<html:select property="id" style="width:130" styleClass="req" >
<html:optionsCollection name="collecion" label="name" value="id"/>
</html:name>Action里
request.setAttribute("collection",collecion);
<html:optionsCollection name="collecion" label="name" value="id"/>
</html:name>Action里
request.setAttribute("collection",collecion);
<html:select property="id">
<html:optionsCollection name="collecion" label="name" value="id"/>
</html:select>这样就行了collecion是从数据库读取的集合
<%@ 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>
看看Struts自带的这个例子，所有用法都有了。
<html:select property="id" style="width:130" styleClass="req" >
<html:optionsCollection name="collecion" label="name" value="id"/>
</html:name>Action里
request.setAttribute("collection",collecion);
collecion这是bean吗?还是string[]?
<html:option value="X">Y</html:option>
X是从数据库里取的.Y是给用户看的.不过它也是从数据库里取的呀.你的方法不行呀.
你的例子不对呀.a.jsp
<html:select property="name">
<html:option value="0">a</html:option>
<html:option value="1">b</html:option>
<html:option value="2">c</html:option>
<html:option value="3">d</html:option>
</html:select>
0,1,2,3和a,b,c,d都是从数据库里取出来的.我怎么可以动态的加到a.jsp中呢?