我有 [web.xml] :
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/dispatcher-servlet.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
</web-app>
[dispatcher-servlet.xml] :
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">
<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<value>
/home=HomeController
</value>
</property>
</bean>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
<bean
class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="order" value="1"></property>
</bean>
<bean name="HomeController" class="com.spring.mvcc.HomeController"></bean>
</beans>
[HomeController.java]
@Controller
public class HomeController {
@RequestMapping({"/","/home"})
public String showHomePage(Map<String, Object> model){
model.put("spittles","works");
return "home";
}
}
[针对home.jsp]
<html>
<body>
<h2>HI!</h2>
</body>
</html>
当我尝试通过浏览器运行时(我将 Tomcat 端口更改为 9090 ): localhost:9090 // MyProject / home - 结果:什么都没发生。只是一个空白页面。
这有什么问题?
答案 0 :(得分:0)
Home.jsp是视图,你应该访问localhost:9090 // MyProject / home
答案 1 :(得分:0)
我认为问题出在你的配置上。 首先,您正在混合XML配置和注释配置,IMO通常不是一件好事(可能会引起读者和Spring的混淆)。其次,你没有告诉Spring在任何地方实际寻找注释配置。
我将做的是以下内容,
<强> [调度员的servlet] 强>
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
<bean
class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="order" value="1"></property>
</bean>
<context:component-scan base-package="your.package.here" />
<mvc:annotation-driven />
请注意我添加了两个名称空间(mvc和context),并删除了SimpleUrlHandlerMapping和HomeController bean。
但是魔法发生在最后两行,他们基本上“激活”了你的注释。
有一些方法可以在没有注释的情况下执行此操作,扩展MultiActionController可能是一种方式,但看起来你想要注释(并且基于Spring文档这些天它似乎是首选方式去。)
编辑:此外,默认情况下,DefaultAnnotationHandlerMapping从3.2开始不推荐使用。但是随着添加的命名空间,它似乎无用。我会删除它。