Develop Reference

JSOUP - Help getting <IMG SRC> from <DIV CLASS>

I have the HTML snippet below. There are multiple div classes for "teaser-img" throughout the document. I want to be able to grab all the "img src" from all these "teaser-img" classes.
<div class="teaser-img">
<a href="/julien/blog/failure-consciousness-vs-success-consciousness-shifting-focus-become-badass-or-loser">
<img src="http://www.rsdnation.com/files/imagecache/blog_thumbnail/files/blog_thumbs/rsdnatonaustin.jpg" alt="" title=""/>
</a>
</div>
I have tried many things so I wouldn't know what code to share with you guys. Your help will be much appreciated.

final String html = "<div class=\"teaser-img\">\n"
+ " <a href=\"/julien/blog/failure-consciousness-vs-success-consciousness-shifting-focus-become-badass-or-loser\">\n"
+ " <img src=\"http://www.rsdnation.com/files/imagecache/blog_thumbnail/files/blog_thumbs/rsdnatonaustin.jpg\" alt=\"\" title=\"\"/>\n"
+ " </a>\n"
+ "</div>";
// Parse the html from string or eg. connect to a website using connect()
Document doc = Jsoup.parseBodyFragment(html);
for( Element element : doc.select("div.teaser-img img[src]") )
{
System.out.println(element);
}
Output:
<img src="http://www.rsdnation.com/files/imagecache/blog_thumbnail/files/blog_thumbs/rsdnatonaustin.jpg" alt="" title="">
See here for documentation about the selector syntax.

How to pass a parameter from Java method to a div in JSP

I have a class where I have a method that displays data. Each data displayed has a link. When I click on the link I want to pass parameter to a specific div in a JSP page.
eg: The method in my java class has code like:
output += "<td width=\"30%\" " + colorCode + " > " +
"" + testName + "";
And index.jsp has a div:
<div id="testselect" title="Basic try">
</div>
How do I call the div with id testselect from when the link is clicked and how do I pass the parameter also?

liferay : rendering <portlet:renderURL> in custom taglib

want to create a link to other pages of portlet in my own taglib with out.print() but in execution liferay can't render <portlet:renderURL> taglibs :
taglib code :
int counter = 0;
while (rs.next()) {
counter++;
int spcPk = Integer.parseInt(rs.getString("tCommodityGroupSpcPK"));
result = "<tr>" +
" <td id=\"group-"+counter+"\">" +
" <a href=\"<portlet:renderURL><portlet:param name='jspPage'" +
" value='subGroup.jsp?p1="+spcPk+"' /></portlet:renderURL>\" /> " +
" "+rs.getString("xa")+" " +
" </a> " +
" </td> " +
" <td id=\"group-"+counter+"\">"+rs.getString("xx")+"</td> " +
" <td id=\"group-"+counter+"\">"+rs.getString("aa")+"</td> " +
" <td id=\"group-"+counter+"\">"+rs.getString("Result")+"</td> " +
" </tr>";
out.print(result);
}
rs.close();
// out.println(result);
cstmt.close();
in execution of view.jsp and other tags has been rendered successfully but the liferay taglibs don't .. when i click on links i have somthing like this in my url !!
localhost:8081/%3Cportlet:renderURL%3E%3Cportlet:param%20name='jspPage'%20value='subGroup.jsp?p1=3'%20/%3E%3C/portlet:renderURL%3E
can anybody help me in rendering that taglibs in custom taglib class ?

Thats obvious, JSP Engine consider your tag as any other markup.
You have to use the API rather than Tag like mentioned below
PortletURL portletURL = renderResponse.createRenderURL();
portletURL.setParameter("jspPage", "subGroup.jsp?p1="+spcPk);
then inject portletURL.toString() into the markup
UPDATE:
You should have access to both renderRequest and renderResponse implicitly if you define <portlet:defineObjects /> in your JSP.
The other way to get them from normal request object is
PortletResponse portletResponse = (PortletResponse)request.getAttribute(JavaConstants.JAVAX_PORTLET_RESPONSE);
You can refer to the source code of any of the existing Liferay UI Tags like asset-categories-navigation for more information.

retrieve value of arraylist in javascript in same page

There is a JSP page in which i have an ArrayList variable. I need these arraylist values(txt1 and txt2) in script tag.I have tried lots of combinations and googling but didnot succeed.
javascript function
function fun1()
{
// how to get arraylist values
}
JSP page:
<body>
<%
ArrayList<String> al= new ArrayList<String>();
al.add("txt1");
al.add("txt2");
out.println("<input type=text id=" + al.get(0) + ">");out.println("<br>");
out.println("<input type=text id= " + al.get(1) + ">");out.println("<br>");
out.println("<input type=button id=btn1 value=click onClick=fun1(); > ");
%>
</body>
Thanks for reply

Inside javascript you can use Scriplets very well
Assume the list 'arrayList' is having [1,2,3,4] in java (JSP)
you can get the array list by this
function fun1()
{
var list = '<%= arrayList %>';
}
if you print the variable list, it will be a string with value '[1,2,3,4]'
You can then split this using Regex or simple string operation
<body>
<%
ArrayList<String> al= new ArrayList<String>();
al.add("txt1");
al.add("txt2");
out.println("<input type=text id=" + al.get(0) + ">");out.println("<br>");
out.println("<input type=text id= " + al.get(1) + ">");out.println("<br>");
out.println("<input type=button id=btn1 value=click onClick=fun1(); > ");
%>
</body>
<script>
// try the script here
</script>

Try something like this.
<script>
var myArray=new Array();
myArray[0] = '<%= al.get(0) %>';
myArray[1] = '<%= al.get(1) %>';
<script>

You could create a script tag which creates an array in js that holds all you values. I'm not familar with jsp but deppending on oyur code it could look like:
out.println("<script type='text/javascript'>");
out.println("var myJsArray = new Array();");
foreach(var arrayMember in al)
{
out.println("myJsArray.push(" + arrayMember + ");");
}
out.println("</script>");
In Js just use the array:
function fun1()
{
var firstArrayMember = myJsArray[0];
// or whatever you want to do
}
You could also use assoziativ arrays if you have a key for a specific array member.
Hope you got the idea

I would have the Java code somewhere else, but if you insist on having it inside your JSP, try having readable HTML and only output Java content using <%=...%> - something like this:
<%
ArrayList<String> list = new ArrayList<String>();
list.add("text1");
list.add("text2");
%>
<body>
<form ...>
<input type="text" id="<%=list.get(0)%>" />
<input type="text" id="<%=list.get(1)%>" />
<input type="button" id="button1" value="Click" onclick="functionOne();" />
</form>
<script type="text/javascript">
function functionOne() {
alert(document.getElementById("<%=list.get(0)%>").value);
}
</script>
</body>

Capture multiple check box selection JSP Parameters

I found this post that shows how to pass multiple check box selections to another JSP page, but it's not working for me. When I try to get the selected values I get:
checked boxes: [Ljava.lang.String;#3f3fbd
Here are my two pages (be gentle, this is my first attempt at JSP!)
createSHAREfile.jsp basically runs a query to find all the terms that have not been processed and show each term with a check box next to it:
<title>Create SHARE Files</title>
</head>
<body>
<jsp:include page="../menu/header.jsp" flush="false" />
<form name='SelectSHARETerms' method='post' action="SHAREProcessing.jsp">
<fieldset><legend>Select Terms to Process for SHARE</legend>
<table align='left'>
<% String termDetail = "", currDate = "";
currentDateTime datetime = new currentDateTime();
datetime.setCurrDate();
currDate = datetime.getCurrDate();
java.sql.Date todayDate = java.sql.Date.valueOf(currDate);
Terms terms = new Terms();
ArrayList<Terms.termsTable> termsObjList = new ArrayList<Terms.termsTable>();
terms.setTermsSql("Select * from Terms where TermDate <= '" + currDate + "' AND VoucherProcessDate Is Null");
boolean indicator = terms.setListOfTerms();
if (indicator == true) {
int size = terms.getListSize();
termsObjList = terms.getTermsList();
for (int i=0; i<size; ++i) {
Terms.termsTable eachTerm = (Terms.termsTable)termsObjList.get(i);
java.sql.Date termDate = eachTerm.TermDate;
%>
<tr><td><input type=checkbox name=SelectedTermDate id='SelectedTermDate<%=i%>' value="<%=i%>"><%=termDate %></td></tr>
<%
}
}
%>
<tr><td align='center'><input type='submit' value='Submit'></input></td></tr>
</table>
</fieldset>
</form>
</body>
</html>
When the submit button is pressed I call SHAREProcessing.jsp. Right now all i'm trying to do on this page is show which termdates the user has selected so I can use them as parameters to a Java Class that will create the files for the selected terms:
<title>SHARE Processing</title>
</head>
<body>
<jsp:include page="../menu/header.jsp" flush="false" />
<table width='50%' align='center' border='1'>
<% String[] SelectedValues = request.getParameterValues("SelectedTermDate");
System.out.println("checked boxes: " + SelectedValues);
%>
</body>
</html>
Here's where I'm trying to use the code shown in the other post but it's not working :(
Thanks for any help!
Leslie

You're trying to print the whole string array with System.out.println, and so you get that. It's probably working fine.
Try this:
System.out.println("checked boxes:");
for (int i = 0; i < SelectedValues.length; ++i)
System.out.println(" " + SelectedValues[i]);
Also, I beg you: in your spare time, find out about a modern web framework (there are zillions for Java) and strive to escape from the painful world of coding Java inside JSP files.

You're just facing the default value of Object#toString().
Either just loop over it and print each item, or use Arrays#toString(). Here's an SSCCE:
package com.stackoverflow.q2426380;
import java.util.Arrays;
public class Test {
public static void main(String... args) {
String[] array = {"foo", "bar" , "waa"};
System.out.println(array); // [Ljava.lang.String;#addbf1
String arrayAsString = Arrays.toString(array);
System.out.println(arrayAsString); // [foo, bar, waa]
}
}
That said, this problem has actually nothing to do with JSP. It's just a view technology. The problem is rather in the basic Java code --which you wrote at the wrong place, in a JSP file instead of a Java class. I strongly agree with the comments that writing raw Java code in JSP files is a bad practice. Start learning Servlets.