Abstract
Since the outbreak of COVID-19 in 2020, it has had a great impact on the health
of the people and the economic development of all regions of the country, and the
impact of COVID-19 on various fields has not been completely eliminated. In the past
three years, there have been multiple outbreaks of new epidemics in various regions
of the country, resulting in many people being quarantined. This has also led to the
need for students at all stages of the country to take online classes at home, which
has also brought inconvenience to their learning. Although the current epidemic has
been well controlled, if the virus mutates again, no one can guarantee that the
epidemic will return. At the beginning of the outbreak, people often learned about
daily epidemic data through television news or newspapers, but this form is
time-consuming and laborious because the number of information transmission
channels in a region is limited, and people are not free to understand epidemic
related data, and the number of prevention and control personnel in each region is
certainly limited, Obtaining epidemic data through traditional methods cannot
ensure the accuracy and timeliness of the data.
The front end interface of this system uses the latest WeChat applet technology
and uses WXML for layout, making the entire front end page more beautiful, greatly
improving the user experience. In addition, whether the system uses a computer to
access the back end management terminal or uses mobile devices to access the
applet terminal, it can ensure that the interface can be correctly typeset. The
back-end code technology is JSP, which is one of the most commonly used
programming languages at present, and can ensure the stability and smoothness of
the system. JSP can flexibly connect to the database. The data in this system uses a
MYSQL database, which can improve the speed of queries and enhance the stability
and security of system data storage. This system is divided into three roles: store
user, mobile phone registered user, and system administrator.
Key words:Epidemic situation; Flow modulation; Applet; JSP； MySQL
