项目知识点总结-过滤器-MD5注册-邮箱登录

（1）过滤器

使用过滤器验证用户是否登录

/**  
* @Title: NoLoginFilter.java  
* @Package com.qfedu.web.filter  
* @Description: TODO(用一句话描述该文件做什么)  
* @author Feri 
* @date 2018年5月28日  
* @version V1.0  
*/  
package com.gdsdxy.filter;import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;/**  
* @Title: NoLoginFilter.java  
* @Package com.qfedu.web.filter  
* @Description: TODO(用一句话描述该文件做什么)  
* @author Feri  
* @date 2018年5月28日  
* @version V1.0  
*/
@WebFilter("/*")
public class NoLoginFilter implements Filter {private String[] urls= {"getCart","addCart","order.jsp","orderDetail.jsp","getDirectOrder","addOrder","addfavorites","getGoodsById"};/* */@Overridepublic void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain)throws IOException, ServletException {HttpServletRequest request=(HttpServletRequest) req;HttpServletResponse response=(HttpServletResponse) resp;String path=request.getServletPath();if(isHave(path)) {//需要进行登录拦截校验if(request.getSession().getAttribute("user")==null) {response.sendRedirect("login.jsp");}else {chain.doFilter(request, response);}}else {chain.doFilter(request, response);}}private boolean isHave(String path) {for(String u:urls) {if(path.contains(u)) {return true;}}return false;}@Overridepublic void destroy() {// TODO Auto-generated method stub}@Overridepublic void init(FilterConfig filterConfig) throws ServletException {// TODO Auto-generated method stub}}

过滤器的配置：一是通过注解，二是通过web.xml中配置

如@WebFilter("/*")就是拦截所有请求。

xml方式可以说是和Servlet使用xml配置方式一样

    <filter><filter-name>myFilter</filter-name><filter-class>com.clucky.filter.MyFilter</filter-class></filter><filter-mapping><filter-name>myFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping>

Filter有3个阶段，分别是初始化，拦截和过滤，销毁。

初始化阶段：当服务器启动时，我们的服务器(Tomcat)就会读取配置文件，扫描注解，然后来创建我们的Filter。
拦截和过滤阶段：只要请求资源的路径和拦截的路径相同，那么过滤器就会对请求进行过滤，这个阶段在服务器运行过程中会一直循环。
销毁阶段：当服务器(Tomcat)关闭时，服务器创建的Filter也会随之销毁

FilterConfig和FilterChain这2个对象是由服务器(Tomcat)在创建和调用Filter对象时所传入的

FilterConfig对象可以读取我们配置的初始参数，FilterChain可以实现多个Filter之间的连接。

FilterConfig

import javax.servlet.*;
import java.io.IOException;
import java.util.Enumeration;public class MyFilterConfig implements Filter {@Overridepublic void init(FilterConfig filterConfig) throws ServletException {System.out.println("-----------获取全部key:value------------");//得到所有配置参数的名字Enumeration<String> names = filterConfig.getInitParameterNames();while (names.hasMoreElements()) {//得到每一个名字String name = names.nextElement();System.out.println(name+" = "+filterConfig.getInitParameter(name));}System.out.println("-----------end.....------------");}@Overridepublic void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {}@Overridepublic void destroy() {}
}

xml：

<filter><filter-name>myFilterConfig</filter-name><filter-class>com.clucky.filter.MyFilterConfig</filter-class><init-param><param-name>driver</param-name><param-value>com.mysql.jdbc.Driver</param-value></init-param><init-param><param-name>url</param-name><param-value>jdbc:mysql://localhost:3306/equip_employ_manage?serverTimezone=GMT</param-value></init-param><init-param><param-name>username</param-name><param-value>root</param-value></init-param><init-param><param-name>password</param-name><param-value>root</param-value></init-param></filter><filter-mapping><filter-name>myFilterConfig</filter-name><url-pattern>/*</url-pattern></filter-mapping>

FilterChain

第一个filter

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;@WebFilter("/*")
public class Filter01 implements Filter {@Overridepublic void init(FilterConfig filterConfig) throws ServletException {}@Overridepublic void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {System.out.println("调用过滤器01对请求进行过滤~~~~");//放行,如果还有过滤器，那么就执行下一个过滤器filterChain.doFilter(servletRequest,servletResponse);System.out.println("调用过滤器01对响应进行过滤~~~~");}@Overridepublic void destroy() {}
}

