result = (Integer)args[j];  
                        switch (result) {  
                        case 1:  
                            Message msg_cmcc_success = new Message();  
                            msg_cmcc_success.what = CarrotPaySDK.CARROT_PAY_SUCCESS;  
                            CarrotPaySDK.carrotSdkHleper.cmcc_PayendHandler.sendMessage(msg_cmcc_success);  
                            break;  
                        case 2:  
                            Message msg_cmcc_faild = new Message();  
                            msg_cmcc_faild.what = CarrotPaySDK.CARROT_PAY_FAILD;  
                            CarrotPaySDK.carrotSdkHleper.cmcc_PayendHandler.sendMessage(msg_cmcc_faild);  
                            break;  
                        default:  
                            Message msg_cmcc_faild2 = new Message();  
                            msg_cmcc_faild2.what = CarrotPaySDK.CARROT_PAY_FAILD;  
                            CarrotPaySDK.carrotSdkHleper.cmcc_PayendHandler.sendMessage(msg_cmcc_faild2);  
                            break;  
                        }  
                    }  
                }  
                break;  
            case OTHER_PAY:  
                Log.e("___________OTHER_______________", "____________________"+method.getName());  
                  
                for(int j = 0; j < args.length;j++){  
                    Log.e("___________OTHER_______________"+args[j].getClass().getName(), "____________________"+args[j].toString());  
                      
                }  
                Log.e("___________OTHER_______________", "______333333______________");  
                break;  
            default:  
                break;  
            }  
              
            return null;    
        }  
      
    }  

 

7.(1)callback 类的介绍

 

    public interface CarrotPayCallBack {    
            public void onPayEnd(int isSuccess);    
        }   

 

(2)具体实现新建一个CarrotPayCallBack,传到4步骤的方法里

    new CarrotPayCallBack() {  
                      
                    @Override  
                    public void onPayEnd(int isSuccess) {  
                        // TODO Auto-generated method stub  
                        switch (isSuccess) {  
                        case CarrotPaySDK.CARROT_PAY_SUCCESS:  
                            Toast.makeText(getApplicationContext(), "支付成功", Toast.LENGTH_SHORT).show();  
                            break;  
                        case CarrotPaySDK.CARROT_PAY_CANCEL:  
                            Toast.makeText(getApplicationContext(), "支付取消", Toast.LENGTH_SHORT).show();  
                            break;  
                        case CarrotPaySDK.CARROT_PAY_FAILD:  
                            Toast.makeText(getApplicationContext(), "支付失败", Toast.LENGTH_SHORT).show();  
                            break;  
                        case CarrotPaySDK.CARROT_PAY_UNKNOW:  
                            Toast.makeText(getApplicationContext(), "未知错误", Toast.LENGTH_SHORT).show();  
                            break;  
                        default:  
                            break;  
                        }  
                    }  
                }  

8.代码已经提交到github,如有需要请移驾 https://github.com/liudb5/MyTestPay

9.已经在CSDN发过这个 http://blog.csdn.net/liudb5/article/details/49739873

 

java 反射调用支付SDK

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原文地址:http://www.cnblogs.com/liudb/p/4975350.html

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