我在Java中有这个servlet代码:
I have this servlet code in java:
package servlets; import java.io.*; import java.util.*; import javax.servlet.*; import java.*; public class Servlet1 extends GenericServlet{ private ServletConfig sc; public void init(ServletConfig conf) throws ServletException{ super.init(conf); sc = conf; } public void read_file(){ String filename = "/web/WEB-INF/Data.txt"; BufferedReader br = new BufferedReader(new FileReader(filename)); // Why this doesn't work ? } public void service(ServletRequest req, ServletResponse resp) throws ServletException,IOException{ resp.setContentType("text/html; charset=windows-1251"); PrintWriter pw = resp.getWriter(); pw.println("<html><head>"); pw.println("<title>sdasdasda</title>"); pw.println("</head><body><h2>Servlet information</h2>"); pw.println("Servlet name - "+sc.getServletName()+ "<br>"); pw.println("Servlet parametrs: <br>"); //pw.println(read_file()); Enumeration names = sc.getInitParameterNames(); while(names.hasMoreElements()){ String name = (String)names.nextElement(); pw.print(name + ": "); pw.println(sc.getInitParameter(name)+"<br>"); } pw.println("</body></html>"); pw.flush(); pw.close(); } public void destroy(){ sc = null; } }此BufferedReader br = new BufferedReader(new FileReader(filename));始终显示没有吮吸文件，但我将其放在ProjectName/web/Web-INF/文件夹中. 我如何从该文件读取或获取正确的路径 ?
And this BufferedReader br = new BufferedReader(new FileReader(filename)); always shows that there is no suck file, but I put it in ProjectName/web/Web-INF/ folder. How do i read from this file, or get the right path to it ?
推荐答案首先，您要指定绝对路径(您的路径以/开头)
First of all you are specifying an absolute path (your path starts with /)
第二个FileReader不是在Web应用程序中加载资源的正确方法，如果不提取应用程序之争怎么办?它仍然会失败.
Second FileReader is not the correct way of loading a resource in a web application, what is if your application war is not extracted? It will still fail.
您应使用 ServletContext#getResourceAsStream 以获得 InputStream 并使用它来读取您的资源.
You should use ServletContext#getResourceAsStream to get an InputStream and use it to read your resource.
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