Java基础读取本地txt文件

public class TxtTest {

public static String txt2String(File file){
    StringBuilder result = new StringBuilder();
    try{
        BufferedReader br = new BufferedReader(new FileReader(file));//构造一个BufferedReader类来读取文件
        String s = null;
        while((s = br.readLine())!=null){//使用readLine方法，一次读一行
            result.append(System.lineSeparator()+s);
        }
        br.close();
    }catch(Exception e){
        e.printStackTrace();
    }
    return result.toString();
}

public static void main(String[] args){
    File file = new File("C:\\Users\\admin\\Desktop\\新建文本文档 (2).txt");
    System.out.println(txt2String(file));
}

}