记性太差，做个笔记、、、
第一步：
下载dwr的jar包放到lib文件夹下；
第二步：
在web.xml配置DWR；
<servlet>
<servlet-name>dwr-invoker</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-invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>第三步：
创建DWR配置文件dwr.xml
<dwr>
<allow>
<create creator="new" javascript="AjaxBean">
<param name="class" value="com.test.ajax.AjaxBean"/>
</create>-->
<create creator="new" javascript="AjaxMonitor">
<param name="class" value="com.anthony.struts2.action.MonitorAction"/>
</create>
<!-- 配置DWR表单验证器 -->
<create javascript="validator" creator="new">
<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>第四步：
访问http://localhost:8080/PoliceMap02/dwr，也就是自己项目的后面加个dwr,获取如下资源
<script src="./dwr/engine.js"></script> <script src="./dwr/util.js"></script> <script src="./dwr/interface/AjaxMonitor"></script>再将上述的资源放到页面的头部
第五步：
测试：
页面提交请求
//设置短信中心号码
function SetPhoneSMS(){
var key = onlineList.options[onlineList.selectedIndex].value;
var num = document.getElementById('setphonenum').value;
window.alert(num);
AjaxMonitor.setPhoneNum(key,num,processSMS);
}
后台处理：
public class MonitorAction {
public String setPhoneNum(String key,String num){
int type = OrderSet.SMSCENTERNUM;
SendSetSMSCenterNumber centerNumber = new SendSetSMSCenterNumber();
centerNumber.setSMSNum(num);
byte[] bytes = centerNumber.toBytes();
HandleSend.parSEOrder(type,key,bytes);
return null;
}