记性太差，做个笔记、、、

第一步：

下载dwr的jar包放到lib文件夹下；

点击打开链接

第二步：

在web.xml配置DWR；

[html]
<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> 

<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

[html]
<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> 

<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

[html]
<script src="./dwr/engine.js"></script>   
<script src="./dwr/util.js"></script>  
<script src="./dwr/interface/AjaxMonitor"></script> 

<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

[javascript]
//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); 
    } 

//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：

[java]
<SPAN style="WHITE-SPACE: pre"> public class MonitorAction {</SPAN> 

 public class MonitorAction {[java] view plaincopyprint?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; 
    } 

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;
 }