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("f");var m=document.getElementById("m");if (!f.checked&&!m.checked){alert("性别没选择！");return false;}//判断兴趣选项var aihao=document.getElementsByName("aihao");var m=0;for ( var i=0;i<aihao.length;i++){if (aihao[i].checked){m++;}}if (m<2){alert("兴趣必须多于两个！");return false;}//判断说明是否为空var txtValue=document.getElementById("txtTest").value;if (txtValue.length<10){alert("说明长度不能少于十个字母！");return false;}return true;}</script></head><body><form οnsubmit="return validate();" action="validateServlet" ><%//服务器端验证：<form action="validateServlet" > %><table><tr><td >用户登录：</td></tr><tr><td ></td></tr><tr><td>用户名：</td><td><input type="text" name="username" id="username1"></td></tr><tr><td>密 码：</td><td><input type="password" name="password" id="password1"></td></tr><tr><td>重新输入密码：</td><td><input type="password" name="repassword" id="repassword1"></td></tr><tr><td>性 别：</td><td>男：<input type="radio" name="sex" value="female" id="f" ></td><td>女：<input type="radio" name="sex" id="male"></td></tr><tr><td>兴 趣：</td><td>篮球：<input type="checkbox" name="aihao" value="basketball"></td><td>足球：<input type="checkbox"" name="aihao" value="football" ></td><td>听歌：<input type="checkbox"" name="aihao" value="music"></td><td>书法：<input type="checkbox"" name="aihao" value="writing"></td></tr><tr><td>地 址：</td><td><select name="add" size="1"><option value="shanghai" selected>上海<option value="yantai" >烟台<option value="beijing" >北京</select></td></tr><tr><td>说 明：</td><td><textarea name="shuoming" clos="20" rows="5" id="txtTest"></textarea></td></tr><tr><td><input type="submit" value="提交" ></td><td><input type="reset" value="重置"></td></tr></table> </form><a href="http://www.baidu.com">百度</a></body>
</html> 登陆成功页面：<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><html><head><title>成功登陆页面</title></head><body><%= "个人信息："+"<br>" +"<br>"+"<br>"%><%= "姓名: "+request.getAttribute("username")+"<br>" %><%= "密码: "+request.getAttribute("password")+"<br>" %><%= "性别: "+request.getAttribute("sex")+"<br>" %><%= "兴趣: "+request.getAttribute("aihao")+"<br>" %><%= "地址: "+request.getAttribute("add") +"<br>"%><%= "说明 : "+request.getAttribute("shuoming")+"<br>" %></body>
</html>
函数用法)
 - 图像复原与重建5 - 均匀噪声)
 - 图像复原与重建6 - 椒盐噪声)
 - 图像复原与重建7 - 周期噪声 余弦噪声生成方法)
 - 图像复原与重建8 - 估计噪声参数)