GWT / StockWatcher：无法连接服务器 [英] GWT/StockWatcher: can't connect the server

问题描述

我遵循StockWatcher应用的步骤。在Eclipse中运行应用程序后，我得到一个URL（ http：// 127.0.0.1:8888/StockWatcher.html?gwt.codesvr=127.0.0.1:9997 ）显示了这一点：

I'm following the steps of StockWatcher app. After running the app in Eclipse I get an URL (http://127.0.0.1:8888/StockWatcher.html?gwt.codesvr=127.0.0.1:9997) that shows this:

http://code.google.com/webtoolkit/doc/1.6/tutorial/images/CreateStarterApplication。 png

我在字段中插入我的名字，但是我得到这个错误：

I insert my name in the field but I get this error:

尝试联系服务器时发生错误。请检查
您的网络连接，然后重试。

An error occurred while attempting to contact the server. Please check your network connection and try again.

我在Eclipse中得到这个输出：

I'm getting this output in Eclipse:

Initializing App Engine server
   [WARN] ********************************************************
There is a new version of the SDK available.
-----------
Latest SDK:
Release: 1.6.0
Timestamp: Tue Oct 18 01:46:22 CEST 2011
API versions: [1.0]

-----------
Your SDK:
Release: 1.5.5
Timestamp: Sat Oct 08 03:15:30 CEST 2011
API versions: [1.0]

-----------
Please visit http://code.google.com/appengine for the latest SDK.
********************************************************

Nov 15, 2011 5:24:37 PM com.google.apphosting.utils.jetty.JettyLogger info
INFO: Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger
Nov 15, 2011 5:24:37 PM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
INFO: Successfully processed /home/javier/programacion/StockWatcher/war/WEB-INF/appengine-web.xml
Nov 15, 2011 5:24:37 PM com.google.apphosting.utils.config.AbstractConfigXmlReader readConfigXml
INFO: Successfully processed /home/javier/programacion/StockWatcher/war/WEB-INF/web.xml
Nov 15, 2011 6:24:45 PM com.google.appengine.tools.development.DevAppServerImpl start
INFO: The server is running at http://localhost:8888/
Nov 15, 2011 5:24:52 PM com.google.appengine.tools.development.LocalResourceFileServlet doGet
WARNING: No file found for: /favicon.ico
Nov 15, 2011 5:24:52 PM com.google.appengine.tools.development.LocalResourceFileServlet doGet
WARNING: No file found for: /favicon.ico
Nov 15, 2011 5:24:58 PM com.google.apphosting.utils.jetty.JettyLogger warn
WARNING: Error for /stockwatcher/greet
java.lang.VerifyError: Expecting a stackmap frame at branch target 17 in method com.google.gwt.sample.stockwatcher.server.GreetingServiceImpl.greetServer(Ljava/lang/String;)Ljava/lang/String; at offset 4
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2404)
    at java.lang.Class.getConstructor0(Class.java:2714)
    at java.lang.Class.newInstance0(Class.java:343)
    at java.lang.Class.newInstance(Class.java:325)
    at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153)
    at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:428)
    at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:339)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
    at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:35)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:58)
    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$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.appengine.tools.development.BackendServersFilter.doFilter(BackendServersFilter.java:97)
    at org.mortbay.jetty.servlet.ServletHandler$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$ApiProxyHandler.handle(JettyContainerService.java:351)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
    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)

我在本地运行apache2。

I'm running apache2 in local.

有什么想法？

推荐答案

我对Eclipse有同样的问题，并开始一个新的WebApplication。我通过打开项目属性，java编译器，检查启用项目特定设置和使用编译器合规性级别1.6
来解决它。它还向我发送了一条消息，告诉我需要加载1.6 JRE。
您还可以在项目属性，java构建路径，库选项卡，编辑JRE系统库中找到并确保您具有默认设置中的JRE6，或者您可以添加它并选择它以供使用。

I had the same problem with Eclipse and starting a new WebApplication. I solved it by opening project properties, java compiler, checked enable project specific settings and used compiler compliance level 1.6 Also it gaved me a message that i need to have the 1.6 JRE loaded. You find that also in project properties, java build path, Libraries tab, edit JRE system library and make sure you have JRE6 in default setting or you can add it and select it for use.

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