日期:2014-05-16 浏览次数:20442 次
第二步:通过servlet处理import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class validateServlet extends HttpServlet { public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { //获得用户的信息 String username=req.getParameter("username"); String password=req.getParameter("password"); String repassword=req.getParameter("repassword"); String shuoming=req.getParameter("shuoming");//说明 String []sex=req.getParameterValues("sex");//获得性别 String []aihao=req.getParameterValues("aihao");//获得兴趣 String []add=req.getParameterValues("add");//获得地址 //String repassword=req.getParameter("repassword"); //String repassword=req.getParameter("repassword"); List<String> list=new ArrayList<String>(); List<String> xingqu=new ArrayList<String>(); if (null=="username"||"".equals(username)) { list.add("there can't be a blank!"); } if (password==null||password.length()<6||password.length()>10) { list.add(" the password's length must Between6 and 10 !"); } if (repassword==null||repassword.length()<6||repassword.length()>10) { list.add(" the password's length must Between 6 and 10!"); } if (password!=null&&repassword!=null&&!password.equals(repassword)) { list.add("the two password isn't the same!"); } if (list.isEmpty()) { req.setAttribute("username",username); req.setAttribute("password",password); req.setAttribute("repassword",repassword); req.setAttribute("shuoming",shuoming);//说明 for(int i=0;i<sex.length;i++)//性别 req.setAttribute("sex",sex[i]); //兴趣 for(int i=0;i<aihao.length;i++) { xingqu.add(aihao[i]); } req.setAttribute("aihao",xingqu+" "); //地址 for(int i=0;i<add.length;i++) req.setAttribute("add",add[i]); //说明 req.getRequestDispatcher("success.jsp").forward(req,resp); } else { req.setAttribute("list",list); req.getRequestDispatcher("unsuccess.jsp").forward(req,resp); } } }
最近在学习jsp先写了个登陆界面的例子第一步:<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <html> <head> <title> 登录界面 </title> <%--客户端验证服务器端验证未启动 --%> <script type="text/javascript"> function validate() { //判断姓名 var username=document.getElementById("username1"); if (username.value.length==0) { alert("用户名不能为空!"); return false; } //判断密码 var password=document.getElementById("password1"); var repassword=document.getElementById("repassword1"); if (password.value.length<6||password.value.length>10) { alert("密码长度不能少于六位超过10位!"); return false; } if (repassword.value.length<6||repassword.value.length>10) { alert("密码长度不能少于六位超过10位!"); return false; } if (password.value != repassword.value) { alert("两次密码不相同!"); return false; } //判断性别 var f=document.getElementById(&qu