引入pom

<!-- jasypt 配置文件敏感信息加解密 -->
	<dependency>
		<groupId>com.github.ulisesbocchio</groupId>
		<artifactId>jasypt-spring-boot-starter</artifactId>
		<version>3.0.3</version>
	</dependency>

数据加密

 public static String encryptWithSHA512(String plainText, String factor) {
        // 1. 创建加解密工具实例
        PooledPBEStringEncryptor encryptor = new PooledPBEStringEncryptor();
        // 2. 加解密配置
        SimpleStringPBEConfig config = new SimpleStringPBEConfig();
        config.setPassword(factor);
        config.setAlgorithm("PBEWITHHMACSHA512ANDAES_256");
        // 为减少配置文件的书写，以下都是 Jasyp 3.x 版本，配置文件默认配置
        config.setKeyObtentionIterations( "1000");
        config.setPoolSize("1");
        config.setProviderName("SunJCE");
        config.setSaltGeneratorClassName("org.jasypt.salt.RandomSaltGenerator");
        config.setIvGeneratorClassName("org.jasypt.iv.RandomIvGenerator");
        config.setStringOutputType("base64");
        encryptor.setConfig(config);
        // 3. 加密
        return encryptor.encrypt(plainText);
    }

Nacos中配置

auth=ENC(gaAuVVD5qwYnI3/AKHGczgjxmrae9AzYE7kEsIJ7oksX4R+IwQp+6l32LmDBcIXi)

解密password配置

idea配置

-Djasypt.encryptor.password=123456

编辑application配置

配置vm参数

配置文件中配置

jar启动配置方式

Java -jar xxx.jar -Djasypt.encryptor.password=123456

验证

验证代码

@Slf4j
@Api("测试")
@RestController
@RequestMapping("test")
public class TestController {

    @Value("${auth}")
    private String auth;
    @GetMapping("/auth")
    public String auth() {
        return auth;
    }
}

验证返回结果

配置说明

2021-07-08 16:00:01.918  INFO 48940 --- [           main] c.u.j.c.StringEncryptorBuilder           : Encryptor config not found for property jasypt.encryptor.algorithm, using default value: PBEWITHHMACSHA512ANDAES_256
2021-07-08 16:00:01.918  INFO 48940 --- [           main] c.u.j.c.StringEncryptorBuilder           : Encryptor config not found for property jasypt.encryptor.key-obtention-iterations, using default value: 1000
2021-07-08 16:00:01.919  INFO 48940 --- [           main] c.u.j.c.StringEncryptorBuilder           : Encryptor config not found for property jasypt.encryptor.pool-size, using default value: 1
2021-07-08 16:00:01.920  INFO 48940 --- [           main] c.u.j.c.StringEncryptorBuilder           : Encryptor config not found for property jasypt.encryptor.provider-name, using default value: null
2021-07-08 16:00:01.920  INFO 48940 --- [           main] c.u.j.c.StringEncryptorBuilder           : Encryptor config not found for property jasypt.encryptor.provider-class-name, using default value: null
2021-07-08 16:00:01.921  INFO 48940 --- [           main] c.u.j.c.StringEncryptorBuilder           : Encryptor config not found for property jasypt.encryptor.salt-generator-classname, using default value: org.jasypt.salt.RandomSaltGenerator
2021-07-08 16:00:01.922  INFO 48940 --- [           main] c.u.j.c.StringEncryptorBuilder           : Encryptor config not found for property jasypt.encryptor.iv-generator-classname, using default value: org.jasypt.iv.RandomIvGenerator

可在配置文件中自定义修改

• 默认加密算法 jasypt.encryptor.algorithm, using default value: PBEWITHHMACSHA512ANDAES_256
• 默认的迭代次数 jasypt.encryptor.key-obtention-iterations, using default value: 1000
• 默认池大小jasypt.encryptor.pool-size, using default value: 1
• 默认生成盐的类：org.jasypt.salt.RandomSaltGenerator
• 默认IV生成器类：org.jasypt.iv.RandomIvGenerator
• 默认IV生成器类：org.jasypt.iv.RandomIvGenerator

异常

异常信息

Exception in thread "main" org.jasypt.exceptions.EncryptionOperationNotPossibleException: Encryption raised an exception. A possible cause is you are using strong encryption algorithms and you have not installed the Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files in this Java Virtual Machine
	at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.handleInvalidKeyException(StandardPBEByteEncryptor.java:1207)
	at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.encrypt(StandardPBEByteEncryptor.java:996)
	at org.jasypt.encryption.pbe.StandardPBEStringEncryptor.encrypt(StandardPBEStringEncryptor.java:655)
	at org.jasypt.encryption.pbe.PooledPBEStringEncryptor.encrypt(PooledPBEStringEncryptor.java:465)
	at com.zuoja.mall.farm.JasypUtil.encryptWithSHA512(JasypUtil.java:78)
	at com.zuoja.mall.farm.JasypUtil.main(JasypUtil.java:112)

异常原因

因为某些国家的进口管制限制，JDK默认对加解密有一定的限制，默认不能使用256长度秘钥加解密。

解决方案

解决方法就下载官方JCE无限制强度加密策略文件，将Java\jdk1.8.0_77\jre\lib\security\路径下的local_policy.jar和US_export_policy.jar覆盖即可。

官方网站提供了JCE无限制权限策略文件的下载：

• JDK6的下载地址
• JDK7的下载地址
• JDK8的下载地址

操作步骤

• 下载
  
  

• 替换
  找到java 安装目录jre/lib/security替换local_policy.jar和US_export_policy.jar
  

如果还报错就把jdk下面jre/lib/security替换local_policy.jar和US_export_policy.jar也替换