struts tags solve looping problems

jasonning

Is there a way to replace struts tags on the jsp page
for (int i = a; i <b; i ++)
{
.....
}
a, b are variables of type int

sunnyqt

With <logic: iterate> tag

jasonning

<logic: iterate> isn't iterating over the array

sunnyqt

<logic: iterate> can traverse arrays, maps, lists

tellyou

If it's just for outputting "static" HTML with N repeats, use <% for%>.
Otherwise, from the perspective of a normal programmer's thinking, you most likely (if not 100%) are traversing a "collection". This collection may be an array, it may be java.util.Collection, or it may be java.util.Map or anything that implements java.util.Iterable. And all the types listed above can be handled by logic: iterate, except that it needs to be located in PageContext, that is, page, request, session, etc.

tellyou

Also, in <logic: iterate>, the start and end points use offset and length attributes

zxcv333

You can also use iteration in JSTL to add EL expressions!

jasonning

Then <logic:iterate> can't traverse ordinary loops
Can the el expression be realized?

奥尔戴佩克拉

<logic:iterate>

jasonning

Can you give me an example?