Android プラットフォームで Jetty を実行して、静的な html ページとサーブレットを提供しています。JSPページのサポートを追加しようとしましたが、jspを要求すると次の例外が発生しました:
HTTP ERROR 500
Problem accessing /time.jsp. Reason:
Server Error
Caused by:
org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP
PWC6199: Generated servlet error:
The type java.lang.Object cannot be resolved. It is indirectly referenced from required .class files
PWC6199: Generated servlet error:
The type java.lang.Throwable cannot be resolved. It is indirectly referenced from required .class files
PWC6199: Generated servlet error:
The type java.lang.String cannot be resolved. It is indirectly referenced from required .class files
PWC6199: Generated servlet error:
org.apache.jasper.runtime.HttpJspBase cannot be resolved to a type
PWC6199: Generated servlet error:
org.apache.jasper.runtime.JspSourceDependent cannot be resolved to a type
PWC6199: Generated servlet error:
JspFactory cannot be resolved to a type
PWC6199: Generated servlet error:
JspFactory cannot be resolved
PWC6199: Generated servlet error:
java.util.List cannot be resolved to a type
PWC6199: Generated servlet error:
Syntax error, parameterized types are only available if source level is 1.5 or greater
PWC6199: Generated servlet error:
String cannot be resolved to a type
PWC6199: Generated servlet error:
org.glassfish.jsp.api.ResourceInjector cannot be resolved to a type
PWC6199: Generated servlet error:
java.util.List cannot be resolved to a type
PWC6199: Generated servlet error:
Syntax error, parameterized types are only available if source level is 1.5 or greater
PWC6199: Generated servlet error:
String cannot be resolved to a type
PWC6199: Generated servlet error:
_jspx_dependants cannot be resolved to a variable
PWC6199: Generated servlet error:
HttpServletRequest cannot be resolved to a type
PWC6199: Generated servlet error:
HttpServletResponse cannot be resolved to a type
PWC6199: Generated servlet error:
java.io.IOException cannot be resolved to a type
PWC6199: Generated servlet error:
ServletException cannot be resolved to a type
PWC6199: Generated servlet error:
PageContext cannot be resolved to a type
PWC6199: Generated servlet error:
HttpSession cannot be resolved to a type
PWC6199: Generated servlet error:
ServletContext cannot be resolved to a type
PWC6199: Generated servlet error:
ServletConfig cannot be resolved to a type
PWC6199: Generated servlet error:
JspWriter cannot be resolved to a type
PWC6199: Generated servlet error:
Object cannot be resolved to a type
PWC6199: Generated servlet error:
JspWriter cannot be resolved to a type
PWC6199: Generated servlet error:
PageContext cannot be resolved to a type
PWC6199: Generated servlet error:
_jspxFactory cannot be resolved
PWC6199: Generated servlet error:
_jspx_resourceInjector cannot be resolved to a variable
PWC6199: Generated servlet error:
org.glassfish.jsp.api.ResourceInjector cannot be resolved to a type
PWC6197: An error occurred at line: 3 in the jsp file: /time.jsp
PWC6199: Generated servlet error:
java.util.Date cannot be resolved to a type
PWC6199: Generated servlet error:
Throwable cannot be resolved to a type
PWC6199: Generated servlet error:
SkipPageException cannot be resolved to a type
PWC6199: Generated servlet error:
ServletException cannot be resolved to a type
PWC6199: Generated servlet error:
_jspxFactory cannot be resolved
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:129)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:299)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:392)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:453)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:625)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:457)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:370)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:949)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1011)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:856)
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主な活動からの私の構成コードは次のとおりです。
public void startServer()
{
server = new Server(8080);
System.setProperty("org.apache.jasper.compiler.disablejsr199", "true");
// Create a resource handler for static content.
ResourceHandler staticResourceHandler = new ResourceHandler();
staticResourceHandler.setResourceBase(Environment.getExternalStorageDirectory().getAbsolutePath() + "/web/static/");
staticResourceHandler.setDirectoriesListed(false);
// Create context handler for static resource handler.
ContextHandler staticContextHandler = new ContextHandler();
staticContextHandler.setContextPath("/static");
staticContextHandler.setHandler(staticResourceHandler);
// Create WebAppContext for JSP files.
WebAppContext webAppContext = new WebAppContext();
webAppContext.setContextPath("/");
webAppContext.setResourceBase(Environment.getExternalStorageDirectory().getAbsolutePath() + "/web/");
webAppContext.setInitParameter("org.eclipse.jetty.servlet.Default.dirAllowed", "false");
// Create servlet context handler for main servlet.
ServletContextHandler servletContextHandler = new ServletContextHandler(ServletContextHandler.SESSIONS);
servletContextHandler.setContextPath("/servlet");
servletContextHandler.setResourceBase(Environment.getExternalStorageDirectory().getAbsolutePath() + "/web/servlet/");
terminalServlet = new TerminalServlet(this);
networkServlet = new NetworkDrawerServlet(this);
servletContextHandler.setClassLoader(Thread.currentThread().getContextClassLoader());
servletContextHandler.addServlet(new ServletHolder(terminalServlet),"/terminal");
servletContextHandler.addServlet(new ServletHolder(networkServlet),"/topology");
//servletContextHandler.addServlet(new ServletHolder(new DefaultServlet()), "/*");
// Create a handler list to store our static, jsp and servlet context handlers.
HandlerList handlers = new HandlerList();
handlers.setHandlers(new org.eclipse.jetty.server.Handler[] { staticContextHandler, webAppContext, servletContextHandler });
// Add the handlers to the server and start jetty.
server.setHandler(handlers);
try {
server.start();
} catch (Exception e) {
}
}
外部ストレージの「/ web /」ディレクトリの下にWebサーバーファイル（静的コンテンツとjspファイル）を配置します（静的コンテンツに対して機能します。マニフェストファイルに読み取りおよび書き込み権限を設定しました）。
デスクトップでコンパイルして実行した同じコードが正常に動作するため、これは Android での一般的な構成の問題だと思います。