显示表单提交全部内容

显示表单提交全部内容

import java.io.* ;
import javax.servlet.* ;
import javax.servlet.http.* ;
import java.util.* ;

public class ShowAllFormData
    extends HttpServlet
{
    public void doGet(HttpServletRequest request,
                      HttpServletResponse response) throws ServletException, IOException
    {
        response.setContentType("text/html") ;
        PrintWriter out = response.getWriter() ;
        String title = "显示所有的Form变量的值" ;
        out.println("<HTML><HEAD><TITLE>" + title + "</TITLE></HEAD>" +
                    "<BODY BGCOLOR=#FDF5E6>" +
                    "<H1 ALIGN=CENTER>" + title + "</H1>" +
                    "<TABLE BORDER=1 ALIGN=CENTER>" +
                    "<TR BGCOLOR=#FFAD00>" +
                    "<TH>变量名称<TH>变量值") ;
        Enumeration paramNames = request.getParameterNames() ;
        while (paramNames.hasMoreElements())
        {
            String paramName = (String) paramNames.nextElement() ;
            out.println("<TR><TD>" + paramName + "
                        < TD > ");
                        String[] paramValues = request.getParameterValues(paramName) ;
            if (paramValues.length == 1)
            {
                String paramValue = paramValues[0] ;
                if (paramValue.length() == 0)
                    out.print("<I>No Value</I>") ;
                else
                    out.print(paramValue) ;
            }
            else
            {
                out.println("<UL>") ;
                for (int i = 0 ; i < paramValues.length ; i++)
                {
                    out.println("<LI>" + paramValues[i]) ;
                }
                out.println("</UL>") ;
            }

        }
        out.println("</TABLE> < / BODY > < / HTML > ") ;
    }

    public void doPost(HttpServletRequest request,
                       HttpServletResponse response) throws ServletException, IOException
    {
        doGet(request, response) ;
    }
}

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显示表单提交全部内容