作者pakx ( bouer)
看板java
標題[問題] 使用eclipse開發GAE
時間Thu May 6 20:17:32 2010
參閱官方網址
http://code.google.com/intl/zh-TW/appengine/docs/java/gettingstarted/installing.html
使用eclipse3.5 一步一步按照官方的設定建構環境
走到使用JSP這一部分的時候
我將jsp的檔案 guestbook.jsp建立在war目錄下面
但是卻一直顯示錯誤
一直找不出原因
下面的problem視窗顯示
Your project must be configured to use a JDK in order to use
JSPs guestbook.jsp /Guestbook/war Unknown Google App Engine Problem
用Debug硬跑之後，在瀏覽器顯示的錯誤訊息
HTTP ERROR 500
Problem accessing /. Reason:
Error running javac.exe compiler
Caused by:
Error running javac.exe compiler
at
org.apache.tools.ant.taskdefs.compilers.DefaultCompilerAdapter.executeExternalCompile(DefaultCompilerAdapter.java:473)
at
org.apache.tools.ant.taskdefs.compilers.JavacExternal.execute(JavacExternal.java:47)
at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:931)
at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:757)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
at
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at
com.google.appengine.tools.development.PrivilegedJspServlet.access$101(PrivilegedJspServlet.java:23)
at
com.google.appengine.tools.development.PrivilegedJspServlet$2.run(PrivilegedJspServlet.java:59)
at java.security.AccessController.doPrivileged(Native Method)
at
com.google.appengine.tools.development.PrivilegedJspServlet.service(PrivilegedJspServlet.java:57)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at
com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
at
com.google.appengine.tools.development.StaticFileUtils.serveWelcomeFileAsForward(StaticFileUtils.java:80)
at
com.google.appengine.tools.development.LocalResourceFileServlet.maybeServeWelcomeFile(LocalResourceFileServlet.java:254)
at
com.google.appengine.tools.development.LocalResourceFileServlet.doGet(LocalResourceFileServlet.java:120)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at
com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:51)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at
com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at
com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:349)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: java.io.IOException: Cannot run program "javac.exe": CreateProcess
error=2, ¨t2 ??¨ì
想請問版上各位高手要怎麼解決呢？
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◆ From: 58.114.198.119
1F：推 PsMonkey:要自己 assign JDK 目錄 05/06 21:06
2F：推 PsMonkey:還有，這個問題到 Eclipse 版比較適合 05/06 21:07
3F：→ pakx:解決了，謝謝版主大人，不過看到版主大人的ID，讓我想到以前 05/06 21:48
4F：→ pakx:大一時迎新表演的學長，呂老師的愛徒，也跟版主同一個ID耶 05/06 21:50
5F：推 PsMonkey:往事就不要拿出來提了... 我專題也不是修呂老大的 Orz 05/06 23:19