java微信支付测试秘钥_java 微信开发刷卡支付获取沙箱密钥

r囧r小猫 2022-11-08 14:11 124阅读 0赞

刚开始只看了一下帮助文档，拼接上参数，获取验签秘钥API。但是测的时候就直接报，“获取沙箱密钥失败，确保交易密钥是否正确”。

拿着问题到网上找，发现都是要钱的东西。最后扒了一下sdk源码原来生成签名的时候还要提供商户平台的密钥key.

微信帮助文档还是有一些坑的。

![dfc8bf6cb0b1a9102a53d8d902080d9a.png][]

![ad8472c1c2ac2afa7cac7557e9ad2438.png][]

明白了这一点，问题就解决了。

上代码，上代码

// 沙箱请求

public void shabox() \{

String url = "https://api.mch.weixin.qq.com/sandboxnew/pay/getsignkey";

String mch\_id = ""; //商户号

String nonce\_str = String.valueOf(System.currentTimeMillis());

String str = "mch\_id=" + mch\_id + "&nonce\_str=" + nonce\_str

\+ "&key=这里添密钥";

String sign = Md5.md5Str(str).toUpperCase();//签名md5加密

try \{

String params = Utils.strToXml(mch\_id, nonce\_str, sign);//拼接xml

String result = HttpClientService.post(url, params);//发起请求

System.out.println("\*\*\*" + result);

\} catch (Exception e) \{

// TODO Auto-generated catch block

e.printStackTrace();

1》、md5 加密代码

public static String md5Str(String str) \{

MessageDigest messageDigest = null;

try \{

messageDigest = MessageDigest.getInstance("MD5");

messageDigest.reset();

messageDigest.update(str.getBytes("UTF-8"));

\} catch (NoSuchAlgorithmException e) \{

e.printStackTrace();

\} catch (UnsupportedEncodingException e) \{

e.printStackTrace();

byte\[\] byteArray = messageDigest.digest();

StringBuffer md5StrBuff = new StringBuffer();

for (int i = 0; i < byteArray.length; i++) \{

if (Integer.toHexString(0xFF & byteArray\[i\]).length() == 1)

md5StrBuff.append("0").append(

Integer.toHexString(0xFF & byteArray\[i\]));

else

md5StrBuff.append(Integer.toHexString(0xFF & byteArray\[i\]));

return md5StrBuff.toString();

2》、拼接xml....这里纯手工拼接

//沙箱验证

public static String strToXml(String mch\_id,String nonce\_str,String sign)\{

StringBuffer sb = new StringBuffer();

sb.append("");

sb.append(mch\_id);

sb.append("");

sb.append(nonce\_str);

sb.append("");

sb.append(sign);

sb.append("");

return sb.toString();

3》、post 请求代码

public static String post(String url, String jsonParam) throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException, IOException, UnrecoverableKeyException \{

String res = "";

// 创建默认的httpClient实例.

CloseableHttpClient httpclient = HttpClients.createDefault();

// 创建httppost

HttpPost httppost = new HttpPost(url);

try \{

StringEntity strEntity = new StringEntity(jsonParam, "utf-8");// 解决中文乱码问题

strEntity.setContentEncoding("UTF-8");

strEntity.setContentType("application/json");

httppost.setEntity(new StringEntity(jsonParam,"UTF-8"));

System.out.println("executing request " + httppost.getURI());

CloseableHttpResponse response = httpclient.execute(httppost);

try \{

HttpEntity entity = response.getEntity();

if (entity != null) \{

System.out.println("--------------------------------------");

res = EntityUtils.toString(entity, "UTF-8");

System.out.println("Response content: " + res);

System.out.println("--------------------------------------");

\} finally \{

response.close();

\} catch (ClientProtocolException e) \{

e.printStackTrace();

\} catch (UnsupportedEncodingException e1) \{

e1.printStackTrace();

\} catch (IOException e) \{

e.printStackTrace();

\} finally \{

// 关闭连接,释放资源

try \{

httpclient.close();

\} catch (IOException e) \{

e.printStackTrace();

return res;

\}4》jar  包 ，主要用了HttpClient，可以在网上直接下载。

ok. 获取沙箱密钥的坑已经排除

[dfc8bf6cb0b1a9102a53d8d902080d9a.png]: /images/20221023/134f52c7aa2d44698ea0fb0ff5e32236.png
[ad8472c1c2ac2afa7cac7557e9ad2438.png]: /images/20221023/29da9432898f499b876c9f7af893dd9e.png