📄 formservlet.java
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import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class FormServlet extends HttpServlet{
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException
{
res.setContentType("text/html;charset=gb2312");
PrintWriter out = res.getWriter();
out.println("<HTML>");
out.println("<BODY bgcolor=#FFFFFF>");
out.println("<center><h1>表单信息</h1>");
out.println("<form method=post action=FormServlet>");
out.println("<table border=0 bgcolor=#eeeeee cellspacing=10>");
out.println("<tr>");
out.println("<td>您的姓名:</td>");
out.println("<td>");
out.println("<input type=TEXT name=username>");
out.println("</td>");
out.println("</tr>");
out.println("<tr>");
out.println("<td>您的年龄:</td>");
out.println("<td>");
out.println("<input type=TEXT name=age>");
out.println("</td>");
out.println("</tr>");
out.println("</table>");
out.println("<p>");
out.println("<center>");
out.println("<input type=SUBMIT name=submit value=Submit>");
out.println("</form>");
out.println("</center>");
out.println("</BODY>");
out.println("</HTML>");
}
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException
{
// Set the content type of the response.
res.setContentType("text/html;charset=gb2312");
PrintWriter out= res.getWriter();
out.println("<HTML><HEAD><TITLE>Form Completed</TITLE></HEAD>");
out.println("<BODY><center>您提交的信息如下:");
out.println("<P>");
String name = (String)req.getParameter("username");
String age=(String)req.getParameter("age");
//把从HTML获取到的参数转换成可显示的中文
String nameGB=new String(name.getBytes("ISO-8859-1"),"GB2312");
// Print out the current name's value:
out.println("<b>姓名:" + nameGB + "</b> ");
out.println("<b>年龄:" + age + "</b> ");
out.println("</center></BODY></HTML>");
}
}
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