hashmap « API « JSP-Servlet Q&A

1. Using a java object in jsp    stackoverflow.com

<c:set var="nameLookup" value="${names}" />
<c:forEach var="result" items="${results}">
This is an excerpt from a ...

2. How to loop through a HashMap in JSP?    stackoverflow.com

How can I loop through a HashMap in JSP?

    HashMap<String, String> countries = MainUtils.getCountries(l);

<select name="country">
        // ...

3. Is ConcurrentHashMap a reliable choice to use inside Servlet?    stackoverflow.com

I need to map objects inside Servlet. Is ConcurrentHashMap a reliable choice to use? Will all requests get requested object from map or will there be failures?

public class MyServlet extends HttpServlet ...

4. Sending a HashMap object to Java Servlet using C#    stackoverflow.com

I have a Java Servlet application and I have a Java client that works. It simply creates a URLConnection object and an ObjectOutputStream and then just writes the Hashmap object. How do ...

5. plotting hashmap using jqplot    stackoverflow.com

In my Servlet i create a hashmap and sent it to my jsp:

request.setAttribute("hm", map);
in my jsp i want to plot this map using jqplot:

6. How to add several item to HashMap?    coderanch.com

7. how to use hashmap in logic:iterate    coderanch.com

First of all, The iterate tag iterates on a collection. You may either specify an object that itself is a collection, or you may set the property attribute in order to tell which method on the object that returns a collection. Iterate will then loop through that collection, using the iterator() method that all Collections have. A HashMap is not ...

8. help,about HashMap!    coderanch.com

9. In JSP : Retrieve data from a hashmap    coderanch.com

10. Is it correct(Hashmap in jsp)    coderanch.com

Well, coding scriptlets (and especially longer ones) is strongly discouraged in favour of using JSTL in combination with servlets. Creating static variables in JSPs is extremely dangerous. Essentially you're working with globals, which can have very nasty consequences when you have multiple simultaneous requests. You're creating a new database connection for every database request (of which you have several per HTTP ...

13. Hashmap display    coderanch.com

14. HashMap forEach    coderanch.com

15. Iterating a HashMap    coderanch.com

16. Printing hashmaps    coderanch.com

Ok - I usually use them not I didnt do it this time. I havent tried because I really don't know where to begin. I need a if statement to compare the values and then if they match, get the recipients list and iterate though it. The iteration isn't the problem here, its how I can go through the hashmap (since ...

17. how to create nested hashmaps    coderanch.com

19. Display HashMap contents    coderanch.com

You're right, I'm probably not explaining this correctly. So, I'll try giving you the full story. I have a class Object called Resource: public class Resource { private String contentType = null; private String name; private String owner; private String parent; private long size; private String resourceType; private long num; public Resource( String name, String owner, String parent, long size, String ...

21. Access a value in HashMap where key is an object and value is a collection of VO    coderanch.com

if i iterate the hm like : Iterator hIter = hm.entrySet().iterator(); while(hIter.hasNext()){ String value = hIter.next().toString(); log.info("value = " +value); } m getting: value = 20100128-2=[class se.ralip.openarchive.vo.WfmsInvoiceManagementVO[ supplier=Mohanty: documentId=54318: invioceNumber= 3386675205: invoiceDate=19/12/2008: dueDate=19/12/2009: amount=400.00: arrivalDate=null: status=archived: scanno=123_457 ], class se.ralip.openarchive.vo.WfmsInvoiceManagementVO[ supplier=Mohanty: documentId=54319: invioceNumber= 3386675205: invoiceDate=19/12/2008: dueDate=19/12/2009: amount=400.00: arrivalDate=null: status=archived: scanno=123_458 ], class se.ralip.openarchive.vo.WfmsInvoiceManagementVO[ supplier=Mohanty: documentId=54320: invioceNumber= 3386675205: invoiceDate=17/12/2008: dueDate=18/12/2009: amount=4010.00: arrivalDate=null: ...

23. HashMap, contains a key ?    coderanch.com

24. how to iterate hashmap in jsp?    coderanch.com

25. HashMap values in JSP?    coderanch.com

26. Get value from HashMap attribute    coderanch.com