我正在构建一个用 go 和 gin 编写的 API，它将 blob 上传到 Azure 存储。这是代码:
package main
import (
"context"
"fmt"
"log"
"net/http"
"net/url"
"github.com/Azure/azure-storage-blob-go/azblob"
"github.com/gin-gonic/gin"
)
func main() {
router := gin.Default()
router.POST("/upload", func(c *gin.Context) {
accountName := "blablabla"
accountKey := "mykey"
containerName := "testblabla"
blobName := c.PostForm("blobName")
credential, err := azblob.NewSharedKeyCredential(accountName, accountKey)
if err != nil {
log.Fatal("Erro ao realizar nova conexão com azure", err)
return
} else {
fmt.Println("Sucesso ao se conectar com o azure")
}
u, err := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net/%s/%s", accountName, containerName, blobName))
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{
"Erro ao ler URL do container": err,
})
log.Fatal("Erro ao ler URL do container", err)
return
} else {
fmt.Println("Sucesso ao ler URL do container, eu passei por aqui")
c.JSON(200, gin.H{
"Sucesso ao ler URL do container": "Eu passei por aqui",
})
}
blobURL := azblob.NewBlockBlobURL(*u, azblob.NewPipeline(credential, azblob.PipelineOptions{}))
c.JSON(200, gin.H{
"Sucesso ao ler URL do container": "Próximo passo",
})
log.Println("Sucesso ao ler URL do container")
form, err := c.MultipartForm()
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{
"Erro ao ler arquivo": err.Error(),
})
log.Println("Erro ao ler arquivo", err)
return
}
files := form.File["upload"]
if len(files) == 0 {
c.JSON(http.StatusBadRequest, gin.H{
"Erro ao enviar arquivo para container": "Nenhum arquivo enviado",
})
log.Println("Nenhum arquivo enviado", err)
return
}
file := files[0]
fmt.Println("eu passei por files", file)
log.Println(file.Filename)
src, err := file.Open()
if err != nil {
c.JSON(500, gin.H{
"Erro ao abrir arquivo": err,
})
log.Fatal("Erro ao abrir arquivo", err)
return
} else {
fmt.Println("Sucesso ao abrir arquivo")
c.JSON(200, gin.H{
"Sucesso ao abrir arquivo": "Proximo passo",
})
}
options := azblob.UploadStreamToBlockBlobOptions{
MaxBuffers: 3,
}
_, err = azblob.UploadStreamToBlockBlob(context.Background(), src, blobURL, options)
if err != nil {
fmt.Println("deu erro, mas passei por aqui")
c.JSON(http.StatusInternalServerError, "Deu erro, mas passei aqui")
c.JSON(http.StatusInternalServerError, gin.H{
"Erro ao enviar arquivo para container": err.Error(),
})
log.Println("Erro ao enviar arquivo para container", err)
return
} else {
c.JSON(http.StatusOK, gin.H{
"message": "Arquivo enviado com sucesso!",
})
fmt.Println("Sucesso ao enviar arquivo")
}
})
router.Run(":8080")
}
以下是使用 Postman 测试此 API 的步骤:
- 选择POST作为方法
- 输入 API 的 URL
- 选择正文选项卡下的表单数据
- 在键列中，我输入 blob 的名称，然后选择类型文件，然后选择我的文件
- 发送请求
我收到此错误:
Erro ao enviar arquivo para container write error: -> github.com/Azure/azure-storage-blob-go/azblob.newStorageError, C:/Users/rodri/go/pkg/mod/github.com/!azure/<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="1978636c6b7c346a6d766b787e7c347b75767b347e76596f2937282c3729" rel="noreferrer noopener nofollow">[email protected]</a>/azblob/zc_storage_error.go:42
===== RESPONSE ERROR (ServiceCode=InvalidUri) =====
Description=The requested URI does not represent any resource on the server.
RequestId:a31b34a1-401e-000c-3aa8-6fb698000000
Time:2023-04-15T14:43:41.9699330Z, Details:
Code: InvalidUri
UriPath: https://blablabla.blob.core.windows.net/teste/?blockid=mLa1s8Y9Tu6Tqw0umZ2kiwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==&comp=block&timeout=61
PUT https://blablabla.blob.core.windows.net/teste/?blockid=mLa1s8Y9Tu6Tqw0umZ2kiwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA%3D%3D&comp=block&timeout=61
Authorization: REDACTED
Content-Length: [5]
User-Agent: [Azure-Storage/0.15 (go1.20; Windows_NT)]
X-Ms-Client-Request-Id: [5e531a97-f854-476c-49f7-407a29468e89]
X-Ms-Date: [Sat, 15 Apr 2023 14:43:41 GMT]
X-Ms-Version: [2020-10-02]
--------------------------------------------------------------------------------
RESPONSE Status: 400 The requested URI does not represent any resource on the server.
Content-Length: [438]
Content-Type: [application/xml]
Date: [Sat, 15 Apr 2023 14:43:41 GMT]
Server: [Microsoft-HTTPAPI/2.0]
X-Ms-Error-Code: [InvalidUri]
X-Ms-Request-Id: [a31b34a1-401e-000c-3aa8-6fb698000000]
为什么？
最佳答案
出了什么问题？
请求中没有名为 blobName 的表单字段。
blobName := c.PostForm("blobName")
证据
错误消息对此很清楚:
Code: InvalidUri
UriPath: https://blablabla.blob.core.windows.net/teste/?blockid=mLa1s8Y9Tu6Tqw0umZ2kiwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==&comp=block&timeout=61
^^^
比较
fmt.Sprintf("https://%s.blob.core.windows.net/%s/%s", accountName, containerName, blobName)
^^^
很明显blobName是空的。
说明
此 postman 请求
原始 HTTP 请求看起来像这样:
POST /anything HTTP/1.1
Host: httpbin.org
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryeobf4rJjB8V8AYfS
----WebKitFormBoundaryeobf4rJjB8V8AYfS
Content-Disposition: form-data; name="upload"; filename="sample.pdf"
<content omitted>
----WebKitFormBoundaryeobf4rJjB8V8AYfS
Content-Disposition: form-data; name="blobName"
myBlobName
----WebKitFormBoundaryeobf4rJjB8V8AYfS
如果此类请求由您的处理程序处理，
blobName := c.PostForm("blobName")将是myBlobName文件 := form.File["上传"]; file := files[0]获取描述上传文件的文件头file.Filename将是sample.pdf
关于azure - 使用 go - azure 上传 blob，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/76023001/