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);

   writer.write(fileContent +  "\r\n");

   writer.close();

  } catch (Exception e) {

   System.out.println("写文件内容操作出错");

   e.printStackTrace();

  }

}