MyEclipse------File类的各种方法

usingFile.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

    String path = request.getContextPath();

    String basePath = request.getScheme() + "://"

            + request.getServerName() + ":" + request.getServerPort()

            + path + "/";

%>

<%@page import="java.io.*" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<base href="<%=basePath%>">

<title>My JSP 'usingFile.jsp' starting page</title>

</head>

<body>

    <!-- String thePath=request.getRealPath("");作用：获取取得你当前运行文件在服务器上的绝对路径 -->

    <%

        //path=request.getRealPath("");

        //out.println(path);

        //String pathe=request.getRealPath("/");

        //out.print(pathe);

     %>

     <br>

    <%

        String thePath=request.getRealPath("")+"\\file";

        out.print(thePath+"<br>");

        File dir=new File(thePath);

        File myFile=new File(thePath,"usingFile.jsp");

        File notExitFile=new File(thePath,"file.txt");

        out.print("目录"+thePath+"是否存在:  "+dir.exists()+"<br><br>");

        out.print("文件"+thePath+"\\usingFile.jsp是否存在:  "+myFile.exists()+"<br><br>");

        out.print("文件"+thePath+"\\file.txt是否存在:  "+notExitFile.exists()+"<br><br>");

        out.print("文件"+thePath+"\\usingFile.jsp是否可读:  "+myFile.canRead()+"<br><br>");

        out.print("文件"+thePath+"\\usingFile.jsp是否可写:  "+myFile.canWrite()+"<br>");

     %>

</body>

</html>
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MyEclipse------File类的各种方法

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