this is a java file ,it can extra anyfile,like jsp,jsf,html.you can extra anything you like,you just need to config the file path and extra start character,and extra end character,for example,you want to get id's value from file ,like "id=\"jsp-tag-id\"",you want to get "jsp-tag-id",then you should config start charcter id=" and the end character " ,so will get the content from id="**&&&##$%%anything"
