杨晴瑄老公,水源刀剑,惠州在线
使用 http client 请求 https 的 api 时出现 the certificate cannot be verified up to a trusted certification authority
异常,并且证书已经传入。
下面就是问题代码:
public class program { public static void main(string[] args) { var url = @"https://xxx.xxx.xxx.xxx:xxxx/xxx-web/services/xxxx?wsdl"; var handler = new httpclienthandler { clientcertificateoptions = clientcertificateoption.manual, clientcertificates = { new x509certificate2(@"e:\cert\roottrust.cer","11111111"), new x509certificate2(@"e:\cert\middletrust.cer","11111111"), new x509certificate2(@"e:\cert\wskey.pfx","ws654321") } }; var webrequest = new httpclient(handler); var result = webrequest.getstringasync(url).getawaiter().getresult(); console.writeline(result); } }
因为在发出 https 请求的时候,httpclient
都会检查 ssl 证书是否合法。如果不合法的话,就会导致抛出异常信息,而对方给出的证书是自签发的测试接口的证书,所以不是一个合法的 ssl 证书。
在 httpclienthandler
当中会有一个 servercertificatecustomvalidationcallback
事件,该事件用于判定证书验证是否通过。我们可以挂接该事件,然后逻辑编写为直接返回 true
结果,这样就会忽略掉证书异常的情况。
最新的代码如下:
public class program { public static void main(string[] args) { var url = @"https://xxx.xxx.xxx.xxx:xxxx/xxx-web/services/xxxx?wsdl"; var handler = new httpclienthandler { servercertificatecustomvalidationcallback = (message, certificate2, arg3, arg4) => true, clientcertificateoptions = clientcertificateoption.manual, clientcertificates = { new x509certificate2(@"e:\cert\roottrust.cer","11111111"), new x509certificate2(@"e:\cert\middletrust.cer","11111111"), new x509certificate2(@"e:\cert\wskey.pfx","ws654321") } }; var webrequest = new httpclient(handler); var result = webrequest.getstringasync(url).getawaiter().getresult(); console.writeline("xx"); } }
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