About display

[terry]

Hi,

I wrote following codes in my index.jsp:
<c:forEach items="${pr:getPressReleases(pageContext)}" var="pressRelease">
    <h2 class="headline">
      <jsp:element name="a">
        <jsp:attribute name="href"><cut value="${pressRelease.href}"/></jsp:attribute>
   <jsp:body><cut value="${pressRelease.title}"/></jsp:body>
      </jsp:element>
    </h2>
    <p class="date"><fmt:formatDate value="${pressRelease.launchDate}" dateStyle="long"/></p>
    <p class="abstract"><cut value="${pressRelease.abstract}"/></p>
  </c:forEach>

And the browse display my newses  unorderly.
But I want to display the news's title order by the launchDate desc, how I to do ?

[arielb]

you can modify the implementation of getPressReleases (in Util.java) to sort the collection before returning it.

[terry]

you can modify the implementation of getPressReleases (in Util.java) to sort the collection before returning it.

bu how to I do in detail???
thank you

[arielb]

at the end of getPressReleases in Util.java add:

Collections.sort(result, new Comparator() {
    public int compare(PressReleaseBean prb1, PressReleaseBean prb2) {
           return prb1.getLaunchDate().compare(prb2.getLaunchDate());
    }
});
‍‍‍‍‍‍‍

see http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collections.html
for more information on how to sort lists.

[terry]

at the end of getPressReleases in Util.java add:

Collections.sort(result, new Comparator() {
    public int compare(PressReleaseBean prb1, PressReleaseBean prb2) {
           return prb1.getLaunchDate().compare(prb2.getLaunchDate());
    }
});
‍‍‍‍‍‍‍

see http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collections.html
for more information on how to sort lists.

I do it follow your way,but appear two error:

G:\noviweb>javac Util.java
Util.java:56: <cryptonym org.alfresco.web.pr.Util$1>not abstract，and not cover with java.util
.abstract method of Comparator  compare(java.lang.Object,java.lang.Object)
    public int compare(PressReleaseBean prb1, PressReleaseBean prb2) {
               ^
Util.java:57: not find symbol
symbol： method compare(java.util.Date)
location： class java.util.Date
           return prb1.getLaunchDate().compare(prb2.getLaunchDate());
                                    ^
advert： want to know particular information，please use -Xlint:unchecked afresh javac。
2 errors
‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[arielb]

the method on Date is compareTo, not compare.  my mistake.

what version of the jdk are you using?  the code i'm providing is for jdk1.5.

if you are using an older jdk this should work.

Collections.sort(result, new Comparator() {
    public int compare(Object o1, Object o2) {
           return ((PressReleaseBean)o1).getLaunchDate().compareTo(((PressReleaseBean)o2).getLaunchDate());
    }
});
‍‍‍‍‍‍‍

[terry]

the method on Date is compareTo, not compare.  my mistake.

what version of the jdk are you using?  the code i'm providing is for jdk1.5.

if you are using an older jdk this should work.

Collections.sort(result, new Comparator() {
    public int compare(Object o1, Object o2) {
           return ((PressReleaseBean)o1).getLaunchDate().compareTo(((PressReleaseBean)o2).getLaunchDate());
    }
});
‍‍‍‍‍‍‍

i posted you a private message.please see it,thank you.