利用jsp上传excel

一、上传
引入包：org.apache.commons.fileupload.*
jsp代码： DiskFileUpload fu = new DiskFileUpload();
      List list = fu.parseRequest(request);
      if(list != null){
       System.out.println(list.size());
       String [] nsrbms = null;
       for (int i = 0;i < list.size(); i++){
          FileItem fi = (FileItem)list.get(i);
          if(fi.isFormField()) //这是用来确定是否为文件属性,
              {
                 String fieldName = fi.getFieldName(); //这里取得表单名
                 String fieldvalue=fi.getString(); //这里取得表单值
                 if(fieldName.equals("sbqlx")){
                    searchSbqlx = fieldvalue;
                 }else if(fieldName.equals("ruleId")){
                    searchRuleId = fieldvalue;
                 }else if(fieldName.equals("qylx")){
                    searchQylx = fieldvalue;
                 }else if(fieldName.equals("sssqQ")){