java微信公众号企业付款开发

 @RequestMapping(value = "zhifu", method = RequestMethod.GET) public @ResponseBody String getWeixinOpenid(String code,   HttpServletRequest request) {  // 订单号 自定义 生成32位uuid  String partner_trade_no = UUIDGenerator.getUUID();  // 随机数  String nonce_str = UUIDGenerator.getUUID();  // 转账金额(分为单位)1-200  int jine = 100;  // 企业付款信息  String desc = "转账";  // ip地址  String spbill_create_ip = "xx.xx.xx";  // re_user_name  String re_user_name = "xx";  String check_name = CheckName.NO_CHECK.toString();  String zfpath = "D:/apiclient_cert.p12";  try  {   // 获取openid   String openid = WeChatUtil.getByOpenid(appid, secret, code);   // 付款   boolean flag = WeChatUtil.enterprisePayment(openid, appid, mchid,     nonce_str, partner_trade_no, re_user_name, jine, desc,     spbill_create_ip, check_name, key, zfpath);   // 成功   if (flag)   {    return "SUCCESS";   }  }  catch (Exception e)  {   System.err.println(e.getStackTrace());  }  return "FAIL"; }

/**  * 获取openid  *   * @description  * @param appid  * @param secret  * @param code  * @return  * @author shaomiao  */ public static String getByOpenid(String appid, String secret, String code) {  String url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid="    + appid + "&secret=" + secret + "&code=" + code    + "&grant_type=authorization_code";  String jsonstring = WeChatUtil.getJsonString(url);  JSONObject json1 = JSONObject.parseObject(jsonstring);  String openid = json1.get("openid").toString();  return openid; }

 /**  * 企业付款  *   * @description  * @param openid  * @param appid  * @param mchid 商户id  * @param nonce_str  * @param partner_trade_no  * @param re_user_name  * @param jine  * @param desc  * @param spbill_create_ip  * @param check_name  * @return  * @author Jobs  * @throws IOException  * @throws ClientProtocolException  */ public static boolean enterprisePayment(String openid, String appid,   String mchid, String nonce_str, String partner_trade_no,   String re_user_name, int jine, String desc, String spbill_create_ip,   String check_name, String key, String zfpath) throws Exception {  boolean getSuccess = true;  if (null != openid)  {   // zf   Map<String, String> params_map = new LinkedHashMap<String, String>();   StringBuffer param = new StringBuffer();   // appid   param.append("mch_appid=" + appid);   // 商户id   param.append("&mchid=" + mchid);   // 随机字符串   // param.append("&nonce_str="   // + ZifwUtil.string2MD5(new Date().getTime() + ""));   param.append("&nonce_str=" + nonce_str);   // 订单号自定义   param.append("&partner_trade_no=" + partner_trade_no);   param.append("&openid=" + openid);   // 校验用户姓名选项   /**    * NO_CHECK：不校验真实姓名    * FORCE_CHECK：强校验真实姓名（未实名认证的用户会校验失败，无法转账）    * OPTION_CHECK：针对已实名认证的用户才校验真实姓名（未实名认证用户不校验，可以转账成功）    */   param.append("&check_name=" + check_name);   // 收款用户姓名   param.append("&re_user_name=" + re_user_name);   // 金额   param.append("&amount=" + jine);   // 企业付款描述信息   param.append("&desc=" + desc);   // Ip地址   param.append("&spbill_create_ip=" + spbill_create_ip);   String[] params = param.toString().split("&");   Arrays.sort(params);   param = new StringBuffer();   for (String p : params)   {    String[] value = p.split("=");    params_map.put(value[0], value[1]);    param.append(value[0] + "=" + value[1] + "&");   }   // 签名最后   String sign = ZifwUtil.string2MD5(param.toString() + "key=" + key)     .toUpperCase();   params_map.put("sign", sign);   String reqStr = ZifwUtil.toXml(params_map);   // ZHENGSHU   CloseableHttpClient httpclient = certificateValidation(zfpath,     mchid);   HttpPost httppost = new HttpPost(     "https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers");   StringEntity myEntity = new StringEntity(reqStr, "UTF-8");   httppost.setEntity(myEntity);   System.out.println("executing request" + httppost.getRequestLine());   CloseableHttpResponse response = httpclient.execute(httppost);   System.out.println(response.getStatusLine());   HttpEntity resEntity = response.getEntity();   InputStreamReader reader = new InputStreamReader(     resEntity.getContent(), "UTF-8");   char[] buff = new char[1024];   int length = 0;   StringBuffer strhuxml = new StringBuffer();   while ((length = reader.read(buff)) != -1)   {    strhuxml.append(new String(buff, 0, length));    System.out.println(new String(buff, 0, length));   }   // httpclient.close();   httpclient.getConnectionManager().shutdown();   // String ret = ZifwUtil.post(   // "https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers",   // reqStr);   // 解析传过来的xml   Document document = DocumentHelper.parseText(strhuxml.toString());   // 得到xml根元素   Element root = document.getRootElement();   // 得到根元素的所有子节点   List<Element> elementList = root.elements();   String errors = "";   for (Element e : elementList)   {    // result_code业务    if ("return_code".equals(e.getName())      && !"SUCCESS".equals(e.getText()))    {     getSuccess = false;    }    if ("result_code".equals(e.getName())      && !"SUCCESS".equals(e.getText()))    {     getSuccess = false;    }   }  }  return getSuccess; }

 /**  * 验证证书公共方法  *   * @description  * @param zfpath 证书的路径  * @param mchid 商户id  * @return  * @throws Exception  * @author Jobs  */ // shanghuid // 验证证书 @SuppressWarnings("deprecation") public static CloseableHttpClient certificateValidation(String zfpath,   String mchid) throws Exception {  // 指定读取证书格式为PKCS12  KeyStore keyStore = KeyStore.getInstance("PKCS12");  // 证书地址  FileInputStream instream = new FileInputStream(new File(zfpath));  try  {   keyStore.load(instream, mchid.toCharArray());  }  finally  {   instream.close();  }  // Trust own CA and all self-signed certs  SSLContext sslcontext = SSLContexts.custom()    .loadKeyMaterial(keyStore, mchid.toCharArray()).build();  // Allow TLSv1 protocol only  SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(    sslcontext, new String[] { "TLSv1" }, null,    SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);  CloseableHttpClient httpclient = HttpClients.custom()    .setSSLSocketFactory(sslsf).build();  return httpclient; }

/**  * 微信支付拼接xml  *   * @param params  * @return  */ public static String toXml(Map<String, String> params) {  String xml = "<xml>";  for (String key : params.keySet())  {   if ("body".equals(key) || "attach".equals(key)     || "sign".equals(key))   {    xml += "<" + key + "><![CDATA[" + params.get(key) + "]]></"      + key + ">";   }   else   {    xml += "<" + key + ">" + params.get(key) + "</" + key + ">";   }  }  xml += "</xml>";  return xml; }

/***  * MD5加码 生成32位md5码  */ public static String string2MD5(String inStr) {  StringBuffer buf = new StringBuffer();  try  {   MessageDigest md = MessageDigest.getInstance("MD5");   md.update(inStr.getBytes("utf-8"));   byte b[] = md.digest();   int i;   for (int offset = 0; offset < b.length; offset++)   {    i = b[offset];    if (i < 0)     i += 256;    if (i < 16)     buf.append("0");    buf.append(Integer.toHexString(i));   }  }  catch (Exception e)  {   e.printStackTrace();  }  return buf.toString(); }