public class ServletWrappingController extends AbstractController implements BeanNameAware, InitializingBean, DisposableBean
ServletForwardingController
).
Useful to invoke an existing servlet via Spring's dispatching infrastructure, for example to apply Spring HandlerInterceptors to its requests.
Note that Struts has a special requirement in that it parses web.xml
to find its servlet mapping. Therefore, you need to specify the DispatcherServlet's
servlet name as "servletName" on this controller, so that Struts finds the
DispatcherServlet's mapping (thinking that it refers to the ActionServlet).
Example: a DispatcherServlet XML context, forwarding "*.do" to the Struts ActionServlet wrapped by a ServletWrappingController. All such requests will go through the configured HandlerInterceptor chain (e.g. an OpenSessionInViewInterceptor). From the Struts point of view, everything will work as usual.
<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <property name="interceptors"> <list> <ref bean="openSessionInViewInterceptor"/> </list> </property> <property name="mappings"> <props> <prop key="*.do">strutsWrappingController</prop> </props> </property> </bean> <bean id="strutsWrappingController" class="org.springframework.web.servlet.mvc.ServletWrappingController"> <property name="servletClass"> <value>org.apache.struts.action.ActionServlet</value> </property> <property name="servletName"> <value>action</value> </property> <property name="initParameters"> <props> <prop key="config">/WEB-INF/struts-config.xml</prop> </props> </property> </bean>
ServletForwardingController
Modifier and Type | Class and Description |
---|---|
private class |
ServletWrappingController.DelegatingServletConfig
Internal implementation of the ServletConfig interface, to be passed
to the wrapped servlet.
|
Modifier and Type | Field and Description |
---|---|
private java.lang.String |
beanName |
private java.util.Properties |
initParameters |
private java.lang.Class<? extends Servlet> |
servletClass |
private Servlet |
servletInstance |
private java.lang.String |
servletName |
HEADER_CACHE_CONTROL, METHOD_GET, METHOD_HEAD, METHOD_POST
logger
Constructor and Description |
---|
ServletWrappingController() |
Modifier and Type | Method and Description |
---|---|
void |
afterPropertiesSet()
Initialize the wrapped Servlet instance.
|
void |
destroy()
Destroy the wrapped Servlet instance.
|
protected ModelAndView |
handleRequestInternal(HttpServletRequest request,
HttpServletResponse response)
Invoke the wrapped Servlet instance.
|
void |
setBeanName(java.lang.String name)
Set the name of the bean in the bean factory that created this bean.
|
void |
setInitParameters(java.util.Properties initParameters)
Specify init parameters for the servlet to wrap,
as name-value pairs.
|
void |
setServletClass(java.lang.Class<? extends Servlet> servletClass)
Set the class of the servlet to wrap.
|
void |
setServletName(java.lang.String servletName)
Set the name of the servlet to wrap.
|
handleRequest, isSynchronizeOnSession, setSynchronizeOnSession
applyCacheControl, applyCacheSeconds, applyCacheSeconds, cacheForSeconds, cacheForSeconds, checkAndPrepare, checkAndPrepare, checkRequest, getAllowHeader, getCacheControl, getCacheSeconds, getSupportedMethods, getVaryByRequestHeaders, isAlwaysMustRevalidate, isRequireSession, isUseCacheControlHeader, isUseCacheControlNoStore, isUseExpiresHeader, prepareResponse, preventCaching, setAlwaysMustRevalidate, setCacheControl, setCacheSeconds, setRequireSession, setSupportedMethods, setUseCacheControlHeader, setUseCacheControlNoStore, setUseExpiresHeader, setVaryByRequestHeaders
getServletContext, getTempDir, getWebApplicationContext, initApplicationContext, initServletContext, isContextRequired, setServletContext
getApplicationContext, getMessageSourceAccessor, initApplicationContext, requiredContextClass, setApplicationContext
private java.lang.Class<? extends Servlet> servletClass
private java.lang.String servletName
private java.util.Properties initParameters
private java.lang.String beanName
private Servlet servletInstance
public void setServletClass(java.lang.Class<? extends Servlet> servletClass)
javax.servlet.Servlet
.javax.servlet.Servlet
public void setServletName(java.lang.String servletName)
public void setInitParameters(java.util.Properties initParameters)
public void setBeanName(java.lang.String name)
BeanNameAware
Invoked after population of normal bean properties but before an
init callback such as InitializingBean.afterPropertiesSet()
or a custom init-method.
setBeanName
in interface BeanNameAware
name
- the name of the bean in the factory.
Note that this name is the actual bean name used in the factory, which may
differ from the originally specified name: in particular for inner bean
names, the actual bean name might have been made unique through appending
"#..." suffixes. Use the BeanFactoryUtils.originalBeanName(String)
method to extract the original bean name (without suffix), if desired.public void afterPropertiesSet() throws java.lang.Exception
afterPropertiesSet
in interface InitializingBean
java.lang.Exception
- in the event of misconfiguration (such
as failure to set an essential property) or if initialization fails.javax.servlet.Servlet#init(javax.servlet.ServletConfig)
protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws java.lang.Exception
handleRequestInternal
in class AbstractController
java.lang.Exception
javax.servlet.Servlet#service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
public void destroy()
destroy
in interface DisposableBean
javax.servlet.Servlet#destroy()