Java MyFaces hellow world应用程序给出NullPointerException错误
我是Java的初学者（在两周的阅读中），我想通过使用EclipseIDE创建的项目了解更多。我使用的是： -JavaJDK1.7 -朱诺月食 -Maven最新版本 -JBoss（7.1.1、6.2 EAP、WidlFly）-所有这些都具有相同的行为 -使用maven原型创建的maven项目：myfaces原型helloworld facelets 尝试运行时，我在页面中收到一个java.lang.NullPointerException。JBoss的日志显示： 根据我的研究，一个潜在的问题是这个原型项目试图覆盖JBoss中已有的facelets实现。这在JBoss7.1中是一个问题，但在7.2（6.2EAP）中也存在同样的错误。项目使用的PS:WAR\u BUNDLES\u JSF\u IMPL pom文件如下所示Java MyFaces hellow world应用程序给出NullPointerException错误,java,jsf,facelets,Java,Jsf,Facelets,我是Java的初学者（在两周的阅读中），我想通过使用EclipseIDE创建的项目了解更多。我使用的是： -JavaJDK1.7 -朱诺月食 -Maven最新版本 -JBoss（7.1.1、6.2 EAP、WidlFly）-所有这些都具有相同的行为 -使用maven原型创建的maven项目：myfaces原型helloworld facelets 尝试运行时，我在页面中收到一个java.lang.NullPointerException。JBoss的日志显示： 根据我的研究，一个潜在的问题是这个
<?xml version="1.0"?>
<!--
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
-->
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<description>MyProject web.xml</description>
<context-param>
<param-name>
org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL
</param-name>
<param-value>true</param-value>
</context-param>
<!-- Configure tomahawk taglib -->
<context-param>
<param-name>facelets.LIBRARIES</param-name>
<param-value>/WEB-INF/tomahawk.taglib.xml</param-value>
</context-param>
<!-- Use Documents Saved as *.xhtml -->
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<!-- Special Debug Output for Development -->
<context-param>
<param-name>facelets.DEVELOPMENT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Comma separated list of URIs of (additional) faces config
files. (e.g. /WEB-INF/my-config.xml) See JSF 1.0 PRD2,
10.3.2 Attention: You do not need to put
/WEB-INF/faces-config.xml in here.
</description>
<param-name>javax.faces.CONFIG_FILES</param-name>
<param-value>/WEB-INF/examples-config.xml</param-value>
</context-param>
<context-param>
<description>
State saving method: "client" or "server" (= default) See
JSF Specification 2.5.3
</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<description>
Only applicable if state saving method is "server" (=
default). Defines the amount (default = 20) of the latest
views are stored in session.
</description>
<param-name>
org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION
</param-name>
<param-value>20</param-value>
</context-param>
<context-param>
<description>
Only applicable if state saving method is "server" (=
default). If true (default) the state will be serialized to
a byte stream before it is written to the session. If false
the state will not be serialized to a byte stream.
</description>
<param-name>
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Only applicable if state saving method is "server" (=
default) and if
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION is true (=
default) If true (default) the serialized state will be
compressed before it is written to the session. If false the
state will not be compressed.
</description>
<param-name>
org.apache.myfaces.COMPRESS_STATE_IN_SESSION
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
This parameter tells MyFaces if javascript code should be
allowed in the rendered HTML output. If javascript is
allowed, command_link anchors will have javascript code that
submits the corresponding form. If javascript is not
allowed, the state saving info and nested parameters will be
added as url parameters. Default: "true"
</description>
<param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<description>
If true, rendered HTML code will be formatted, so that it is
"human readable". i.e. additional line separators and
whitespace will be written, that do not influence the HTML
code. Default: "true"
</description>
<param-name>org.apache.myfaces.PRETTY_HTML</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
If true, a javascript function will be rendered that is able
to restore the former vertical scroll on every request.
Convenient feature if you have pages with long lists and you
do not want the browser page to always jump to the top if
you trigger a link or button action that stays on the same
page. Default: "false"
</description>
<param-name>org.apache.myfaces.AUTO_SCROLL</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Used for encrypting view state. Only relevant for client
side state saving. See MyFaces wiki/web site documentation
for instructions on how to configure an application for
diffenent encryption strengths.
</description>
<param-name>org.apache.myfaces.SECRET</param-name>
<param-value>NzY1NDMyMTA=</param-value>
</context-param>
<context-param>
<description>
Validate managed beans, navigation rules and ensure that
forms are not nested.
