Sevrlet code

Path_list.
JSP place
Running the page

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<%
The String list=request. The getParameter (" list ");
%>
This sentence, the JSP have?

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My path_list, I just add you said that in or out of the path to the data

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The items="${list}" into the items="${requestScope. List}" a try,

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Or not, or not to the data

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Under debug. Look at the query to a list of no value, if no value, change it's didn't have to...

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How do you debug