jfinal weixin拦截器对分享朋友圈的统一处理

微信服务号应用每一个页面均可以点击右上角分享本页面给朋友，如须要统一处理限定分享结果，能够经过分享拦截器实现。

public class ShareInterceptor implements Interceptor {
	private static Logger log = Logger
			.getLogger(ShareInterceptor.class);

	@Override
	public void intercept(Invocation ai) {
		ApiConfig ac = new ApiConfig();
		ac.setToken(PropKit.get("token"));
		ac.setAppId(PropKit.get("appId"));
		ac.setAppSecret(PropKit.get("appSecret"));
		ApiConfigKit.setThreadLocalApiConfig(ac);
		Controller contro = (Controller) ai.getController();
		HttpServletRequest request = contro.getRequest();
		String url = PropKit.get("weixin_uri")+ai.getActionKey()+"?"+request.getQueryString();
		JsTicket jsapi_ticket = JsTicketApi.getTicket(JsApiType.jsapi);
		String ticket = jsapi_ticket.getTicket();
		Map<String, String> signMap = WxUtil.sign(ticket,url);
		signMap.put("appId", PropKit.get("appId"));
		request.setAttribute("signMap", signMap);	
		ai.invoke();
	}	
}

若是须要全局拦截，就在configInterceptor时设置，若是只对单个action拦截，就在action前@Before便可；同理能够处理其余微信api支持的操做。