Java 使用apache commons从html表单解析listbox值
我试图用ApacheCommonsFileUpload解析一个HTML表单,所有文本框值都正常传递,提交的文件也一样,但我无法解析Listbox值。解析的代码是Java 使用apache commons从html表单解析listbox值,java,html,form-submit,apache-commons,Java,Html,Form Submit,Apache Commons,我试图用ApacheCommonsFileUpload解析一个HTML表单,所有文本框值都正常传递,提交的文件也一样,但我无法解析Listbox值。解析的代码是 @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { ServletFileUpload uplo
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
ServletFileUpload upload = new ServletFileUpload();
try {
@SuppressWarnings("unchecked")
List<FileItem> items = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(req);
for (int i=0; i<items.size(); i++){
System.out.println(items.get(i).getName());
System.out.println(items.get(i).getFieldName());
System.out.println(items.get(i).getString());
}
} catch (FileUploadException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
}
@覆盖
受保护的void doPost(HttpServletRequest-req、HttpServletResponse-resp)
抛出ServletException、IOException{
ServletFileUpload upload=新建ServletFileUpload();
试一试{
@抑制警告(“未选中”)
列表项=新ServletFileUpload(新DiskFileItemFactory()).parseRequest(req);
对于(int i=0;i检查您的HTML表单是否指示它是一个多部分表单(即enctype='multipart/formdata'))
在解析之前,首先验证请求servlet是否包含多部分表单(即执行isMultipartContent方法)
如果您发布正在解析的HTML页面和e2.printStackTrace()的错误消息(如果有),这也将非常有用