1 Web.xml 配置
< servlet-name > dwr-invoker </ servlet-name >
< servlet-class >
org.directwebremoting.spring.DwrSpringServlet
</ servlet-class >
< init-param >
< param-name > debug </ param-name >
< param-value > true </ param-value >
</ init-param >
< load-on-startup > 3 </ load-on-startup >
</ servlet >
<servlet-mapping>
<servlet-name>dwr-invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
這裏有個小技巧.查看Dwr源碼,在DwrSpringServlet中它會查找Spring的WebApplicationContext,如下:
container = new SpringContainer();
container.setBeanFactory(webappContext);
ContainerUtil.setupDefaults(container, servletConfig);
ContainerUtil.setupFromServletConfig(container, servletConfig);
所以,你必須在Web.xml中加上Spring的ContextLinstener才能正常使用Dwr:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.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.spring.DwrSpringServlet
</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>3</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dwr-invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
2 Bean 配置文件寫法
<beans xmlns ="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://www.directwebremoting.org/schema/spring-dwr
http://www.directwebremoting.org/schema/spring-dwr-2.0.xsd">
<!--<dwr:controllerid="dwrController"debug="true"/>-->
<dwr:configuration>
<dwr:convert
class="ww.support.web.dwr.validate.FieldValidateInfo" type="bean">
</dwr:convert>
</dwr:configuration>
<bean id="genericValidatorDwr"
class="ww.support.web.dwr.validate.GenericValidator">
<dwr:remote javascript="genericValidatorDwr">
<dwr:include method="isEmpty" />
<dwr:include method="isNotNumeric" />
<dwr:include method="isNumberNotInRange" />
<dwr:include method="isNumberGreaterThan" />
</dwr:remote>
</bean>
</beans>
3 jsp的調用
src='<%=request.getContextPath()%>/dwr/engine.js'>
</script>
<script type='text/javascript'
src='<%=request.getContextPath()%>/dwr/util.js'></script>
<script type='text/javascript'src='<%=request.getContextPath()%>/dwr/interface/genericValidatorDwr.js'>
</script>
<script type='text/javascript'>
genericValidatorDwr.isNotNumeric(name,value,message, {
callback:function(dataFromServer) {
yourFunction(dataFromServer);
}
});
function yourFunction(data){
alert(data.message);
}
</script>