</description>
<param-name>org.apache.myfaces.VALIDATE</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Treat readonly same as if disabled attribute was set for
select elements.
</description>
<param-name>
org.apache.myfaces.READONLY_AS_DISABLED_FOR_SELECTS
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Use the defined class as the class which will be called when
a resource is added to the ExtensionFilter handling. Using
StreamingAddResource here helps with performance. If you
want to add custom components and want to use the
ExtensionFilter, you need to provide your custom
implementation here.
</description>
<param-name>org.apache.myfaces.ADD_RESOURCE_CLASS</param-name>
<param-value>
org.apache.myfaces.renderkit.html.util.DefaultAddResource
</param-value>
</context-param>
<context-param>
<description>
Virtual path in the URL which triggers loading of resources
for the MyFaces extended components in the ExtensionFilter.
</description>
<param-name>
org.apache.myfaces.RESOURCE_VIRTUAL_PATH
</param-name>
<param-value>/faces/myFacesExtensionResource</param-value>
</context-param>
<context-param>
<description>
Check if the extensions-filter has been properly configured.
</description>
<param-name>
org.apache.myfaces.CHECK_EXTENSIONS_FILTER
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Define partial state saving as true/false.
</description>
<param-name>javax.faces.PARTIAL_STATE_SAVING_METHOD</param-name>
<param-value>false</param-value>
</context-param>
<!-- Extensions Filter -->
<filter>
<filter-name>extensionsFilter</filter-name>
<filter-class>
org.apache.myfaces.webapp.filter.ExtensionsFilter
</filter-class>
<init-param>
<description>
Set the size limit for uploaded files. Format: 10 - 10
bytes 10k - 10 KB 10m - 10 MB 1g - 1 GB
</description>
<param-name>uploadMaxFileSize</param-name>
<param-value>100m</param-value>
</init-param>
<init-param>
<description>
Set the threshold size - files below this limit are
stored in memory, files above this limit are stored on
disk.
Format: 10 - 10 bytes 10k - 10 KB 10m - 10 MB 1g - 1 GB
</description>
<param-name>uploadThresholdSize</param-name>
<param-value>100k</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>extensionsFilter</filter-name>
<url-pattern>*.jsf</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>extensionsFilter</filter-name>
<url-pattern>/faces/*</url-pattern>
</filter-mapping>
<!-- Listener, to allow Jetty serving MyFaces apps -->
<listener>
<listener-class>
org.apache.myfaces.webapp.StartupServletContextListener
</listener-class>
</listener>
<!-- Faces Servlet -->
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Faces Servlet Mapping -->
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<!-- Welcome files -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
myprojectweb.xml
org.jboss.jbossfaces.WAR\u BUNDLES\u JSF\u IMPL
真的
facelets.LIBRARIES
/WEB-INF/tomahawk.taglib.xml
javax.faces.DEFAULT_后缀
.xhtml
facelets.DEVELOPMENT
真的
（其他）面配置的URI的逗号分隔列表
文件夹。（例如/WEB-INF/my config.xml）参见JSF 1.0 PRD2，
10.3.2注意：您不需要
/这里是WEB-INF/faces-config.xml。
javax.faces.CONFIG_文件
/WEB-INF/examples-config.xml
状态保存方法：“客户端”或“服务器”（=默认值）请参阅
JSF规范2.5.3
javax.faces.STATE_保存方法
客户
仅当状态保存方法为“服务器”时适用(=
默认值）。定义最近一次付款的金额（默认值为20）
视图存储在会话中。
org.apache.myfaces.NUMBER\u会话中的\u视图\u
20
仅当状态保存方法为“服务器”时适用(=
默认值）。如果为true（默认），则状态将序列化为
写入会话之前的字节流。如果错误
该状态将不会序列化为字节流。
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION
真的
仅当状态保存方法为“服务器”时适用(=
（默认）如果
org.apache.myfaces.SERIALIZE\u会话中的状态为true(=
默认值）如果为true（默认值），则序列化状态为
在写入会话之前进行压缩。如果是假的
状态将不会被压缩。
org.apache.myfaces.COMPRESS\u STATE\u IN\u会话
真的
此参数告诉MyFaces是否应该使用javascript代码
在呈现的HTML输出中允许。如果javascript是
允许，命令链接锚将有javascript代码
提交相应的表格。如果javascript不是
如果允许，则将显示状态保存信息和嵌套参数
添加为url参数。默认值：“true”
org.apache.myfaces.ALLOW_JAVASCRIPT
真的
org.apache.myfaces.DETECT\u JAVASCRIPT
假的
如果为true，则将格式化呈现的HTML代码，以便
“人类可读”。i、 e.额外的线分离器和
将写入不影响HTML的空白
代码。默认值：“true”
org.apache.myfaces.PRETTY_HTML
