Get relative and absolute paths in Servlet and class

Get relative and absolute paths in Servlet and class

Obtain relative and absolute paths in JSP

Absolute path corresponding to the root directory: request. absolute path of the getrequesturi () file: application. getrealpath (request. getrequesturi (); absolute path of the current web application: application. getrealpath ("/"); get the upper directory of the request file: New file (application. getrealpath (request. getrequesturi ())). getparent ()

Get relative and absolute paths in Servlet

Absolute path corresponding to the root directory: request. getservletpath ();Result:/Servlet/client_note specifies the absolute path of the folder: This. getservletcontext (). getrealpath (URL); // The URL is a known file name "/upload"Result: D: \ Tomcat 6.0 \ webapps \ anxunclientsearch \ Upload File absolute path: request. getsession (). getservletcontext (). getrealpath (request. getrequesturi ())Result: D: \ Tomcat 6.0 \ webapps \ anxunclientsearch \ servlet \ client_note absolute path of the current web application: servletconfig. getservletcontext (). getrealpath ("/");

(Several methods for obtaining the servletcontext object: javax. servlet. http. httpsession. getservletcontext () javax. servlet. jsp. pagecontext. getservletcontext () javax. servlet. servletconfig. getservletcontext ())

--------------------- Test data ------------------------

System. out. println ("absolute path corresponding to the root directory" + request. getservletpath (); system. out. println ("absolute file path" + request. getsession (). getservletcontext (). getrealpath (request. getrequesturi (); system. out. println ("content path:" + request. getcontextpath (); system. out. println ("absolute path:" + request. getrequesturl ());

Absolute path of the root directory/servlet/client_note file D: \ Tomcat 6.0 \ webapps \ anxunclientsearch \ servlet \ client_note path:/anxunclientsearch absolute path: http: // 192.168.1.102: 8080/anxunclientsearch/servlet/client_note

Obtain relative and absolute paths in the class

According to the java. Io. File doc, by default, new file ("/") represents the directory system. getproperty ("user. dir ").

--------------------- Test data ------------------------

System. Out. println ("absolute path corresponding to the root directory" + request. getservletpath ());