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 开发者_如何转开发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.
加载中,请稍侯......
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