java - 无法通过本地主机访问Google App Engine

我正在使用Mac OS X 10.7.4，应用程序引擎sdk 1.7.0，eclipse juno和Java作为编程语言。问题在于，当将其部署在appspot上时，该应用程序可以很好地运行，但不能在localhost上运行。当以Web应用程序在端口8888或任何其他端口上运行时（如果从配置中进行更改），该日志表示服务器正在运行，但是当我单击URL时，什么也没有发生，并且一段时间后连接超时。调试时，它给出错误：Cannot connect to VM。下面显示了来自控制台的运行和调试日志，请给我帮助，我已经在网上搜索了所有内容，但找不到解决方案。

调试时记录：

ERROR: transport error 202: handshake failed - connection prematurally closed
ERROR: JDWP: Failed to initialize transport via localhost:49741, trying localhost via 127.0.0.1:49741
ERROR: transport error 202: recv failed during handshake: Connection reset by peer
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [../../../src/share/back/debugInit.c:690]
FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197)

运行时记录：

2012-07-17 19:07:42.504 java[417:407] [Java CocoaComponent compatibility mode]: Enabled
2012-07-17 19:07:42.505 java[417:407] [Java CocoaComponent compatibility mode]: Setting timeout for SWT to 0.100000
Jul 17, 2012 2:07:49 PM com.google.apphosting.utils.jetty.JettyLogger info
INFO: Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger
Jul 17, 2012 2:07:50 PM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
INFO: Successfully processed /Volumes/DATA 1/Google App Engine/Java/HelloWorld/war/WEB-INF/appengine-web.xml
Jul 17, 2012 2:07:50 PM com.google.apphosting.utils.config.AbstractConfigXmlReader readConfigXml
INFO: Successfully processed /Volumes/DATA 1/Google App Engine/Java/HelloWorld/war/WEB-INF/web.xml
Jul 17, 2012 7:07:52 PM com.google.appengine.tools.development.DevAppServerImpl start
INFO: The server is running at localhost:8888/
Jul 17, 2012 7:07:52 PM com.google.appengine.tools.development.DevAppServerImpl start
INFO: The admin console is running at localhost:8888/_ah/admin

从命令行运行时记录：

    Jul 21, 2012 3:23:19 PM com.google.apphosting.utils.jetty.JettyLogger info
    INFO: Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger
    Jul 21, 2012 3:23:19 PM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
    INFO: Successfully processed /Volumes/DATA 1/Softwares/appengine-java-sdk-1.7.0/demos
    /guestbook/war/WEB-INF/appengine-web.xml
    Jul 21, 2012 3:23:19 PM com.google.apphosting.utils.config.AbstractConfigXmlReader readConfigXml
    INFO: Successfully processed /Volumes/DATA 1/Softwares/appengine-java-sdk-1.7.0/demos/guestbook/war/WEB-INF/web.xml
    Jul 21, 2012 8:23:22 PM com.google.appengine.tools.development.DevAppServerImpl start
    INFO: The server is running at http://localhost:8080/
    Jul 21, 2012 8:23:23 PM com.google.appengine.tools.development.DevAppServerImpl start
    INFO: The admin console is running at http://localhost:8080/_ah/admin

最佳答案

检查以下内容：

1）如果应用程序实际上已经启动。在终端中输入“ ps ax | grep java”
2）如果应用程序已绑定到端口。安装nmap（不确定如何在Mac上执行此操作），然后使用“ nmap localhost”运行它。您将看到使用的端口和协议的列表。如果您看不到带有http的8888，则说明有问题。