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我正在开发一个简单的 spring mvc web 应用程序:一个简单的控制器:

public class LoginController extends MultiActionController {
    private final static String VIEW_LOGIN = "/login";


    public ModelAndView handleLogin(HttpServletRequest request,
            HttpServletResponse response){
        ModelAndView mv = new ModelAndView(VIEW_LOGIN);
        String prova = "PROVA123";
        mv.addObject(prova);
        return mv;
    }
}

一个简单的jsp页面:

<%@ taglib uri='http://java.sun.com/jsp/jstl/core' prefix='c'%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>   

    <title>Login - Gestione Studenti</title>

    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>

  <body>
    <p><c:out value="${prova}"/></p><br>
  </body>
</html>

这是调度程序 servlet xml 文件

<bean id="loginController" class="it.mediosoft.gestionestudenti.web.LoginController">
        <property name="methodNameResolver" ref="handlerResolver"/>
    </bean>

    <bean id="urlMapping"
        class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="/login.html">loginController</prop>
            </props>
        </property>
    </bean>

    <bean id="handlerResolver"
        class="org.springframework.web.servlet.mvc.multiaction.PropertiesMethodNameResolver">
        <property name="mappings">
            <props>
                <prop key="/login.html">handleLogin</prop>
            </props>
        </property>
    </bean>
     <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"><value>org.springframework.web.servlet.view.JstlView</value></property>
        <property name="prefix"><value>/WEB-INF/jsp/</value></property>
        <property name="suffix"><value>.jsp</value></property>
    </bean>

为什么在 login.jsp 中我不能使用 loginController 在 ModelAndView 返回的对象?"c:out" 不打印任何东西....有什么建议吗?

4

1 回答 1

0

尝试:

mv.addObject("prova",prova);

那应该可以解决您的问题

于 2012-10-25T13:37:35.933 回答