struts源码之二

struts2初始化静态流程如下：

 

详细描述

 

struts2最新版本的初始化类为StrutsPrepareAndExecuteFilter

在web.xml中可以清晰的看到这一点

<filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>

 

进入StrutsPrepareAndExecuteFilter类可以看到它实现了filter接口

初始化当然是init方法了

 

 public void init(FilterConfig filterConfig) throws ServletException {
        InitOperations init = new InitOperations();
        try {
            FilterHostConfig config = new FilterHostConfig(filterConfig);
            init.initLogging(config);
            Dispatcher dispatcher = init.initDispatcher(config);
            init.initStaticContentLoader(config, dispatcher);

            prepare = new PrepareOperations(filterConfig.getServletContext(), dispatcher);
            execute = new ExecuteOperations(filterConfig.getServletContext(), dispatcher);
			this.excludedPatterns = init.buildExcludedPatternsList(dispatcher);

            postInit(dispatcher, filterConfig);
        } finally {
            init.cleanup();
        }

    }

 

未完待续