第二个Filter

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;@WebFilter("/*")
public class Filter02 implements Filter {@Overridepublic void init(FilterConfig filterConfig) throws ServletException {}@Overridepublic void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {System.out.println("调用过滤器02对请求进行过滤~~~~");//放行,如果还有过滤器，那么就执行下一个过滤器filterChain.doFilter(servletRequest,servletResponse);System.out.println("调用过滤器02对响应进行过滤~~~~");}@Overridepublic void destroy() {}
}

我们可以看见Filter01先进行过滤，然后交给Filter02，然后访问资源，然后Filter02对响应进行过滤，然后Filter01对响应进行过滤

多个Filter的执行顺序
上面我们配置了2个过滤器，那么我们怎么知道那个过滤器先执行呢？其实大家可以直接使用代码进行验证，培养独立思考的习惯，这里我就直接给出答案了。

如果我们是在web.xml中配置的过滤器，那么过滤器的执行顺序就是<filter-mapping>在web配置的顺序，配置在上面那么就会先执行。
如果我们是使用@WebFilter进行配置的，那么执行顺序就是字符比较顺序来执行，例如有2个过滤器，一个是AFilter，一个是BFilter，那么AFilter就会先执行。
如果注解和xml混用，那么在web.xml中配置的会先执行。

（2）用户注册-密码使用MD5加密

工具类：生成自定义数字

package com.gdsdxy.common.utils;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Random;
import java.util.UUID;
//随机数
public class RandomUtils {//生成激活码public static String createActive(){return getTime()+Integer.toHexString(new Random().nextInt(900)+100);}//设置时间戳public static String getTime(){return new SimpleDateFormat("yyyyMMddHHmmssSSS").format(Calendar.getInstance().getTime());}//生成订单编号public static String createOrderId(){return getTime()+UUID.randomUUID().toString();}
}

工具类：密码加密

package com.gdsdxy.common.utils;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
//MD5 摘要算法 签名或者简易加解密
public class MD5Utils {public static String md5(String password){try {//获取摘要对象MessageDigest md = MessageDigest.getInstance("MD5");//设置要签名的内容md.update(password.getBytes());//获取摘要结果return new BigInteger(1, md.digest()).toString(16);} catch (NoSuchAlgorithmException e) {// TODO Auto-generated catch blocke.printStackTrace();}return null;}
}

工具类：邮箱编码、解码

package com.gdsdxy.common.utils;
import java.util.Base64;
/*** 基于JDK1.8实现的BASE64编码* 编码* 解码*/
public class Base64Utils {//编码public static String encode(String msg){return Base64.getEncoder().encodeToString(msg.getBytes());}//解码public static String decode(String msg){return new String(Base64.getDecoder().decode(msg));}
}

Controller: :

创建激活码，创建它给对象的属性赋值，下面利用它作为条件查询，激活对象

上传的图片：用MultipartFile file接收，然后创建file desfile对象：再通过接口的file对象file.transferTo（创建的desfile对象）进行图片的存储

 // 注册@RequestMapping("userregister")public String register(User user, Model model, HttpSession session, HttpServletRequest request, MultipartFile file) throws IOException {// 创建激活码String acode = RandomUtils.createActive();user.setActivatecode(acode);String fn = FileUtils.createFileName(file.getOriginalFilename());File desfile = new File("C:\\hitech\\src\\main\\webapp\\image", fn);file.transferTo(desfile);user.setPicture(fn);if (userService.save(user)) {// 新增成功session.setAttribute("acode", acode);// 发送激活码EmailUtils.sendEmail(user);request.setAttribute("email",user.getEmail());request.setAttribute("zt", "会员注册");request.setAttribute("ts", "注册成功 别忘记激活!");return "registerSuccess";} else {model.addAttribute("registerMsg", "服务器开小差，请稍后再来");return "register";}}

UserService：

实现类：

Dao：

//新增@Insert("insert into t_user(role ,username,password,email,gender,createtime ,flag ,activatecode,picture) values(1,#{username},#{password},#{email},#{gender},now(),1,#{activatecode},#{picture})")int insert(User user);

EmailUtils.sendEmail(user);

