配置Tomcat直接显示目录结构和文件列表
tomcat版本：apache-tomcat-6.0.20
Tomcat是直接显示目录结构和文件列表，只是在配置里面给关闭了。
关键在这里：
..\apache-tomcat-6.0.20\conf\web.xml
<servlet> <servlet-name>default</servlet-name> <servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class> <init-param> <param-name>debug</param-name> <param-value>0</param-value> </init-param> <init-param> <param-name>listings</param-name> <param-value>false</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet>
<!-- The default servlet for all web applications, that serves static --> <!-- resources. It processes all requests that are not mapped to other --> <!-- servlets with servlet mappings (defined either here or in your own --> <!-- web.xml file. This servlet supports the following initialization --> <!-- parameters (default values are in square brackets): --> <!-- --> <!-- debug Debugging detail level for messages logged --> <!-- by this servlet. [0] --> <!-- --> <!-- fileEncoding Encoding to be used to read static resources --> <!-- [platform default] --> <!-- --> <!-- input Input buffer size (in bytes) when reading --> <!-- resources to be served. [2048] --> <!-- --> <!-- listings Should directory listings be produced if there --> <!-- is no welcome file in this directory? [false] --> <!-- WARNING: Listings for directories with many --> <!-- entries can be slow and may consume --> <!-- significant proportions of server resources. --> <!-- --> <!-- output Output buffer size (in bytes) when writing --> <!-- resources to be served. [2048] --> <!-- --> <!-- readonly Is this context "read only", so HTTP --> <!-- commands like PUT and DELETE are --> <!-- rejected? [true] --> <!-- --> <!-- readmeFile File name to display with the directory --> <!-- contents. [null] --> <!-- --> <!-- sendfileSize If the connector used supports sendfile, this --> <!-- represents the minimal file size in KB for --> <!-- which sendfile will be used. Use a negative --> <!-- value to always disable sendfile. [48] --> <!-- --> <!-- useAcceptRanges Should the Accept-Ranges header be included --> <!-- in responses where appropriate? [true] --> <!-- --> <!-- For directory listing customization. Checks localXsltFile, then --> <!-- globalXsltFile, then defaults to original behavior. --> <!-- --> <!-- localXsltFile Make directory listings an XML doc and --> <!-- pass the result to this style sheet residing --> <!-- in that directory. This overrides --> <!-- globalXsltFile[null] --> <!-- --> <!-- globalXsltFile Site wide configuration version of --> <!-- localXsltFile This argument is expected --> <!-- to be a physical file. [null] --> <!-- --> <!-- -->
