使用示例的demo无法初始化client

[colemanpeng]

使用例子中的代码无法初始化client
{"file":"/Users/apple/business/kuzi-app/common/weixinPay/weixin_pay_client.go:64","func":"kuzi/app/common/weixinPay.NewWeixinPayClient","level":"error","msg":"new wechat pay client err:init client setting err:generate authorization err:you must set privatekey to use SHA256WithRSASigner","time":"2021-09-02T09:09:29+08:00"}

`import (
"context"
"crypto/rsa"
"net/http"

//"kuzi/app/app/common"
"kuzi/app/configs"

"github.com/sirupsen/logrus"
"github.com/wechatpay-apiv3/wechatpay-go/core"
"github.com/wechatpay-apiv3/wechatpay-go/core/option"
"github.com/wechatpay-apiv3/wechatpay-go/utils"

)

var weixinPayClient *core.Client

// 示例参数，实际使用时请自行初始化
var (
mchID string // 商户号
mchCertificateSerialNumber string // 商户证书序列号
mchPrivateKey *rsa.PrivateKey // 商户私钥
mchAPIv3Key string // 商户APIv3密钥
customHTTPClient *http.Client // 可选，自定义客户端实例
)

func InitWeixinPayClient() {
mchID = configs.AppConfig.Weixin.MchId
mchCertificateSerialNumber = configs.AppConfig.Weixin.MchCertificateSerialNumber
mchPrivateKey = GetPrivateKey()
mchAPIv3Key = configs.AppConfig.Weixin.MchAPIv3Key
weixinPayClient = NewWeixinPayClient()

}

//获取商户私钥
func GetPrivateKey() *rsa.PrivateKey {
// 加载商户私钥
privateKeyPath := configs.AppConfig.Weixin.MchPrivateKeyPath
privateKey, err := utils.LoadPrivateKeyWithPath(privateKeyPath)

if err != nil {
	logrus.Errorf("load private err:%s", err.Error())
	return nil
}

return privateKey

}

func NewWeixinPayClient() *core.Client {
ctx := context.Background()
opts := []core.ClientOption{
// 一次性设置 签名/验签/敏感字段加解密，并注册 平台证书下载器，自动定时获取最新的平台证书
option.WithWechatPayAutoAuthCipher(mchID, mchCertificateSerialNumber, mchPrivateKey, mchAPIv3Key),
// 设置自定义 HTTPClient 实例，不设置时默认使用 http.Client{}，并设置超时时间为 30s
//option.WithHTTPClient(customHTTPClient),
}
client, err := core.NewClient(ctx, opts...)
if err != nil {
logrus.Errorf("new wechat pay client err:%s", err.Error())
return nil
}
return client
}`

• Go 版本：
• wechatpay-go 版本：0.2.6

[EmmetZC]

请确认下是不是 GetPrivateKey 失败了？

[colemanpeng]

确实是这个问题，多谢