EmailUtils ：发送邮件，进行激活用户

package com.gdsdxy.common.utils;
import com.gdsdxy.domain.User;import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.UnsupportedEncodingException;
import java.net.Inet4Address;
import java.net.UnknownHostException;
import java.util.Date;
import java.util.Properties;
/** 基于JDK实现邮件发送* 主要是实现激活码的发送* */
public class EmailUtils {public static void sendEmail(User user){//邮箱String myAccount = "lx_teach@163.com";//授权码String myPass = "java168";//邮箱服务器String SMTPHost = "smtp.163.com";//设置属性信息Properties prop = new Properties();//设置协议prop.setProperty("mail.transport.protocol", "smtp");//邮件服务器prop.setProperty("mail.smtp.host", SMTPHost);//认证prop.setProperty("mail.smtp.auth", "true");//1、创建会话Session session = Session.getDefaultInstance(prop);//设置是否需要调试session.setDebug(false);//2、创建发送信息MimeMessage message = createMsg(session,myAccount,user);//4发送信息操作try {Transport tran = session.getTransport();//连接tran.connect(myAccount, myPass);//发送消息 tran.sendMessage(message, message.getAllRecipients());//关闭tran.close();} catch (MessagingException e) {// TODO Auto-generated catch blocke.printStackTrace();}}//生成邮件消息private static MimeMessage createMsg(Session session, String myAccount, User user) {//创建消息对象MimeMessage message = new MimeMessage(session);//设置try {//3.1发送方message.setFrom(new InternetAddress(myAccount, "HITECH官方邮件", "utf-8"));//3.2设置接收方/** MimeMessage.RecipientType.TO * MimeMessage.RecipientType.CC * MimeMessage.RecipientType.BCC * */message.setRecipient(MimeMessage.RecipientType.TO, new InternetAddress(user.getEmail(), user.getUsername(), "utf-8"));//3.3 设置主题message.setSubject("HITECH激活码","utf-8");//获取本机的ip地址String ip = Inet4Address.getLocalHost().getHostAddress();String url = "http://localhost:8080/hitech_war/activate?e="+ Base64Utils.encode(user.getEmail())+"&c="+Base64Utils.encode(user.getActivatecode());//String url = "http://"+ip+":8080/fengmi_war/activate?e="+ Base64Utils.encode(user.getEmail())+"&c="+Base64Utils.encode(user.getActivatecode());//设置正文信息message.setContent(user.getUsername()+",欢迎你加入我们<br>为了更好体验我们的产品，请点击激活<a href='"+url+"'>"+url+"</a>","text/html;charset=utf-8");//设置日期message.setSentDate(new Date());//保存message.saveChanges();} catch (UnsupportedEncodingException | MessagingException | UnknownHostException e) {// TODO Auto-generated catch blocke.printStackTrace();}return message;}
}

UserService

实现类：

Dao：

//激活@Update("update t_user set flag=2 where email=#{email} and activatecode=#{code}")int updateAcode(@Param("email") String email, @Param("code") String code);

（3）用户登录-普通登录-邮箱登录

普通登录：

Controller：

// 登陆@RequestMapping("userlogin")public String login(String username, String password, Model model, HttpSession session) {if (!StrUtils.empty(username, password)) {User user = userService.getUserByName(username);if (user != null) {// 校验密码if (user.getPassword().equals(MD5Utils.md5(password))) {// 正确// 记录登录信息到会话中session.setAttribute("user", user);Cart cart = cartService.queryByUid(user.getId());if (cart == null) {cart = new Cart();cart.setUid(user.getId());cart.setMoney(0);cartService.createCart(cart);}session.setAttribute("cart", cartService.queryByUid(user.getId()));// 页面跳转return "index";}}}model.addAttribute("loginMsg", "&nbsp;账号或密码错误！");return "login";}

UserService：

实现类：

UserDao：

//登录 用户名或密码都可以使用@Select("select * from t_user where flag=2 and (username=#{name} or email=#{email})")@ResultType(User.class)User select(String name);

user.getPassword().equals(MD5Utils.md5(password)) ：通过从数据库加密的密码进行解码，对比

登录成功后更具用户id进行查询是否含有购物车，创建一个购物车：

Cart cart = cartService.queryByUid(user.getId());

CartService：

实现类：

CartDao：

//获取用户的购物车@Select("select * from t_cart where uid=#{uid}")@ResultType(Cart.class)public Cart queryByUid(int uid);

cartService.createCart(cart);

