我試圖設置我的應用程序使用Spring,並且還提供了一個servlet圖像服務。我瀏覽過其他文章,發現類似的主題,但似乎無法讓我的配置正常工作。我使用Spring 3.0並使用tomcat 7作爲我的應用程序服務器。這裏是我的配置:帶圖像Servlet配置的Spring DispatcherServlet
<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/app-context.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Processes application requests -->
<servlet>
<servlet-name>viewer</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>imageServlet</servlet-name>
<servlet-class>com.billy.viewer.servlet.ImageServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/imageServlet/imgServlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>viewer</servlet-name>
<url-pattern>/web/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>imageServlet</servlet-name>
<url-pattern>/images/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>list.jsp</welcome-file>
</welcome-file-list>
的servlet-context.xml的
<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
<!-- Enables the Spring MVC @Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<!-- Imports user-defined @Controller beans that process client requests -->
<beans:import resource="controllers.xml" />
<beans:bean id="imageService" class="com.billy.viewer.service.ImageService"></beans:bean>
displayImage.jsp包含該體內
<img alt="Test" src="/images/${image.imageId}">
ImageServlet
public class ImageServlet extends HttpServlet {
private static final int DEFAULT_BUFFER_SIZE = 10240;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
int imageId = Integer.valueOf(request.getPathInfo().substring(1));
System.out.println("Image id: "+imageId);
}
}
我去我的網頁罰款,我可以看到img標籤上面的其它輸出,但圖像一直沒有出現。我沒有看到我的system.out.println圖像ID從servelt要麼。我的控制檯中沒有錯誤消息。
任何建議,將不勝感激。謝謝
感謝您的回覆。我刪除了imageServlet-context.xml。當我嘗試別的東西時,我在那裏。我想我誤解了其他一些帖子。我認爲,如果圖像位於本地文件系統的應用程序之外,需要通過servlet進行流式處理,並且我無法在同一請求中獲取頁面數據和圖像?如果我可以,那麼這個例子就容易多了。我已經在模型中使用byte []格式的圖像。 – blong824 2011-02-28 14:36:45
@ blong824是的,你是對的 - 你必須流式傳輸它。正如我所說 - 檢查螢火蟲。 – Bozho 2011-02-28 14:56:26
我檢查了螢火蟲,我也沒有看到任何錯誤。圖像的src是src =「/ image/2」。 – blong824 2011-03-01 01:45:53