摘要:
String path="D:\\新建文件夹\\2.png"; File file=new File(path); System.out.println(file.exists()); String path1="D:/新建文件夹/2.png"; File file1=new File(path); 阅读全文
摘要:
java SASL_SSL 帐号密码 方式访问 kafka Producer Java Sample java生产者: Properties props = new Properties();props.put("bootstrap.servers", "*******:9092,*******:9 阅读全文