apache - Tomcat without index.html show files in directory -

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i wondering how make tomcat show files in directory when index.html not in root directory? gives me error page.

description requested resource  (/tutorials/ios/exercise-files/ex_files_ios4_web_apps/ch02/) not available.

open tomcat's own /conf/web.xml file (or 1 in servers project if you're using eclipse), find <servlet> entry of defaultservlet , change listings initialization parameter false true. 

<init-param>     <param-name>listings</param-name>     <param-value>true</param-value> </init-param>

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