Home  >  Article  >  Java  >  How to read and write files in java to avoid garbled characters

How to read and write files in java to avoid garbled characters

尚
Original
2019-12-17 11:04:032434browse

How to read and write files in java to avoid garbled characters

java读写文件避免乱码的方法:

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;
    }

InputStreamReader类是从字节流到字符流的桥接器:它使用指定的字符集读取字节并将它们解码为字符。 它使用的字符集可以通过名称指定,也可以明确指定,或者可以接受平台的默认字符集。

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();
        }
    }

OutputStreamWriter是从字符流到字节流的桥接:使用指定的字符集将写入其中的字符编码为字节。它使用的字符集可以通过名称指定,也可以明确指定,或者可以接受平台的默认字符集。

更多java知识请关注java基础教程栏目。

The above is the detailed content of How to read and write files in java to avoid garbled characters. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn