// javaBean代码
package servlet;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class AcceptUserRegist extends HttpServlet {
public String codeToString(String str) // 处理中文字符串的函数
{
String s=str;
try
{
byte tempB[]=s.getBytes("ISO-8859-1");
s=new String(tempB);
return s;
}catch(Exception e)
{
return s;
}
}
public void init(ServletConfig config) throws ServletException
{
super.init(config);
}
public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
// 设置mime
response.setContentType("text/html;charset=GB2312");
PrintWriter out=response.getWriter();
out.println("<html><head><title>接收新用户注册</title></head> <body>");
out.println("这是新用户注册所提交的数据:<br>");
out.println("用户名是:"+codeToString(request.getParameter("username"))+"<br>");
out.println("密码是:"+codeToString(request.getParameter("userpassword"))+"<br>");
out.println("性别是:"+codeToString(request.getParameter("sex"))+"<br>");
out.println("出生年月是:"+request.getParameter("year")+request.getParameter("month")+request.getParameter("day")+"<br>");
out.println("电子邮箱是:"+request.getParameter("E-mail")+"<br>");
out.println("家庭住址是:"+codeToString(request.getParameter("address"))+"<br>");
out.print("</body> </html>");
}
}
<!-- servletform.jsp -->
<%@ page contentType="text/html;charset=gb2312" %>
<script language="javascript">
function on_submit() // 验证数据的合法性
{
if(form1.username.value=="")
{
alert("用户名不能为空，请输入用户名!");
form1.username.focus();
return false;
}
if(form1.userpassword.value=="")
{
alert("用户密码不能为空，请输入密码!");
form1.userpassword.focus();
return false;
}
if(form1.reuserpassword.value=="")
{
alert("用户确认密码不能为空，请输入密码!");
form1.reuserpassword.focus();
return false;
}
if(form1.userpassword.value!=form1.reuserpassword.value)
{
alert("密码与确认密码不同");
form1.userpassword.focus();
return false;
}
if(form1.email.value.length!=0)
{
for(i=0;i<form1.email.value.length;i++)
{
if(form1.email.value.charAt(i)=='@')
{
break;
}
}
if(i==form1.email.value.length)
{
alert("非法E-mail地址!");
form1.email.focus();
return false;
}
}
else
{
alert("请输入E-mail!");
form1.email.focus();
return false;
}
}
</script>
<html>
<head>
<title>新用户注册</title>
</head>
<body>
<form method="POST" action="acceptUserRegist" name="form1" onsubmit="return on_submit()">
新用户注册<br>
用户名(*):<input type="text" name="username" size="20"><br>
密 码(*):<input type="password" name="userpassword" size="20"><br>
再输一次密码(*):<input type="password" name="reuserpassword" size="20"><br>
性别:<input type="radio" value="男" checked name="sex">男<input type="radio" name="sex" value="女">女<br>
出生年月:<input name="year" size="4" maxlength=4>年
<select name="month">
<option value="1" selected>1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
<option value="11">11</option>
<option value="12">12</option>
</select>月
<input name="day" size="3" maxlength=4>日<br>
电子邮箱(*):<input name="E-mail" maxlength=28><br>
家庭住址:<input type="text" name="address" size="20"><br>
<input type="submit" value="提交" name="B1"><input type="reset" value="全部重写" name="B2"><br>
</form>
</body>
</html>
另外，在web.xml文件的<web-app>与</web-app>中加入如下配置：
<servlet>
<servlet-name>acceptUserRegist</servlet-name>
<servlet-class>servlet.AcceptUserRegist</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>acceptUserRegist</servlet-name>
<url-pattern>/acceptUserRegist</url-pattern>
</servlet-mapping>
输入网址：localhost:8080/jspdemo/servletform.jsp
填写信息~ 如下：
提交后，显示页面如下：
JSP简单练习-用Servlet获取表单数据
时间： 2024-12-19 14:48:58