我正在使用Spring Boot 1.2.3,我想了解是否可以在将属性值注入使用@ConfigurationProperties注释的bean之前对其进行解密.

假设我在application.properties文件中有以下内容：

appprops.encryptedProperty = ENC(ENCRYPTEDVALUE)

和这样的示例应用程序：

package aaa.bb.ccc.propertyresearch;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;

import javax.annotation.PostConstruct;

@SpringBootApplication
@EnableConfigurationProperties(PropertyResearchApplication.ApplicationProperties.class)
public class PropertyResearchApplication {

    public static void main(String[] args) {
        SpringApplication.run(PropertyResearchApplication.class,args);
    }

    @ConfigurationProperties("appprops")
    public static class ApplicationProperties {
        private String encryptedProperty;

        @PostConstruct
        public void postConstruct() throws Exception {
            System.out.println("ApplicationProperties --> appprops.encryptedProperty = " + encryptedProperty);
        }

        public String getEncryptedProperty() {
            return encryptedProperty;
        }

        public void setEncryptedProperty(String encryptedProperty) {
            this.encryptedProperty = encryptedProperty;
        }
    }
}

在过去,我使用自定义的PropertySourcesPlaceholderConfigurer来实现此目的,但它需要设置如下结构：

@Component
public class ApplicationProperties {
    @Value("${appprops.enrcyptedProperty}")
    private String encryptedProperty;

    @PostConstruct
    public void postConstruct() throws Exception {
        System.out.println("ApplicationProperties --> appprops.encryptedProperty = " + encryptedProperty);
    }

    public String getEncryptedProperty() {
        return encryptedProperty;
    }
}

虽然这本身并不坏,但我想看看我是否可以利用加密属性的@ConfigurationProperties的细节.