點擊注冊后跳轉(zhuǎn)404
<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<h1>用戶注冊</h1>
<hr>
<form name="regForm" action="rqeuest.jsp" method="post">
<table>
?<tr>
<td>用戶名：</td>
<td><input type="text" name="username"/></td>
?</tr>
?<tr>
<td>愛好：</td>
<td>
<input type="checkbox" name="favorite" value="read">讀書
<input type="checkbox" name="favorite" value="music">音樂
<input type="checkbox" name="favorite" value="movie">電影
<input type="checkbox" name="favorite" value="internet">上網(wǎng)
</td>
</tr>
?<tr>
? <td colspan="2"><input type="submit" value="提交"/></td>
?</tr>
</table>
</form>
</body>
</html>
錯誤頁面
Type Status Report
Message /MyJavaWebApp/rqeuest.jsp
Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
request.jsp代碼
<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<h1>request內(nèi)置對象</h1>
用戶名：<%=request.getParameter("username") %><br>
愛好：<%
String[] favorites = request.getParameterValues("favorite");
for(int i=0;i<favorites.length;i++)
{
out.println(favorites[i]+" ");
}
%>
</body>
</html>
運行后頁面500錯誤
Type Exception Report
Message An exception occurred processing JSP page /request.jsp at line 13
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
org.apache.jasper.JasperException:?An?exception?occurred?processing?JSP?page?/request.jsp?at?line?13
10:? 用戶名：<%=request.getParameter("username")?%><br>
11:? 愛好：<%
12:? String[]?favorites?=?request.getParameterValues("favorite");
13:? for(int?i=0;i<favorites.length;i++)
14:? {
15:? out.println(favorites[i]+" ");
16:? }
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:580)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)Root Cause
java.lang.NullPointerException org.apache.jsp.request_jsp._jspService(request_jsp.java:98) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Note The full stack trace of the root cause is available in the server logs.
2018-08-16
出現(xiàn)錯誤就看報錯描述：The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
原始服務(wù)器沒有找到目標資源的當(dāng)前表示形式，或者不愿意公開它的存在。
reg.jsp的內(nèi)容都在form表單中，當(dāng)執(zhí)行reg.jsp時，就會向服務(wù)器請求跳轉(zhuǎn)action所寫的jsp頁面：request.jsp，執(zhí)行request.jsp內(nèi)容
你的錯誤是action跳轉(zhuǎn)的頁面不存在，或者不愿意被訪問
為低級的拼寫錯誤。
2018-08-14
<form name="regForm" action="request.jsp" method="post">
2018-08-09
你的 form表單的action屬性 寫成了 action=“rqeuest.jsp”
2018-08-08
<form name="regForm" action="rqeuest.jsp" method="post">
看是不是文件名打錯了? 404找不到文件