Extjs4 上传文件 如何设置谷歌浏览器的默认路径C:/fakepath？

Question

Extjs4上传文件，如果用谷歌浏览器，它会给文件一个默认的上传路径，而把真实路径隐藏起来了。如何设置啊、?

Answer 1

后台Java[code="java"]package controller;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
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.DiskFileUpload;
import org.apache.commons.fileupload.FileItem;

public class upload extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    this.doPost(request, response);
}

@SuppressWarnings("deprecation")
public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    String hello = request.getParameter("savePath");
    String nttame = request.getParameter("name");
    HttpSession session = request.getSession();//通过session传参
    System.out.println("接收参数，hello="+hello+",name="+nttame);

    String name="";
    try {
        DiskFileUpload fu = new DiskFileUpload();
        // 设置允许用户上传文件大小,单位:字节，这里设为2m
        fu.setSizeMax(5 * 1024 * 1024 * 1024);
        // 设置最多只允许在内存中存储的数据,单位:字节
        fu.setSizeThreshold(10 * 1024 * 1024);
        // 设置一旦文件大小超过getSizeThreshold()的值时数据存放在硬盘的目录
        fu.setRepositoryPath(System.getProperty("java.io.tmpdir"));
        fu.setHeaderEncoding("UTF-8");//解决中文文件名乱码。
        // 开始读取上传信息
        List fileItems = fu.parseRequest(request);
        // 依次处理每个上传的文件
        Iterator iter = fileItems.iterator();
        System.out.println(fileItems.size());
        while (iter.hasNext()) {
            FileItem item = (FileItem) iter.next();
            if (item.isFormField()) {//表单域的值
                System.out.println("表单域名" + item.getFieldName());
                System.out.println("表单值" + item);//如果不是文件表单域
                System.out.println("名字："+item.getString());
            } else {
                name = item.getName();
                System.out.println("文件名:"+name);
                long size = item.getSize();
                if (name != null && !name.equals("") && size == 0) {
                    continue;
                }
                String path = request.getRealPath("");
                File uploadFolder = new File(path + "/upload");
                if (!uploadFolder.exists())
                    uploadFolder.mkdirs();
                File file=new File(path + "/upload/" + name);
                item.write(file);
            }
        }
        response.setContentType("text/html");// 必须设置返回类型为text，否则ext无法正确解析json字符串
        response.setCharacterEncoding("UTF-8");//设置编码字符集为utf-8，否则ext无法正确解析
        PrintWriter outs = response.getWriter();
        outs.write("{success:true}");
        outs.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

}
[/code]