java读写文件（可当工具类保存。解决乱码）

//读文件
public static String ReadFile(String path) {
File file = new File(path);
BufferedReader reader = null;
String laststr = "";
try {
reader = new BufferedReader(new FileReader(file));
String tempString = null;
while ((tempString = reader.readLine()) != null) {
laststr += tempString;
}
reader.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e1) {
}
}
}
return laststr;
}

//写文件
public static void writeFile(String path,String fileContent) {
try {
File filename=new File(path);
OutputStreamWriter write = new OutputStreamWriter(
new FileOutputStream(filename), "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();
}
}

java读写文件（可当工具类保存。解决乱码）