生成javax.servlet.ServletException文件时，MGWT中的"javax.servlet.ServletException: unkown设备“

Question

我用mgwt和GWTP。在此页上编写了如何生成Html5Manifest文件。

在dev模式下运行我的应用程序时，我会得到以下错误：

[WARN] /testmobile.manifest
javax.servlet.ServletException: unkown device
    at com.googlecode.mgwt.linker.server.Html5ManifestServletBase.doGet(Html5ManifestServletBase.java:115)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:324)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:829)
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)
[ERROR] 500 - GET /testmobile.manifest (192.168.178.21) 3009 bytes

这是我的gwt.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.5.1//EN"
  "http://google-web-toolkit.googlecode.com/svn/tags/2.5.1/distro-source/core/src/gwt-module.dtd">
<module rename-to='testmobile'>
    <!-- Inherit the core Web Toolkit stuff.                        -->
    <inherits name="com.google.gwt.user.User"/>
    <inherits name='com.google.gwt.core.Core'/>
    <inherits name='com.google.gwt.inject.Inject' />
    <inherits name='com.google.gwt.resources.Resources' />

    <inherits name="com.googlecode.mgwt.MGWT"/>

    <!-- Other module inherits                                      -->
    <inherits name='com.gwtplatform.dispatch.Dispatch'/>
    <inherits name='com.gwtplatform.mvp.Mvp' />

    <inherits name="com.googlecode.mgwt.linker.Linker" />
    <add-linker name="permutationmaplinker" />

    <extend-configuration-property name="html5manifestlinker_files" value="./" />
    <extend-configuration-property name="html5manifestlinker_files" value="index.html" />
    <extend-configuration-property name="html5manifestlinker_files" value="index.css" />


  <!-- Specify the app entry point class.                         -->
  <entry-point class='test.mobile.client.Testgwtp'/>


    <inherits name="com.google.gwt.logging.Logging" />
    <set-property name="gwt.logging.logLevel" value="INFO" />
    <set-property name="gwt.logging.enabled" value="TRUE" />
    <set-property name="gwt.logging.popupHandler" value="DISABLED" />
    <set-property name="gwt.logging.developmentModeHandler" value="ENABLED" />  



    <set-configuration-property name="gin.ginjector.modules"
                                value="test.mobile.client.gin.ClientModule"/>

<set-property name="user.agent" value="safari" />

    <!-- Specify the paths for translatable code                    -->
    <source path='client'/>
    <source path='shared'/>

</module>

这是我的web.xml文件：

<!-- Default page to serve -->
<welcome-file-list>
    <welcome-file>index.html</welcome-file>
</welcome-file-list>

<!-- https://code.google.com/p/mgwt/wiki/HTML5Manifest -->
<servlet>
    <servlet-name>ManifestServlet</servlet-name>
    <servlet-class>com.googlecode.mgwt.linker.server.MGWTHtml5ManifestServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>ManifestServlet</servlet-name>
    <url-pattern>/testmobile.manifest</url-pattern>
</servlet-mapping>

这是我的index.html文件：

<html manifest="/testmobile.manifest">
<head>
    <title>test</title>
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">

      <link type="text/css" rel="stylesheet" href="index.css">
    <script type="text/javascript" language="javascript" src="testmobile/testmobile.nocache.js"></script>
</head>
<body>

    <!-- OPTIONAL: include this if you want history support -->
    <iframe src="javascript:''" id="__gwt_historyFrame" tabIndex='-1' style="position:absolute;width:0;height:0;border:0"></iframe>

</body>
</html>

如何防止此错误？

编辑:我在这里发现，https://code.google.com/p/mgwt/issues/detail?id=294，当您更改默认排列时，您必须更改置换，但我不知道如何更改？

编辑:插入后的

<add-linker name="xsiframe"/> 

对于我的web.xml文件，我有一个具有以下内容的编译-mappings.txt文件：

3CF5F28779DC3102DF51566915301A19.cache.js
locale default
mobile.user.agent mobilesafari

4086115B0405F7965FF008436AFD8C97.cache.js
locale de
mobile.user.agent mobilesafari

69E3CCD13FF82D3DA3EBC7EDAE5A1588.cache.js
locale de
mobile.user.agent not_mobile

C35440AF74DD89E43810D85756CC4CEE.cache.js
locale default
mobile.user.agent not_mobile

Devmode:devmode.js

Answer 1

如果将<inherits name="com.googlecode.mgwt.MGWT" />添加到gwt.xml文件中，那么它应该可以工作。

有些属性(我猜是mgwt.os和mobile.user.agent )可能不存在。它们对于决定必须提供哪种清单是有用的。

Answer 2

删除html文件中模块名之前的"/“

<html manifest="/testmobile.manifest">

它应该看起来像

<html manifest="testmobile.manifest">