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我在Freemarker的viewResolver中遇到了問題 - 會話屬性沒有公開，因爲它在Spring的InternalResourceViewResolver中。未公開Spring MVC＆Freemarker會話屬性
現在，重要的部分是：當我從Spring的解析器轉換到Freemarker的解析器時，會話屬性不會被傳遞，它是空的。當Spring的解析器正在工作時，會話已通過。
我的代碼：
調度-servlet.xml中：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<bean id="userSession" class="com.revicostudio.web.session.UserSession" scope="session">
</bean>
<context:component-scan base-package="com.revicostudio.web" />
<mvc:annotation-driven />
<!--
<bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
<property name="templateLoaderPath" value="/WEB-INF/ftl/"/>
<property name="freemarkerVariables">
<map>
<entry key="xml_escape" value-ref="fmXmlEscape"/>
</map>
</property>
</bean>
<bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<property name="cache" value="true"/>
<property name="prefix" value=""/>
<property name="suffix" value=".jsp"/>
<property name="exposeSpringMacroHelpers" value="true"/>
<property name="exposeRequestAttributes" value="true"/>
<property name="allowRequestOverride" value="false" />
<property name="exposeSessionAttributes" value="true"/>
<property name="allowSessionOverride" value="false" />
<property name="exposePathVariables" value="true"/>
</bean>
<bean id="fmXmlEscape" class="freemarker.template.utility.XmlEscape"/>-->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/ftl/" />
<property name="suffix" value=".jsp" />
<property name="exposeContextBeansAsAttributes" value="true" />
</bean>
</beans>
LoginController.java：
@Controller
@RequestMapping("/login")
@SessionAttributes("userSession")
public class LoginController {
@Autowired
private UsersDatabaseService usersDatabaseService;
@RequestMapping(method = RequestMethod.POST)
public String login(
@ModelAttribute UserLoginCredentials userLoginCredentials,
UserSession userSession,
final RedirectAttributes redirectAttributes)
{
int failedLoginAttempts = userSession.getFailedLoginAttempts();
if (failedLoginAttempts < LoginConfig.maxLoginTries ||
System.currentTimeMillis()-userSession.getFailedLoginsWaitTimeStart() > LoginConfig.failedLoginsWaitMinutes*60*1000) {
if (usersDatabaseService.isValidPassword(userLoginCredentials.getUsername(), userLoginCredentials.getPassword())) {
userSession.setUser(usersDatabaseService.getUser(userLoginCredentials.getUsername()));
userSession.setFailedLoginsWaitTimeStart(System.currentTimeMillis());
}
else {
failedLoginAttempts++;
if (failedLoginAttempts == LoginConfig.maxLoginTries) {
redirectAttributes.addFlashAttribute("error",
"You've entered invalid username or password more than "
+ LoginConfig.maxLoginTries + " times. Try again in "
+ LoginConfig.failedLoginsWaitMinutes +" minutes.");
}
else {
redirectAttributes.addFlashAttribute("error", "Invalid username or password");
userSession.setFailedLoginAttempts(failedLoginAttempts);
System.out.println(failedLoginAttempts);
}
}
}
else {
redirectAttributes.addFlashAttribute("error",
"You've entered invalid username or password more than "
+ LoginConfig.maxLoginTries + " times. Try again in "
+ LoginConfig.failedLoginsWaitMinutes +" minutes.");
}
return "redirect:/";
}
}
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();
}
}
的index.jsp：
<body>
<!-- Code for Freemarker -->
<#if error??>
${error}
</#if>
<#if userSession??>
${userSession}
</#if>
<#if !(userSession??)>
b
</#if>
<!-- Code for JSTL -->
${userSession}