java - 如何将上传的图像保存到我的C盘

Question

这是我试图在这里完成的后续工作/sf/ask/511974571/

我已经设法将图像作为UploadedFile对象,但我似乎无法将其保存到磁盘.我想在本地保存它(C:\Temp例如),这样当我运行我的应用程序时,我可以test.jpg从我的桌面上传文件(例如)并将其保存在服务器上(例如,在C:\Temp).

我的bean非常简单:

import org.apache.myfaces.custom.fileupload.UploadedFile;
public class PatientBB {  

private UploadedFile uploadedFile; 

public UploadedFile getUploadedFile(){
return this.uploadedFile; 
}  
.
public void setUploadedFile(UploadedFile uploadedFile){     
this.uploadedFile = uploadedFile; 
} 
.
public String actionSubmitImage(){
//This is th part I need help with. how do I save it in my C?
}

我非常感谢所有的帮助,谢谢!

Answer 1

据我所知,根据javaDoc,你应该可以做到

uploadedFile.getInputStream();

然后将数据从那里推送到FileOutputStream.

伪:

 InputStream is = uploadedFile.getInputStream();
 byte[] buffer = new byte[uploadedFile.getLength()); //This can be more space-efficient if necessary
 is.read(buffer);
 File f = new File("C:\\tmp\\" + uploadedFile.getFilename());
 f.createNewFile();
 FileOutputStream fos = new FileOutputStream(f);
 fos.write(buffer);

那有意义吗？这就是你要找的东西吗？