161012、JAVA读写文件，如何避免中文乱码

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();
}
}