微信支付（APP内支付）
支付开通就不多说了。直接上代码过程 微信是以分为单位
注意：微信的key要严格按照他的来 谨记
1.先拼装请求参数
SortedMap parameterMap =newTreeMap<>();
parameterMap.put("appid", wx123456789);//应用APPID
parameterMap.put("mch_id", 148123456);//商户号
parameterMap.put("nonce_str",uuid());//随机字符串
parameterMap.put("body",”充值“);//商品名称
parameterMap.put("out_trade_no","CZ123456789");//订单号
parameterMap.put("total_fee",newBigDecimal("100").movePointRight(2));//100元订单金额以分为单位就是1元
parameterMap.put("spbill_create_ip", request.getRemoteAddr());//客户端本地ip
parameterMap.put("notify_url", localcallback.hhl.com);//支付回调地址
parameterMap.put("trade_type","APP");//如果是app支付就是app.公众号支付是JSAPI
String sign =WxpayMD5Util.createSign(parameterMap);// MD5进行签名，必须为UTF-8编码
parameterMap.put("sign", sign);
String requestXML = WxpayXMLUtil.getRequestXml(parameterMap);//生成xml结构的数据，用于统一下单接口的请求
logger.info("requestXML生成XML报文数据：");
logger.info(requestXML);
HttpClient client =newHttpClient();
PostMethod myPost =newPostMethod(WxpayConfigUtil.getWxpayUniurl());//开始请求统一下单接口，获取预支付prepay_id
client.getParams().setSoTimeout(300*1000);
String result = StringUtils.EMPTY;
try{
myPost.setRequestEntity(newStringRequestEntity(requestXML,"text/xml","utf-8"));
intstatusCode = client.executeMethod(myPost);
if(statusCode == HttpStatus.SC_OK) {
BufferedInputStream bis =newBufferedInputStream(myPost.getResponseBodyAsStream());
byte[] bytes =new byte[1024];
ByteArrayOutputStream bos =newByteArrayOutputStream();
intcount;
while((count = bis.read(bytes)) != -1) {
bos.write(bytes,0, count);
}
byte[] strByte = bos.toByteArray();
result =newString(strByte,0, strByte.length,"utf-8");
bos.close();
bis.close();
}
}catch(Exception e) {
e.printStackTrace();
}
/**需要释放掉、关闭连接*/
myPost.releaseConnection();
client.getHttpConnectionManager().closeIdleConnections(0);
logger.info("请求统一支付接口的返回XML报文结果:");
logger.info(result);
result成功后的结果如下：
转换成map后
0 = {HashMap$Node@10582} "nonce_str" -> "rwXiKn26tXzNeHt7"
1 = {HashMap$Node@10583} "appid" -> "wx123456789"
2 = {HashMap$Node@10584} "sign" -> "FQQQQQQAAAAACCCCCCDDDDDD"
3 = {HashMap$Node@10585} "trade_type" -> "APP"
4 = {HashMap$Node@10586} "return_msg" -> "OK"
5 = {HashMap$Node@10587} "result_code" -> "SUCCESS"
6 = {HashMap$Node@10588} "mch_id" -> "148123456"
7 = {HashMap$Node@10589} "return_code" -> "SUCCESS"
8 = {HashMap$Node@10590} "prepay_id" -> "wx201712201234567890123445"
try{
/**解析微信返回的信息，以Map形式存储便于取值*/
Map map = WxpayXMLUtil.doXMLParse(result);
SortedMap params =newTreeMap<>();
params.put("appid", WxpayConfigUtil.getWxpayAppId());
params.put("partnerid", WxpayConfigUtil.getWxpayMchId());//微信商户账号
params.put("prepayid", map.get("prepay_id"));//预付订单id
params.put("package","Sign=WXPay");//默认sign=WXPay
params.put("noncestr", IdGen.uuid());//自定义不重复的长度不长于32位
params.put("timestamp",newDate().getTime());
String paySign = WxpayMD5Util.createSign(params);
params.put("paySign", paySign);
String json = JSONArray.fromObject(params).toString();
}catch(JDOMException e) {
e.printStackTrace();
}catch(IOException e) {
e.printStackTrace();
}
-----------------------
以上就是微信支付交互步骤了。直接 return json就可以了。
注意：微信的key要严格按照他的来 谨记
这是交互中用到的工具类
支付后的回调，明天更新
文档参考链接如下
