<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<link href="<c:url value='/css/style.css'/>" rel="stylesheet" type="text/css"/>
<script type="text/javascript">
//地址获取
function getRootPath(){
var rootPath=window.location.pathname; // /Day517/Ajax.jsp
var index = rootPath.indexOf("/",1);
rootPath = rootPath.substring(0,index);
return rootPath; // /Day517
}
</script>
</head>
<body>
<!-- 必须使用post提交 -->
<span class="red">${msg }</span>
<form action="<c:url value='/login.do'/>" method="post">
<input type="text" name="username"/> <br/>
<input type="text" name="password"/> <br/>
<input type="text" name="verifycode"/> <br/>
<img alt="看不清，换一张" src="<c:url value='/verifycode.do'/>" id="imgcheck" onclick="this.src=getRootPath()+'/verifycode.do?'+Math.random()"/><br/>
<input type="submit" value="ok"/> <br/>
</form>
</body>
</html>
@Controller
public class VerifyCodeController {
@RequestMapping("/verifycode.do")
public void doverifycode(HttpServletRequest request,HttpServletResponse response) throws IOException {
VerifyCode vc =new VerifyCode();
BufferedImage image = vc.getImage();
String text = vc.getText();
request.getSession().setAttribute("session_verifycode", text);
VerifyCode.output(image, response.getOutputStream());
}
}
