How to detect whether a file is damaged using Apache Tika

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

When uploading files to a server and parsing them, you often need to determine whether the files are damaged. We can use tika to detect whether the file is damaged

Maven is introduced as follows:

<dependency>
  <groupId>org.apache.tika</groupId>
  <artifactId>tika-app</artifactId>
  <version>1.18</version>
</dependency>
<dependency>
  <groupId>xerces</groupId>
  <artifactId>xercesImpl</artifactId>
  <version>2.11.0</version>
</dependency>

If there is a conflict in the jar packages, you can introduce them as follows:

<dependency>
  <groupId>org.apache.tika</groupId>
  <artifactId>tika-core</artifactId>
  <version>1.18</version>
</dependency>
<dependency>
  <groupId>org.apache.tika</groupId>
  <artifactId>tika-parsers</artifactId>
  <version>1.18</version>
</dependency>
<dependency>
  <groupId>xerces</groupId>
  <artifactId>xercesImpl</artifactId>
  <version>2.11.0</version>
</dependency>

Use tika to detect whether the file is damaged:

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

When a document cannot be parsed, it indicates that the document 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 if the file is corrupted*
   * @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:

Test data---read text content

Summarize

The above is the method of Apache Tika to detect whether the file is damaged. I hope it will be helpful to you. If you have any questions, please leave me a message and I will reply to you in time. I would also like to thank everyone for their support of the 123WORDPRESS.COM website!
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