代码:

public static void readTxt(String fileName)  {
        FileReader fr= null;
        BufferedReader br= null;
        try {
            String file = TableUtils.class.getResource("/"+fileName).getPath();
            fr = new FileReader(file);
            br = new BufferedReader(fr);
            String line="";
            String[] arrs=null;
            while ((line=br.readLine())!=null) {
             
                System.out.println(line);
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }finally {
            if (br!=null){
                try {
                    br.close();
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            if (fr!=null){
                try {
                    fr.close();
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
        }

测试:

1. 在resources目录下新建test.txt文件
   
   

2. 主函数

public static void main(String[] args) throws IOException {
        readTxt("test.txt");
    }

3. 结果
   

111
aaa
bbb
ccc

进程已结束,退出代码0