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<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>KaptchaServlet</servlet-name> <servlet-class>com.google.code.kaptcha.servlet.KaptchaServlet</servlet-class> <!-- 修改随机的字母或数字的长度 --> <init-param> <param-name>kaptcha.textproducer.char.length</param-name> <param-value>4</param-value> </init-param> <!-- 修改字体大小 --> <init-param> <param-name>kaptcha.textproducer.font.size</param-name> <param-value>25</param-value> </init-param> <init-param> <param-name>kaptcha.textproducer.char.space</param-name> <param-value>10</param-value> </init-param> <!-- 修改图片的宽高 --> <init-param> <param-name>kaptcha.image.width</param-name> <param-value>120</param-value> </init-param> <init-param> <param-name>kaptcha.image.height</param-name> <param-value>30</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>KaptchaServlet</servlet-name> <url-pattern>/KaptchaServlet</url-pattern> </servlet-mapping> </web-app>
login.jsp
<%--
Created by IntelliJ IDEA.
User: 12396
Date: 2020/6/10
Time: 23:37
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登录</title>
<link rel="stylesheet" href="css/login.css">
<script type="text/javascript">
function changeImg(){
var codeImg = document.getElementById("codeImg");
codeImg.src="${pageContext.request.contextPath }/KaptchaServlet?time="+new Date().getTime();
}
</script>
</head>
<body>
<div class="login">
<div class="header">
<h1>
<a href="/login.do">登录</a>
</h1>
<button></button>
</div>
<form action="/login.do" method="post">
<div class="name">
<input type="text" id="name" name="username">
<p></p>
</div>
<div class="pwd">
<input type="password" id="pwd" name="password">
<p></p>
</div>
<div class="code">
<input type="text" id="code" name="verifyCode" style="width: 150px">
<img id="codeImg" onclick="changeImg()" src="${pageContext.request.contextPath }/KaptchaServlet" style="width: 150px;height: 42px;vertical-align: middle;">
<p></p>
</div>
<div class="btn-red">
<input type="submit" value="登录" id="login-btn">
</div>
</form>
</div>
</body>
</html>35
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