Prerequisite: Jsp technology is from the 1.0 version launched in September 1999, it has been 20 years now, that is to say, this technology is already an old technology. Moreover, not so many companies use this technology, mainly because they eat too much memory. So, I’m going to keep everything simple and find some documents for everyone. You can read it by yourself. I won’t introduce more. I hope you understand that you can choose this by yourself. You can skip this article and learn.
1. Jsp nine built-in objects
Jsp nine built-in objects: https://blog.csdn.net/qq_20610631/article/details/81333816
Detailed explanation of the nine built-in objects of Jsp: https://www.cnblogs.com/liuyangv/p/8059848.html
Analysis of nine built-in Jsp objects: https://bbs.csdn.net/topics/390793512
Two, four scopes
Four scope attributes: https://www.cnblogs.com/heqiyoujing/p/9516550.html
Detailed explanation of the four scopes: https://blog.csdn.net/w405722907/article/details/77530002
Four scopes: https://www.cnblogs.com/fengli9998/p/6541252.html
Three, Java Bean
Java Bean basics: https://www.runoob.com/jsp/jsp-javabean.html
Principle and Application of Java Bean: https://www.iteye.com/blog/forrest420-945283
Java Bean usage: https://blog.csdn.net/keep12moving/article/details/92666633
Understanding and summary of Java Bean: https://www.cnblogs.com/junhuawang/p/6635123.html
That's it, the end.