首先需要dwr servlet(uk.ltd.getahead.dwr.dwrservlet)dojo和ajax theme,其中dwr用于正常的校验dojo用于处理ajax效果。
接下来,配置dwr,编写dwr.xml,存放于web-inf/下。内容如下
<!doctype dwr public
"-//getahead limited//dtd direct web remoting 1.0//en"
"http://www.getahead.ltd.uk/dwr/dwr10.dtd">
<dwr>
<allow>
<create creator="new" javascript="validator">
<param name="class" value="org.apache.struts2.validators.dwrvalidator"/>
</create>
<convert converter="bean" match="com.opensymphony.xwork2.validationawaresupport"/>
</allow>
<signatures>
<![cdata[
import java.util.map;
import org.apache.struts2.validators.dwrvalidator;
dwrvalidator.dopost(string, string, map<string, string>);
]]>
</signatures>
</dwr>
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然后需要把其配置到web程序中,往web.xml中加入如下配置代码:
<servlet>
<servlet-name>dwr</servlet-name>
<servlet-class>uk.ltd.getahead.dwr.dwrservlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dwr</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
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最后修改我《struts2表单验证》文章中的jsp文件edit.jsp
head中加入ajax theme,表单form 加入validate=“true” theme=“ajax”即可,现在就可以运行体验ajax效果了。
(t007)