Java實現一行一行讀取文件內容（進行編碼處理）

    
// 讀取文件內容
public String readFile(){
       String path = "";
        File file = new File(path);
        StringBuilder result = new StringBuilder();
        try{
            BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8"));//構造一個BufferedReader類來讀取文件

            String s = null;
            while((s = br.readLine())!=null){//使用readLine方法，一次讀一行
                result.append( System.lineSeparator() + s);
            }
            br.close();
        }catch(Exception e){
            e.printStackTrace();
        }
        return result.toString();
 }