转自：http://www.2cto.com/kf/201409/330136.html
准备:
1,导入微信的libs包libammsdk.jar;
2,测试时使用weixinDemo中的debug_keystore;
3,需要注意应用要通过审核,并且几个Key值正确,一下为微信支付Demo中的值:
| 1 2 3 4 5 6 7 8 9 10 | //微信公众平台id; private String app_wx_appid=WxConstants.app_wx_appid; //微信开放平台和商户约定的密钥 private String app_wx_secret_key= "db426a9829e4b49a0dcac7b4162da6b6" ; //微信公众平台商户模块和商户约定的密钥 private String app_wx_parent_key= "8934e7d15453e97507ef794cf7b0519d" ; //微信公众平台商户模块和商户约定的支付密钥 private String app_wx_pay_key= "L8LrMqqeGRxST5reouB0K66CaYAWpqhAVsq7ggKkxHCOastWksvuX1uvmvQclxaHoYd3ElNBrNO2DHnnzgfVG9Qs473M3DTOZug5er46FhuGofumV8H2FVR9qkjSlC5K" ; // 商家向财付通申请的商家id */ private String app_tx_parent_key = "1900000109" ; |
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根据微信支付Demo,微信支付分为三步:
第一步,获取accessToken,accessToken值第二步要用;
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | private class GetAccessTokenTask extends AsyncTask< void , void ,= "" wxgetaccesstokenresult= "" > { @Override protected WxGetAccessTokenResult doInBackground(Void... params) { WxGetAccessTokenResult result = getAccessToken(); return result; } @Override protected void onPostExecute(WxGetAccessTokenResult result) { if (result.localRetCode == WxLocalRetCode.ERR_OK) { GetPrepayIdTask getPrepayId = new GetPrepayIdTask(); getPrepayId.execute(result); } } }</ void ,> |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | private WxGetAccessTokenResult getAccessToken() { WxGetAccessTokenResult result = new WxGetAccessTokenResult(); String url = String.format(api_get_access_token, "client_credential" , app_wx_appid, app_wx_secret_key); byte [] buf = WeixinUtil.httpGet(url); if (buf == null || buf.length == 0 ) { result.localRetCode = WxLocalRetCode.ERR_HTTP; return result; } String content = new String(buf); result.parseFrom(content); return result; } |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 | private class GetPrepayIdTask extends AsyncTask<wxgetaccesstokenresult, void ,= "" wxgetprepayidresult= "" > { @Override protected WxGetPrepayIdResult doInBackground(WxGetAccessTokenResult... params) { WxGetPrepayIdResult result = getPrepayId(params[ 0 ]); return result; } @Override protected void onPostExecute(WxGetPrepayIdResult result) { if (result.localRetCode == WxLocalRetCode.ERR_OK) { sendPayReq(result); } } }</wxgetaccesstokenresult,> |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | private WxGetPrepayIdResult getPrepayId(WxGetAccessTokenResult accessTokenResult) { String url = String.format(api_get_preorder_id,accessTokenResult.accessToken); String entity = appSign.getWxPrepayAppSign(); WxGetPrepayIdResult result = new WxGetPrepayIdResult(); byte [] buf = WeixinUtil.httpPost(url, entity); if (buf == null || buf.length == 0 ) { result.localRetCode = WxLocalRetCode.ERR_HTTP; return result; } String content = new String(buf); result.parseFrom(content); return result; } |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | <span style= "white-space:pre" > </span> private void sendPayReq(WxGetPrepayIdResult result) { PayReq req = new PayReq(); req.appId = app_wx_appid; req.partnerId = app_tx_parent_key; req.prepayId = result.prepayId; req.nonceStr = appSign.getNoncestr(); req.timeStamp = appSign.getTimestamp(); req.packageValue = "Sign=" + appSign.getPackageSign(); List<namevaluepair> signParams = new LinkedList<namevaluepair>(); signParams.add( new BasicNameValuePair( "appid" , req.appId)); signParams.add( new BasicNameValuePair( "appkey" , app_wx_pay_key)); signParams.add( new BasicNameValuePair( "noncestr" , req.nonceStr)); signParams.add( new BasicNameValuePair( "package" , req.packageValue)); signParams.add( new BasicNameValuePair( "partnerid" , req.partnerId)); signParams.add( new BasicNameValuePair( "prepayid" , req.prepayId)); signParams.add( new BasicNameValuePair( "timestamp" , req.timeStamp)); req.sign = WeixinUtil.genSign(signParams); wxRequest.sendReq(req); }</namevaluepair></namevaluepair> |
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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | package net.sourceforge.simcpux.wxapi; public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler{<pre name= "code" class = "java" ><span style= "white-space:pre" > </span> @Override public void onResp(BaseResp resp) { Log.d(TAG, "onPayFinish, errCode = " + resp.errCode); if (resp.getType() == ConstantsAPI.COMMAND_PAY_BY_WX) { AlertDialog.Builder builder = new AlertDialog.Builder( this ); builder.setTitle( "支付结果" ); builder.setMessage( "支付结果" +String.valueOf(resp.errCode)); builder.show(); } }</pre>} <p></p> <pre class = "brush:java;" ></pre> ========================================== <p></p> <p>暂时没想到其他想说的,先看个效果</p> <p> 1 ,包结构,需要注意的就是接收微信返回结果的那个类名;</p> <p><img src= "" alt= "\" style=" display: inline; width: 239px; height: 238px;"></p> <p> 2 ,组装数据,规则在文档中有说明<喎� "" target= "_blank" class = "keylink" >vcD4KPHByZSBjbGFzcz0= "brush:java;" >//package_ 字段生成方法 //package生成方法： //A)对所有传入参数按照字段名的ASCII 码从小到大排序（字典序）后，使用URL 键值对的格式（即key1=value1&key2=value2…）拼接成字符串string1； //B) 在string1 最后拼接上key=partnerKey 得到stringSignTemp 字符串， 并对 stringSignTemp进行md5 运算，再将得到的字符串所有字符转换为大写，得到sign值signValue。 //C)对string1 中的所有键值对中的value 进行urlencode 转码，按照a 步骤重新拼接成字符串，得到string2。对于js 前端程序，一定要使用函数encodeURIComponent 进行urlencode编码（注意！进行urlencode时要将空格转化为%20而不是+）。 //D)将sign=signValue 拼接到string1 后面得到最终的package 字符串。 //app_signature生成方法： //A）参与签名的字段包括：appid、appkey、noncestr、package、timestamp以及 traceid //B）对所有待签名参数按照字段名的ASCII 码从小到大排序（字典序）后，使用URL 键值对的格式（即key1=value1&key2=value2…）拼接成字符串string1。 注意：所有参数名均为小写字符 //C）对string1 作签名算法，字段名和字段值都采用原始值，不进行URL 转义。具体签名算法为SHA1</p> |
3,对应的支付界面
