redis内存数据库-----https://blog.csdn.net/m0_37939214/article/details/82628848+https://blog.csdn.net/suo082407128/article/details/86230914
redisTemplate.opsforList().range(String key,long start,long end)-------获取指定区间的值https://segmentfault.com/a/1190000019952021
JSONObject tobean https://star77266989.iteye.com/blog/2241339
easyui-combobox------textField显示的值 valueField实际的值
通过ApplicationContext的getBean方法来获取Spring容器中已初始化的bean