Java HandlerAdapter类代码示例

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
private List<HandlerAdapter> extractAdapters() {
	List<HandlerAdapter> list = new ArrayList<HandlerAdapter>();
	list.addAll(this.beanFactory.getBeansOfType(HandlerAdapter.class).values());
	list.remove(this);
	AnnotationAwareOrderComparator.sort(list);
	return list;
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
@Override
public boolean supports(Object handler) {
	if (this.adapters == null) {
		this.adapters = extractAdapters();
	}
	for (HandlerAdapter mapping : this.adapters) {
		if (mapping.supports(handler)) {
			return true;
		}
	}
	return false;
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
@Override
public ModelAndView handle(HttpServletRequest request,
		HttpServletResponse response, Object handler) throws Exception {
	if (this.adapters == null) {
		this.adapters = extractAdapters();
	}
	for (HandlerAdapter mapping : this.adapters) {
		if (mapping.supports(handler)) {
			return mapping.handle(request, response, handler);
		}
	}
	return null;
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
@Override
public long getLastModified(HttpServletRequest request, Object handler) {
	if (this.adapters == null) {
		this.adapters = extractAdapters();
	}
	for (HandlerAdapter mapping : this.adapters) {
		if (mapping.supports(handler)) {
			return mapping.getLastModified(request, handler);
		}
	}
	return 0;
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
@Test
public void handlerAdaptersCreated() throws Exception {
	load();
	assertThat(this.context.getBeanNamesForType(HandlerAdapter.class).length)
			.isEqualTo(3);
	assertThat(this.context.getBean(RequestMappingHandlerAdapter.class)
			.getMessageConverters()).isNotEmpty()
					.isEqualTo(this.context.getBean(HttpMessageConverters.class)
							.getConverters());
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
@Override
protected HandlerAdapter getHandlerAdapter(Object handler) throws ServletException {
	if (handler instanceof HttpRequestHandler) {
		return new HttpRequestHandlerAdapter();
	} else if (handler instanceof Controller) {
		Object unwrappedHandler = ClassLoaderUtils.unwrapFromProxy(handler);
		if (unwrappedHandler instanceof CXFServletControllerAdapter) {
			// TODO this just seems weird as this controller is initially null when it's created, does there need to be some synchronization here?
			((CXFServletControllerAdapter)unwrappedHandler).setController(cxfServletController);
		}			
		return new SimpleControllerHandlerAdapter();
	}
	throw new RiceRuntimeException("handler of type " + handler.getClass().getName() + " is not known and can't be used by " + KSBDispatcherServlet.class.getName());
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
@Test
public void handlerAdaptersCreated() throws Exception {
	load();
	assertEquals(3, this.context.getBeanNamesForType(HandlerAdapter.class).length);
	assertFalse(this.context.getBean(RequestMappingHandlerAdapter.class)
			.getMessageConverters().isEmpty());
	assertEquals(this.context.getBean(HttpMessageConverters.class).getConverters(),
			this.context.getBean(RequestMappingHandlerAdapter.class)
					.getMessageConverters());
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
/**
 * @see HandlerInterceptor#preHandle(HttpServletRequest,HttpServletResponse, Object)
 */
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception
{

    if (request.getParameter(TableTagParameters.PARAMETER_EXPORTING) == null)
    {
        if (log.isDebugEnabled())
        {
            log.debug(Messages.getString("ResponseOverrideFilter.parameternotfound")); //$NON-NLS-1$
        }
        // don't intercept!
        return true;
    }

    BufferedResponseWrapper wrapper = new BufferedResponseWrapper13Impl(response);

    Map<String, Boolean> contentBean = new HashMap<String, Boolean>(4);
    if (buffer)
    {
        contentBean.put(TableTagParameters.BEAN_BUFFER, Boolean.TRUE);
    }
    request.setAttribute(TableTag.FILTER_CONTENT_OVERRIDE_BODY, contentBean);

    if (log.isDebugEnabled())
    {
        log.debug("handler is " + handler);
    }

    HandlerAdapter handlerAdaptor = new SimpleControllerHandlerAdapter();
    handlerAdaptor.handle(request, wrapper, handler);

    ExportDelegate.writeExport(response, request, wrapper);

    return false;
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
@Bean
public HandlerAdapter handlerAdapter() {
	return new RequestMappingHandlerAdapter();
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
@Bean
public HandlerAdapter handlerAdapter() {
    return new RequestMappingHandlerAdapter();
}
 

import org.springframework.web.servlet.HandlerAdapter; //导入依赖的package包/类
@Bean
HandlerAdapter handler(){
	RequestMappingHandlerAdapter a = new RequestMappingHandlerAdapter();
	return a;
}