json对象互转

public static void main(String[] args) {
    List brandList = new ArrayList();
    Brand b = new Brand();
    b.setBrandId(1);
    b.setBrandName("测试");
    b.setStatus(false);
    Brand b1 = new Brand();
    b1.setBrandId(2);
    b1.setBrandName("测试2");
    b1.setStatus(false);
    Brand b2 = new Brand();
    b2.setBrandId(3);
    b2.setBrandName("测试3");
    b2.setStatus(false);

    brandList.add(b1);
    brandList.add(b2);
    brandList.add(b);

    /**
     *
     *实体转为json
     */
    String s = JSONObject.toJSONString(b);
    System.out.println(s);

    /**
     *
     *json转为实体
     */
    Brand brand = JSONObject.parseObject(s, Brand.class);
    System.out.println(brand + "==============");


    /**
     *
     *list集合转json
     */
    String s1 = JSON.toJSONString(brandList);
    System.out.println(s1 + "999999");
    //json 转list
    List brands = JSONObject.parseArray(s1, Brand.class);
    System.out.println(brands);


}


/**
 * List<实体>转为list