本文为大家分享了java微信公众号企业付款的开发代码，供大家参考，具体内容如下

详情参照微信开发者文档 企业付款文档

java代码 定义所传递的参数

@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"; }

获取关注本公众号用户唯一标示 获取openid

java代码 获取openid 静态方法

/** * 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; }

企业付款的调用公共方法

java代码
post提交 xml参数
解析回调的xml

/** * 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; }

微信签名验证证书

验证证书公共方法

/** * 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; }

微信公共方法 字符串转xml

/** * 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; }

微信公共方法 字符串MD5

加密
用来加密签名

/*** * 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(); }

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