SpringBoot配置文件数据库账号密码加密

出于安全考虑，明文的数据库账号密码存在安全隐患，需要对其进行加密

这里采用jasypt进行处理

1. 引入jasypt依赖

        <dependency>
            <groupId>com.github.ulisesbocchio</groupId>
            <artifactId>jasypt-spring-boot-starter</artifactId>
            <version>3.0.3</version>
        </dependency>

2. 配置文件中添加password信息

jasypt:
    encryptor:
        password: silen

3. 编写测试代码，得到加密结果

import org.jasypt.encryption.StringEncryptor;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest
public class JasyptApplicationTests {
    @Autowired
    private StringEncryptor encryptor;

    @Test
    public void testEncrypt() {
        System.out.println(encryptor.encrypt("root")); // iozDcujQo575YtsZ1giHl/zRZM5Si6arM8EA4wMOogG2x8L4xZIQsf7dEUSG8b9A
        System.out.println("解密："+encryptor.decrypt("iozDcujQo575YtsZ1giHl/zRZM5Si6arM8EA4wMOogG2x8L4xZIQsf7dEUSG8b9A"));
    }
}

4. 将对应的数据填入配置文件中

username: ENC(iozDcujQo575YtsZ1giHl/zRZM5Si6arM8EA4wMOogG2x8L4xZIQsf7dEUSG8b9A)
password: ENC(iozDcujQo575YtsZ1giHl/zRZM5Si6arM8EA4wMOogG2x8L4xZIQsf7dEUSG8b9A)

5. 不想使用默认的ENC(),可自定义设置，配置文件添加代码

jasypt:
    encryptor:
        password: silen
        property:
            prefix: silen(
            suffix: )

#对应加密位置则为
username: silen(iozDcujQo575YtsZ1giHl/zRZM5Si6arM8EA4wMOogG2x8L4xZIQsf7dEUSG8b9A)
password: silen(iozDcujQo575YtsZ1giHl/zRZM5Si6arM8EA4wMOogG2x8L4xZIQsf7dEUSG8b9A)

6. password放在配置文件中依然存在被破解的风险，可以考虑在执行jar文件的时候将该参数添加进去，执行命令如下

 java -jar admin.jar --jasypt.encryptor.password=silen

7. 若在执行3的测试代码时出现报错信息

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

解决方案：

去到官网下载了两个和安全相关的包之后问题解决。

下载地址：https://www.oracle.com/java/technologies/javase-jce8-downloads.html

下载之后放置到JAVA_HOME\jdk1.8.0_72\jre\lib\security目录底下，重新运行加解密代码问题解决。