Android接入支付宝实现支付功能实例
我本来是想直接讲android支付这一块的,包括支付宝,微信,其他第三方整合支付等,但是微信开放平台他对我的账号做了限制,所有我今天就先把重心放在支付宝的支付上,也算是写得尽可能详细些吧,毕竟是第三方的sdk,只要我们耐心的阅读文档和开发引导,这个其实不是很难的,我也是没有用过支付宝的支付,但是我相信,你看完这篇博客,也会对他了如指掌的,好的,我们正文开始
一.准备步骤
1.登录官网
他的官网就是蚂蚁金服的开放平台了,我们可以访问 ,并且注册账号进行登录
创建应用
如果你是现有的应用直接接入支付功能的话,可以不看这里,我这里是因为需要讲博客所有重新创建了一个项目并且在android studio里也重新创建了一个项目,android studio里创建的项目我把他叫做simplemall,简单商城的意思,那在开放平台我们又是如何去创建应用呢,点击-进入我的开放平台-应用,就可以看到应用管理了。我们点击创建应用
创建成果之后有很多的选项包括需要你上传
这些先不管,我们这个时候可以看到已经拿到了appid: 2017062807585767,这样我们就可以继续下一步的准备了
3.签约
大部分的功能需要签约才能使用,很遗憾,我这个个体户就不行了
4.配置密钥
配置秘钥是支付这一环节很重要的因素,也是分了两个步骤,生成秘钥和配置秘钥,这里使用的ras非对称加密
我们按照文档上来,首先是下载工具了,这里有win和mac两个地址,我是win,下载下来是这个样子的
我们按照图中的配置拿到了公钥和私钥
那我们可以配置了,我们找到项目详情
然后这里是两种方式,我们选择的是rsa方式么其实哪种方式都是可以的
到这里,这个也配置好了
5.sdk 下载
到这里,我们就可以直接去下载他的sdk了sdk下载地址
这个压缩包下载下来什么都有,要找到android的部分
二.sdk集成
我们现在就开始来把jar集成进去,支付宝给我们提供的就是一个jar,我们放进我们的工程里面去
并且在我们的app/build.gradle里配置一下
compile files('libs/alipaysdk-20170623-proguard.jar')
这样jar就集成好了,然后配置一下清单文件
<activity android:name="com.alipay.sdk.app.h5payactivity" android:configchanges="orientation|keyboardhidden|navigation" android:exported="false" android:screenorientation="behind"/> <activity android:name="com.alipay.sdk.auth.authactivity" android:configchanges="orientation|keyboardhidden|navigation" android:exported="false" android:screenorientation="behind"/>
并且添加权限
<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" />
如大于等于android6.0,还需要动态申请下权限
如果你的项目需要混淆,需要添加混淆规则
-libraryjars libs/alipaysdk-20150602.jar -keep class com.alipay.android.app.ialixpay{*;} -keep class com.alipay.android.app.ialixpay$stub{*;} -keep class com.alipay.android.app.iremoteservicecallback{*;} -keep class com.alipay.android.app.iremoteservicecallback$stub{*;} -keep class com.alipay.sdk.app.paytask{ public *;} -keep class com.alipay.sdk.app.authtask{ public *;}
嗯,可以说得上是比较简单的,我们继续
三.支付接口调用
其实支付宝的调用还是比较简单的,我们来看一下我的调用方式
public class mainactivity extends appcompatactivity implements view.onclicklistener { private button btnpay; private static final int sdk_pay_flag = 1001; private string rsa_private = "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"; public static final string appid = "2017062807585767"; private handler mhandler = new handler() { @override public void handlemessage(message msg) { super.handlemessage(msg); switch (msg.what) { case sdk_pay_flag: payresult payresult = new payresult((map<string, string>) msg.obj); //同步获取结果 string resultinfo = payresult.getresult(); log.i("pay", "pay:" + resultinfo); string resultstatus = payresult.getresultstatus(); // 判断resultstatus 为9000则代表支付成功 if (textutils.equals(resultstatus, "9000")) { toast.maketext(mainactivity.this, "支付成功", toast.length_short).show(); } else { toast.maketext(mainactivity.this, "支付失败", toast.length_short).show(); } break; } } }; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); initview(); } private void initview() { btnpay = (button) findviewbyid(r.id.btnpay); btnpay.setonclicklistener(this); } @override public void onclick(view v) { switch (v.getid()) { case r.id.btnpay: //秘钥验证的类型 true:rsa2 false:rsa boolean rsa = false; //构造支付订单参数列表 map<string, string> params = orderinfoutil2_0.buildorderparammap(appid, rsa); //构造支付订单参数信息 string orderparam = orderinfoutil2_0.buildorderparam(params); //对支付参数信息进行签名 string sign = orderinfoutil2_0.getsign(params, rsa_private, rsa); //订单信息 final string orderinfo = orderparam + "&" + sign; //异步处理 runnable payrunnable = new runnable() { @override public void run() { //新建任务 paytask alipay = new paytask(mainactivity.this); //获取支付结果 map<string, string> result = alipay.payv2(orderinfo, true); 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(); break; } } }
