spring:
  servlet:
    multipart:
      max-file-size: 10MB # 文件大小限制
      max-request-size: 100MB # 請(qǐng)求大小限制
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai
    username: root
    password: 123456

<dependency>
    <groupId>com.github.ulisesbocchio</groupId>
    <artifactId>jasypt-spring-boot-starter</artifactId>
    <version>2.1.2</version>
</dependency>

# 如果密文加鹽，需要配置鹽值
jasypt:
  encryptor:
    password: ueiej@8e8r

password: ENC(UBHpSHxjL2F8ZiNTJUciZw==)

public class DecryptEnvironmentPostProcessor implements EnvironmentPostProcessor {
    @Override
    public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) {
        Properties props = new Properties();  // 臨時(shí)存儲(chǔ)需要替換的配置
        // 假設(shè)加密密碼前綴為 "ENC("，后綴為 ")"
        MutablePropertySources propertySources = environment.getPropertySources();
        for (PropertySource<?> propertySource : propertySources) {
            if (propertySource instanceof EnumerablePropertySource) {
                EnumerablePropertySource<?> enumerablePropertySource = (EnumerablePropertySource<?>) propertySource;
                String[] propertyNames = enumerablePropertySource.getPropertyNames();
                // 遍歷所有配置key:value
                for (String propertyName : propertyNames) {
                    String propertyVal = environment.getProperty(propertyName);
                    // 根據(jù)自己寫(xiě)的規(guī)則來(lái)解析那些配置是需要解密的
                    if (propertyVal != null && propertyVal.startsWith("ENC(") && propertyVal.endsWith(")")) {
                        // 解析得到加密的數(shù)據(jù)
                        String encryptedValue = propertyVal.substring(4, propertyVal.length() - 1);
                        // 調(diào)用自定義工具類(lèi)解密
                        String decryptedValue = AESUtil.decryptEcbMode(encryptedValue);
                        // 保存需要替換的配置
                        props.put(propertyName, decryptedValue);
                    }
                }
            }
        }
        // 添加解密后的屬性到環(huán)境中
        if (!props.isEmpty()) {
            PropertiesPropertySource pps = new PropertiesPropertySource("decryptedProperties", props);
            environment.getPropertySources().addFirst(pps);
        }
    }
}

org.springframework.boot.env.EnvironmentPostProcessor=\  
your.package.DecryptEnvironmentPostProcessor

spring:  
  datasource:  
    password: ENC(你的加密密碼)

spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai
    username: root
    password: ENC(UBHpSHxjL2F8ZiNTJUciZw==)