我想创建一个需要读取.txt项目目录中的文件的应用程序.
这是我的代码index.jsp:
<%@page import="java.io.FileReader"%>
<%@page import="java.io.BufferedReader"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Read Text</title>
</head>
<body>
<%
BufferedReader reader = new BufferedReader(new FileReader("aFile.txt"));
StringBuilder sb = new StringBuilder();
String line;
while((line = reader.readLine())!= null){
sb.append(line+"\n");
}
out.println(sb.toString());
%>
</body>
</html>
当我执行上面的代码时,我的浏览器告诉我aFile.txt无法找到.然后,我放入aFile.txt了与此网页run(index.jsp)相同的目录.我想知道,我应该写什么来找到目录aFile.txt
这就是我的问题得到解决的方法.谢谢Ahmad hasem
<%@page import="java.io.File"%>
<%@page import="java.io.InputStreamReader"%>
<%@page import="java.net.URL"%>
<%@page import="java.io.FileReader"%>
<%@page import="java.io.BufferedReader"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Read Text</title>
</head>
<body>
<%
String jspPath = session.getServletContext().getRealPath("/res");
String txtFilePath = jspPath+ "/aFile.txt";
BufferedReader reader = new BufferedReader(new FileReader(txtFilePath));
StringBuilder sb = new StringBuilder();
String line;
while((line = reader.readLine())!= null){
sb.append(line+"\n");
}
out.println(sb.toString());
%>
</body>
</html>
要获取正在运行的JSP的目录,可以调用以下代码:
String jspPath = session.getServletConfig().getServletContext().getRealPath("/");
此代码假定JSP驻留在Web应用程序的根目录中.然后,您可以将txt文件名附加到jspPath
String txtFilePath = jspPath + java.util.File.separator + "aFile.txt";