可以看到我们并没有多少代码,调用起来
但是还是提示有错误,我们来看一下他的返回值
{"alipay_trade_app_pay_response":{"code":"40006","msg":"insufficient permissions","sub_code":"isv.insufficient-isv-permissions","sub_msg":"isv权限不足"}}
这是因为我们这个应用并没有去签约功能,所有并没有这个权限,好的,但是起码可以看出我们已经可以调用支持包的支付了,那我们继续来了解他的功能吧
四.api
首先我们看下他提供的orderinfoutil2_0这个工具类
public class orderinfoutil2_0 { /** * 构造授权参数列表 * * @param pid * @param app_id * @param target_id * @return */ public static map<string, string> buildauthinfomap(string pid, string app_id, string target_id, boolean rsa2) { map<string, string> keyvalues = new hashmap<string, string>(); // 商户签约拿到的app_id,如:2013081700024223 keyvalues.put("app_id", app_id); // 商户签约拿到的pid,如:2088102123816631 keyvalues.put("pid", pid); // 服务接口名称, 固定值 keyvalues.put("apiname", "com.alipay.account.auth"); // 商户类型标识, 固定值 keyvalues.put("app_name", "mc"); // 业务类型, 固定值 keyvalues.put("biz_type", "openservice"); // 产品码, 固定值 keyvalues.put("product_id", "app_fast_login"); // 授权范围, 固定值 keyvalues.put("scope", "kuaijie"); // 商户唯一标识,如:kkkkk091125 keyvalues.put("target_id", target_id); // 授权类型, 固定值 keyvalues.put("auth_type", "authaccount"); // 签名类型 keyvalues.put("sign_type", rsa2 ? "rsa2" : "rsa"); return keyvalues; } /** * 构造支付订单参数列表 * @param app_id * @return */ public static map<string, string> buildorderparammap(string app_id, boolean rsa2) { map<string, string> keyvalues = new hashmap<string, string>(); keyvalues.put("app_id", app_id); keyvalues.put("biz_content", "{\"timeout_express\":\"30m\",\"product_code\":\"quick_msecurity_pay\",\"total_amount\":\"0.01\",\"subject\":\"1\",\"body\":\"我是测试数据\",\"out_trade_no\":\"" + getouttradeno() + "\"}"); keyvalues.put("charset", "utf-8"); keyvalues.put("method", "alipay.trade.app.pay"); keyvalues.put("sign_type", rsa2 ? "rsa2" : "rsa"); keyvalues.put("timestamp", "2016-07-29 16:55:53"); keyvalues.put("version", "1.0"); return keyvalues; } /** * 构造支付订单参数信息 * * @param map * 支付订单参数 * @return */ public static string buildorderparam(map<string, string> map) { list<string> keys = new arraylist<string>(map.keyset()); stringbuilder sb = new stringbuilder(); for (int i = 0; i < keys.size() - 1; i++) { string key = keys.get(i); string value = map.get(key); sb.append(buildkeyvalue(key, value, true)); sb.append("&"); } string tailkey = keys.get(keys.size() - 1); string tailvalue = map.get(tailkey); sb.append(buildkeyvalue(tailkey, tailvalue, true)); return sb.tostring(); } /** * 拼接键值对 * * @param key * @param value * @param isencode * @return */ private static string buildkeyvalue(string key, string value, boolean isencode) { stringbuilder sb = new stringbuilder(); sb.append(key); sb.append("="); if (isencode) { try { sb.append(urlencoder.encode(value, "utf-8")); } catch (unsupportedencodingexception e) { sb.append(value); } } else { sb.append(value); } return sb.tostring(); } /** * 对支付参数信息进行签名 * * @param map * 待签名授权信息 * * @return */ public static string getsign(map<string, string> map, string rsakey, boolean rsa2) { list<string> keys = new arraylist<string>(map.keyset()); // key排序 