服务端源码地址:http://git.oschina.net/javen205/weixin_guide 客户端源码地址:https://github.com/Javen205/JPay
微信APP支付接入商户服务中心 官方介绍文档
在开放平台直接注册,注册邮箱不能与微信其他的产品同号。
比较坑的是微信公众号中的支付(微信买单、刷卡、公众号支付、wap支付)以及微信app支付都需要进行微信认证而不是公用一个微信商户平台(需要交两次认证的费用)。
开发者认证.png
微信认证这个时间比较短(毕竟交了300大洋)一般一个工作日就会有人联系你核查公司的资料。
微信认证(开发者资质认证)通过之后就可以在开放平台添加应用了(这个需要审核),应用通过之后就可以申请微信支付了(也需要审核)
这个比较简单,按照提示操作就行 上图
添加应用-填写基本信息1
添加应用-填写基本信息2
添加应用-上传应用图片
添加应用-填写平台信息
应用包名只定义,应用签名可以使用资源下载中心的签名生成工具。务必记住包名以及签名keystore文件的密码,如果包名或者签名文件不对打包是唤不起微信支付的。
资源下载
下载的资源截图
应用签名工具
如果添加的应用审核通过了(一个工作日),就可以直接申请微信支付了(7个工作日之内)。
应用审核通过-申请微信支付
审核通过之后将会收到审核通过的邮件,里面有登录商户平台的登录账户、密码、商户号以及一些操作指引的说明。服务端生成预付订单的签名需要密钥 设置方法可以参考这里
这里主要聊聊Android微信支付,主要包括以下几个步骤 1、商户服务端生成订单并在微信平台生成预付订单 2、客户端调起微信支付进行支付 3、客户端回调支付结果 4、服务端接收支付通知
调起微信支付前需要服务器生成支付订单再调用【统一下单API】生成预付订单prepayId,再生成签名sign【调起支付API】
以上两个步骤建议都在服务端完成,客户端(Android)通过接口获取对应的参数即可
通过微信提供的jar 唤起微信支付
调起微信支付
参照微信SDK Sample,在net.sourceforge.simcpux.wxapi包路径中实现WXPayEntryActivity类【包名或类名不一致会造成无法回调】 栗子说明:认真反复读了几遍,感觉这句话有歧义是一个坑,测试的时候一直不回调。这里他想说的意识如下: 比如你申请应用包名为:
javen.com
那么回调的WXPayEntryActivity
类必须放到javen.com.wxapi
的包下面
客户端回调支付结果
支付结果通知【官方文档】
代码实现参考开源项目 【点击这里】
此项目已开源 【点击这里】 如果对你有帮助请点击
Start
告诉我 hahaha 。以下代码对应的目录在com.javen.weixin.controller.WeixinPayController.java
中
/** * 微信APP支付 */ public void appPay(){ //不用设置授权目录域名 //统一下单地址 https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=9_1# Map<String, String> params = new HashMap<String, String>(); params.put("appid", appid); params.put("mch_id", partner); params.put("nonce_str", System.currentTimeMillis() / 1000 + ""); params.put("body", "Javen微信公众号极速开发"); String out_trade_no=System.currentTimeMillis()+""; params.put("attach", "custom json"); params.put("out_trade_no", out_trade_no); int price=10000; params.put("total_fee", price+""); String ip = IpKit.getRealIp(getRequest()); if (StrKit.isBlank(ip)) { ip = "127.0.0.1"; } params.put("spbill_create_ip", ip); params.put("notify_url", notify_url); params.put("trade_type", "APP"); String sign = PaymentKit.createSign(params, paternerKey); params.put("sign", sign); String xmlResult = PaymentApi.pushOrder(params); System.out.println(xmlResult); Map<String, String> result = PaymentKit.xmlToMap(xmlResult); String return_code = result.get("return_code"); String return_msg = result.get("return_msg"); if (StrKit.isBlank(return_code) || !"SUCCESS".equals(return_code)) { ajax.addError(return_msg); renderJson(ajax); return; } String result_code = result.get("result_code"); if (StrKit.isBlank(result_code) || !"SUCCESS".equals(result_code)) { ajax.addError(return_msg); renderJson(ajax); return; } // 以下字段在return_code 和result_code都为SUCCESS的时候有返回 String prepay_id = result.get("prepay_id"); //封装调起微信支付的参数 https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=9_12 Map<String, String> packageParams = new HashMap<String, String>(); packageParams.put("appid", appid); packageParams.put("partnerid", partner); packageParams.put("prepayid", prepay_id); packageParams.put("package", "Sign=WXPay"); packageParams.put("noncestr", System.currentTimeMillis() + ""); packageParams.put("timestamp", System.currentTimeMillis() / 1000 + ""); String packageSign = PaymentKit.createSign(packageParams, paternerKey); packageParams.put("sign", packageSign); String jsonStr = JsonUtils.toJson(packageParams); System.out.println("最新返回apk的参数:"+jsonStr); renderJson(jsonStr); }
使用单例模式统一入口,首先判断微信客户端是否安装,如果有安装再从商户服务器获取调起支付的参数
