Struts 1 ActionForm - retrieving a collection from pure HTML
Hi all I have (just like the rest) inherited some struts 1 code. I have had need to add a few more pages to this project.
What I cannot figure out is how to map several distinct but similarly natured input elements to my ActionForm.
Let me elaborate. I create a new <Input> element dynamically as the user inputs more and more items (I use the YUI autocomplete form element and for each entered input I add it as an input element to my form and draw a new YUI autocomplete - complex sounding, I know)
So... My form looks a bit like (... after some prettifying and some such...):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>My Cool App - Test Case Builder</title>
<link rel="stylesheet" type="text/css" href="../script/yui/fonts/fonts-min.css" />
<link rel="stylesheet" type="text/css" href="../skins/myCoolApp/button/button.css" />
<link rel="stylesheet" type="text/css" href="../script/yui/autocomplete/assets/skins/sam/autocomplete.css" />
<link rel="stylesheet" type="text/css" media="screen" href="../skins/myCoolApp/testcase.css" />
<!-- YUI JAVA SCRIPTS -->
<script type="text/javascript" src="../script/yui/yahoo-dom-event/yahoo-dom-event.js"></script>
<script type="text/javascript" src="../script/yui/element/element-min.js"></script>
<script type="text/javascript" src="../script/yui/button/button-min.js"></script>
<script type="text/javascript" src="../script/yui/datasource/datasource-min.js"></script>
<script type="text/javascript" src="../script/yui/autocomplete/autocomplete-min.js"></script>
<!-- APP JAVA SCRIPTS -->
<script type="text/javascript" src="../script/myCoolApp/myCoolApp.js" ></script>
<script type="text/javascript" src="../script/myCoolApp/stack.js" ></script>
<script type="text/javascript" src="../script/myCoolApp/testcase/testcase.js"></script>
<script type="text/javascript" src="../script/myCoolApp/testcase/default-data.js" ></script>
<script type="text/javascript" src="../script/myCoolApp/testcase/data-structs.js" ></script>
<script type="text/javascript" src="../script/myCoolApp/testcase/ui-elements.js" ></script>
</head>
<body class="cf010">
<div id="wrap">
<div id="header">
<div id="main-header">
COOL APP
</div>
</div>
<div id="main-body">
<div id="content">
<div class="col main">
<div id="main">
<form method="post" id="testcaseForm" class="typea" action="">
<fieldset>
<legend>Test Case Builder</legend>
<div id="tk1" class="tabcontrol">
<ul class="tabs">
<li class="first active">
<a href="#">
<span>General</span>
</a>
</li>
<li class="last">
<a href="#">
<span>Parameters</span>
</a>
</li>
</ul>
<div id="tab0" class="tc-panel">
<dl class="cls9">
<dt>
<label for="scenario">Choose Scenario:</label>
</dt>
<dd>
<input type="text" id="scenario" name="scenario" class="text" />
<span id="scenarioToggle"></span>
<div class="auto-complete" id="scenarioContainer"></div>
</dd>
<dt>
<label for="ruleID">Choose Rule ID:</label>
</dt>
<dd>
<input type="text" id="ruleID" name="ruleID" class="text" />
<span id="ruleIDToggle"></span>
<div class="auto-complete" id="ruleIDContainer"></div>
</dd>
<dt>
<label for="Test Case Name" accesskey="t"><span class="accesskey">T</span>est Case Name:</label>
</dt>
<dd>
<input type="text" id="testCaseName" name="testCaseName" class="text" />
</dd>
</dl>
</div>
<div id="tab1" class="tc-panel hidden">
<div class="toolbar" id="action-bar">
<ul>
<li class="first">
<a title="select all" href="#" id="btmSelectAll" class="button">
<span>select all</span>
</a>
</li>
<li>
<a title="remove row" href="#" id="btmRemove" class="button">
<span>remove row</span>
</a>
</li>
<li>
<a title="undo last" href="#" id="btmRollBack" class="button disabled">
<span>undo last</span>
</a>
</li>
<li class="last">
<a title="accept row" href="#" id="btmAccept" class="button disabled">
<span>accept row</span>
</a>
</li>
</ul>
</div>
<div id="param.list" class="gridclip">
<table id='param.list.tbl' class='grid modela' >
<caption>Test Case Summary</caption>
<col/><col/><col/>
<thead>
<tr>
<th class='hl center first'>
<input class='grid-select-all' type='checkbox' />
<th>
<th scope='col'>Row</th>
<th scope='col'>Parameter</th>
<th scope='col' class='last'>Value</th>
</tr>
</thead>
<tfoot>
<tr>
<th scope='row'>Total</th>
<td colspan='3'>2 parameters as Test Case input</td>
</tr>
</tfoot>
<tbody id='param.list.tbl.body'>
<tr class='odd'>
<td class='rowcheck center first'>
<input value='param1###value1' id='cb1' name='SelectedRows' class='grid-select-row' type='checkbox'/>
</td>
<td class='id'>1</td>
<td>param1</td>
<td class='last'>value1</td>
</tr>
<tr class='even'>
<td class='rowcheck center first'>
<input value='param2###value2' id='cb2' name='SelectedRows' class='grid-select-row' type='checkbox'/>
</td>
<td class='id'>2</td>
<td>param2</td>
<td class='last'>value2</td>
</tr>
<tr class='odd'>
<td class='rowcheck center first' />
<td class='id'><em开发者_开发问答>new</em></td>
<td>
<dl class='clsTable'>
<dt>
<input type='text' id='param' name='param' class='text paramInput' />
</dt>
<dd>
<span id='paramToggle' />
</dd>
<div class='auto-complete' id='paramContainer' />
</dl>
</td>
<td class='last'>
<dl class='clsTable'>
<dt>
<input type='text' id='value' name='value' class='text valueInput' />
</dt>
