Two weeks to complete the epidemic statistical system project from crawling to show, can be described as very productive, web terminal has been released to http://123.56.137.134/ here, Android terminal will provide a download link on the site in later.
The next three blog show detailed implementation process
Show results
Screenshot end web:
End Android screenshot:
psp table
| date | Starting time | End Time | Downtime | Net time | activity | Remark |
| 3.10 | 15.30 | 19.00 | 20min | 3h 10min | Crawling nationwide epidemic data and web-side for a simple show | Then compare the pursuit of speed, do the rough, so last week spent a lot of time optimizing web end of the epidemic display system. |
| 3.18 | 9.30 | 20.00 | 3h | 7h | ① crawling world epidemic data ② buy Ali cloud server, a simple configuration environment ③ simple to learn jQuery, Ajax and json
|
Can not remember the specific time, then forget to note the time. |
| 3.19 | 13.00 | 20.30 | 2h | 5h 30min | ① try to use graphs and tables to achieve the asynchronous ajax refresh, ② realized ajax updates to the data, and move with jQuery Modify the control state ③ change bug |
In fact, Ajax can not directly interface to show a few jumps, but that is too cumbersome, then I began to understand some of the other knowledge json and so on. |
| 3.20 | 19.00 | 21.30 | 20min | 2h 10min | ① change bug ② learning Ali cloud database ③ start trying to connect cloud database |
After that some aspects of the bug does not make sense, at this stage I see a lot of people through the Internet domain name remotely connect to the database, I did not realize, listened to the recommendations of friends posted directly to the cloud, calls the database in the cloud. |
| 3.21 | 10.00 | 21.00 | 2h | 9h |
① Publish projects to the cloud server ② recognize the different languages of different sql databases ③ change bug ④ setting the timing task on the server side, the timing data crawling ⑤ beginning to recognize the infeasibility of direct remote connection to the database, and learning Some knowledge of network communications. |
mysql和SQL server里都有sonvert函数，作类型转换，可它们的参数位置竟然相反！因为本机上用的SQL server，MySQL的密码忘了，所以愣是往tomcat上发布了n次，调试了n次才找出这个错误。 |
| 3.22 | 10.00 | 21.00 | 2h | 9h |
①编写疫情展示app ②编写疫情展示服务端 |
实现了客户端和服务端的数据交互 |
| 3.23 | 3h |
①改bug ②学习MPAndroid,将数据可视化展示 |
收尾 |