我想使用我在json文件中定义的值来增强结构RunInstancesInput。
我通过将DescribeInstance的输出转换为json来创建json文件。
如果我理解该错误，则无法找到类型定义：BlockDeviceMapping，CapacityReservationSpecification等，等等。 所以也许我应该导入正确的库？ 这是我的代码：
package main
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
"encoding/json"
"fmt"
"io/ioutil"
)
func main() {
// read file
data, err := ioutil.ReadFile("./example.json")
if err != nil {
fmt.Print(err)
}
type RunInstancesInput struct {
AdditionalInfo *string `locationName:"additionalInfo" type:"string"`
BlockDeviceMappings []*BlockDeviceMapping `locationName:"BlockDeviceMapping" locationNameList:"BlockDeviceMapping" type:"list"`
CapacityReservationSpecification *CapacityReservationSpecification `type:"structure"`
ClientToken *string `locationName:"clientToken" type:"string"`
CpuOptions *CpuOptionsRequest `type:"structure"`
CreditSpecification *CreditSpecificationRequest `type:"structure"`
DisableApiTermination *bool `locationName:"disableApiTermination" type:"boolean"`
DryRun *bool `locationName:"dryRun" type:"boolean"`
EbsOptimized *bool `locationName:"ebsOptimized" type:"boolean"`
ElasticGpuSpecification []*ElasticGpuSpecification `locationNameList:"item" type:"list"`
ElasticInferenceAccelerators []*ElasticInferenceAccelerator `locationName:"ElasticInferenceAccelerator" locationNameList:"item" type:"list"`
HibernationOptions *HibernationOptionsRequest `type:"structure"`
IamInstanceProfile *IamInstanceProfileSpecification `locationName:"iamInstanceProfile" type:"structure"`
ImageId *string `type:"string"`
InstanceInitiatedShutdownBehavior *string `locationName:"instanceInitiatedShutdownBehavior" type:"string" enum:"ShutdownBehavior"`
InstanceMarketOptions *InstanceMarketOptionsRequest `type:"structure"`
InstanceType *string `type:"string" enum:"InstanceType"`
Ipv6AddressCount *int64 `type:"integer"`
Ipv6Addresses []*InstanceIpv6Address `locationName:"Ipv6Address" locationNameList:"item" type:"list"`
KernelId *string `type:"string"`
KeyName *string `type:"string"`
LaunchTemplate *LaunchTemplateSpecification `type:"structure"`
LicenseSpecifications []*LicenseConfigurationRequest `locationName:"LicenseSpecification" locationNameList:"item" type:"list"`
MaxCount *int64 `type:"integer" required:"true"`
MinCount *int64 `type:"integer" required:"true"`
Monitoring *RunInstancesMonitoringEnabled `type:"structure"`
NetworkInterfaces []*InstanceNetworkInterfaceSpecification `locationName:"networkInterface" locationNameList:"item" type:"list"`
Placement *Placement `type:"structure"`
PrivateIpAddress *string `locationName:"privateIpAddress" type:"string"`
RamdiskId *string `type:"string"`
SecurityGroupIds []*string `locationName:"SecurityGroupId" locationNameList:"SecurityGroupId" type:"list"`
SecurityGroups []*string `locationName:"SecurityGroup" locationNameList:"SecurityGroup" type:"list"`
SubnetId *string `type:"string"`
TagSpecifications []*TagSpecification `locationName:"TagSpecification" locationNameList:"item" type:"list"`
UserData *string `type:"string"`
}
// json data
var obj RunInstancesInput
// unmarshall it
err = json.Unmarshal(data, &obj)
if err != nil {
fmt.Println("error:", err)
}
}
当我尝试编译代码时，出现以下错误：
# command-line-arguments
./json.go:4:2: imported and not used: "github.com/aws/aws-sdk-go/aws"
./json.go:5:5: imported and not used: "github.com/aws/aws-sdk-go/aws/session"
./json.go:6:5: imported and not used: "github.com/aws/aws-sdk-go/service/ec2"
./json.go:23:29: undefined: BlockDeviceMapping
./json.go:24:40: undefined: CapacityReservationSpecification
./json.go:26:18: undefined: CpuOptionsRequest
./json.go:27:27: undefined: CreditSpecificationRequest
./json.go:31:33: undefined: ElasticGpuSpecification
./json.go:32:38: undefined: ElasticInferenceAccelerator
./json.go:33:26: undefined: HibernationOptionsRequest
./json.go:33:26: too many errors