collections.sort(keys); stringbuilder authinfo = new stringbuilder(); for (int i = 0; i < keys.size() - 1; i++) { string key = keys.get(i); string value = map.get(key); authinfo.append(buildkeyvalue(key, value, false)); authinfo.append("&"); } string tailkey = keys.get(keys.size() - 1); string tailvalue = map.get(tailkey); authinfo.append(buildkeyvalue(tailkey, tailvalue, false)); string orisign = signutils.sign(authinfo.tostring(), rsakey, rsa2); string encodedsign = ""; try { encodedsign = urlencoder.encode(orisign, "utf-8"); } catch (unsupportedencodingexception e) { e.printstacktrace(); } return "sign=" + encodedsign; } /** * 要求外部订单号必须唯一。 * @return */ private static string getouttradeno() { simpledateformat format = new simpledateformat("mmddhhmmss", locale.getdefault()); date date = new date(); string key = format.format(date); random r = new random(); key = key + r.nextint(); key = key.substring(0, 15); return key; } }
而我们一开始就需要构建订单参数列表,就是这个方法
/** * 构造支付订单参数列表 * @param app_id * @return */ public static map<string, string> buildorderparammap(string app_id, boolean rsa2) { map<string, string> keyvalues = new hashmap<string, string>(); keyvalues.put("app_id", app_id); keyvalues.put("biz_content", "{\"timeout_express\":\"30m\",\"product_code\":\"quick_msecurity_pay\",\"total_amount\":\"0.01\",\"subject\":\"1\",\"body\":\"我是测试数据\",\"out_trade_no\":\"" + getouttradeno() + "\"}"); keyvalues.put("charset", "utf-8"); keyvalues.put("method", "alipay.trade.app.pay"); keyvalues.put("sign_type", rsa2 ? "rsa2" : "rsa"); keyvalues.put("timestamp", "2016-07-29 16:55:53"); keyvalues.put("version", "1.0"); return keyvalues; }
这个方法我们来解读一下吧,他其实就是构建一个map的键值对,都有哪些内容呢
- app_id(key)
- biz_content(内容)
- charset(编码)
- method(方法)
- sign_type(签名类型)
- timestamp(时间戳)
- version(版本)
这个demo里面可能都是写死了,但是如果我们真的要在实际应用中开发支付的话,这里要填写正确,我们主要关心的有方法和签名类型还有版本这三个
方法有几个类型,要注意一下
其次就是签名方式了,有两种,rsa和rsa2
最后就是版本,版本可以通过paytask去获取
//获取版本 private string getplayversion(paytask paytask){ return paytask.getversion(); }
而关于biz_content,就需要你们自己去定义了,我们来看下全部的参数说明
当我们拿到map之后就可以转换成一个string作为请求信息了,可以看到我们使用的是这个方法
/** * 构造支付订单参数信息 * * @param map * 支付订单参数 * @return */ public static string buildorderparam(map<string, string> map) { list<string> keys = new arraylist<string>(map.keyset()); stringbuilder sb = new stringbuilder(); for (int i = 0; i < keys.size() - 1; i++) { string key = keys.get(i); string value = map.get(key); sb.append(buildkeyvalue(key, value, true)); sb.append("&"); } string tailkey = keys.get(keys.size() - 1); string tailvalue = map.get(tailkey); sb.append(buildkeyvalue(tailkey, tailvalue, true)); return sb.tostring(); }
他的本质就是拼接出最后的订单信息,如图
好的,现在订单详情已经有了我们就可以把订单加密了
/** * 对支付参数信息进行签名 * * @param map * 待签名授权信息 * * @return */ public static string getsign(map<string, string> map, string rsakey, boolean rsa2) { list<string> keys = new arraylist<string>(map.keyset()); // key排序 collections.sort(keys); stringbuilder authinfo = new stringbuilder(); for (int i = 0; i < keys.size() - 1; i++) { string key = keys.get(i); string value = map.get(key); authinfo.append(buildkeyvalue(key, value, false)); authinfo.append("&"); } string tailkey = keys.get(keys.size() - 1); string tailvalue = map.get(tailkey); authinfo.append(buildkeyvalue(tailkey, tailvalue, false)); string orisign = signutils.sign(authinfo.tostring(), rsakey, rsa2); string encodedsign = ""; try { encodedsign = urlencoder.encode(orisign, "utf-8"); } catch (unsupportedencodingexception e) { e.printstacktrace(); } return "sign=" + encodedsign; }
