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<form-bean name="queryUserForm" type="org.apache.struts.action.DynaActionForm">
<form-property name="testQuery" type="java.lang.String[]"></form-property>
......
</form-bean>
<html:checkbox property="testQuery" value="a"></html:checkbox>
<html:checkbox property="testQuery" value="b"></html:checkbox>
<html:checkbox property="testQuery" value="c"></html:checkbox>
DynaActionForm dynaActionForm = (DynaActionForm)form;
String [] str = (String[])dynaActionForm.get("testQuery");