golang開發問題

開發問題：
How to find out which types implement which interface in Golang?
How do you quickly find the implementation(s) of an interface in Golang?

Ctrl + Alt+b

Ctrl +b show usage

認證問題1：

2018/03/09 10:44:13 check userEcaCert signature:  x509: invalid signature: parent certificate cannot sign this kind of certificate

解決：

ecaCert.BasicConstraintsValid = trueecaCert.IsCA = trueecaCert.KeyUsage = x509.KeyUsageCertSign

認證問題2：

根憑證、二級認證、三級認證都能經過https驗證都需要加上以上三個參數

D:\project>server.exe2018/03/13 09:38:39 http: TLS handshake error from 127.0.0.1:56660: tls: failed to verify client's certificate: x509: certificate signed by unknown authority (possibly because of "x509: invalid signature: parent certificate cannot sign this kind of certificate" while trying to verify candidate authority certificate "usechaineca")Cert := &x509.Certificate{        SerialNumber: big.NewInt(1658),        Subject: pkix.Name{            Country: []string{"CN"},            Organization: []string{"usechainEca"},            OrganizationalUnit: []string{"eca"},        },        NotBefore: time.Now(),        NotAfter: time.Now().AddDate(10,0,0),        SubjectKeyId: []byte{1,2,3,4,6},        ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth, x509.ExtKeyUsageServerAuth},        BasicConstraintsValid: true,        IsCA: true,        KeyUsage: x509.KeyUsageDigitalSignature|x509.KeyUsageCertSign,    }

如果是openssl產生的則需要用戶端認證改成如下格式：

openssl genrsa -out client.key 2048openssl req -new -key client.key -subj "/CN=client" -out client.csropenssl x509 -req -in client.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out client.crt -days 5000改成：openssl genrsa -out client.key 2048openssl req -new -key client.key -subj "/CN=client" -out client.csrecho extendedKeyUsage=clientAuth > extfile.confopenssl x509 -req -in client.csr -CA ca.crt -CAkey ca.key -CAcreateserial -extfile extfile.conf -out client.crt -days 5000