英文:
Golang how can I get full file path
问题
我一直在搜索，但找不到在Go语言中获取完整文件路径的方法。我有一个常规的HTML表单，然后我尝试在后端获取所有的信息。
<form method="post" enctype="multipart/form-data" action="/uploads"><p><input type="file" name="my file" id="my file"></p><p><input type="submit" value="Submit"></p></form>func upload() {f, h, err := r.FormFile("my file")if err != nil {log.Println(err)http.Error(w, "Error Uploading", http.StatusInternalServerError)return}defer f.Close()println(h.Filename)}// 这样可以得到文件名，我想要的是完整路径我尝试过使用`filepath.Dir()`，但它没有起作用。<details><summary>英文:</summary>I been searching around and can not find a way to get the full file path in Go . I have a regular html form and then I try to get all the information in the backend<form method="post" enctype="multipart/form-data" action="/uploads"><p><input type="file" name="my file" id="my file"></p><p><input type="submit" value="Submit"></p>func upload() {f,h,err := r.FormFile("my file")if err != nil {log.Println(err)http.Error(w,"Error Uploading",http.StatusInternalServerError)return}defer f.Close()println(h.Filename)}// This gets me the name of the file, I would like the full path of itI have tried **file path.dir()** but that does not do anything</details># 答案1**得分**: 11这是一个示例：```gopackage mainimport ("fmt""path/filepath")func main() {abs,err := filepath.Abs("./hello.go")if err == nil {fmt.Println("绝对路径:", abs)}}
英文:
here is an example:
package mainimport ("fmt""path/filepath")func main() {abs,err := filepath.Abs("./hello.go")if err == nil {fmt.Println("Absolute:", abs)}}
答案2
得分: 4
据我所知，你无法从代码中的f值获取文件路径。因为文件数据尚未存储在磁盘中。
如果你想将文件存储到路径中，可以按照以下方式进行操作：
f, h, err := r.FormFile("myfile")if err != nil {log.Println("err:", err)http.Error(w, "Error Uploading", http.StatusInternalServerError)return}defer f.Close()fmt.Println("filename:", h.Filename)bytes, err := ioutil.ReadAll(f)if err != nil {fmt.Println(err)}filepath := "./aa" //设置你的文件名和文件路径err = ioutil.WriteFile("aa", bytes, 0777)if err != nil {fmt.Println(err)}
请注意，这只是将文件存储到指定路径的示例代码。你需要根据实际需求修改文件路径和文件名。
英文:
As far as I know, you cannot get the filepath form the f value in your code. Because the file data is not stored in disk yet.
And you want to store the file to a path, you can do it this way.
f,h,err := r.FormFile("myfile")if err != nil{log.Println("err: ",err)http.Error(w,"Error Uploading",http.StatusInternalServerError)return}defer f.Close()fmt.Println("filename: ",h.Filename)bytes, err := ioutil.ReadAll(f)if err != nil {fmt.Println(err)}filepath := "./aa" //set your filename and filepatherr = ioutil.WriteFile("aa", bytes, 0777)if err != nil {fmt.Println(err)}
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论