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This article mainly introduces apache tika how to detect whether the file is damaged, the article is very detailed, has a certain reference value, interested friends must read it!

Apache Tika is a library for file type detection and extraction of file contents from various formats.

When uploading a file to the server and parsing the file, it is often necessary to determine whether the file is damaged. We can use tika to detect file corruption

Maven introduces the following:

Org.apache.tika tika-app 1.18 xerces xercesImpl 2.11.0

If the jar package conflicts, you can introduce the following:

Org.apache.tika tika-core 1.18 org.apache.tika tika-parsers 1.18 xerces xercesImpl 2.11.0

Use tika to detect file corruption:

If reading from the input stream fails, the parse method throws an IOException exception, the document obtained from the stream cannot be parsed and a TikaException exception is thrown, and if the handler cannot handle the event, a SAXException exception is thrown

When a document cannot be parsed, it is corrupted

Execution process:

Public static void main (String [] args) {try {/ / Assume sample.txt is in your current directory File file = new File ("D:\\ test .txt"); boolean result = isParseFile (file);} catch (Exception e) {e.printStackTrace () }} / * verify that the file is corrupt * * @ param file file * @ return true/false * @ throws Exception * / private static boolean isParseFile (File file) throws Exception {try {Tika tika = new Tika (); String filecontent = tika.parseToString (file); System.out.println (filecontent); return true;} catch (TikaException e) {return false;}}

Output result:

Test data-read text content

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