我正在spring mvc中编写一个简单的hello world程序,我将一个对象传递给视图。 JSP页面正常打开,但它没有获得在控制器中设置的值,并且eclipse控制台中没有错误。这是我的代码
@Controller
public class CncController {
String message = "Welcome to Spring MVC!";
@RequestMapping("/hello")
public ModelAndView showMessage(
@RequestParam(value = "name", required = false, defaultValue = "World") String name) {
System.out.println("in controller");
ModelAndView mv = new ModelAndView("helloworld");
mv.addObject("welcomeMessage", "Welcome to first page");
System.out.println(mv);
return mv;
}
}
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<mvc:annotation-driven />
<bean id="HandlerMapping" class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>
<context:component-scan base-package="com.cnc.cnccontroller" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
<property name="prefix">
<value>/WEB-INF/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>
JSP页面正确放在web-inf文件夹下。
它只是显示
Hello {welcomeMessage}
流程中是否有任何遗漏?
答案 0 :(得分:0)
您对Model对象的JSP引用应该在${}
之内。在您的情况下,它应该是“Hello ${welcomeMessage}
”