public class IPay { private static IPay mIPay; private Context mContext; private IPay(Context context) { mContext = context; } public static IPay getIntance(Context context){ if (mIPay == null) { synchronized(IPay.class){ if (mIPay == null) { mIPay = new IPay(context); } } } return mIPay; } //支付结果回调 public interface IPayListener{ void onPay(int code); } public void toTestPay(Order order,IPayListener listener){ if (order != null) { if (IPayLogic.getIntance(mContext.getApplicationContext()).isWeixinAvilible()) { Constants.payListener = listener; new TestPayPrepay(mContext).execute(); }else { Toast.makeText(mContext, "未安装微信", Toast.LENGTH_LONG).show(); } }else { Toast.makeText(mContext, "参数异常 order is null", Toast.LENGTH_LONG).show(); } } }
调起微信支付、获取调取微信支付参数、判断微信是否安装逻辑实现
public class IPayLogic { private static IPayLogic mIPayLogic; private Context mContext; private IPayLogic(Context context) { mContext = context; } public static IPayLogic getIntance(Context context){ if (mIPayLogic == null) { synchronized(IPayLogic.class){ if (mIPayLogic == null) { mIPayLogic = new IPayLogic(context); } } } return mIPayLogic; } //测试 public String testPay(){ return HttpKit.get(Constants.TESTPAY_URL); } /** * 调起支付 * @param appId * @param partnerId * @param prepayId * @param nonceStr * @param timeStamp * @param sign */ public void startWXPay(String appId,String partnerId,String prepayId, String nonceStr,String timeStamp,String sign){ IWXAPI api= WXAPIFactory.createWXAPI(mContext, null); api.registerApp(appId); boolean isPaySupported = api.getWXAppSupportAPI() >= Build.PAY_SUPPORTED_SDK_INT; if (!isPaySupported) { Toast.makeText(mContext, "请更新微信客户端", Toast.LENGTH_SHORT).show(); return; } PayReq request = new PayReq(); request.appId = appId; request.partnerId = partnerId; request.prepayId= prepayId; request.packageValue = "Sign=WXPay"; request.nonceStr=nonceStr; request.timeStamp= timeStamp; request.sign= sign; api.sendReq(request); } /** * 判断微信是否安装 * @param context * @return */ public boolean isWeixinAvilible() { final PackageManager packageManager = mContext.getPackageManager();// 获取packagemanager List<PackageInfo> pinfo = packageManager.getInstalledPackages(0);// 获取所有已安装程序的包信息 if (pinfo != null) { for (int i = 0; i < pinfo.size(); i++) { String pn = pinfo.get(i).packageName; if (pn.equals("com.tencent.mm")) { return true; } } } return false; } }
HttpKit MD5 工具类
/** * HttpKit */ public class HttpKit { private HttpKit() {} /** * https 域名校验 */ private class TrustAnyHostnameVerifier implements HostnameVerifier { public boolean verify(String hostname, SSLSession session) { return true; } } /** * https 证书管理 */ private class TrustAnyTrustManager implements X509TrustManager { public X509Certificate[] getAcceptedIssuers() { return null; } public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException { } public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException { } } private static final String GET = "GET"; private static final String POST = "POST"; private static String CHARSET = "UTF-8"; private static final SSLSocketFactory sslSocketFactory = initSSLSocketFactory(); private static final TrustAnyHostnameVerifier trustAnyHostnameVerifier = new HttpKit().new TrustAnyHostnameVerifier(); private static SSLSocketFactory initSSLSocketFactory() { try { TrustManager[] tm = {new HttpKit().new TrustAnyTrustManager() }; SSLContext sslContext = SSLContext.getInstance("TLS"); // ("TLS", "SunJSSE"); sslContext.init(null, tm, new java.security.SecureRandom()); return sslContext.getSocketFactory(); } catch (Exception e) { throw new RuntimeException(e); } } public static void setCharSet(String charSet) { if (charSet.isEmpty()) { throw new IllegalArgumentException("charSet can not be blank."); } HttpKit.CHARSET = charSet; } private static HttpURLConnection