CaartService：

实现类：

CartDao：

registerSuccess页面

<%@ page language="java" contentType="text/html; charset=utf-8"pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html style="height: 100%">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1"><link href="css/bootstrap.min.css" rel="stylesheet"><script type="text/javascript" src="js/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="css/login.css">
<title>HITECH</title><style>@import "https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css";#fhzy:hover #tb{color: white;}#fhzy:hover{background: #ff4545 !important;}</style>
</head>
<body style="height: 100%;background: url('image/商品列表背景.png');z-index: 3">
<div style="height: 100%;width: 100%;background: rgba(0,0,0,0.29);z-index: 2;display: flex;align-items: center;justify-content: center;"><div style="width: 700px;height: 140px;padding:25px;border-radius:3px;background-image: -webkit-linear-gradient(45deg, #ffffff 0%, #f3f3f3 100%);position: relative"><img src="image/图标.png" style="width: 80px;height: auto;margin-bottom: 35px"><span style="float: right;font-family: '华文新魏';font-size: 16px">${zt}</span></br><div style="float: left;color: grey;font-weight:bold;background:url('image/提示背景.jpg');border-top-left-radius: 5px;border-bottom-left-radius: 5px;padding: 10px;width: 500px;text-align: center">${ts}</div><a id="clj" style="background: #ff4545;color: white;border-radius:unset;height: 40px;width:150px;line-height: 27px;" class="btn" href="http://www.hao123.com/mail" target="_blank">马上前往</a><a id="fhzy" href="${pageContext.request.contextPath }/index.jsp"style="position: absolute;top: -25px;right: -25px;border-radius: 50%;background: white;padding: 7px"><iid="tb" style="height: 25px;width: 25px;text-align: center;font-size: 25px" class="fa fa-reply"aria-hidden="true"></i></a></div>
</div><script>var email="${email}";var a = email.indexOf("@");var email = email.substring(a+1,email.length);console.log(email);$("#clj").attr("href","http://mail."+email);
</script>
</body>
</html>

点击连接进行验证登录

邮箱登录：

UserService：

实现类：更具email获取用户信息，进行发送邮件，进行验证用户登录

User Dao：

//根据email获取user实例@Select("select * from t_user where email=#{email} and flag=2")@ResultType(User.class)User selectEmail(String email);

EmailUtils2 :工具类发送短信：进行本地验证登录用户信息

package com.gdsdxy.common.utils;
import com.gdsdxy.domain.User;import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.UnsupportedEncodingException;
import java.net.Inet4Address;
import java.net.UnknownHostException;
import java.util.Date;
import java.util.Properties;
/** 基于JDK实现邮件发送* 主要是实现激活码的发送* */
public class EmailUtils2 {public static void sendEmail(User user){//邮箱String myAccount = "lx_teach@163.com";//授权码String myPass = "java168";//邮箱服务器String SMTPHost = "smtp.163.com";//设置属性信息Properties prop = new Properties();//设置协议prop.setProperty("mail.transport.protocol", "smtp");//邮件服务器prop.setProperty("mail.smtp.host", SMTPHost);//认证prop.setProperty("mail.smtp.auth", "true");//1、创建会话Session session = Session.getDefaultInstance(prop);//设置是否需要调试session.setDebug(false);//2、创建发送信息MimeMessage message = createMsg(session,myAccount,user);//4发送信息操作try {Transport tran = session.getTransport();//连接tran.connect(myAccount, myPass);//发送消息tran.sendMessage(message, message.getAllRecipients());//关闭tran.close();} catch (MessagingException e) {// TODO Auto-generated catch blocke.printStackTrace();}}//生成邮件消息private static MimeMessage createMsg(Session session, String myAccount, User user) {//创建消息对象MimeMessage message = new MimeMessage(session);//设置try {//3.1发送方message.setFrom(new InternetAddress(myAccount, "HITECH官方邮件", "utf-8"));//3.2设置接收方/** MimeMessage.RecipientType.TO* MimeMessage.RecipientType.CC* MimeMessage.RecipientType.BCC* */message.setRecipient(MimeMessage.RecipientType.TO, new InternetAddress(user.getEmail(), user.getUsername(), "utf-8"));//3.3 设置主题message.setSubject("HITECH邮箱登录","utf-8");//获取本机的ip地址String ip = Inet4Address.getLocalHost().getHostAddress();String url = "http://localhost:8080/hitech_war/emailLogin?username="+ user.getUsername()+"&password="+user.getPassword();//String url = "http://"+ip+":8080/fengmi_war/activate?e="+ Base64Utils.encode(user.getEmail())+"&c="+Base64Utils.encode(user.getActivatecode());//设置正文信息message.setContent(user.getUsername()+",欢迎你,<br>点击登录(不行就复制粘贴地址到浏览器上)<a href='"+url+"'>"+url+"</a>","text/html;charset=utf-8");//设置日期message.setSentDate(new Date());//保存message.saveChanges();} catch (UnsupportedEncodingException | MessagingException | UnknownHostException e) {// TODO Auto-generated catch blocke.printStackTrace();}return message;}
}

Controller：验证用户登录

UserService：

实现类：

UserDao：

//登录 用户名或密码都可以使用@Select("select * from t_user where flag=2 and username=#{username} and password=#{password}")@ResultType(User.class)User Emailyanz(@Param("username") String username,@Param("password") String password);

（4）忘记密码-发送邮件修改密码

userService.Xiugaijihuoma(acode, e);

UserService

实现类

UserDao：

//修改激活码@Update("update t_user set activatecode=#{c} where email=#{e}")boolean Xiugaijihuoma(@Param("c") String c ,@Param("e") String e);

userService.selectEmailAndC(acode,e);发送邮件进行修改

UserService：

实现类：

package com.gdsdxy.common.utils;
import com.gdsdxy.domain.User;import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.UnsupportedEncodingException;
import java.net.Inet4Address;
import java.net.UnknownHostException;
import java.util.Date;
import java.util.Properties;
/** 基于JDK实现邮件发送* 主要是实现激活码的发送* */
public class EmailUtils3 {public static void sendEmail(User user){//邮箱String myAccount = "lx_teach@163.com";//授权码String myPass = "java168";//邮箱服务器String SMTPHost = "smtp.163.com";//设置属性信息Properties prop = new Properties();//设置协议prop.setProperty("mail.transport.protocol", "smtp");//邮件服务器prop.setProperty("mail.smtp.host", SMTPHost);//认证prop.setProperty("mail.smtp.auth", "true");//1、创建会话Session session = Session.getDefaultInstance(prop);//设置是否需要调试session.setDebug(false);//2、创建发送信息MimeMessage message = createMsg(session,myAccount,user);//4发送信息操作try {Transport tran = session.getTransport();//连接tran.connect(myAccount, myPass);//发送消息tran.sendMessage(message, message.getAllRecipients());//关闭tran.close();} catch (MessagingException e) {// TODO Auto-generated catch blocke.printStackTrace();}}//生成邮件消息private static MimeMessage createMsg(Session session, String myAccount, User user) {//创建消息对象MimeMessage message = new MimeMessage(session);//设置try {//3.1发送方message.setFrom(new InternetAddress(myAccount, "HITECH官方邮件", "utf-8"));//3.2设置接收方/** MimeMessage.RecipientType.TO* MimeMessage.RecipientType.CC* MimeMessage.RecipientType.BCC* */message.setRecipient(MimeMessage.RecipientType.TO, new InternetAddress(user.getEmail(), user.getUsername(), "utf-8"));//3.3 设置主题message.setSubject("HITECH忘记密码","utf-8");//获取本机的ip地址String ip = Inet4Address.getLocalHost().getHostAddress();String url = "http://localhost:8080/hitech_war/wjmm.jsp?e="+Base64Utils.encode(user.getEmail())+"&c="+Base64Utils.encode(user.getActivatecode());//String url = "http://"+ip+":8080/fengmi_war/activate?e="+ Base64Utils.encode(user.getEmail())+"&c="+Base64Utils.encode(user.getActivatecode());//设置正文信息message.setContent(user.getUsername()+",你好,<br>点击更新密码(不行就复制粘贴地址到浏览器上)<a href='"+url+"'>"+url+"</a>","text/html;charset=utf-8");//设置日期message.setSentDate(new Date());//保存message.saveChanges();} catch (UnsupportedEncodingException | MessagingException | UnknownHostException e) {// TODO Auto-generated catch blocke.printStackTrace();}return message;}
}

