1

I'm trying to setup the Geek Serendipity backend sample as demoed at Google IO (http://bradabrams.com/2013/05/google-io-2013-session-overview-from-nothing-to-nirvana-in-minutes-cloud-backend-for-your-android-application-building-geek-serendipity/)

I'm following the instructions at https://github.com/GoogleCloudPlatform/solutions-mobile-backend-starter-java (I'm deploying from source code as I will need to later add some custom endpoints)

However, after following the instructions and deploying to AppEngine, I can't access the homepage of the deployed app (configure.jsp) to UNLOCK the app for development calls. I'm getting the a NullPointer on XSRFTokenUtility.java.

Uncaught exception from servlet
java.lang.NullPointerException
        at com.google.cloud.backend.config.XSRFTokenUtility.buildTokenString(XSRFTokenUtility.java:136)
        at com.google.cloud.backend.config.XSRFTokenUtility.getToken(XSRFTokenUtility.java:64)
        at com.google.cloud.backend.config.ConfigurationServlet.getToken(ConfigurationServlet.java:208)
        at org.apache.jsp.admin.configure_jsp._jspService(configure_jsp.java:56)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
        at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
        at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
        at

Other details:

App ID: mobile-starter-yaraju-1

Eclipse version: 4.2 (Juno)

AppEngine SDK version: 1.8.5

Google Plugin for Eclipse: 3.4.1.v201309130745-rel-r42

OS: Windows 8 64-bit

4

2 回答 2

2

终于解决了这个问题。源代码很好，我从 zip 中提取了格式错误的 web.xml。

如果您遇到这种情况，请清除您的 Windows 临时缓存，然后再次提取后端 zip。

于 2013-10-09T11:52:01.633 回答
0

我的解决方案：不要从源代码部署。

关注此页面：http: //developers.google.com/cloud/samples/mbs/deploy_backend

部署“移动示例应用程序”的选项终于回来了。直接部署到云端，后端运行良好的示例 Android 客户端应用程序

于 2013-10-03T13:49:03.550 回答