解决使用jasypt加密配置报错:DecryptionException: Unable to decrypt

使用jasypt加密配置的时候,出现了这个异常com.ulisesbocchio.jasyptspringboot.exception.DecryptionException: Unable to decrypt

具体完整的错误信息如下:

Caused by: com.ulisesbocchio.jasyptspringboot.exception.DecryptionException: Unable to decrypt: ENC(/AL9nJENCYCh9Pfzdf2xLPsqOZ6HwNgQ3AnMybFAMeOM5GphZlOK6PxzozwtCm+Q). Decryption of Properties failed,  make sure encryption/decryption passwords match
    at com.ulisesbocchio.jasyptspringboot.resolver.DefaultPropertyResolver.lambda$resolvePropertyValue$0(DefaultPropertyResolver.java:46) ~[jasypt-spring-boot-3.0.3.jar:na]
    at java.util.Optional.map(Optional.java:215) ~[na:1.8.0_151]
    at com.ulisesbocchio.jasyptspringboot.resolver.DefaultPropertyResolver.resolvePropertyValue(DefaultPropertyResolver.java:40) ~[jasypt-spring-boot-3.0.3.jar:na]
    at com.ulisesbocchio.jasyptspringboot.resolver.DefaultLazyPropertyResolver.resolvePropertyValue(DefaultLazyPropertyResolver.java:50) ~[jasypt-spring-boot-3.0.3.jar:na]
    at com.ulisesbocchio.jasyptspringboot.EncryptablePropertySource.getProperty(EncryptablePropertySource.java:20) ~[jasypt-spring-boot-3.0.3.jar:na]
    at com.ulisesbocchio.jasyptspringboot.caching.CachingDelegateEncryptablePropertySource.getProperty(CachingDelegateEncryptablePropertySource.java:41) ~[jasypt-spring-boot-3.0.3.jar:na]
    at com.ulisesbocchio.jasyptspringboot.wrapper.EncryptableMapPropertySourceWrapper.getProperty(EncryptableMapPropertySourceWrapper.java:31) ~[jasypt-spring-boot-3.0.3.jar:na]
    at org.springframework.core.env.PropertySourcesPropertyResolver.getProperty(PropertySourcesPropertyResolver.java:85) ~[spring-core-5.3.8.jar:5.3.8]
    at org.springframework.core.env.PropertySourcesPropertyResolver.getProperty(PropertySourcesPropertyResolver.java:62) ~[spring-core-5.3.8.jar:5.3.8]
    at org.springframework.core.env.AbstractEnvironment.getProperty(AbstractEnvironment.java:588) ~[spring-core-5.3.8.jar:5.3.8]
    at org.springframework.context.support.PropertySourcesPlaceholderConfigurer$1.getProperty(PropertySourcesPlaceholderConfigurer.java:137) ~[spring-context-5.3.8.jar:5.3.8]
    at org.springframework.context.support.PropertySourcesPlaceholderConfigurer$1.getProperty(PropertySourcesPlaceholderConfigurer.java:133) ~[spring-context-5.3.8.jar:5.3.8]
    at org.springframework.core.env.PropertySourcesPropertyResolver.getProperty(PropertySourcesPropertyResolver.java:85) ~[spring-core-5.3.8.jar:5.3.8]
    at org.springframework.core.env.PropertySourcesPropertyResolver.getPropertyAsRawString(PropertySourcesPropertyResolver.java:74) ~[spring-core-5.3.8.jar:5.3.8]
    at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:159) ~[spring-core-5.3.8.jar:5.3.8]
    at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:126) ~[spring-core-5.3.8.jar:5.3.8]
    at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:239) ~[spring-core-5.3.8.jar:5.3.8]
    at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:210) ~[spring-core-5.3.8.jar:5.3.8]
    at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.lambda$processProperties$0(PropertySourcesPlaceholderConfigurer.java:175) ~[spring-context-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:936) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1321) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.8.jar:5.3.8]
    ... 69 common frames omitted
Caused by: org.jasypt.exceptions.EncryptionOperationNotPossibleException: null
    at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.decrypt(StandardPBEByteEncryptor.java:1165) ~[jasypt-1.9.3.jar:na]
    at org.jasypt.encryption.pbe.StandardPBEStringEncryptor.decrypt(StandardPBEStringEncryptor.java:738) ~[jasypt-1.9.3.jar:na]
    at org.jasypt.encryption.pbe.PooledPBEStringEncryptor.decrypt(PooledPBEStringEncryptor.java:511) ~[jasypt-1.9.3.jar:na]
    at com.ulisesbocchio.jasyptspringboot.encryptor.DefaultLazyEncryptor.decrypt(DefaultLazyEncryptor.java:57) ~[jasypt-spring-boot-3.0.3.jar:na]
    at com.ulisesbocchio.jasyptspringboot.resolver.DefaultPropertyResolver.lambda$resolvePropertyValue$0(DefaultPropertyResolver.java:44) ~[jasypt-spring-boot-3.0.3.jar:na]
    ... 94 common frames omitted

直接根据错误信息的描述来判断,就是解密失败了。

下面整理一下可能产生解密失败的几种可能:

第一种:推测解密失败的原因是加密和解密使用的密钥不一致,也就是jasypt.encryptor.password的配置和使用插件时候的参数传的不同。

第二种:没有安装不限长度的JCE版本(Unlimited Strength Java Cryptography Extension)。因为DD以前在用Spring Cloud Config的时候已经装过了,所以在写之前这个案例的时候没有提到这点,应该一些还没有接触Spring Cloud的读者通常都是这个原因导致。

我们可以从Oracle的官方网站中下载你所用Java版本对应的JCE安装包,比如:JCE8下载地址。它是一个压缩包,解压后可以看到下面三个文件:

README.txt
local_policy.jar
US_export_policy.jar

我们需要将local_policy.jarUS_export_policy.jar两个文件复制到$JAVA_HOME/jre/lib/security目录下,覆盖原来的默认内容,这样加密解密的准备工作就完成了。

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