今天试了下spring mvc遇到个很奇怪的事情,按照书上配置访问时总是出现如下警告:
org.springframework.web.servlet.DispatcherServlet noHandlerFound
警告: No mapping found for HTTP request with URI [/myspring/WEB-INF/jsp/hello.jsp] in DispatcherServlet with name 'spring'
web.xml
Xml代码
1. <servlet>
2. <servlet-name>spring</servlet-name>
3. <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
4. <init-param>
5. <param-name>contextConfigLocation</param-name>
6. <param-value>/WEB-INF/springContext.xml</param-value>
7. </init-param>
8. </servlet>
9.
10. <servlet-mapping>
11. <servlet-name>spring</servlet-name>
12. <url-pattern>/*</url-pattern>
13. </servlet-mapping>
springContext.xml
Xml代码
1. <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
2. <property name="prefix" value="/WEB-INF/jsp/" />
3. <property name="suffix" value=".jsp" />
4. </bean>
5.
6. <bean name="/hc" class="com.hj.controllers.HelloController"/>
HelloController.java
Java代码
@Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { return new ModelAndView("hello"); }
在项目/WEB-INF/jsp目录下防止hello.jsp文件。按照上述配置访问http://localhost:8081/myspring /hc,应该是出现hello.jsp内容才对,但是却出现了一开始提到的警告。我搜索了许多地方,结果在一老外的提供中找到了同样的问题(http: //forum.springsource.org/archive/index.php/t-71263.html),解决方法老外也说明了,只是不知 道为什么。
就是将web.xml中
Xml代码
1. <servlet-mapping>
2. <servlet-name>spring</servlet-name>
3. /*</url-pattern>
4. </servlet-mapping>
改成
Java代码
1. <servlet-mapping>
2. <servlet-name>spring</servlet-name>
3. /</url-pattern>
4. </servlet-mapping>
spring MVC的困惑--url-pattern的/和/*有区别