这里的加密主要还是用到了signutils
public class signutils { private static final string algorithm = "rsa"; private static final string sign_algorithms = "sha1withrsa"; private static final string sign_sha256rsa_algorithms = "sha256withrsa"; private static final string default_charset = "utf-8"; private static string getalgorithms(boolean rsa2) { return rsa2 ? sign_sha256rsa_algorithms : sign_algorithms; } public static string sign(string content, string privatekey, boolean rsa2) { try { pkcs8encodedkeyspec pripkcs8 = new pkcs8encodedkeyspec( base64.decode(privatekey)); keyfactory keyf = keyfactory.getinstance(algorithm); privatekey prikey = keyf.generateprivate(pripkcs8); java.security.signature signature = java.security.signature .getinstance(getalgorithms(rsa2)); signature.initsign(prikey); signature.update(content.getbytes(default_charset)); byte[] signed = signature.sign(); return base64.encode(signed); } catch (exception e) { e.printstacktrace(); } return null; } }
而signutils则启动了base64
public final class base64 { private static final int baselength = 128; private static final int lookuplength = 64; private static final int twentyfourbitgroup = 24; private static final int eightbit = 8; private static final int sixteenbit = 16; private static final int fourbyte = 4; private static final int sign = -128; private static char pad = '='; private static byte[] base64alphabet = new byte[baselength]; private static char[] lookupbase64alphabet = new char[lookuplength]; static { for (int i = 0; i < baselength; ++i) { base64alphabet[i] = -1; } for (int i = 'z'; i >= 'a'; i--) { base64alphabet[i] = (byte) (i - 'a'); } for (int i = 'z'; i >= 'a'; i--) { base64alphabet[i] = (byte) (i - 'a' + 26); } for (int i = '9'; i >= '0'; i--) { base64alphabet[i] = (byte) (i - '0' + 52); } base64alphabet['+'] = 62; base64alphabet['/'] = 63; for (int i = 0; i <= 25; i++) { lookupbase64alphabet[i] = (char) ('a' + i); } for (int i = 26, j = 0; i <= 51; i++, j++) { lookupbase64alphabet[i] = (char) ('a' + j); } for (int i = 52, j = 0; i <= 61; i++, j++) { lookupbase64alphabet[i] = (char) ('0' + j); } lookupbase64alphabet[62] = (char) '+'; lookupbase64alphabet[63] = (char) '/'; } private static boolean iswhitespace(char octect) { return (octect == 0x20 || octect == 0xd || octect == 0xa || octect == 0x9); } private static boolean ispad(char octect) { return (octect == pad); } private static boolean isdata(char octect) { return (octect < baselength && base64alphabet[octect] != -1); } /** * encodes hex octects into base64 * * @param binarydata * array containing binarydata * @return encoded base64 array */ public static string encode(byte[] binarydata) { if (binarydata == null) { return null; } int lengthdatabits = binarydata.length * eightbit; if (lengthdatabits == 0) { return ""; } int fewerthan24bits = lengthdatabits % twentyfourbitgroup; int numbertriplets = lengthdatabits / twentyfourbitgroup; int numberquartet = fewerthan24bits != 0 ? numbertriplets + 1 : numbertriplets; char encodeddata[] = null; encodeddata = new char[numberquartet * 4]; byte k = 0, l = 0, b1 = 0, b2 = 0, b3 = 0; int encodedindex = 0; int dataindex = 0; for (int i = 0; i < numbertriplets; i++) { b1 = binarydata[dataindex++]; b2 = binarydata[dataindex++]; b3 = binarydata[dataindex++]; l = (byte) (b2 & 0x0f); k = (byte) (b1 & 0x03); byte val1 = ((b1 & sign) == 0) ? (byte) (b1 >> 2) : (byte) ((b1) >> 2 ^ 0xc0); byte val2 = ((b2 & sign) == 0) ? (byte) (b2 >> 4) : (byte) ((b2) >> 4 ^ 0xf0); byte val3 = ((b3 & sign) == 0) ? (byte) (b3 >> 6) : (byte) ((b3) >> 6 ^ 0xfc); encodeddata[encodedindex++] = lookupbase64alphabet[val1]; encodeddata[encodedindex++] = lookupbase64alphabet[val2 | (k << 4)]; encodeddata[encodedindex++] = lookupbase64alphabet[(l << 2) | val3]; encodeddata[encodedindex++] = lookupbase64alphabet[b3 & 0x3f]; } // form integral number of 6-bit groups if (fewerthan24bits == eightbit) { b1 = binarydata[dataindex]; k = (byte) (b1 & 0x03); byte val1 = ((b1 & sign) == 0) ? (byte) (b1 >> 2) : (byte) ((b1) >> 2 ^ 0xc0); encodeddata[encodedindex++] = lookupbase64alphabet[val1]; encodeddata[encodedindex++] = lookupbase64alphabet[k << 4]; encodeddata[encodedindex++] = pad; encodeddata[encodedindex++] = pad; } else if (fewerthan24bits == sixteenbit) { b1 = binarydata[dataindex]; b2 = binarydata[dataindex + 1]; l = (byte) (b2 & 0x0f); k = (byte) (b1 & 0x03); byte val1 = ((b1 & sign) == 0) ? (byte) (b1 >> 2) : (byte) ((b1) >> 2 ^ 0xc0); byte val2 = ((b2 & sign) == 0) ? (byte) (b2 >> 4) : (byte) ((b2) >> 4 ^ 0xf0); encodeddata[encodedindex++] = lookupbase64alphabet[val1]; encodeddata[encodedindex++] = lookupbase64alphabet[val2 | (k << 4)]; encodeddata[encodedindex++] = lookupbase64alphabet[l << 2]; encodeddata[encodedindex++] = pad; } return new string(encodeddata); } /** * decodes base64 data into octects * * @param encoded * string containing base64 data * @return array containind decoded data. */ public static byte[] decode(string encoded) { if (encoded == null) { return null; } char[] base64data = encoded.tochararray(); // remove white spaces int len = removewhitespace(base64data); if (len % fourbyte != 0) { return null;// should be divisible by four } int numberquadruple = (len / fourbyte); if (numberquadruple == 0) { return new byte[0]; } byte decodeddata[] = null; byte b1 = 0, b2 = 0, b3 = 0, b4 = 0; char d1 = 0, d2 = 0, d3 = 0, d4 = 0; int i = 0; int encodedindex = 0; int dataindex = 0; decodeddata = new byte[(numberquadruple) * 3]; for (; i < numberquadruple - 1; i++) { if (!isdata((d1 = base64data[dataindex++])) || !isdata((d2 = base64data[dataindex++])) || !isdata((d3 = base64data[dataindex++])) || !isdata((d4 = base64data[dataindex++]))) { return null; }// if found "no data" just return null b1 = base64alphabet[d1]; b2 = base64alphabet[d2]; b3 = base64alphabet[d3]; b4 = base64alphabet[d4]; decodeddata[encodedindex++] = (byte) (b1 << 2 | b2 >> 4); decodeddata[encodedindex++] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf)); decodeddata[encodedindex++] = (byte) (b3 << 6 | b4); } if (!isdata((d1 = base64data[dataindex++])) || !isdata((d2 = base64data[dataindex++]))) { return null;// if found "no data" just return null } b1 = base64alphabet[d1]; b2 = base64alphabet[d2]; d3 = base64data[dataindex++]; d4 = base64data[dataindex++]; if (!isdata((d3)) || !isdata((d4))) {// check if they are pad characters if (ispad(d3) && ispad(d4)) { if ((b2 & 0xf) != 0)// last 4 bits should be zero { return null; } byte[] tmp = new byte[i * 3 + 