[英]Google App Engine and openid4java - javax.net.ssl.HttpsURLConnection is a restricted class
[英]Struts 2 issue on Google App Engine (Java) - javax.swing.tree.TreeNode is a restricted class
我正在尝试为我的Google App Engine项目使用Struts 2框架。 我已经正确配置了struts框架,并且在struts-config.xml文件中创建了一个动作为:
<package name="myproj" namespace="/myproj" extends="struts-default">
<action name="login">
<result>/login.jsp</result>
</action>
我正在尝试通过以下方式访问上述操作: http:// localhost:8080 / myproj / login.action 。 但是我没有得到我的login.jsp页面。 相反,我收到以下错误。
HTTP ERROR 500
Problem accessing /myproj/login.action. Reason:
java.lang.NoClassDefFoundError: javax.swing.tree.TreeNode is a restricted class. Please see the Google App Engine developer's guide for more details.
Caused by:
javax.servlet.ServletException: java.lang.NoClassDefFoundError: javax.swing.tree.TreeNode is a restricted class. Please see the Google App Engine developer's guide for more details.
at org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
at org.apache.jasper.runtime.PageContextImpl.access$1100(PageContextImpl.java:64)
at org.apache.jasper.runtime.PageContextImpl$12.run(PageContextImpl.java:745)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:743)
at org.apache.jsp.getin_jsp._jspService(getin_jsp.java:102)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
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$2.run(PrivilegedJspServlet.java:59)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.appengine.tools.development.PrivilegedJspServlet.service(PrivilegedJspServlet.java:57)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
我需要配置一些东西来解决上述错误,并使Struts 2框架在Google App Engine上正常工作吗?
我在Appengine组中发现了此问题: http : //groups.google.com/group/google-appengine-java/browse_thread/thread/dd84e44f604498c4
当然,您必须点击它将在GAE上播放的链接
您可以按照我的博客教程http://whyjava.wordpress.com/2009/08/30/creating-struts2-application-on-google-app-engine-gae/进行操作 ,其中包含您需要的所有信息。
在Struts 2.3.24中,使用了最新版本的FreeMarker-2.3.22,并且上述解决方案不再起作用。 而是有专用版本的FreeMarker与AppEngine一起使用,可以将其添加到pom中,如下所示:
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>${struts2.version}</version>
<exclusions>
<exclusion>
<artifactId>freemarker</artifactId>
<groupId>org.freemarker</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker-gae</artifactId>
<version>2.3.22</version>
</dependency>
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