java - jsp页面中这个地方得到的是null，可是为什么显示null的字符串？不应该是什么都没有吗？

Question

item.getAccount是得到null，为什么会显示出来，不是应该是什么都没有吗？

Answer 1

el expression can solve your problem.
As for why null is displayed, I personally think it’s because of the double quotes

Answer 2

I don’t know the syntax of jsp. If you convert it to a string, it will be displayed naturally, or you can use || to judge it

Answer 3

<%=item.getAccount() == null ? "" : item.getAccount()%>

Answer 4

This is the java code written in jsp. If it is null, it will definitely be displayed as null
Shouldn’t it be done using scope${}?