Servlet 中读取文件方法。

it2022-05-05  127

public class ReadfileServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // 1.txt没有发布,所以不能访问 String filename3 = "/3.txt"; filename3 = this.getServletContext().getRealPath(filename3); String filename2 = "/WEB-INF/classes/2.txt"; filename2 = this.getServletContext().getRealPath(filename2); String filename1 = "/WEB-INF/4.txt"; filename1 = this.getServletContext().getRealPath(filename1); try { readfile(filename1); } catch (Exception e) { e.printStackTrace(); } } public static void readfile(String filename) throws Exception { FileInputStream fs = new FileInputStream(filename); byte[] b = new byte[1024]; int a; while ((a = fs.read(b)) != -1) { String str = new String(b, 0, a); System.out.println(str); } fs.close(); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }

 

转载于:https://www.cnblogs.com/jqy518/archive/2013/04/12/3016265.html


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