he URL extension to use to determine if the request is meant for a Struts action
            用URL扩展名来确定是否这个请求是被用作Struts action，其实也就是设置 action的后缀，例如login.do的\'do\'字。

struts.configuration
           The org.apache.struts2.config.Configuration implementation class
             org.apache.struts2.config.Configuration接口名

struts.configuration.files
           A list of configuration files automatically loaded by Struts
            struts自动加载的一个配置文件列表

struts.configuration.xml.reload
           Whether to reload the XML configuration or not
            是否加载xml配置(true,false)

struts.continuations.package
            The package containing actions that use Rife continuations
            含有actions的完整连续的package名称

struts.custom.i18n.resources
           Location of additional localization properties files to load
            加载附加的国际化属性文件（不包含.properties后缀）

struts.custom.properties
           Location of additional configuration properties files to load
            加载附加的配置文件的位置

struts.devMode
           Whether Struts is in development mode or not
            是否为struts开发模式

struts.dispatcher.parametersWorkaround
           Whether to use a Servlet request parameter workaround necessary for some versions of WebLogic
             （某些版本的weblogic专用）是否使用一个servlet请求参数工作区（PARAMETERSWORKAROUND）

struts.enable.DynamicMethodInvocation
           Allows one to disable dynamic method invocation from the URL
             允许动态方法调用

struts.freemarker.manager.classname
           The org.apache.struts2.views.freemarker.FreemarkerManager implementation class
            org.apache.struts2.views.freemarker.FreemarkerManager接口名

struts.i18n.encoding
           The encoding to use for localization messages
            国际化信息内码

struts.i18n.reload
           Whether the localization messages should automatically be reloaded
            是否国际化信息自动加载

struts.locale
           The default locale for the Struts application
            默认的国际化地区信息

struts.mapper.class
           The org.apache.struts2.dispatcher.mapper.ActionMapper implementation class
             org.apache.struts2.dispatcher.mapper.ActionMapper接口

struts.multipart.maxSize
           The maximize size of a multipart request (file upload)
            multipart请求信息的最大尺寸（文件上传用）

struts.multipart.parser
           The org.apache.struts2.dispatcher.multipart.
           MultiPartRequest parser implementation for a multipart request (file upload)
           专为multipart请求信息使用的org.apache.struts2.dispatcher.multipart.MultiPartRequest解析器接口（文件上传用）

struts.multipart.saveDir
           The directory to use for storing uploaded files
            设置存储上传文件的目录夹

struts.objectFactory
           The com.opensymphony.xwork2.ObjectFactory implementation class
            com.opensymphony.xwork2.ObjectFactory接口（spring）

struts.objectFactory.spring.autoWire
           Whether Spring should autoWire or not
            是否自动绑定Spring

struts.objectFactory.spring.useClassCache
           Whether Spring should use its class cache or not
            是否spring应该使用自身的cache

struts.objectTypeDeterminer
           The com.opensymphony.xwork2.util.ObjectTypeDeterminer implementation class
             com.opensymphony.xwork2.util.ObjectTypeDeterminer接口

struts.serve.static.browserCache
   If static content served by the Struts filter should set browser caching header properties or not
            是否struts过滤器中提供的静态内容应该被浏览器缓存在头部属性中

struts.serve.static
           Whether the Struts filter should serve static content or not
            是否struts过滤器应该提供静态内容

struts.tag.altSyntax
           Whether to use the alterative syntax for the tags or not
            是否可以用替代的语法替代tags

struts.ui.templateDir
           The directory containing UI templates
            UI templates的目录夹

struts.ui.theme
           The default UI template theme
            默认的UI template主题

struts.url.http.port
           The HTTP port used by Struts URLs
            设置http端口

struts.url.https.port
           The HTTPS port used by Struts URLs
            设置https端口

struts.url.includeParams
           The default includeParams method to generate Struts URLs
           在url中产生 默认的includeParams

struts.velocity.configfile
           The Velocity configuration file path
            velocity配置文件路径

struts.velocity.contexts
           List of Velocity context names
            velocity的context列表

struts.velocity.manager.classname
           org.apache.struts2.views.velocity.VelocityManager implementation class
            org.apache.struts2.views.velocity.VelocityManager接口名

struts.velocity.toolboxlocation
           The location of the Velocity toolbox
            velocity工具盒的位置
struts.xslt.nocache
           Whether or not XSLT templates should not be cached
            是否XSLT模版应该被缓存

例如：

struts.i18n.reload=true
struts.devMode = true
struts.configuration.xml.reload=true
struts.continuations.package=org.apache.struts2.showcase
struts.custom.i18n.resources=globalMessages
#struts.action.extension=jspa
struts.url.http.port = 8080
struts.freemarker.manager.classname=customFreemarkerManager
struts.serve.static=true
struts.serve.static.browserCache=false
struts.codebehind.defaultPackage=person