真的
如果为true，则将呈现一个javascript函数，该函数可以
在每次请求时恢复前一个垂直滚动。
如果您有长列表的页面，并且您
如果出现以下情况，不希望浏览器页面始终跳转到顶部
您触发的链接或按钮动作保持不变
页默认值：“false”
org.apache.myfaces.AUTO_滚动
真的
用于加密视图状态。仅与客户相关
边状态保存。请参阅MyFaces wiki/网站文档
有关如何为配置应用程序的说明，请参见
不同的加密强度。
org.apache.myfaces.SECRET
NzY1NDMyMTA=
验证托管bean、导航规则并确保
表单不是嵌套的。
org.apache.myfaces.VALIDATE
真的
将readonly视为与为设置了disabled属性相同
选择元素。
org.apache.myfaces.READONLY\u作为\u禁用\u用于\u选择
真的
使用定义的类作为将在
资源被添加到ExtensionFilter处理中。使用
这里的StreamingAddressSource有助于提高性能。如果你
要添加自定义组件并使用
ExtensionFilter，您需要提供自定义
在这里执行。
org.apache.myfaces.ADD_RESOURCE_类
org.apache.myfaces.renderkit.html.util.DefaultAddResource
URL中触发资源加载的虚拟路径
对于ExtensionFilter中的MyFaces扩展组件。
org.apache.myfaces.RESOURCE\u虚拟路径
/faces/myFacesExtensionResource
检查扩展筛选器是否已正确配置。
org.apache.myfaces.CHECK\u EXTENSIONS\u过滤器
真的
将部分状态保存定义为t
<?xml version="1.0"?>
<!--
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
-->
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<description>MyProject web.xml</description>
<context-param>
<param-name>
org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL
</param-name>
<param-value>true</param-value>
</context-param>
<!-- Configure tomahawk taglib -->
<context-param>
<param-name>facelets.LIBRARIES</param-name>
<param-value>/WEB-INF/tomahawk.taglib.xml</param-value>
</context-param>
<!-- Use Documents Saved as *.xhtml -->
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<!-- Special Debug Output for Development -->
<context-param>
<param-name>facelets.DEVELOPMENT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Comma separated list of URIs of (additional) faces config
files. (e.g. /WEB-INF/my-config.xml) See JSF 1.0 PRD2,
10.3.2 Attention: You do not need to put
/WEB-INF/faces-config.xml in here.
</description>
<param-name>javax.faces.CONFIG_FILES</param-name>
<param-value>/WEB-INF/examples-config.xml</param-value>
</context-param>
<context-param>
<description>
State saving method: "client" or "server" (= default) See
JSF Specification 2.5.3
</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<description>
Only applicable if state saving method is "server" (=
default). Defines the amount (default = 20) of the latest
views are stored in session.
</description>
<param-name>
org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION
</param-name>
<param-value>20</param-value>
</context-param>
<context-param>
<description>
Only applicable if state saving method is "server" (=
default). If true (default) the state will be serialized to
a byte stream before it is written to the session. If false
the state will not be serialized to a byte stream.
</description>
<param-name>
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Only applicable if state saving method is "server" (=
default) and if
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION is true (=
default) If true (default) the serialized state will be
compressed before it is written to the session. If false the
state will not be compressed.
</description>
<param-name>
org.apache.myfaces.COMPRESS_STATE_IN_SESSION
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
This parameter tells MyFaces if javascript code should be
allowed in the rendered HTML output. If javascript is
allowed, command_link anchors will have javascript code that
submits the corresponding form. If javascript is not
allowed, the state saving info and nested parameters will be
added as url parameters. Default: "true"
</description>
<param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<description>
If true, rendered HTML code will be formatted, so that it is
"human readable". i.e. additional line separators and
whitespace will be written, that do not influence the HTML
code. Default: "true"
</description>
<param-name>org.apache.myfaces.PRETTY_HTML</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
If true, a javascript function will be rendered that is able
to restore the former vertical scroll on every request.
