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最近在做HTML静态生成，需要从硬盘上把模版文件的内容读出来。然后，替换相关标签写到指定的文件中。无论是读写，都遇到了中文乱码问题。试过多种方法，发现下面一种可以避免中文乱码。（无论读取还是写入一定要进行编码转换。） 1、JAVA读取文件，避免中文乱码。 /** * 读取文件内容 * * @param filePathAndName * String 如 c:\\1.txt 绝对路径 * @return boolean */ public static String readFile(String filePathAndName) { String fileContent = ""; try { File f = new File(filePathAndName); 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、JAVA写入文件，避免中文乱码。 public static void writeFile(String filePathAndName, String fileContent) { try { File f = new File(filePathAndName); if (!f.exists()) { f.createNewFile(); } OutputStreamWriter write = new OutputStreamWriter(new FileOutputStream(f),"UTF-8"); BufferedWriter writer=new BufferedWriter(write); //PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(filePathAndName))); //PrintWriter writer = new PrintWriter(new FileWriter(filePathAndName)); writer.write(fileContent); writer.close(); } catch (Exception e) { System.out.println("写文件内容操作出错"); e.printStackTrace(); } } 我试过写入的时候用 1、PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(filePathAndName))); 2、PrintWriter writer = new PrintWriter(new FileWriter(filePathAndName)); 都不行。 以上代码经过运行可以避免中文乱码，关键是要编码转换。

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