spring 对于注解类的扫描

最新推荐文章于 2023-09-30 08:00:00 发布

原创最新推荐文章于 2023-09-30 08:00:00 发布 · 483 阅读

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#spring #java #后端

本文介绍了如何在Spring Boot应用中使用JobConfigParser类解析带有ElasticJobConfig注解的配置，包括获取配置类、处理增强类和验证job名称的步骤，适用于分布式任务调度的配置管理。

@Component
@Configuration
public class JobConfigParser implements ApplicationContextAware {

    public void setApplicationContext(ApplicationContext ctx) throws BeansException {
        this.environment = ctx.getEnvironment();
        Map<String, Object> beanMap = ctx.getBeansWithAnnotation(ElasticJobConfig.class);
        Iterator var3 = beanMap.values().iterator();

        while(var3.hasNext()) {
            Object confBean = var3.next();
            Class<?> clz = confBean.getClass();
            this.getJobTypeClass(clz);
            String jobTypeName = this.jobTypeClass.getSimpleName();
            ElasticJobConfig conf = this.findElasticJobConfigAnnot(clz);
            String jobClass = clz.getName();
            if (jobClass.contains("$$EnhancerBySpringCGLIB")) {
                jobClass = jobClass.substring(0, jobClass.indexOf("$$EnhancerBySpringCGLIB"));
            }

            String[] jobNames = conf.name();
            if (jobNames == null) {
                log.error("ElasticJobConf job name error. jobClass:{}", jobClass);
                throw new IllegalArgumentException("ElasticJobConf job name error. jobClass:" + jobClass);
            }
            }
            }
}

public ElasticJobConfig findElasticJobConfigAnnot(Class<?> clz) {
        ElasticJobConfig elasticJobConfig = (ElasticJobConfig)clz.getAnnotation(ElasticJobConfig.class);
        if (elasticJobConfig == null && clz.getSimpleName().contains("SpringCGLIB")) {
            Class tmpClass = clz.getSuperclass();

            for(int i = 0; i < 3; tmpClass = tmpClass.getSuperclass()) {
                elasticJobConfig = (ElasticJobConfig)tmpClass.getAnnotation(ElasticJobConfig.class);
                if (elasticJobConfig != null) {
                    return elasticJobConfig;
                }

                ++i;
            }
        }

        return elasticJobConfig;
    }