Jetty Servlet转发JSP：转发错误
[英]Jetty Servlet forward jsp: forward error
问题描述
The problem in the forward jsp Gives an error message: 
正向jsp中的问题给出了错误消息：
2016-01-27 13:22:13.192:WARN:oejs.ServletHandler:qtp1132700707-25: Error for /
java.lang.StackOverflowError
at java.lang.String.startsWith(String.java:1434)
at org.eclipse.jetty.server.Dispatcher$ForwardAttributes.setAttribute(Dispatcher.java:352)
at org.eclipse.jetty.server.Dispatcher$ForwardAttributes.setAttribute(Dispatcher.java:368)
at org.eclipse.jetty.server.Dispatcher$ForwardAttributes.setAttribute(Dispatcher.java:368)
at org.eclipse.jetty.server.Request.setAttribute(Request.java:1925)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:839)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:583)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:224)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1158)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1090)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:199)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:74)
at pages.index.doGet(index.java:18)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
DoGet: 获取：
@WebServlet(urlPatterns = "/")
public class index extends HttpServlet{
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
request.getRequestDispatcher("/index.jsp").forward(request,response);
}
}
Start Server: 启动服务器：
WebAppContext webapp1 = new WebAppContext();
webapp1.setResourceBase("src/Pages");
webapp1.setContextPath("/");
webapp1.setDefaultsDescriptor("src/WEB-INF/web.xml");
webapp1.setDescriptor("src/WEB-INF/web.xml");
server.setHandler(webapp1);
getServletContext() does not help getServletContext（）没有帮助
Please help me understand what the problem is. 请帮助我了解问题所在。
Added index.jsp, generate NetBeans 8.1, i not change.: 添加了index.jsp，生成NetBeans 8.1，我没有改变。
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<f:view>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>JSP Page</title>
</head>
<body>
<h1><h:outputText value="Hello World!"/></h1>
</body>
</html>
</f:view>
2 个解决方案
解决方案1
0 2016-01-27 10:36:44
The problem that your index.jsp is calling servlet, and servlet is calling index.jsp so they have infinite loop. 您的index.jsp正在调用servlet，而servlet正在调用index.jsp使它们具有无限循环。 Change the page servlet should forward 更改页面servlet应该转发
getServletContext().getRequestDispatcher("/page.jsp").forward(request,response);
解决方案2
0 2016-08-20 19:11:09
I did do the 我确实做了
getServletContext().getRequestDispatcher("/page.jsp").forward(request,response);
as suggested by Roman C. However that didn't solve it alone. 正如罗曼·C（Roman C）所建议的。但是，这并不能单独解决。 I also removed all servlet mappings. 我还删除了所有servlet映射。
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