getHttpConnection(String url, String method, Map<String, String> headers) throws IOException, NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException { URL _url = new URL(url); HttpURLConnection conn = (HttpURLConnection)_url.openConnection(); if (conn instanceof HttpsURLConnection) { ((HttpsURLConnection)conn).setSSLSocketFactory(sslSocketFactory); ((HttpsURLConnection)conn).setHostnameVerifier(trustAnyHostnameVerifier); } conn.setRequestMethod(method); conn.setDoOutput(true); conn.setDoInput(true); conn.setConnectTimeout(19000); conn.setReadTimeout(19000); conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded"); conn.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36"); if (headers != null && !headers.isEmpty()) for (Entry<String, String> entry : headers.entrySet()) conn.setRequestProperty(entry.getKey(), entry.getValue()); return conn; } /** * Send GET request */ public static String get(String url, Map<String, String> queryParas, Map<String, String> headers) { HttpURLConnection conn = null; try { conn = getHttpConnection(buildUrlWithQueryString(url, queryParas), GET, headers); conn.connect(); return readResponseString(conn); } catch (Exception e) { throw new RuntimeException(e); } finally { if (conn != null) { conn.disconnect(); } } } public static String get(String url, Map<String, String> queryParas) { return get(url, queryParas, null); } public static String get(String url) { return get(url, null, null); } /** * Send POST request */ public static String post(String url, Map<String, String> queryParas, String data, Map<String, String> headers) { HttpURLConnection conn = null; try { conn = getHttpConnection(buildUrlWithQueryString(url, queryParas), POST, headers); conn.connect(); OutputStream out = conn.getOutputStream(); out.write(data.getBytes(CHARSET)); out.flush(); out.close(); return readResponseString(conn); } catch (Exception e) { throw new RuntimeException(e); } finally { if (conn != null) { conn.disconnect(); } } } public static String post(String url, Map<String, String> queryParas, String data) { return post(url, queryParas, data, null); } public static String post(String url, String data, Map<String, String> headers) { return post(url, null, data, headers); } public static String post(String url, String data) { return post(url, null, data, null); } private static String readResponseString(HttpURLConnection conn) { StringBuilder sb = new StringBuilder(); InputStream inputStream = null; try { inputStream = conn.getInputStream(); BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, CHARSET)); String line = null; while ((line = reader.readLine()) != null){ sb.append(line).append("\n"); } return sb.toString(); } catch (Exception e) { throw new RuntimeException(e); } finally { if (inputStream != null) { try { inputStream.close(); } catch (IOException e) { } } } } /** * Build queryString of the url */ private static String buildUrlWithQueryString(String url, Map<String, String> queryParas) { if (queryParas == null || queryParas.isEmpty()) return url; StringBuilder sb = new StringBuilder(url); boolean isFirst; if (url.indexOf("?") == -1) { isFirst = true; sb.append("?"); } else { isFirst = false; } for (Entry<String, String> entry : queryParas.entrySet()) { if (isFirst) isFirst = false; else sb.append("&"); String key = entry.getKey(); String value = entry.getValue(); if (!value.isEmpty()) try {value = URLEncoder.encode(value, CHARSET);} catch (UnsupportedEncodingException e) {throw new RuntimeException(e);} sb.append(key).append("=").append(value); } return sb.toString(); } }
