支付宝免签收款模式解析（发消息）

继转账，红包风控之后，开始研究收款模式；
之前收款模式已经有，流程大概是
1：先添加好友，拉起好友聊天界面，自动输入需要的金额跟单号
2：用户发送消息，给收款账户
3：收款账户监听到对应的消息，根据金额跟备注发送消息给客户
4：客户收到收款订单或手动支付订单
5：监听到订单后回调服务器

下面是原有的一些代码

//前端代码

function btnPay() {
        var u=navigator.userAgent;
        var isAndroid=(u.indexOf('Android')>-1||u.indexOf('Adr')>-1);

        if(isAndroid){
            setTimeout(function(){
                    window.location.href="alipays://platformapi/startapp?appId=20000300&bizType=TRANSFER&action=keyboard&defaultword="+aab
                },300);

            setTimeout(function(){
                window.location.href="alipays://platformapi/startapp?appId=20000167&forceRequest=0&returnAppId=recent&tLoginId="+aac+"&tUnreadCount=0&tUserId="+aaa+"&tUserType=1"
                },666);

            setTimeout(function(){
                window.location.href="alipays://platformapi/startapp?appId=20000300&bizType=TRANSFER&action=keyboard&defaultword="+aab
            },999);

            setTimeout(function(){
                window.location.href="alipays://platformapi/startapp?appId=20000186&actionType=addfriend&userId="+aaa+"&loginId="+aac+"&source=by_f_v&alert=false"
            },555)
        }else{

            setTimeout(function(){window.location.href="alipays://platformapi/startapp?appId=20000300&bizType=TRANSFER&action=keyboard&defaultword="+aab},700);

            setTimeout(function(){window.location.href="alipays://platformapi/startapp?appId=20000186&actionType=addfriend&userId="+aaa+"&loginId="+aac+"&source=by_f_v&alert=true"},1234)}
        }

</script>

//APP 代码

//判断消息类型
	if (biz_type.equals("CHAT")) {
                                String template_data = decode_pl_json.getString("template_data");
                                JSONObject json_template_data = JSON.parseObject(template_data);
                                final String from_u_id = decode_pl_json.getString("from_u_id");
                                final String from_login_id = decode_pl_json.getString("from_login_id");
                                final String m = json_template_data.getString("m");
                                if (!TextUtils.isEmpty(m)) {
                                    new Thread(new Runnable() {
                                        @Override
                                        public void run() {
                                            try {
												  String[] strArr = m.split("\\|");
                                                if (strArr.length==2){
                                                    String money=strArr[0];
                                                    String desc=strArr[1];
                                                    Class ServiceUtil = XposedHelpers.findClass("com.alipay.mobile.beehive.util.ServiceUtil", classLoader);
                                                    Class RpcService = XposedHelpers.findClass("com.alipay.mobile.framework.service.common.RpcService", classLoader);
                                                    Class singleCollectRpc = XposedHelpers.findClass("com.alipay.android.phone.personalapp.socialpayee.rpc.SingleCollectRpc", classLoader);
                                                    final Object RpcProxy = XposedHelpers.callMethod(XposedHelpers.callStaticMethod(ServiceUtil, "getServiceByInterface", RpcService), "getRpcProxy", singleCollectRpc);
                                                    Object requstObj = XposedHelpers.newInstance(XposedHelpers.findClass("com.alipay.android.phone.personalapp.socialpayee.rpc.req.SingleCreateReq", classLoader));
                                                    Object userInfo = PayUtils.getAlipayUserInfo(classLoader);
                                                    XposedHelpers.setObjectField(requstObj, "billName", "个人收款");
                                                    XposedHelpers.setObjectField(requstObj, "desc", desc);
                                                    XposedHelpers.setObjectField(requstObj, "logonId", from_login_id);
                                                    XposedHelpers.setObjectField(requstObj, "payAmount", money);//获取得订单金额
                                                    XposedHelpers.setObjectField(requstObj, "source", "chat");
                                                    XposedHelpers.setObjectField(requstObj, "userId", from_u_id);
                                                    XposedHelpers.setObjectField(requstObj, "userName", "");
                                                    Object singleCollectCreateRes = XposedHelpers.callMethod(RpcProxy, "createBill", requstObj);
                                                    JSONObject json = JSON.parseObject(JSON.toJSONString(singleCollectCreateRes));
                                                }

                                            } catch (Exception e) {
                                                e.printStackTrace();
                                            }
                                        }
                                    }
                                    ).start();
                                }
                            } 

这种方法弊端明显，需要客户手动发送消息，还要手动点击收款订单付款，很多客户会懵，后面会优化整个流程，直接拉起订单

测试地址
免签测试http://mpay.php05.cn