2016-04-15 37 views

答えて

0

これは、ここでtemp_storage_pathは、ローカルアプリケーションTEMPパス

import java.io.File; 
import java.io.FileNotFoundException; 
import java.io.IOException; 
import java.io.InputStream; 
import com.wcs.wcslib.vaadin.widget.multifileupload.ui.UploadFinishedHandler; 

public class ImageUploadFinishedHandler implements UploadFinishedHandler { 

    VerticalLayout imageLayout; 

    public ImageUploadFinishedHandler(VerticalLayout imageLayout) { 
     this.imageLayout = imageLayout; 
    } 

    @Override 
    public void handleFile(InputStream stream, String fileName, String arg2, long arg3) { 
     File file = null; 
     try { 
      file = new File("temp_storage_path"+fileName); 
      OutputStream outputStream = new FileOutputStream(file); 
      int read = 0; 
      byte[] bytes = new byte[1024]; 
      while ((read = stream.read(bytes)) != -1) { 
       outputStream.write(bytes, 0, read); 
      } 
      outputStream.close(); 
     } catch (FileNotFoundException e) { 
      return; 
     } catch (IOException e) { 
      return; 
     } 
     this.imageLayout.removeAllComponents(); 

     Image previewImage = new Image(); 
     this.imageLayout.addComponent(previewImage); 
     previewImage.setWidth("100px"); 
     previewImage.setHeight("100px"); 
     previewImage.setSource(new FileResource(file)); 
    } 

} 
でアップロード・ハンドラ のための私のコードです
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