JAVA读取文件，避免中文乱码

1、JAVA读取文件，避免中文乱码。

/**
  * 读取文件内容
  *
  * @paramfilePathAndName
  *            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()){
    InputStreamReaderread = new InputStreamReader(new FileInputStream(f),"UTF-8");
    BufferedReaderreader=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, StringfileContent) {
  try {
   File f = newFile(filePathAndName);
   if (!f.exists()) {
    f.createNewFile();
   }
   OutputStreamWriterwrite = new OutputStreamWriter(new FileOutputStream(f),"UTF-8");
   BufferedWriterwriter=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(newFileWriter(filePathAndName)));

2、PrintWriter writer = new PrintWriter(newFileWriter(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。