<html:select property="Select" size="1" value="Single 2">
<html:option value="Single 0">0</html:option>
<html:option value="Single 1">1</html:option>
<html:option value="Single 2">2</html:option>
</html:select>
<html:option value="Single 0">0</html:option>
<html:option value="Single 1">1</html:option>
<html:option value="Single 2">2</html:option>
</html:select>
return (this.select);
} public void setSelect(String sSelect[]) {
this.select = select;
}
<html:select property="idKind" multiple="true" >
<html:options collection="idKinds" property="value" labelProperty="label" />
</html:select>
现在问题是有要先把一些idKinds设置成已选状态，该怎么办
<%
String sQueryValue=查询数据;
%>
<html:select property="idKind" multiple="true" value="<%=sQueryValue%>">
<html:options collection="idKinds" property="value" labelProperty="label" />
</html:select>
页面：
<html:select property="beanCollectionSelect" size="10" multiple="true">
<html:optionsCollection name="testbean" property="beanCollection"/>
</html:select>
ActionForm:(TestBean)
/**
* A multiple-String SELECT element using a bean collection.
*/
private String[] beanCollectionSelect = { "Value 1", "Value 3",
"Value 5" }; public String[] getBeanCollectionSelect() {
return (this.beanCollectionSelect);
} public void setBeanCollectionSelect(String beanCollectionSelect[]) {
this.beanCollectionSelect = beanCollectionSelect;
}
to 3332221119(飘) ：我不相信你那些写jsp可以编译通过，而且查询数据的组织格式是什么？这些东西写到jsp中也好的。
而且，这样用也不专业，应该是把formbean在Action中就设置好，jsp没必要管这些了。
我只看过struts1.1的源代码，是不支持多选的
The value to compare with for ing an option selected.
注意，是an option，不是some options，所以，value指出的只能是单个选中，而我上面所说的官方例子，并非是读去多重参数的例子，你可以看struts/example包下面的html-tag的例子，很有帮助的。所以我觉得应该是按例子的样子社指初始多选的。——或许我孤陋寡闻了吧。
还有谁知道呀？郁闷中……
我给你贴原文吧
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<html:html>
<head>
<title>Test html:select Tag</title>
<%
String multipleValues[] =
{ "Multiple 0", "Multiple 1", "Multiple 2", "Multiple 3", "Multiple 4",
"Multiple 5", "Multiple 6", "Multiple 7", "Multiple 8", "Multiple 9" };
pageContext.setAttribute("multipleValues", multipleValues); Vector options = new Vector();
options.add(new LabelValueBean("Label 0", "Value 0"));
options.add(new LabelValueBean("Label 1", "Value 1"));
options.add(new LabelValueBean("Label 2", "Value 2"));
options.add(new LabelValueBean("Label 3", "Value 3"));
options.add(new LabelValueBean("Label 4", "Value 4"));
options.add(new LabelValueBean("Label 5", "Value 5"));
options.add(new LabelValueBean("Label 6", "Value 6"));
options.add(new LabelValueBean("Label 7", "Value 7"));
options.add(new LabelValueBean("Label 8", "Value 8"));
options.add(new LabelValueBean("Label 9", "Value 9"));
pageContext.setAttribute("options", options); String withNulls[] =
{ "String 0", null, "String 2" };
pageContext.setAttribute("withNulls", withNulls);%>
</head>
<body bgcolor="white"><div align="center">
<h1>Test struts-html Select Tag</h1>
</div>Whatever changes you make to properties should be reflected when the page
is redisplayed. Press "Save" to update, or "Cancel" to return to the
main menu.<%--
Ensure that the form bean exists before the form tag is processed. This
is a simple (if not entirely clean) way of ensuring that the initial
values assigned during bean instantiation will be available within the
form, since reset() will not be called when the form bean already exists. The right way to fix this is to modify this webapp so that it does not
refer directly to JSP pages, but goes through Action classes, and to
either modify the TestBean class, adding an initialize() method, or to
have an Action class set the initial values.
--%>
<jsp:useBean id="testbean" scope="session" class="org.apache.struts.webapp.exercise.TestBean"/><html:form action="html-select.do">
<table border="0" width="100%"> <tr>
<th align="right">Single Select Allowed:</th>
<td align="left">
<html:select property="singleSelect" size="10">
<html:option value="Single 0">Single 0</html:option>
<html:option value="Single 1">Single 1</html:option>
<html:option value="Single 2">Single 2</html:option>
<html:option value="Single 3">Single 3</html:option>
<html:option value="Single 4">Single 4</html:option>
<html:option value="Single 5">Single 5</html:option>
<html:option value="Single 6">Single 6</html:option>
<html:option value="Single 7">Single 7</html:option>
<html:option value="Single 8">Single 8</html:option>
<html:option value="Single 9">Single 9</html:option>
</html:select>
</td>
</tr> <tr>
<th align="right">Multiple Select Allowed:</th>
<td align="left">
<html:select property="multipleSelect" size="10" multiple="true">
<html:options name="multipleValues" labelName="multipleValues"/>
</html:select>
</td>
</tr> <tr>
<th align="right">Multiple Select From A Collection (Using <html:options>):</th>
<td align="left">
<html:select property="collectionSelect" size="10" multiple="true">
<html:options collection="options" property="value" labelProperty="label"/>
</html:select>
</td>
</tr> <tr>
<th align="right">Multiple Select From A Collection (Using <html:optionsCollection>):</th>
<td align="left">
<html:select property="beanCollectionSelect" size="10" multiple="true">
<html:optionsCollection name="testbean" property="beanCollection"/>
</html:select>
</td>
</tr> <tr>
<th align="right">Select With Labels From Resources:</th>
<td align="left">
<html:select property="resourcesSelect" size="3">
<html:option value="Resources 0" key="resources0"/>
<html:option value="Resources 1" key="resources1"/>
<html:option value="Resources 2" key="resources2"/>
</html:select>
</td>
</tr> <tr>
<th align="right">
Collection with null labels and values:
</th>
<td align="left">
<html:select property="withNulls" size="3">
<html:options name="withNulls" labelName="withNulls"/>
</html:select>
</td>
</tr> <tr>
<td align="right">
<html:submit>Save</html:submit>
</td>
<td align="left">
<html:reset>Reset</html:reset>
<html:cancel>Cancel</html:cancel>
</td>
</tr></table></html:form>
</html:html>