ServletContext是application 对象所对应的接口,它具有一些高级功能,其中最常见的就是获取绝对路径(文件读写的操作,文件上传等应用)。
ServletContext.getRealPath(“资源在项目中的路径”);
例:
public void doGet(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException{
ServletContext application = this.getServletContext();
String realPath = application.getRealPath("/");
// String realPath = this.getServletContext().getRealPath("/");
System.out.println("获得项目跟目录据对路径:"+realPath);
}
//ServletContext对象的获取方法
1,通过session获得, javax.servlet.http.HttpSession.getServletContext();
2,通过pageContext获得, javax.servlet.jsp.pageContext.getServletContext();
3, 通过ServletConfig获得, javax.servlet.ServletConfig.getServletContext();
4 通过servlet获得, javax.servlet.http.HttpServlet.getServletContext();
ServletContext.getRealPath(“资源在项目中的路径”);
例:
public void doGet(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException{
ServletContext application = this.getServletContext();
String realPath = application.getRealPath("/");
// String realPath = this.getServletContext().getRealPath("/");
System.out.println("获得项目跟目录据对路径:"+realPath);
}
//ServletContext对象的获取方法
1,通过session获得, javax.servlet.http.HttpSession.getServletContext();
2,通过pageContext获得, javax.servlet.jsp.pageContext.getServletContext();
3, 通过ServletConfig获得, javax.servlet.ServletConfig.getServletContext();
4 通过servlet获得, javax.servlet.http.HttpServlet.getServletContext();