在java中如何把下拉列表框中的值获取?jsp页面跳转到servlet里面,在servlet里获值!
答案:3 悬赏:50
解决时间 2021-01-14 18:06
- 提问者网友:美人性情
- 2021-01-14 03:47
在java中如何把下拉列表框中的值获取?jsp页面跳转到servlet里面,在servlet里获值!
最佳答案
- 二级知识专家网友:轻熟杀无赦
- 2021-01-14 04:28
如果jsp页面是form提交的话,直接在后台 request.GerParameter()获取便可以啊!获取
全部回答
- 1楼网友:蕴藏春秋
- 2021-01-14 06:51
public class RequestDemo2 extends HttpServlet {
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String value = request.getParameter("username");
if(value!=null&&!value.trim().equals("")){
System.out.println(value);
}
System.out.println("------------------------------");
Enumeration
while(e.hasMoreElements()){
String name = e.nextElement();
value = request.getParameter(name);
System.out.println(name + "="+value);
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
}
- 2楼网友:孤独入客枕
- 2021-01-14 06:04
public class RequestDemo2 extends HttpServlet {
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String value = request.getParameter("username");
if(value!=null&&!value.trim().equals("")){
System.out.println(value);
}
System.out.println("------------------------------");
Enumeration
while(e.hasMoreElements()){
String name = e.nextElement();
value = request.getParameter(name);
System.out.println(name + "="+value);
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
}
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