首页<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html><html><head><meta charset="UTF-8"><title>Read Text File in JSP</title></head><body><% String filePath = "/WEB-INF/data/file.txt"; // 相对路径，文件放在WEB-INF目录下 String realPath = application.getRealPath(filePath); // 获取文件的真实路径 BufferedReader reader = new BufferedReader(new FileReader(realPath)); String line = null; while ((line = reader.readLine()) != null) { out.println(line); // 输出文件内容到浏览器 } reader.close();%></body></html>优化这段代码

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html><html><head><meta charset="UTF-8"><title>Read Text File in JSP</title></head><body><% String filePath = "/WEB-INF/data/file.txt"; // 相对路径，文件放在WEB-INF目录下 String realPath = application.getRealPath(filePath); // 获取文件的真实路径 BufferedReader reader = new BufferedReader(new FileReader(realPath)); String line = null; while ((line = reader.readLine()) != null) { out.println(line); // 输出文件内容到浏览器 } reader.close();%></body></html>优化这段代码

时间: 2024-04-26 15:20:15 浏览: 148

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Read Text File in JSP</title> </head> <body> <% String filePath = "/WEB-INF/data/file.txt"; // 相对路径，文件放在WEB-INF目录下 String realPath = application.getRealPath(filePath); // 获取文件的真实路径 try (BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(realPath), "UTF-8"))) { String line = null; while ((line = reader.readLine()) != null) { out.println(line); // 输出文件内容到浏览器 } } catch (IOException e) { e.printStackTrace(); } %> </body> </html> 优化点： 1. 使用 try-with-resources 简化代码； 2. 使用 InputStreamReader 指定编码，避免文件编码与 JSP 页面编码不一致导致乱码； 3. 添加异常处理，避免出现异常导致页面无法正常加载。

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