Question

这是我的默认servlet。代码：

＆＃13;

@WebServlet(value="/")
public class DefaultServlet extends HttpServlet {

	private static final long serialVersionUID = 1L;

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doPost(request, response);
		
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String contextPath = request.getContextPath();
		response.sendRedirect(contextPath+"/login.jsp");
	}

}

＆＃13;

login.jsp位于WebContent。

login.jsp代码：

＆＃13;

<%@ 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>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" charset="utf-8" src="js/check.js"></script>
<title>Login here</title>
</head>
<body>
	<center>
		<br>
		<form action="login" method="post" onsubmit="return checkForm();">
			<table cellspacing=0 cellpadding=2 align=center border=0 id="table" style="margin-left: 550px">
				<tr>
					<td align=right>userName:</td>
					<td><input type="text" name="userName"
						id="userName" /> </td><td><span id="userName_notice"></span></td>
				</tr>
				<tr>
					<td align=right>userPass:</td>
					<td><input type="password" name="userPass"
						id="userPass" /></td><td> <span id="userPass_notice"></span></td>
				</tr>
				<tr>
					<td colspan="2" align=right>
					<input type='submit' value='sign in'>
					</td>
				</tr>
			</table>
		</form>
	</center>
</body>
</html>

＆＃13;

＆＃13; check.js代码：

＆＃13;

var username_empty = "<span style='COLOR:#ff0000'><font size='2px'>  × name in null！</font></span>";
var password_empty = "<span style='COLOR:#ff0000'><font size='2px'> × pass is null！</font></span>";
var info_right = "<span style='COLOR:#006600'><font size='2px'> √ </font></span>";
var pass_error = "<span style='COLOR:#ff0000'><font size='2px'> × </font></span>";

window.onload = function() {
	document.getElementById("userName").focus();
};

/**
 * 
 * 
 * @param {}
 *            target
 * @param {}
 *            Infos
 */
function showInfo(target, Infos) {
	document.getElementById(target).innerHTML = Infos;
}

/**
 * check form
 * 
 * @return {Boolean}
 */

function checkForm() {
	var userName = document.getElementById("userName").value;
	var userPass = document.getElementById('userPass').value;
	if (userName == null || userName == "") {
		showInfo("userName_notice", username_empty);
		document.getElementById("userName").focus();
		return false;
	}else{
		showInfo("userName_notice", info_right);
	}

	if (userPass == null || userPass == "") {
		showInfo("userPass_notice", password_empty);
		document.getElementById("userPass").focus();
		return false;
	}else{
		showInfo("userPass_notice", info_right);
	}
	
	return true;
}

＆＃13;

但是当我访问login.jsp时，找到了check.js 302.JavaScript无效。 我该怎么做才能解决这个问题？任何建议将不胜感激。

Answer 1

找到这样的js文件并确认结构。

网络的内容
--login.jsp
--js / check.js

这意味着您需要创建js文件夹并将您的js文件放在该文件夹中。

为什么我的javascript无法在jsp页面中运行？

1 个答案: