org.springframework.web.context.request.WebRequestInterceptor#org.springframework.web.servlet.handler.WebRequestHandlerInterceptorAdapter源码实例Demo

/**
 * Adds the provided {@link WebRequestInterceptor}.
 * @param interceptor the interceptor to add
 * @return an {@link InterceptorRegistration} that allows you optionally configure the
 * registered interceptor further for example adding URL patterns it should apply to.
 */
public InterceptorRegistration addWebRequestInterceptor(WebRequestInterceptor interceptor) {
	WebRequestHandlerInterceptorAdapter adapted = new WebRequestHandlerInterceptorAdapter(interceptor);
	InterceptorRegistration registration = new InterceptorRegistration(adapted);
	this.registrations.add(registration);
	return registration;
}
 

private void verifyWebInterceptor(HandlerInterceptor interceptor,
		TestWebRequestInterceptor webInterceptor) throws Exception {

	assertTrue(interceptor instanceof WebRequestHandlerInterceptorAdapter);
	interceptor.preHandle(this.request, this.response, null);
	assertTrue(webInterceptor.preHandleInvoked);
}
 

/**
 * Adds the provided {@link WebRequestInterceptor}.
 * @param interceptor the interceptor to add
 * @return an {@link InterceptorRegistration} that allows you optionally configure the
 * registered interceptor further for example adding URL patterns it should apply to.
 */
public InterceptorRegistration addWebRequestInterceptor(WebRequestInterceptor interceptor) {
	WebRequestHandlerInterceptorAdapter adapted = new WebRequestHandlerInterceptorAdapter(interceptor);
	InterceptorRegistration registration = new InterceptorRegistration(adapted);
	this.registrations.add(registration);
	return registration;
}
 

private void verifyWebInterceptor(HandlerInterceptor interceptor,
		TestWebRequestInterceptor webInterceptor) throws Exception {

	assertTrue(interceptor instanceof WebRequestHandlerInterceptorAdapter);
	interceptor.preHandle(this.request, this.response, null);
	assertTrue(webInterceptor.preHandleInvoked);
}
 

/**
 * Adds the provided {@link WebRequestInterceptor}.
 * @param interceptor the interceptor to add
 * @return An {@link InterceptorRegistration} that allows you optionally configure the
 * registered interceptor further for example adding URL patterns it should apply to.
 */
public InterceptorRegistration addWebRequestInterceptor(WebRequestInterceptor interceptor) {
	WebRequestHandlerInterceptorAdapter adapted = new WebRequestHandlerInterceptorAdapter(interceptor);
	InterceptorRegistration registration = new InterceptorRegistration(adapted);
	this.registrations.add(registration);
	return registration;
}
 

/**
 * Adds the provided {@link WebRequestInterceptor}.
 * @param interceptor the interceptor to add
 * @return An {@link InterceptorRegistration} that allows you optionally configure the
 * registered interceptor further for example adding URL patterns it should apply to.
 */
public InterceptorRegistration addWebRequestInterceptor(WebRequestInterceptor interceptor) {
	WebRequestHandlerInterceptorAdapter adapted = new WebRequestHandlerInterceptorAdapter(interceptor);
	InterceptorRegistration registration = new InterceptorRegistration(adapted);
	registrations.add(registration);
	return registration;
}
 

@Test
public void testInterceptors() throws Exception {
	loadBeanDefinitions("mvc-config-interceptors.xml", 21);

	RequestMappingHandlerMapping mapping = appContext.getBean(RequestMappingHandlerMapping.class);
	assertNotNull(mapping);
	mapping.setDefaultHandler(handlerMethod);

	MockHttpServletRequest request = new MockHttpServletRequest("GET", "/");
	request.setRequestURI("/accounts/12345");
	request.addParameter("locale", "en");
	request.addParameter("theme", "green");

	HandlerExecutionChain chain = mapping.getHandler(request);
	assertEquals(5, chain.getInterceptors().length);
	assertTrue(chain.getInterceptors()[0] instanceof ConversionServiceExposingInterceptor);
	assertTrue(chain.getInterceptors()[1] instanceof LocaleChangeInterceptor);
	assertTrue(chain.getInterceptors()[2] instanceof WebRequestHandlerInterceptorAdapter);
	assertTrue(chain.getInterceptors()[3] instanceof ThemeChangeInterceptor);
	assertTrue(chain.getInterceptors()[4] instanceof UserRoleAuthorizationInterceptor);

	request.setRequestURI("/admin/users");
	chain = mapping.getHandler(request);
	assertEquals(3, chain.getInterceptors().length);

	request.setRequestURI("/logged/accounts/12345");
	chain = mapping.getHandler(request);
	assertEquals(5, chain.getInterceptors().length);
	assertTrue(chain.getInterceptors()[4] instanceof WebRequestHandlerInterceptorAdapter);

	request.setRequestURI("/foo/logged");
	chain = mapping.getHandler(request);
	assertEquals(5, chain.getInterceptors().length);
	assertTrue(chain.getInterceptors()[4] instanceof WebRequestHandlerInterceptorAdapter);
}
 

private void verifyWebInterceptor(HandlerInterceptor interceptor, TestWebRequestInterceptor webInterceptor) throws Exception {
	assertTrue(interceptor instanceof WebRequestHandlerInterceptorAdapter);
	interceptor.preHandle(this.request, this.response, null);
	assertTrue(webInterceptor.preHandleInvoked);
}