How to make Spring automatically manage and inject dependencies into rule classes defined via annotations (e.g., Easy Rules' @Rule)? Tried multiple approaches, but injection always results in null. #434
Description
@component
@rule(name = "ConnectorInfoNonNullCheckRule", description = "联系人校验（依赖前序规则）", priority = 3)
public class ConnectorInfoNonNullCheckRule {
@resource
private BatchCreateService batchCreateActivityService;
@Condition
public boolean shouldCheck(Facts facts) Boolean passed) {
}
@Action
public void validate(Facts facts) {
}
}
@bean
public Rules rules() throws Exception {
Rules rules = new Rules();
// 扫描带有 @Rule 注解的类
ClassPathScanningCandidateComponentProvider scanner =
new ClassPathScanningCandidateComponentProvider(false);
scanner.addIncludeFilter(new AnnotationTypeFilter(Rule.class));
Set<BeanDefinition> beanDefinitions = scanner.findCandidateComponents("cn.com.autohome.tuan.easyrules");
// 动态注册所有规则
for (BeanDefinition beanDefinition : beanDefinitions) {
Class<?> ruleClass = Class.forName(beanDefinition.getBeanClassName());
rules.register(ruleClass.getDeclaredConstructor().newInstance());
}
return rules;
}