</dl>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div> <!-- tabcontrol -->
</fieldset>
<div class="submit-box">
<input type="submit" name="formRun" id="formRun" class="form-save"
value="Execute" accesskey="x" title="Run: Press Alt + [Shift] + x" />
<input type="submit" name="formSave" id="formSave"
value="Save" accesskey="s" title="Save: Press Alt + [Shift] + s" />
<input type="submit" name="formLoad" id="formLoad"
value="Load" accesskey="l" title="Load: Press Alt + [Shift] + l" />
<input type="submit" name="formCancel" id="formCancel" class="form-cancel"
value="Cancel" accesskey="c" title="Cancel: Press Alt + [Shift] + c" />
</div>
</form>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
As you can see the following is pretty much a duplicate:
<tr class='odd'>
<td class='rowcheck center first'>
<input value='param1###value1' id='cb1' name='SelectedRows' class='grid-select-row' type='checkbox'/>
</td>
<td class='id'>1</td>
<td>param1</td>
<td class='last'>value1</td>
</tr>
<tr class='even'>
<td class='rowcheck center first'>
<input value='param2###value2' id='cb2' name='SelectedRows' class='grid-select-row' type='checkbox'/>
</td>
<td class='id'>2</td>
<td>param2</td>
<td class='last'>value2</td>
</tr>
The relevant part of my stuts-config.xml file is:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">
<struts-config>
<data-sources />
<form-beans>
<form-bean name="TestCaseForm" type="com.blahblah.mycoolapp.forms.TestCaseForm" />
</form-beans>
<action-mappings>
<action path="/pages/SaveTestCase" name="TestCaseForm"
type="org.springframework.web.struts.DelegatingActionProxy" scope="request">
</action>
</action-mappings>
<message-resources parameter="MessageResources" />
</struts-config>
I also use spring 2.56 (The relevant part being):
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<bean name="/pages/SaveTestCase" class="com.blahblah.mycoolapp.actions.TestCaseBuilderSaveAction" />
</beans>
My Java ActionForm class (from what I had learned off the net) is:
package com.blahblah.mycoolapp.forms;
import java.util.ArrayList;
import java.util.List;
import org.apache.struts.action.ActionForm;
public class TestCaseForm extends ActionForm {
private static final long serialVersionUID = 2352146257739099766L;
private String scenario;
private String ruleID;
private String testCaseName;
private List<String> SelectedRows = new ArrayList<String>() ;
public String getScenario() {
return scenario;
}
public void setScenario(String scenario) {
this.scenario = scenario;
}
public String getRuleID() {
return ruleID;
}
public void setRuleID(String ruleID) {
this.ruleID = ruleID;
}
public String getTestCaseName() {
return testCaseName;
}
public void setTestCaseName(String testCaseName) {
this.testCaseName = testCaseName;
}
public List<String> getSelectedRows() {
return SelectedRows;
}
public void setSelectedRows(int index, String value) {
this.SelectedRows.add(value);
}
}
The question is why do I get an empty SelectedRows in my TestCaseBuilderSave Action?
Thanks all who have the patience to read such a long question...
and (hopefully) thanks to all you potential saviors :)
EDIT 1:
Due to @ahiru's request I post my action class which - for the time being is just a stripped down. almost do nothing, class:
public class TestCaseBuilderSaveAction extends Action {
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
HttpServletResponse response) throws Exception {
response.setContentType("application/octet-stream");
response.setHeader("Content-Disposition","attachment;filename=superfish.xml");
try
{
ServletOutputStream out = response.getOutputStream();
String contentStr = "<Yaneeve>Has been here...</Yaneeve>";
byte[] bytes = contentStr.getBytes();
out.write(bytes, 0, bytes.length);
out.flush();
out.close();
}catch(Exception e){
e.printStackTrace();
}
return null;
}
}
I'm not a struts master or anything but can struts handle building a List out of the inputs? Would it rather be better to use an array of strings? Also have you tried adding a method in your form?
public void setSelectedRows(List<String> list) { SelectedRows = list;}
I think there is a way to define a indexed input in the struts config.
--update
Could you possibly post your action class where you are trying to get these values?
I know you said that the method above does not work but here is what works for me in a similar situation (I think). Sorry I can't find the exact code but here is what I remember:
-ActionForm
private String[] strings;
public void setStrings(String[] strings) { this.strings = strings;}
public String[] getStrings() { return strings; }
jsp/html/whatever
<input type="text" value="x" name="strings[]">
<input type="text" value="y" name="strings[]">
<input type="text" value="z" name="strings[]">
I'm also curious if spring and struts play together nicely (i've done no research on this)
It seems as if the problem had been that the checkboxes had not been 'checked'.
Only 'checked' checkboxes get their value transferred to the server...
One thing I wish to emphasize is that I had converted my code to be like what @ahiru suggested:
private String[] strings;
public void setStrings(String[] strings) { this.strings = strings;}
public String[] getStrings() { return strings; }
加载中,请稍侯......
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