Spring MVC和Freemarker /速度

Question

我在Freemarker和Velocity的視圖解析器上有問題（不能同時運行）-兩者都看不到Spring的會話bean。 Spring的InternalResourceViewResolver運作良好。

一些代碼：

<context:component-scan base-package="com.revicostudio.web" />
<mvc:annotation-driven />

<bean id="userSession" class="com.revicostudio.web.session.UserSession" scope="session" /> 

<bean id="velocityConfig" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">
    <property name="resourceLoaderPath" value="/WEB-INF/jsp/" />
</bean>

<bean id="viewResolver" class="org.springframework.web.servlet.view.velocity.VelocityLayoutViewResolver">
    <property name="cache" value="true" />
    <property name="prefix" value="" />
    <property name="layoutUrl" value="layout.jsp"/>
    <property name="suffix" value=".jsp" />
    <property name="exposeSessionAttributes" value="true" />
    <property name="exposeRequestAttributes" value="true" />
    <property name="requestContextAttribute" value="rc" />
</bean>

在jsp中：

${userSession}<br /> <!-- Null if Freemarker's view resolver active, session object if Spring's resolver active -->
${error}<br /> <!-- Normal request attribute, put to map, that works good in both resolvers -->

的IndexController：

@Controller
@RequestMapping("/index")
public class IndexController {
    @RequestMapping(method=RequestMethod.GET)
    public String getIndex(Model model) {
        return "index";
    }

    @ModelAttribute("userRegisterCredentials")
    public UserRegisterCredentials getUserRegisterCredentials() {
        return new UserRegisterCredentials();
    }

    @ModelAttribute("userLoginCredentials")
    public UserLoginCredentials getUserLoginCredentials() {
        return new UserLoginCredentials();
    }
}

Answer 1

1.您應該對控制器進行注釋，以指出應在會話中公開哪個模型屬性。2.在freemarker中，對會話attrs的訪問由freemarker會話包裝器完成。

以下簡短示例基於您的代碼：

@Controller
@SessionAttributes("userRegisterCredentials")
@RequestMapping("/index")
public class IndexController {
    @RequestMapping(method=RequestMethod.GET)
    public String getIndex(Model model) {
        return "index";
    }

    @ModelAttribute("userRegisterCredentials")
    public UserRegisterCredentials getUserRegisterCredentials() {
        return new UserRegisterCredentials();
    }    

}

在ftl方面：$ {Session.userRegisterCredentials.someStringField}