package servlet; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Iterator; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; public class UploadPhotoServlet extends HttpServlet { public static String filename = null; /** * */ private static final long serialVersionUID = 1L; public void doGet(HttpServletRequest request,HttpServletResponse response){ } @SuppressWarnings("rawtypes") public void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException{ DiskFileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); factory.setSizeThreshold(1024 * 1024); List items = null; try { items = upload.parseRequest(request); } catch (FileUploadException e) { e.printStackTrace(); } Iterator iter = items.iterator(); while(iter.hasNext()){ FileItem item = (FileItem) iter.next(); if(!item.isFormField()){ // 根据时间戳创建头像文件 filename = System.currentTimeMillis() + ".jpg"; System.out.println(request.getContextPath()); /*File f = new File(getServletContext().getRealPath("upload"));*/ File f = new File("D://image"); if (!f.exists()) { f.mkdir(); } String imgsrc = f + "/" + filename; // 复制文件 InputStream is = item.getInputStream(); FileOutputStream fos = new FileOutputStream(imgsrc); byte b[] = new byte[1024 * 1024]; int length = 0; while (-1 != (length = is.read(b))) { fos.write(b, 0, length); } fos.flush(); fos.close(); }else { System.out.println(item.getFieldName()); String value = item.getString(); value = new String(value.getBytes("ISO-8859-1"), "UTF-8"); System.out.println(value); } } //request.setAttribute("filename", filename); //request.getRequestDispatcher("/showPhoto").forward(request, response); response.sendRedirect("/ServletTest/showPhoto?filename="+filename); } }