Some configurations in projects need to be encrypted, such as database passwords. Jasypt can implement encryption and decryption functionality.

1. Add Dependency

<dependency>
    <groupId>com.github.ulisesbocchio</groupId>
    <artifactId>jasypt-spring-boot-starter</artifactId>
    <version>3.0.5</version>
</dependency>

2. Configuration File

Before Encryption

spring:
  datasource:
    password: 123456

After Encryption

spring:
  datasource:
    password: ENC(slZULLmbudl1M6/43iq6y8100XQ4DlqnxtToLxtUODxqlsCm02M2ujbx6ayy4j92)

3. Encryption

Here’s an example using AES256

// Specify algorithm
AES256TextEncryptor textEncryptor = new AES256TextEncryptor();
// Specify secret key
textEncryptor.setPassword("test");
// Generate encrypted data
String encrypt = textEncryptor.encrypt("123456");
System.out.println(encrypt);
// slZULLmbudl1M6/43iq6y8100XQ4DlqnxtToLxtUODxqlsCm02M2ujbx6ayy4j92

4. Decryption

4.1 IDE Configuration

Add the following to VM options:

-Djasypt.encryptor.password=test

4.2 Running

java -jar -Djasypt.encryptor.password=test xxx.jar

4.3 Test Classes

For classes that need unit testing, just add the @Import(EnableEncryptableProperties.class) annotation to the class