How to write a probeContentType() and Usage?

weixin_34391854

于 2016-04-14 12:05:00 发布

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文章标签： java

原文链接：http://www.cnblogs.com/sansna/p/5390550.html

本文介绍了一个基于Java的文件类型探测器实现方法。通过继承`FileTypeDetector`抽象类并覆盖`probeContentType`方法，可以创建自定义的文件类型探测器。示例代码展示了如何在新类`MyDetector`中实现这一功能。

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Files.probeContentType() is an instance of FileTypeDetector class's abstract method String FileTypeDetector.probeContentType(), it's an extension based detector. So extend it in a new class or even anonyinter class (cannot do that because FileTypeDetector is an abstract class) might work.

1 public class MyDetector extends java.nio.file.spi.FileTypeDetector{
2     public String probeContentType(Path path) throws IOException{
3         return SOMESTRING;
4     }
5 }

1 //Call the detector
2 String type = MyDetector.probeContentType(path);

转载于:https://www.cnblogs.com/sansna/p/5390550.html