spring Boot登录验证之验证码邮箱

一验证码

登录login.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>xxx需求管理系统</title>
</head>
<script src="${pageContext.request.contextPath}/js/jquery-1.9.1.min.js"></script>
<script type="text/javascript">
   $(function () {
       $("#login").click(function () {
           var url="${pageContext.request.contextPath}/login"
           var json={"username":$("#username").val(),"password":$("#password").val(),"checkcode":$("#checkcode").val()};
           if($("#username").val()==""){
               alert("用户名不能为空")
           }else if($("#password").val()==""){
               alert("密码不能为空")
           }else {
           function callback(msg) {
               if(msg==0){
                   alert("用户名或密码错误")
               }else if(msg==1){

                   alert("验证码错误！")
               }else if(msg==2){
                   window.location.href="${pageContext.request.contextPath}/toSxf";
               }
           }
           }
           $.get(url,json,callback);
       })
   })
</script>
<body>
<div align="center" style="margin-top: 150px">
<h2 style="color: blue">xxx需求管理系统登录界面</h2>
    用户名：<input type="text" name="username" id="username"></br></br>
    密&nbsp &nbsp码：<input type="password" name="password" id="password"></br></br>
    <table align="center">
        <tr>
    <td>验证码：</td>
    <td class="width50"><input id="checkcode" name="checkcode" type="text" class="width50" /></td>
    <td><img src="createImage" alt="验证码" title="点击更换" onclick="this.src='createImage?'+(new Date()).getTime();"/></td>
    <td><span id="checkcode_msg" class="required"></span></td>
        </tr>
    </table>
    <input type="submit" value="登录" id="login">
    <a href="${pageContext.request.contextPath}/toForgetPwd">忘记密码？</a>
     <a href="${pageContext.request.contextPath}/toUpdatePwd">修改密码？</a>
</div>
</body>
</html>

后台处理 loginController

@RequestMapping("/login")
    public void login(String username, String password,String checkcode, HttpServletResponse response,HttpSession session) throws IOException {
        String code =(String) session.getAttribute("number");
        if (service.login(username,password)==null) {
            response.getWriter().println(0);
        } else if(checkcode==null||checkcode.length()==0||!code.equalsIgnoreCase(checkcode)){
            response.getWriter().println(1);
        }else{
            response.getWriter().println(2);
        }
    }
@GetMapping("/createImage")
    public void createImage(HttpServletResponse response, HttpSession session) throws IOException {
        BufferedImage image = new BufferedImage(80, 30, BufferedImage.TYPE_INT_RGB);
        Graphics g = image.getGraphics();
        Random r = new Random();
        g.setColor(new Color(r.nextInt(255), r.nextInt(255), r.nextInt(255)));
        g.fillRect(0, 0, 80, 20);
        //获取生成的验证码
        String code = getNumber();
        //绑定验证码
        session.setAttribute("number", code);
        g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 25));
        g.setColor(new Color(r.nextInt(255), r.nextInt(255), r.nextInt(255)));
        g.drawString(code, 5, 25);
        //设置消息头
        response.setContentType("image/jpeg");
        OutputStream os = response.getOutputStream();
        ImageIO.write(image, "jpeg", os);
    }
    public String getNumber(){
        String str = "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ";
        String code = "";
        for(int i= 0;i<4;i++){
            int index = (int)(Math.random()*str.length());
            code+=str.charAt(index);
        }
        return code;
    }

二邮箱（主要功能：输入用户名，将重置密码发往注册时与用户名绑定的邮箱）

在你的 application.yml中加入

spring:
  mail:
       host:      （发送者邮箱类型）

       form:      （发送者邮箱用户名）

       port: 25

       username:  （发送者邮箱用户名）

       password:  （发送者邮箱密码）

@Autowired
    private JavaMailSender javaMailSender;

    @Value("${spring.mail.username}")
    private String username;

@RequestMapping("/forgetPwd")
    public ModelAndView getPwd(HttpServletResponse response,String loginName) throws IOException {
        ModelAndView mv=new ModelAndView();
        SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
        simpleMailMessage.setFrom(username);
        simpleMailMessage.setTo( service.getMail(loginName));//目的邮箱
        simpleMailMessage.setSubject("重置密码");  //邮箱主题
        simpleMailMessage.setText("重置的密码为123456789");//邮箱内容 自定义
        javaMailSender.send(simpleMailMessage);
         mv.setViewName("login/success");
         return mv;
    }

spring Boot登录验证之验证码 邮箱

spring Boot登录验证之验证码邮箱