1]; system.arraycopy(decodeddata, 0, tmp, 0, i * 3); tmp[encodedindex] = (byte) (b1 << 2 | b2 >> 4); return tmp; } else if (!ispad(d3) && ispad(d4)) { b3 = base64alphabet[d3]; if ((b3 & 0x3) != 0)// last 2 bits should be zero { return null; } byte[] tmp = new byte[i * 3 + 2]; system.arraycopy(decodeddata, 0, tmp, 0, i * 3); tmp[encodedindex++] = (byte) (b1 << 2 | b2 >> 4); tmp[encodedindex] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf)); return tmp; } else { return null; } } else { // no pad e.g 3cql b3 = base64alphabet[d3]; b4 = base64alphabet[d4]; decodeddata[encodedindex++] = (byte) (b1 << 2 | b2 >> 4); decodeddata[encodedindex++] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf)); decodeddata[encodedindex++] = (byte) (b3 << 6 | b4); } return decodeddata; } /** * remove whitespace from mime containing encoded base64 data. * * @param data * the byte array of base64 data (with ws) * @return the new length */ private static int removewhitespace(char[] data) { if (data == null) { return 0; } // count characters that's not whitespace int newsize = 0; int len = data.length; for (int i = 0; i < len; i++) { if (!iswhitespace(data[i])) { data[newsize++] = data[i]; } } return newsize; } }
这些你都可以在我写的demo里获取到的,我们继续分析就是了,当加密成功之后他会返回一个sign的字符串给我,这就是加密信息,然后通过 订单信息 & 加密订单这种公式就拼接出商品信息
//订单信息 string orderinfo = orderparam + "&" + sign;
好的,我们的下单需要在异步中操作,也就是我们所见到的runnable
runnable payrunnable = new runnable() { @override public void run() { //新建任务 paytask alipay = new paytask(mainactivity.this); //获取支付结果 map<string, string> result = alipay.payv2(orderinfo, true); message msg = new message(); msg.what = sdk_pay_flag; msg.obj = result; mhandler.sendmessage(msg); } };
在这里他同样的是构建一个paytask 区调用payv2,里面的参数就是订单信息和一个boolean值,具体参数可以参考
好的,当我们拿到结果后通过handler回到ui线程
payresult payresult = new payresult((map<string, string>) msg.obj); //同步获取结果 string resultinfo = payresult.getresult(); log.i("pay", "pay:" + resultinfo); string resultstatus = payresult.getresultstatus(); // 判断resultstatus 为9000则代表支付成功 if (textutils.equals(resultstatus, "9000")) { toast.maketext(mainactivity.this, "支付成功", toast.length_short).show(); } else { toast.maketext(mainactivity.this, "支付失败", toast.length_short).show(); }
这里其实payresult只是把结果几个关键信息提取出来了
public class payresult { private string resultstatus; private string result; private string memo; public payresult(map<string, string> rawresult) { if (rawresult == null) { return; } for (string key : rawresult.keyset()) { if (textutils.equals(key, "resultstatus")) { resultstatus = rawresult.get(key); } else if (textutils.equals(key, "result")) { result = rawresult.get(key); } else if (textutils.equals(key, "memo")) { memo = rawresult.get(key); } } } @override public string tostring() { return "resultstatus={" + resultstatus + "};memo={" + memo + "};result={" + result + "}"; } /** * @return the resultstatus */ public string getresultstatus() { return resultstatus; } /** * @return the memo */ public string getmemo() { return memo; } /** * @return the result */ public string getresult() { return result; } }
我们如果想看详细的结果,可以打印resultinfo,好的,关于返回参数,可以参考app支付同步通知参数说明
好的,事实上在实际开发中,要做的准备工作并不只是这么点,毕竟涉及到支付这个敏感话题,我这边也只是个人商户,没办法给大家展示正确的结果了,可能有些疏漏,但是大体就是这样,比微信稍微要简单点,我们下次细聊下微信支付,我们感觉去注册个账号去~~~
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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