user-defined-responsebody

Spring boot/MVC Json返回参数过滤

配置

---XML---

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
	<property name="customReturnValueHandlers">
		<list>
			<bean class="com.lwp.configuration.ResponseBodyJsonHandler" />
		</list>
	</property>
</bean>

---JavaConfig---

@Autowired
private RequestMappingHandlerAdapter requestMappingHandlerAdapter;

@Autowired
ResponseBodyJsonHandler responseBodyJsonHandler;

@PostConstruct
public void init() {
	final List<HandlerMethodReturnValueHandler> originalHandlers = new ArrayList<HandlerMethodReturnValueHandler>(
			requestMappingHandlerAdapter.getReturnValueHandlers());
	final int deferredPos = obtainValueHandlerPosition(originalHandlers,
			DeferredResultMethodReturnValueHandler.class);
	originalHandlers.add(deferredPos + 1, responseBodyJsonHandler);
	//添加自己的ReturnValueHandler
	requestMappingHandlerAdapter.setReturnValueHandlers(originalHandlers);
}

private int obtainValueHandlerPosition(final List<HandlerMethodReturnValueHandler> originalHandlers,
		Class<?> handlerClass) {
	for (int i = 0; i < originalHandlers.size(); i++) {
		final HandlerMethodReturnValueHandler valueHandler = originalHandlers.get(i);
		if (handlerClass.isAssignableFrom(valueHandler.getClass())) {
			return i;
		}
	}
	return -1;
}

使用(支持点语法)

@ResponseBodyJson(type=User.class,excludes= {"id","userInfo.number","cardList.cardNo"})

@RequestMapping("/filter")

public User filter() {

	return new User();

}