registerSuccess：跳转页面

<%@ page language="java" contentType="text/html; charset=utf-8"pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html style="height: 100%">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1"><link href="css/bootstrap.min.css" rel="stylesheet"><script type="text/javascript" src="js/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="css/login.css">
<title>HITECH</title><style>@import "https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css";#fhzy:hover #tb{color: white;}#fhzy:hover{background: #ff4545 !important;}</style>
</head>
<body style="height: 100%;background: url('image/商品列表背景.png');z-index: 3">
<div style="height: 100%;width: 100%;background: rgba(0,0,0,0.29);z-index: 2;display: flex;align-items: center;justify-content: center;"><div style="width: 700px;height: 140px;padding:25px;border-radius:3px;background-image: -webkit-linear-gradient(45deg, #ffffff 0%, #f3f3f3 100%);position: relative"><img src="image/图标.png" style="width: 80px;height: auto;margin-bottom: 35px"><span style="float: right;font-family: '华文新魏';font-size: 16px">${zt}</span></br><div style="float: left;color: grey;font-weight:bold;background:url('image/提示背景.jpg');border-top-left-radius: 5px;border-bottom-left-radius: 5px;padding: 10px;width: 500px;text-align: center">${ts}</div><a id="clj" style="background: #ff4545;color: white;border-radius:unset;height: 40px;width:150px;line-height: 27px;" class="btn" href="http://www.hao123.com/mail" target="_blank">马上前往</a><a id="fhzy" href="${pageContext.request.contextPath }/index.jsp"style="position: absolute;top: -25px;right: -25px;border-radius: 50%;background: white;padding: 7px"><iid="tb" style="height: 25px;width: 25px;text-align: center;font-size: 25px" class="fa fa-reply"aria-hidden="true"></i></a></div>
</div><script>var email="${email}";var a = email.indexOf("@");var email = email.substring(a+1,email.length);console.log(email);$("#clj").attr("href","http://mail."+email);
</script>
</body>
</html>

修改密码页面：${param.e}获取连接后加密的邮箱跟激活码


<%@ page language="java" contentType="text/html; charset=utf-8"pageEncoding="utf-8" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html style="height: 100%">
<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1"><link href="css/bootstrap.min.css" rel="stylesheet"><script type="text/javascript" src="js/jquery.min.js"></script><link rel="stylesheet" type="text/css" href="css/login.css"><title>HITECH</title><style>@import "https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css";#fhzy:hover #tb {color: white;}#fhzy:hover {background: #ff4545 !important;}</style>
</head>
<body style="height: 100%;background: url('image/商品列表背景.png');z-index: 3">
<div style="height: 100%;width: 100%;background: rgba(0,0,0,0.29);z-index: 2;display: flex;align-items: center;justify-content: center;"><div style="width: 303px;height: 205px;padding:25px;border-radius:3px;background-image: -webkit-linear-gradient(45deg, #ffffff 0%, #f3f3f3 100%);position: relative"><img src="image/图标.png" style="width: 80px;height: auto;margin-bottom: 35px"><spanstyle="float: right;font-family: '华文新魏';font-size: 16px">修改密码</span></br><form action="wjmm" method="post" style="font-family: '华文新魏'">请输入新密码：<input id="psd1" type="password" name="password"style="border-radius: 3px;border: 1px solid #3cadeb;margin: 0 0 10px 0;" required="required"pattern="[a-zA-Z0-9_!@#$%^&*]{5,16}"></br>再次输入密码：<input id="psd2" type="password" name="password2"style="border-radius: 3px;border: 1px solid #3cadeb;margin: 0;" required="required"onchange="validate()"></br><input type="hidden" name="e" value="${param.e}"><input type="hidden" name="c" value="${param.c}"><button id="btn1"style="background: #ff4545;color: white;border-radius:unset;width:100%;line-height: 27px;border: unset;margin-top: 25px;"type="submit" value="确认">确认</button></form></div>
</div><script>function validate() {var psd1Val = document.getElementById('psd1').value;var psd2 = document.getElementById('psd2');  //分开写是为了下面的focus()方法；var psd2Val = psd2.value;if (psd2Val != psd1Val) {$("#btn1").attr("disabled", true);psd2.focus();//焦点放在psd2上，无需用户再次点击alert("两次密码必须一样,密码必须大于五位数")} else {$("#btn1").removeAttr("disabled");}}</script></body>
</html>

Controller：

UserService：

实现类：

UserDao：

//根据email和激活码修改密码@Update("update t_user set password=#{password},activatecode=#{cc} where email=#{e} and activatecode=#{c}")boolean wjmm(@Param("cc") String cc,@Param("password") String password,@Param("e") String e,@Param("c") String c);