The out built-in object in JSP,out.println() — println red solution

When learning JSP today, I used the out built-in object in JSP and the development tool used IDEA. The result is shown in the figure below

Depressed along while looking for Baidu, may be the keyword to lose inaccurate, messy method a lot of, what to rely on what, anyway, no matter what, finally find a line, although write a little simple and rough, but my problem solved, to avoid the next encounter, write a blog, help others help yourself.

That’s it for now. Everything’s fine when I write it again

In the later learning process, I encountered some problems, such as the request object does not appear getParameter method, etc. The above steps are also applicable.

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