common文件上传

最新推荐文章于 2019-09-07 20:20:32 发布

翻译最新推荐文章于 2019-09-07 20:20:32 发布 · 251 阅读

一配置server.xml

![配置](https://img-blog.youkuaiyun.com/20180914165552692?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1Nzg3OTQ1/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70)

二代码实现
request.setCharacterEncoding(“utf-8”);
PrintWriter out=response.getWriter();
String uploadFileName=”“; //上传的文件名
String fieIdName=”“; //表单字段元素的name属性
boolean isMultipart=ServletFileUpload.isMultipartContent(request);

      String uploadFilePath=request.getSession().getServletContext().getRealPath("upload/");    //“upload/”是你项目下upload文件夹中
      if(isMultipart)   //如果表单是二进制类型表单
      {
         FileItemFactory factory=new DiskFileItemFactory();
         ServletFileUpload upload=new ServletFileUpload(factory);
         try{
             List<FileItem> item=upload.parseRequest(request);
             for (FileItem fi : item) {
                //如果是普通表单
            if(fi.isFormField()){
                fieIdName=fi.getFieldName();
                //判断来拿值  如果表单name="user"那么进if 通过fi.getString("UTF-8");可以拿到该文本的value值
                if(fieIdName.equals("user"))
                {
                                out.print(fi.getString("UTF-8")+"上传了文件</br>");
                }
            //否则就是文件表单
            }else{
                String fileName=fi.getName();
                if(fileName!=null&&!fileName.equals(""))
                {
                    File fullFile=new File(fi.getName());
                    File saveFile=new File(uploadFilePath,fullFile.getName());
                    fi.write(saveFile);
                    uploadFileName=fullFile.getName();
                    out.print("上传成功后的文件名是:"+uploadFileName);
                }
            }
        }
         }catch(Exception e){

         }

      }

jar包我也上传了优快云:https://download.youkuaiyun.com/download/qq_35787945/10667466