[英]tomcat 8 jsp javax.servlet.ServletException
我不明白此錯誤500和cookie問題,希望有人可以照亮我。
當我運行我的requestDispatcher時,我得到了我無法弄清的內部錯誤500。 資源為/WEB-INF/jsp/index.jsp,但在錯誤消息中顯示為/ WEB-INF / jsp / cookie?
錯誤訊息
HTTP狀態500-javax.servlet.ServletException:javax.servlet.jsp.JspException:java.io.FileNotFoundException:請求的資源(/MyNewRandomBlog1.0/WEB-INF/jsp/{cookie=JSESSIONID=4724BBA140EA29EFF07AD782C755ED13,緩存控制=無緩存,連接=保持活動狀態,主機=本地主機:8080,accept-language = da,en-US; q = 0.7,en; q = 0.3,accept = image / jpeg,application / x-ms-application, image / gif,application / xaml + xml,image / pjpeg,application / x-ms-xbap,application / vnd.ms-excel,application / vnd.ms-powerpoint,application / msword, / ,user-agent = Mozilla / 5.0(兼容; MSIE 9.0; Windows NT 6.2; Win64; x64; Trident / 7.0; ASU2JS),accept-encoding = gzip,deflate,ua-cpu = AMD64})不可用
我的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>MyNewRandomBlog1.0</display-name>
<welcome-file-list>
<welcome-file>frontpage</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>intname</servlet-name>
<servlet-class>dk.danicait.servlets.FrontpageCreation</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>intname</servlet-name>
<url-pattern>/frontpage</url-pattern>
</servlet-mapping>
</web-app>
我的檔案樹
我也沒有在程序中使用任何cookie,因此消息中顯示的cookie是標准cookie?
只是為了確保requestDispatcher的文件確實存在,我確實
String test = sc.getResource("/WEB-INF/jsp/index.jsp").toString();
獲得資源URL可以正常工作。
編輯。 添加了servlet代碼
public class FrontpageCreation extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
ServletContext sc = getServletContext();
// Set request attributes
request.setAttribute("header", sc.getResource("/includes/nav.jsp").toString());
request.setAttribute("footer", sc.getResource("/includes/footer.jsp").toString());
// Request dispatcher
getServletContext().getRequestDispatcher("/WEB-INF/jsp/index.jsp").forward(request, response);
}
}
問題是
request.setAttribute("header", sc.getResource("/includes/nav.jsp").toString());
request.setAttribute("footer", sc.getResource("/includes/footer.jsp").toString());
我在哪里嘗試將這些值傳遞給
<c:import url="${header}"/>
<c:import url="${footer}"/>
在index.jsp頁面中,我相信import語句不理解所傳遞值的格式。 並且他們由此給出錯誤500消息。
使用它們之前,請確保在JSP中導入了JSTL庫。
即將其添加到index.jsp
的頂部
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
在呼叫這條線之前:
<c:import url="${header}"/>
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.