但还要返回json数据 提示 验证失败

package com.thinkgem.jeesite.common.aspect;

import com.thinkgem.jeesite.common.base.ResultApp;
import com.thinkgem.jeesite.common.service.ApiService;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.context.request.ServletWebRequest;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
* app身份验证
* Created by Hamming on 2016/12/23.
*/
@Aspect
@Component
public class AccessTokenAspect {

@Autowired
private ApiService apiService;

@Before("@annotation(com.thinkgem.jeesite.common.annotation.AccessToken)")
@ResponseBody
public void doAccessCheck()throws Throwable {
    HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
    ServletWebRequest servletWebRequest = new ServletWebRequest(request);
    HttpServletResponse response = servletWebRequest.getResponse();
    String id = request.getParameter("id");
    String token = request.getParameter("token");

    boolean verify = apiService.verifyToken(id,token);
    if(!verify){
        //页面如何跳转 返回json
    }
}

}
自定义了注解 但是 身份严重失败 怎么跳转页面 返回json数据 不执行后面的方法呢？？？

问题已经解决
代码如下

/**
 * app身份验证
 * Created by Hamming on 2016/12/23.
 */
@Aspect
@Component
public class AccessTokenAspect {

    @Autowired
    private ApiService apiService;

    @Before("@annotation(com.thinkgem.jeesite.common.annotation.AccessToken)")
    @ResponseBody
    public Object doAccessCheck()throws Throwable {
        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();

        String id = request.getParameter("id");
        String token = request.getParameter("token");

        boolean verify = apiService.verifyToken(id,token);
        if(verify){
            return true;
        }else {
            ServletRequestAttributes res = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            if (res == null) {
                throw new IllegalStateException("当前线程中不存在 Respnose上下文");
            }
            HttpServletResponse response = res.getResponse();
            response.setCharacterEncoding("UTF-8");
            response.setContentType("application/json; charset=utf-8");

            Map re = new HashMap<>();
            re.put("result",4);
            re.put("msg","token失效");
            String json = JSON.toJSONString(re);

            response.getWriter().write(json);
            return false;
        }
    }
}

/**
 * 权限注解
 * Created by Hamming on 2016/12/26.
 */
@Target(ElementType.METHOD)//这个注解是应用在方法上
@Retention(RetentionPolicy.RUNTIME)
public @interface AccessToken {
/*    String userId();
    String token();*/
}