Convenient feature if you have pages with long lists and you
do not want the browser page to always jump to the top if
you trigger a link or button action that stays on the same
page. Default: "false"
</description>
<param-name>org.apache.myfaces.AUTO_SCROLL</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Used for encrypting view state. Only relevant for client
side state saving. See MyFaces wiki/web site documentation
for instructions on how to configure an application for
diffenent encryption strengths.
</description>
<param-name>org.apache.myfaces.SECRET</param-name>
<param-value>NzY1NDMyMTA=</param-value>
</context-param>
<context-param>
<description>
Validate managed beans, navigation rules and ensure that
forms are not nested.
</description>
<param-name>org.apache.myfaces.VALIDATE</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Treat readonly same as if disabled attribute was set for
select elements.
</description>
<param-name>
org.apache.myfaces.READONLY_AS_DISABLED_FOR_SELECTS
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Use the defined class as the class which will be called when
a resource is added to the ExtensionFilter handling. Using
StreamingAddResource here helps with performance. If you
want to add custom components and want to use the
ExtensionFilter, you need to provide your custom
implementation here.
</description>
<param-name>org.apache.myfaces.ADD_RESOURCE_CLASS</param-name>
<param-value>
org.apache.myfaces.renderkit.html.util.DefaultAddResource
</param-value>
</context-param>
<context-param>
<description>
Virtual path in the URL which triggers loading of resources
for the MyFaces extended components in the ExtensionFilter.
</description>
<param-name>
org.apache.myfaces.RESOURCE_VIRTUAL_PATH
</param-name>
<param-value>/faces/myFacesExtensionResource</param-value>
</context-param>
<context-param>
<description>
Check if the extensions-filter has been properly configured.
</description>
<param-name>
org.apache.myfaces.CHECK_EXTENSIONS_FILTER
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Define partial state saving as true/false.
</description>
<param-name>javax.faces.PARTIAL_STATE_SAVING_METHOD</param-name>
<param-value>false</param-value>
</context-param>
<!-- Extensions Filter -->
<filter>
<filter-name>extensionsFilter</filter-name>
<filter-class>
org.apache.myfaces.webapp.filter.ExtensionsFilter
</filter-class>
<init-param>
<description>
Set the size limit for uploaded files. Format: 10 - 10
bytes 10k - 10 KB 10m - 10 MB 1g - 1 GB
</description>
<param-name>uploadMaxFileSize</param-name>
<param-value>100m</param-value>
</init-param>
<init-param>
<description>
Set the threshold size - files below this limit are
stored in memory, files above this limit are stored on
disk.
Format: 10 - 10 bytes 10k - 10 KB 10m - 10 MB 1g - 1 GB
</description>
<param-name>uploadThresholdSize</param-name>
<param-value>100k</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>extensionsFilter</filter-name>
<url-pattern>*.jsf</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>extensionsFilter</filter-name>
<url-pattern>/faces/*</url-pattern>
</filter-mapping>
<!-- Listener, to allow Jetty serving MyFaces apps -->
<listener>
<listener-class>
org.apache.myfaces.webapp.StartupServletContextListener
</listener-class>
</listener>
<!-- Faces Servlet -->
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Faces Servlet Mapping -->
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<!-- Welcome files -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html">
<head>
<title>Hello World</title>
</head>
<body>
<ui:composition template="/template.xhtml">
<ui:define name="body">
<h:form id="form">
</h:form>
</ui:define>
</ui:composition>
</body>
</html>
<?xml version="1.0"?>
<!--
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
-->
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<description>MyProject web.xml</description>
<context-param>
<param-name>
org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL
</param-name>
<param-value>true</param-value>
</context-param>
<!-- Configure tomahawk taglib -->
<context-param>
<param-name>facelets.LIBRARIES</param-name>
<param-value>/WEB-INF/tomahawk.taglib.xml</param-value>
</context-param>
<!-- Use Documents Saved as *.xhtml -->
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<!-- Special Debug Output for Development -->
<context-param>
<param-name>facelets.DEVELOPMENT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Comma separated list of URIs of (additional) faces config
files. (e.g. /WEB-INF/my-config.xml) See JSF 1.0 PRD2,
10.3.2 Attention: You do not need to put
/WEB-INF/faces-config.xml in here.
</description>
<param-name>javax.faces.CONFIG_FILES</param-name>
<param-value>/WEB-INF/examples-config.xml</param-value>
</context-param>
<context-param>
<description>
State saving method: "client" or "server" (= default) See
JSF Specification 2.5.3
</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<description>
Only applicable if state saving method is "server" (=
default). Defines the amount (default = 20) of the latest
views are stored in session.
</description>
<param-name>
org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION
</param-name>
<param-value>20</param-value>
</context-param>
<context-param>
<description>
Only applicable if state saving method is "server" (=
default). If true (default) the state will be serialized to
a byte stream before it is written to the session. If false
the state will not be serialized to a byte stream.
</description>
<param-name>
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Only applicable if state saving method is "server" (=
default) and if
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION is true (=
default) If true (default) the serialized state will be
compressed before it is written to the session. If false the
state will not be compressed.
</description>
<param-name>
org.apache.myfaces.COMPRESS_STATE_IN_SESSION
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
This parameter tells MyFaces if javascript code should be
allowed in the rendered HTML output. If javascript is
allowed, command_link anchors will have javascript code that
submits the corresponding form. If javascript is not
allowed, the state saving info and nested parameters will be
added as url parameters. Default: "true"
</description>
<param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<description>
If true, rendered HTML code will be formatted, so that it is
"human readable". i.e. additional line separators and
whitespace will be written, that do not influence the HTML
code. Default: "true"
</description>
<param-name>org.apache.myfaces.PRETTY_HTML</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
If true, a javascript function will be rendered that is able
to restore the former vertical scroll on every request.
Convenient feature if you have pages with long lists and you
do not want the browser page to always jump to the top if
you trigger a link or button action that stays on the same
page. Default: "false"
</description>
<param-name>org.apache.myfaces.AUTO_SCROLL</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Used for encrypting view state. Only relevant for client
side state saving. See MyFaces wiki/web site documentation
for instructions on how to configure an application for
diffenent encryption strengths.
</description>
<param-name>org.apache.myfaces.SECRET</param-name>
<param-value>NzY1NDMyMTA=</param-value>
</context-param>
<context-param>
<description>
Validate managed beans, navigation rules and ensure that
forms are not nested.
</description>
<param-name>org.apache.myfaces.VALIDATE</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Treat readonly same as if disabled attribute was set for
select elements.
</description>
<param-name>
org.apache.myfaces.READONLY_AS_DISABLED_FOR_SELECTS
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Use the defined class as the class which will be called when
a resource is added to the ExtensionFilter handling. Using
StreamingAddResource here helps with performance. If you
want to add custom components and want to use the
ExtensionFilter, you need to provide your custom
implementation here.
</description>
<param-name>org.apache.myfaces.ADD_RESOURCE_CLASS</param-name>
<param-value>
org.apache.myfaces.renderkit.html.util.DefaultAddResource
</param-value>
</context-param>
<context-param>
<description>
Virtual path in the URL which triggers loading of resources
for the MyFaces extended components in the ExtensionFilter.
</description>
<param-name>
org.apache.myfaces.RESOURCE_VIRTUAL_PATH
</param-name>
<param-value>/faces/myFacesExtensionResource</param-value>
</context-param>
<context-param>
<description>
Check if the extensions-filter has been properly configured.
</description>
<param-name>
org.apache.myfaces.CHECK_EXTENSIONS_FILTER
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Define partial state saving as true/false.
</description>
<param-name>javax.faces.PARTIAL_STATE_SAVING_METHOD</param-name>
<param-value>false</param-value>
</context-param>
<!-- Extensions Filter -->
<filter>
<filter-name>extensionsFilter</filter-name>
<filter-class>
org.apache.myfaces.webapp.filter.ExtensionsFilter
</filter-class>
<init-param>
<description>
Set the size limit for uploaded files. Format: 10 - 10
bytes 10k - 10 KB 10m - 10 MB 1g - 1 GB
</description>
<param-name>uploadMaxFileSize</param-name>
<param-value>100m</param-value>
</init-param>
<init-param>
<description>
Set the threshold size - files below this limit are
stored in memory, files above this limit are stored on
disk.
Format: 10 - 10 bytes 10k - 10 KB 10m - 10 MB 1g - 1 GB
</description>
<param-name>uploadThresholdSize</param-name>
<param-value>100k</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>extensionsFilter</filter-name>
<url-pattern>*.jsf</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>extensionsFilter</filter-name>
<url-pattern>/faces/*</url-pattern>
</filter-mapping>
<!-- Listener, to allow Jetty serving MyFaces apps -->
<listener>
<listener-class>
org.apache.myfaces.webapp.StartupServletContextListener
</listener-class>
</listener>
<!-- Faces Servlet -->
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Faces Servlet Mapping -->
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<!-- Welcome files -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>