Hi All,
I want to append a list in the url that is a href ,how can do so and how can i read it using request.getParameter() ? or a complete bean object in the url ?
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91answers:
1
+1
A:
Use the same name for every item, build something like this, http://example.com/somepath?amt=1&amt=2&amt=3.
And then you can use HttpServletRequest.getParameterMap(). Or alternatively, you can use HttpServletRequest.getParameterValues(name). You might like to use the latter by specifying the name, for example,
String[] amts = request.getParameterValues("amt");
By the way, getParameterMap() will give you a Map object having parameter names as key. It will have all other request parameters as well as your 'amt'.
Map map = request.getParameterMap();
String[] amts = map.get("amt");
Adeel Ansari
2010-01-25 10:54:24
sarah
2010-01-25 11:00:16
HttpServletRequest.getParameterMap() is failing ,i am appending the list in a url .please update the answer
sarah
2010-01-25 11:03:59
getParameterMap will give you a Map object having parameter names as key. It will have all other request parameters as well as your 'amt'. So, you might like to go with the latter one.
Adeel Ansari
2010-01-25 11:11:54
Adeel Ansari
2010-01-25 11:15:13
HashMap map=(HashMap) getRequest().getParameterMap();log.info("key is ::"+map.get("amt").toString());is it some thing like this ?how wil it give me the value ?
sarah
2010-01-25 11:16:31
Try this, and please take my advice and make a habit to read the docs. See my addendum.
Adeel Ansari
2010-01-25 11:21:45
It returns a `String[]`. By the way, `getParameterValues()` way is preferred.
BalusC
2010-01-25 11:22:07
getParameterValues() is returning me a string[] ,i am appending a complete list in the usrl as amt=somelist ,how would i get the complete list using getParameterValues("amt") ?please clarify it.
sarah
2010-01-25 11:25:59
you must do this: http://example.com/somepath?amt=1 note that the same parameter is appended several times.
KarlP
2010-01-25 11:44:46
sarah
2010-01-25 12:51:07
sarah
2010-01-25 13:04:11
Don't tell me, you can't loop over your list? Its that simple. You even do it in your JSP using JSTL/EL. And doing it in Java is no problem at all.
Adeel Ansari
2010-01-25 15:48:13