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import java.io.File;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class UploadServlet extends HttpServlet
{
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
DiskFileItemFactory factory = new DiskFileItemFactory();
String path = req.getRealPath("/upload");
factory.setRepository(new File(path));
factory.setSizeThreshold(1024 * 1024);
ServletFileUpload upload = new ServletFileUpload(factory);
try
{
List<FileItem> list = (List<FileItem>)upload.parseRequest(req);
for(FileItem item : list)
{
String name = item.getFieldName();
if(item.isFormField())
{// 普通表单值
String value = item.getString();
}
else
{// 上传文件
String value = item.getName();
int start = value.lastIndexOf("\\");
String fileName = value.substring(start + 1);
item.write(new File(path, fileName));
//
// OutputStream os = new FileOutputStream(new File(path, fileName));
//
// InputStream is = item.getInputStream();
//
// byte[] buffer = new byte[400];
//
// int length = 0;
//
// while((length = is.read(buffer)) != -1)
// {
// os.write(buffer, 0, length);
// }
//
// is.close();
// os.close();
}
}
}
catch(Exception ex)
{
ex.printStackTrace();
}
req.getRequestDispatcher("fileUploadResult.jsp").forward(req, resp);
}
}