首先，我们定义一个总体的tiles视图 /tiles/mainTemplate.jsp
首先使用:<tiles:getAsString name="title"/>打印tiles配置文件中定义的字符串属性title
然后是分别加载header,content,footer三个jsp页面，共同组成mainTemplate.jsp
<%@taglib uri="http://jakarta.apache.org/struts/tags-tiles" prefix="tiles"%> <html> <head> <title><tiles:getAsString name="title"/></title> </head> <body> the title is:<tiles:getAsString name="title"/><br> <tiles:insert name="header"/><br> <tiles:insert name="content"/><br> <tiles:insert name="footer"/><br> </body> </html>
header.content.footer页面如下：
<html> <head> </head> <body> this is from header </body> </html> <html> <head> </head> <body> this is from content </body> </html> <html> <head> </head> <body> this is from footer</body> </html>
Spring MVC 控制类：
package Action; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import model.Student; import org.springframework.validation.BindException; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractCommandController; public class TilesHomeController extends AbstractCommandController { protected ModelAndView handle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, BindException arg3) throws Exception { return null; } protected ModelAndView handleRequestInternal(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception { return new ModelAndView("courseDetail","",""); } }
当我们运行上面这个控制器时候，系统会自动去寻找courseDetail.jsp这个文件，但我们还没有定义这个文件，所以，我们要这样写tiles-def.xml
<!DOCTYPE tiles-definitions PUBLIC "-//Apache Software Foundation//DTD Tiles Configuration//EN" "http://jakarta.apache.org/struts/dtds/tiles-config_1_1.dtd"> <tiles-definitions> <definition name="template" page="/tiles/mainTemplate.jsp"> <put name="title" value="default title"/> <put name="header" value="="/tiles/header.jsp"/> <put name="content" value="/tiles/content.jsp"/> <put name="footer" value="/tiles/footer.jsp"/> </definition> <!--以courseDetail命名的配置，覆盖了模板中的title和content对应的页面--> <definition name="courseDetail" extends="template"> <put name="title" value="courseDetail title"/> <put name="content" value="/tiles/courseContent.jsp"/> </definition> </tiles-definitions>
/title/courseContent.jsp
<%@taglib uri="http://jakarta.apache.org/struts/tags-tiles" prefix="tiles" %> <html> <head></head> <body> this is courseContent </body> </html>
spring配置文件：
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd" > <beans> <bean id="simpleUrlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <property name="mappings"> <props> <prop key="/tiles.mvc">TilesController</prop> </props> </property> </bean> <bean id="TilesController" class="Action.TilesHomeController"> </bean> <!-- tiles页面解析器--> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass"> <value>org.springframework.web.servlet.view.tiles.TilesView</value> </property> </bean> <!-- tiles配置器--> <bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles.TilesConfigurer"> <property name="definitions"> <list> <value>/WEB-INF/train-def.xml</value> </list> </property> </bean> </beans>
运行/title.mvc （mvc是我自定义的扩展名）我们可以看到如下结果：
courseDetail title
this is from header
this is courseDetail
this is from footer
如果我们需要在每一个页面的header部分显示一些我们从数据库里读取的数值，我们可以在不同的控制器中加入访问数据库的代码，但这样显得很啰唆，因为header部门在每个页面都是公用的，也就是说不同的页面只有content部分不同，这样，我们就会有很多冗余代码，为了解决这个问题，我们可以使用spring为我们提供的ComponentControllerSupport
package Action; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import model.Student; import org.apache.struts.tiles.ComponentContext; import org.springframework.web.servlet.view.tiles.ComponentControllerSupport; public class HeaderTilesController extends ComponentControllerSupport { protected void doPerform(ComponentContext context, HttpServletRequest request, HttpServletResponse response) throws Exception { Student stu=new Student(); stu.setName("gaoxiang"); stu.setSex("male"); //tiles context中存放简单数据 context.putAttribute("name", stu.getName()); context.putAttribute("sex", stu.getSex()); //tiles context中存放对象 context.putAttribute("student", stu); //request中存放数据 request.setAttribute("requestname", stu.getName()+"-request"); request.setAttribute("requestsex", stu.getSex()+"-request"); } }
改写train-def.xml
<!DOCTYPE tiles-definitions PUBLIC "-//Apache Software Foundation//DTD Tiles Configuration//EN" "http://jakarta.apache.org/struts/dtds/tiles-config_1_1.dtd"> <tiles-definitions> <definition name="template" page="/tiles/mainTemplate.jsp"> <put name="title" value="default title"/> <put name="header" value=".header"/> <put name="content" value="/tiles/content.jsp"/> <put name="footer" value="/tiles/footer.jsp"/> </definition> <definition name="courseDetail" extends="template"> <put name="title" value="courseDetail title"/> <put name="content" value="/tiles/courseContent.jsp"/> </definition> <definition name=".header" page="/tiles/header.jsp" controllerClass="Action.HeaderTilesController"> </definition> </tiles-definitions>
改header.jsp
<%@ taglib uri="http://jakarta.apache.org/struts/tags-tiles" prefix="tiles" %>