[JAVA] basis HttpServletRequest get the path of the API innocently tell?

• request.getRequestURL() 返回全路径

• request.getRequestURI() 返回除去 host（域名或者ip）部分的路径

• request.getContextPath() 返回 工程名部分，如果工程映射为/，此处返回则为空

• request.getServletPath() 返回除去 host 和 工程名部分 的路径

For chestnuts

System.out.println(request.getRequestURL());
System.out.println(request.getRequestURI());
System.out.println(request.getContextPath());
System.out.println(request.getServletPath());

Export

http://localhost:8080/spring-learn/user/login
/spring-learn/user/login
/spring-learn
/user/login