个性化插件定义

最新推荐文章于 2020-04-30 09:30:54 发布

原创最新推荐文章于 2020-04-30 09:30:54 发布 · 208 阅读

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CC 4.0 BY-SA版权

本文深入探讨了Spring框架中BizPlugin注解的使用方法及其实现原理，详细介绍了如何通过BizPlugin注解实现业务插件的注册与初始化，以及如何在运行时获取这些插件实例。

@Target({ TYPE })
@Retention(RetentionPolicy.RUNTIME)
public @interface ByPlugin {
    public String type();
    public String bype();
    
}

private void initPlugin(Class<?> pluginClass, String beanName) {
    BizPlugin plugin = pluginClass.getAnnotation(BizPlugin.class);
    String bype= plugin.bype();
    String type= plugin.type();
    String[] bypeArray = bype.split(",");
    for (String biz : bypeArray) {
       String beanInstance = moduleTemplatePlugins.get(biz + "$$" + type);
        if (StringUtil.isBlank(beanInstance)) {
           moduleTemplatePlugins.put(biz + "$$" + type, beanName);
        }
    }
}

@Override
public void afterPropertiesSet() throws Exception {
    String[] beans = applicationContext.getBeanDefinitionNames();
    for (String beanName : beans) {
        if (beanName.equals("baseDAO")) {
            continue;
        }
        try {
            Object obj = applicationContext.getBean(beanName);
            Class<?> clazz = obj.getClass();
            if (clazz.getName().contains("EnhancerByCGLIB")) {
                Class<?> tmpClazz = clazz.getSuperclass();
                if (tmpClazz.isAnnotationPresent(ByPlugin .class)) {
                    initPlugin(tmpClazz, beanName);
                }
                continue;
            }
            if (clazz.isAnnotationPresent(BizPlugin.class)) {
                initPlugin(clazz, beanName);
            }
        } catch (Exception e) {
           TODO
        }
    }

}