SpringBank 开发日志 一种简单的拦截器设计实现

/**
* @author wangxin
* @contact 408657544@qq.com
* @date Jul 22, 2017
* @Description: 所有TransactionController的抽象父类，主要作用为以一种低耦合的方式调用Service
*/
public abstract class BaseController {
private final Logger log = LoggerFactory.getLogger(getClass());
@SuppressWarnings("rawtypes")
public Map callService(String service,Map request) {
Class<?> clazz;
try {
clazz = Class.forName("com.springbank.service.service." + service);
Method method = clazz.getMethod("execute", Map.class);
Service bean = (Service) ApplicationContextUtil.getApplicationContext().getBean(clazz);
//先执行拦截器栈
List<Interceptor> interceptorList = (List<Interceptor>) clazz.getMethod("getInterceptorList", null).invoke(bean, null);
for (Interceptor interceptor : interceptorList) {
interceptor.process();
}
//反射非静态方法，需要把第一个参数设置为对象
return (Map)method.invoke(bean, request);
} catch (ClassNotFoundException e) {
ExceptionHandler.throwExcep(ExpceptionMapping.SYSTEMERR, e);
} catch (NoSuchMethodException e) {
ExceptionHandler.throwExcep(ExpceptionMapping.SYSTEMERR, e);
} catch (SecurityException e) {
ExceptionHandler.throwExcep(ExpceptionMapping.SYSTEMERR, e);
} catch (IllegalAccessException e) {
ExceptionHandler.throwExcep(ExpceptionMapping.SYSTEMERR, e);
} catch (IllegalArgumentException e) {
ExceptionHandler.throwExcep(ExpceptionMapping.SYSTEMERR, e);
} catch (InvocationTargetException e) {
ExceptionHandler.throwExcep(ExpceptionMapping.SYSTEMERR, e);
}
return null;
}
}