我正在尝试设置一个骨架 Spring 3 MVC 项目,但是我很难获得要渲染的视图。我已按照mvc-basic示例项目和http://blog.springsource.com/2009/12/21/mvc-simplifications-in-spring-3-0/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Interface21TeamBlog+%28SpringSource+Team+Blog%29中所述的结构来设置 web.xml , app-config.xml 和< strong> mvc-config.xml 文件。控制器被调用,但当它到达查找视图并呈现它时,我得到 404错误。文件如下:
的web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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">
<!-- Handles all requests into the application -->
<servlet>
<servlet-name>myServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/app-config.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>myServlet</servlet-name>
<url-pattern>/app/*</url-pattern>
</servlet-mapping>
</web-app>
应用-config.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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- Scans the classpath of this application for @Components to deploy as beans -->
<context:component-scan base-package="com.myProject" />
<!-- Application Message Bundle -->
<bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="/WEB-INF/messages/messages" />
<property name="cacheSeconds" value="0" />
</bean>
<!-- Configures Spring MVC -->
<import resource="mvc-config.xml" />
</beans>
MVC-config.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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<!-- Configures the @Controller programming model -->
<mvc:annotation-driven />
<mvc:view-controller path="/app" view-name="welcome"/>
<!-- Configures Handler Interceptors -->
<mvc:interceptors>
<!-- Changes the locale when a 'locale' request parameter is sent; e.g. /?locale=de -->
<bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" />
</mvc:interceptors>
<!-- Saves a locale change using a cookie -->
<bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver" />
<!-- Resolves view names to protected .jsp resources within the /WEB-INF/views directory -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
在“Java Resources:src”中 - &gt; com.myProject - &gt; HelloWorldController.java 我有:
package com.myProject;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
@Controller
@RequestMapping(value="/helloworld")
public class HelloWorldController {
@RequestMapping(method=RequestMethod.GET)
public ModelAndView helloWorld() {
ModelAndView mav = new ModelAndView();
mav.setViewName("helloworld");
mav.addObject("message", "Hello World!");
return mav;
}
@RequestMapping(value="/Second", method = RequestMethod.GET)
public ModelAndView Second(){
ModelAndView mav = new ModelAndView();
mav.setViewName("Second");
mav.addObject("message", "Hello World!");
return mav;
}
}
并在 WebContent / WEB-INF / views 中我有:
WebContent (folder)
WEB-INF (folder)
views (folder)
helloworld (folder)
helloworld.jsp (.jsp view)
helloworld.jsp (.jsp view)
welcome.jsp (.jsp view)
这些观点在其中有直接的html。当我请求 http:// localhost:8080 / projectname / app 时,我正确地获取视图 - &gt; welcome.jsp 页面。但是,当我请求 http:// localhost:8080 / projectname / app / helloworld 或 http:// localhost:8080 / projectname / app / helloworld / 执行命中正确时控制器操作,但我得到 HTTP状态404 - /projectname/WEB-INF/views/helloworld.jsp
有人可以提出什么问题吗?
由于
答案 0 :(得分:1)
有一些问题。第一个是你只在你的web.xml中将/ app / * urls发送到Spring:
<url-pattern>/app/*</url-pattern>
如果请求映射是/ app / helloworld,那很好,但意味着/ helloworld甚至不会出现问题。您可能想要做的是使用urlrewrite过滤器将请求映射到/ app / *空间。
依赖于tuckey,然后将其添加到您的web.xml:
<filter>
<filter-name>UrlRewriteFilter</filter-name>
<filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>UrlRewriteFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
然后在WEB-INF目录中添加一个名为urlrewrite.xml的文件,其中包含:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 3.0//EN" "http://tuckey.org/res/dtds/urlrewrite3.0.dtd">
<urlrewrite default-match-type="wildcard">
<rule>
<from>/images/**</from>
<to>/images/$1</to>
</rule>
<rule>
<from>/scripts/**</from>
<to>/scripts/$1</to>
</rule>
<rule>
<from>/styles/**</from>
<to>/styles/$1</to>
</rule>
<rule>
<from>/**</from>
<to>/app/$1</to>
</rule>
<outbound-rule>
<from>/app/**</from>
<to>/$1</to>
</outbound-rule>
</urlrewrite>
之后,对/ helloworld的请求应该转到正确的位置。您可能也想要更改根视图控制器:
<mvc:view-controller path="/" view-name="welcome"/>
答案 1 :(得分:0)
看起来是因为您没有指定viewClass
属性。
你可以试试吗
<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>
由于这个
,它适用于欢迎页面<mvc:view-controller path="/app" view-name="welcome"/>
答案 2 :(得分:0)
我认为视图需要在views / helloworld.jsp中,而不是在views / helloworld / helloworld.jsp中
答案 3 :(得分:0)
您应将视图名称设置为
mav.setViewName("/helloWorld/helloWorld");
答案 4 :(得分:0)
您应该将“mvc-config”更改为yourname-servlet.xml“yourname应该与ur web.xml文件中的servlet名称相匹配,在大小写中应该是myservlet-servlet.xml,因为spring dispatcher servlet需要查找WEB-INF文件夹中带有“-servlet”扩展名文件名的文件。 在你的myservlet-servlet.xml文件中为后缀部分,你应该这样说:“WEB-INF / yourfoldername(例如视图)”,直到你的控制器查找你在你的控制器方法中提到的你的视图名称(例如ModelAndView(“你好“))。
答案 5 :(得分:0)
您有以下配置:
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
并且您的控制器返回干净的视图名称。
运行应用程序时,验证 / WEB-INF / views / 中的视图文件是否存在。