Java 读写文件避免乱码

深碍√TFBOYSˉ_ 2021-12-04 09:15 255阅读 0赞

转载自[https://www.cnblogs.com/first-ykw/p/8856803.html][https_www.cnblogs.com_first-ykw_p_8856803.html]

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### 1.读文件： ###

/**
          * 读取文件内容
          * 
          * @param filePathAndName
          * String 如 c:\\1.txt 绝对路径
          * @return boolean
          */
        public static String readFile(String filePath) {
            String fileContent = "";
            try {
                File f = new File(filePath);
                if (f.isFile() && f.exists()) {
                    InputStreamReader read = new InputStreamReader(new FileInputStream(f), "UTF-8");
                    BufferedReader reader = new BufferedReader(read);
                    String line;
                    while ((line = reader.readLine()) != null) {
                        fileContent += line;
                    }
                    read.close();
                }
            } catch (Exception e) {
                System.out.println("读取文件内容操作出错");
                e.printStackTrace();
            }
            return fileContent;
        }

### 2.写文件 ###

/**
         * 
         * @Title: writeFile
         * @Description: 写文件
         * @param @param filePath 文件路径
         * @param @param fileContent    文件内容
         * @return void    返回类型
         * @throws
         */
        public static void writeFile(String filePath, String fileContent) {
            try {
                File f = new File(filePath);
                if (!f.exists()) {
                    f.createNewFile();
                }
                OutputStreamWriter write = new OutputStreamWriter(new FileOutputStream(f), "UTF-8");
                BufferedWriter writer = new BufferedWriter(write);
                writer.write(fileContent);
                writer.close();
            } catch (Exception e) {
                System.out.println("写文件内容操作出错");
                e.printStackTrace();
            }
        }

[https_www.cnblogs.com_first-ykw_p_8856803.html]: https://www.cnblogs.com/first-ykw/p/8856803.html