public class MD5 { public static String MD5sign(String s) { char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; try { byte[] btInput = s.getBytes("UTF-8"); // 获得MD5摘要算法的 MessageDigest 对象 MessageDigest mdInst = MessageDigest.getInstance("MD5"); // 使用指定的字节更新摘要 mdInst.update(btInput); // 获得密文 byte[] md = mdInst.digest(); // 把密文转换成十六进制的字符串形式 int j = md.length; char str[] = new char[j * 2]; int k = 0; for (int i = 0; i < j; i++) { byte byte0 = md[i]; str[k++] = hexDigits[byte0 >>> 4 & 0xf]; str[k++] = hexDigits[byte0 & 0xf]; } return new String(str).toLowerCase(); } catch (Exception e) { e.printStackTrace(); return null; } } public static void main(String[] args) { System.out.println(MD5sign("Hello world")); } }
使用
AsyncTask
异步获取调起微信支付的相关参数。当然你也可以使用其他的异步网络请求开源框架
public class TestPayPrepay extends AsyncTask<Object, Integer, String> { private Context mContext; public TestPayPrepay(Context context) { this.mContext = context; } @Override protected String doInBackground(Object... params) { System.out.println("TestPayPrepay doInBackground"); return IPayLogic.getIntance(mContext).testPay(); } @Override protected void onPostExecute(String result) { try { if (result!=null) { System.out.println("TestPayPrepay result>"+result); JSONObject data = new JSONObject(result); if(!data.has("code")){ String sign = data.getString("sign"); String timestamp = data.getString("timestamp"); String noncestr = data.getString("noncestr"); String partnerid = data.getString("partnerid"); String prepayid = data.getString("prepayid"); String appid = data.getString("appid"); Toast.makeText(mContext, "正在调起支付", Toast.LENGTH_SHORT).show(); Constants.APP_ID = appid; IPayLogic.getIntance(mContext).startWXPay(appid, partnerid, prepayid, noncestr, timestamp, sign); }else{ String message = data.getString("message"); Log.d("PAY_GET", "返回错误"+message); Toast.makeText(mContext, "返回错误:"+message, Toast.LENGTH_SHORT).show(); } }else { System.out.println("get prepayid exception, is null"); } } catch (Exception e) { Log.e("PAY_GET", "异常:"+e.getMessage()); Toast.makeText(mContext, "异常:"+e.getMessage(), Toast.LENGTH_SHORT).show(); } super.onPostExecute(result); } }
支付结果回调
<activity android:name="[应用的包名].wxapi.WXPayEntryActivity" android:exported="true" android:theme="@android:style/Theme.Translucent" android:launchMode="singleTop" > </activity>
封装的是SDK 所以这里设置了一个透明的主题
public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler{ private IWXAPI api; private IPayListener payListener; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE);//隐藏标题 LinearLayout ll = new LinearLayout(this); setContentView(ll); api = WXAPIFactory.createWXAPI(this, Constants.APP_ID); api.handleIntent(getIntent(), this); finish(); } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); setIntent(intent); api.handleIntent(intent, this); } @Override public void onReq(BaseReq req) { } @Override public void onResp(BaseResp resp) { payListener = Constants.payListener; int code = resp.errCode; System.out.println("onResp errCode>"+code); if (payListener!=null) { payListener.onPay(code); System.out.println("payListener callback"); }else { System.out.println("payListener not callback"); } } }
注意:如果回调的
code
一直返回-1
1、请检查应用包名以及apk 的签名是否与你提交到微信开放平台的一致 2、请检查返回调取微信支付的参数是否正确 大部分原因是第一种
微信APP支付.png
遗留问题:由于支付应用的包名不固定
WXPayEntryActivity
无法封装到jar中,需要单独在支付应用添加.wxapi
这个包名并复制WXPayEntryActivity
到此包中。如果有好的解决方案欢迎留言
微信开发系列文章 http://www.jianshu.com/p/a172a1b69fdd
如果此文章对你有帮助请点击喜欢告诉我
服务端源码地址:http://git.oschina.net/javen205/weixin_guide 客户端源码地址:https://github.com/Javen205/JPay
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