HttpServletRequestgetParameter(“username”)取username值知道页面表单项name表单信息用getParameterNames
package lintex;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class sss extends HttpServlet
{
public void doGet(HttpServletrequest request, HttpServletResponse response) throws ServletException, IOException
{
response.setContentType(“text/html;charset=gbk”);
PrintWriter out = response.getWriter();
out.println(“<form action=\”/getParameterNames/x\” method=post>用户名：<INPUT TYPE=text NAME=username>password：<INPUT TYPE=text NAME=password>Email：<INPUT TYPE=text NAME=email><INPUT TYPE=submit></form>”);
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
PrintWriter out = response.getWriter();
String name;
Enumeration test=request.getParameterNames();
while(test.hasMoreElements())
{
name=(String)test.nextElement();
out.println(name+”=”+request.getParameter(name));
out.println(“<br>”);
}
out.println();
}
}
使用Enumeration需要导入util包
