java中HttpServletRequest常用获取url、资源名等方法总结

HttpServletRequest客户端获取请求，客户端通过HTTP协议访问服务器时，HTTP请求头中的所有信息都封装在这个对象中。所以我们能够从对象中获取相应信息

端口

request.getServerPort() ;

获取服务器名称

request.getContextPath();

获取工程名称

request.getContextPath()；

获取servlet路径

request.getServletPath().substring(0,request.getServletPath().lastIndexOf("/"))；

全路径：http://localhost:8080/iswustserver/iswust/library/borrow

request.getServerName();

System.out.println("ServerName:"+request.getServerName());

request.getServerPort();

System.out.println("ServerPort:"+request.getServerPort());

request.getContextPath();

System.out.println("ContextPath" + request.getContextPath());

request.getServletPath();

System.out.println("ServletPath" + request.getServletPath());

request.getRequestURI();

System.out.println("RequestURI" + request.getRequestURI());

request.getRequestURL();

System.out.println("RequestURL" + request.getRequestURL());

/*String beanname = requestPath.substring(requestPath.indexOf("iswust/") + 7,

requestPath.indexOf("iswust/") + 11);*/