我的项目中有两个PropertyPlaceholderConfigurer bean。
Bean A :(定义为XML)
<bean id="propertyConfigurer" class="org.jasypt.spring3.properties.EncryptablePropertyPlaceholderConfigurer">
<constructor-arg ref="configurationEncryptor" />
<property name="order" value="0" />
<property name="locations">
<list>
<value>classpath:/app-dev.properties</value>
<value>classpath:/common-dev.properties</value>
</list>
</property>
</bean>
Bean B :(定义为Java Config)
@Bean(name = "customPropertiesUtil")
public static CustomPropertiesUtil customPropertiesUtil(StandardPBEStringEncryptor configurationEncryptor) {
CustomPropertiesUtil customPropertiesUtil = new CustomPropertiesUtil ();
customPropertiesUtil.setSystemPropertiesModeName("SYSTEM_PROPERTIES_MODE_OVERRIDE");
customPropertiesUtil.setLocation(new ClassPathResource("mail-dev.properties"));
customPropertiesUtil.setOrder(1);
customPropertiesUtil.setIgnoreUnresolvablePlaceholders(false);
customPropertiesUtil.setStandardPBEStringEncryptor(configurationEncryptor);
return customPropertiesUtil;
}
bean configurationEncryptor在XML中定义为:
<bean id="configurationEncryptor" class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
<property name="config" ref="environmentVariablesConfiguration" />
</bean>
Bean B是在@Configuration类中创建的。 奇怪的是,如果我删除了Bean B中显示的参数注入,那么一切都会按预期进行。但是,我需要加密器来解析某些加密属性,并且它不是NULL的唯一方法是使用参数注入来注入它。 (请参阅Why is an @Autowired field within a @Configuration class null?)
我的问题是为什么将@Bean(Bean B)方法注入一个bean导致Bean A失败?