DWR与Spring的集成-CFANZ编程社区

DWR与Spring的集成

今天复习一下DWR与Spring的集成。

1. 导入DWR框架的包,

2. 配置spring配置文件

<?xmlversion="1.0" encoding="UTF-8"?> <beansxmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd" default-autowire="byName" default-lazy-init="true"> <beanid="dwrTest" class="book.dwr.DwrTest" /> </beans>

<?xmlversion="1.0" encoding="UTF-8"?>
<beansxmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd"
    default-autowire="byName" default-lazy-init="true">
    
    <beanid="dwrTest" class="book.dwr.DwrTest" />
    
</beans>

3. 在/WEB-INF/下创建dwr.xml配置文件

<?xmlversion="1.0" encoding="UTF-8"?> <dwr> <allow> <createcreator="spring" javascript="service"> <paramname="beanName" value="dwrTest" /> <includemethod="getPersonList"/><!--需要对外暴露的方法--> </create> </allow> </dwr>

<?xmlversion="1.0" encoding="UTF-8"?>
<dwr>
    <allow>
       <createcreator="spring" javascript="service">
           <paramname="beanName" value="dwrTest" />
           <includemethod="getPersonList"/><!--需要对外暴露的方法-->
       </create>
    </allow>
</dwr>

creator属性的值可以是new,struts,spring......因为此处是整合spring来做的，所以设置成“spring”，javascript="DWRUser" 表示实例转换成javascript语言后以DWRUser命名，前台页面可以通过代码（<script type='text/javascript' src='../../dwr/interface/DWRUser.js'></script>）来调用。param元素的name属性值可以是class,beanName等，此处用beanName,value得值是定义在applicationContext.xml中某个bean的id值。

4. 在web.xml文件中配置

<?xmlversion="1.0" encoding="UTF-8"?> <web-appversion="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <!-- 配置spring --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>dwr-invoker</servlet-name> <servlet-class>org.directwebremoting.servlet.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> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>

<?xmlversion="1.0" encoding="UTF-8"?>
<web-appversion="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    
 
    <!-- 配置spring -->
    <context-param>
       <param-name>contextConfigLocation</param-name>
       <param-value>/WEB-INF/spring/*.xml</param-value>
    </context-param>
    <listener>     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
 
<servlet>
<servlet-name>dwr-invoker</servlet-name>       <servlet-class>org.directwebremoting.servlet.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>
 
    <welcome-file-list>
       <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

5. 创建一个bean ,使dwr 将它转换成js，此类就一个方法，用于测试Extjs中自定义DWR数据代理

package book.dwr; publicclass DwrTest { public String getPersonList(){ StringBuffer jsonData = new StringBuffer(); jsonData.append("{"); jsonData.append("metaData : {totalProperty: 'results',"); jsonData.append("root: 'rows',"); jsonData.append("id: 'id' ,"); jsonData.append("fields : ["); jsonData.append("{name: 'id',mapping:'id'},"); jsonData.append("{name: 'personName',mapping:'name'},"); jsonData.append("{name: 'personAge',mapping:'age'}"); jsonData.append("]},"); jsonData.append("results : 5,"); jsonData.append("rows : ["); jsonData.append("{ id : 0 , name : 'tom' , age : 24 },"); jsonData.append("{ id : 1 , name : 'jack' , age : 18 }"); jsonData.append("]"); jsonData.append("}"); return jsonData.toString(); } }

package book.dwr;
publicclass DwrTest {
    public String getPersonList(){
       StringBuffer jsonData = new StringBuffer();
       jsonData.append("{");
       jsonData.append("metaData : {totalProperty: 'results',");
       jsonData.append("root: 'rows',");
       jsonData.append("id: 'id' ,");
       jsonData.append("fields : [");
       jsonData.append("{name: 'id',mapping:'id'},");
       jsonData.append("{name: 'personName',mapping:'name'},");
       jsonData.append("{name: 'personAge',mapping:'age'}");
       jsonData.append("]},");
       jsonData.append("results : 5,");
       jsonData.append("rows : [");
       jsonData.append("{ id : 0 , name : 'tom' , age : 24 },");
       jsonData.append("{ id : 1 , name : 'jack' , age : 18 }");
       jsonData.append("]");
       jsonData.append("}");
       return jsonData.toString();
    }
}

6. 调用

这步省略了。