java微信公众号企业付款开发

java微信公众号企业付款开发

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 zfpathKiTLyZL = "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";

}

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 params_map = new LinkedHashMap();

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 : http://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 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 params)

{

String 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 += "";

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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