获取web项目路径

http://topic.csdn.net/u/20100329/18/79547b81-7947-4923-b615-0d06652608a6.html

<%  
  //在Servlet与JSP中取得当前文件所在的相对路径与绝对路径  
   
  //JSP中  
   
  out.println("根目录所对应的绝对路径:" + request.getRequestURI() + "<br/>");  
   
  String strPathFile = application.getRealPath(request.getRequestURI());  
  out.println("文件的绝对路径:" + strPathFile+ "<br/>");  
   
  String strDirPath = new File(application.getRealPath(request.getRequestURI())).getParent();  
  out.println("目录的绝对路径:" + strDirPath + "<br/>");  
  %>  
   
  //Servlet中  
  //JSP中的application对象就是Servlet中的ServerContext，所以在Servlet中是如此获得  
  //import java.io.File;  
   
  System.out.println("根目录所对应的绝对路径:" + request.getServletPath() + "<br/>");  
   
  String strPathFile = request.getSession().getServletContext().getRealPath(request.getRequestURI());  
  System.out.println("文件的绝对路径:" + strPathFile + "<br/>");  
   
  String strDirPath = new File(request.getSession().getServletContext().getRealPath(request.getRequestURI())).getParent();  
  System.out.println("目录的绝对路径:" + strDirPath + "<br/>");