Java PortletContext.getRequestDispatcher方法代码示例

import javax.portlet.PortletContext; //导入方法依赖的package包/类
/**
 * Serve the resource as specified in the given request to the given response,
 * using the PortletContext's request dispatcher.
 * <p>This is roughly equivalent to Portlet 2.0 GenericPortlet.
 * @param request the current resource request
 * @param response the current resource response
 * @param context the current Portlet's PortletContext
 * @throws PortletException propagated from Portlet API's forward method
 * @throws IOException propagated from Portlet API's forward method
 */
public static void serveResource(ResourceRequest request, ResourceResponse response, PortletContext context)
		throws PortletException, IOException {

	String id = request.getResourceID();
	if (id != null) {
		if (!PortletUtils.isProtectedResource(id)) {
			PortletRequestDispatcher rd = context.getRequestDispatcher(id);
			if (rd != null) {
				rd.forward(request, response);
				return;
			}
		}
		response.setProperty(ResourceResponse.HTTP_STATUS_CODE, "404");
	}
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
protected TestResult checkParameters(PortletContext context,
                                     PortletRequest request,
                                     PortletResponse response)
throws IOException, PortletException {

	// Dispatch to the companion servlet: call checkParameters().
	StringBuffer buffer = new StringBuffer();
	buffer.append(SERVLET_PATH).append("?")
			.append(KEY_TARGET).append("=").append(TARGET_PARAMS)
			.append("&").append(KEY_A).append("=").append(VALUE_A)
			.append("&").append(KEY_B).append("=").append(VALUE_B);

	if (LOG.isDebugEnabled()) {
		LOG.debug("Dispatching to: " + buffer.toString());
	}
    PortletRequestDispatcher dispatcher = context.getRequestDispatcher(
    		buffer.toString());
    dispatcher.include((RenderRequest) request, (RenderResponse) response);

	// Retrieve test result returned by the companion servlet.
    TestResult result = (TestResult) request.getAttribute(RESULT_KEY);
	request.removeAttribute(RESULT_KEY);
    return result;
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
protected TestResult checkSameNameParameter(PortletContext context,
                                            PortletRequest request,
                                            PortletResponse response)
throws IOException, PortletException {

	// Dispatch to the companion servlet: call checkSameNameParameter().
	StringBuffer buffer = new StringBuffer();
	buffer.append(SERVLET_PATH).append("?")
			.append(KEY_TARGET).append("=").append(TARGET_SAME_NAME_PARAM)
			.append("&").append(KEY_C).append("=").append(VALUE_C1)
			.append("&").append(KEY_C).append("=").append(VALUE_C2)
			.append("&").append(KEY_C).append("=").append(VALUE_C3);

	if (LOG.isDebugEnabled()) {
		LOG.debug("Dispatching to: " + buffer.toString());
	}
	PortletRequestDispatcher dispatcher = context.getRequestDispatcher(
			buffer.toString());
	dispatcher.include((RenderRequest) request, (RenderResponse) response);

	// Retrieve test result returned by the companion servlet.
    TestResult result = (TestResult) request.getAttribute(RESULT_KEY);
	request.removeAttribute(RESULT_KEY);
	return result;
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
protected TestResult checkAddedSameNameParameter(PortletContext context,
                                                 PortletRequest request,
                                                 PortletResponse response)
throws IOException, PortletException {
	// Dispatch to the companion servlet: call checkAddedSameNameParameter().
	StringBuffer buffer = new StringBuffer();
	buffer.append(SERVLET_PATH).append("?")
			.append(KEY_TARGET).append("=").append(TARGET_ADDED_SAME_NAME_PARAM)
			.append("&").append(KEY_RENDER).append("=").append(VALUE_ADDED1)
			.append("&").append(KEY_RENDER).append("=").append(VALUE_ADDED2);

	if (LOG.isDebugEnabled()) {
		LOG.debug("Dispatching to: " + buffer.toString());
	}
	PortletRequestDispatcher dispatcher = context.getRequestDispatcher(
			buffer.toString());
	dispatcher.include((RenderRequest) request, (RenderResponse) response);

	// Retrieve test result returned by the companion servlet.
    TestResult result = (TestResult) request.getAttribute(RESULT_KEY);
	request.removeAttribute(RESULT_KEY);
	return result;
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
protected TestResult checkInvalidParameters(PortletContext context,
                                            PortletRequest request,
                                            PortletResponse response)
throws IOException, PortletException {

	// Dispatch to the companion servlet: call checkInvalidParameters().
	StringBuffer buffer = new StringBuffer();
	buffer.append(SERVLET_PATH).append("?")
			.append(KEY_TARGET).append("=").append(TARGET_INVALID_PARAMS)
			.append("&").append(KEY_A)
			.append("&").append(KEY_B).append("=").append(VALUE_B)
			.append("&").append(KEY_C).append("=");
	if (LOG.isDebugEnabled()) {
		LOG.debug("Dispatching to: " + buffer.toString());
	}
	PortletRequestDispatcher dispatcher = context.getRequestDispatcher(
			buffer.toString());
	dispatcher.include((RenderRequest) request, (RenderResponse) response);

	// Retrieve test result returned by the companion servlet.
    TestResult result = (TestResult) request.getAttribute(RESULT_KEY);
	request.removeAttribute(RESULT_KEY);
	return result;
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
public static void sendToJSP(PortletContext pContext, 
		RenderRequest request, RenderResponse response,
		String jspPage) throws PortletException {
	response.setContentType(request.getResponseContentType());
	if (jspPage != null && jspPage.length() != 0) {
		try {
			PortletRequestDispatcher dispatcher = pContext
				.getRequestDispatcher(jspPage);
			dispatcher.include(request, response);
		} catch (IOException e) {
			throw new PortletException("Sakai Dispatch unabble to use "
					+ jspPage, e);
		}
	}
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
private TestResult doCheckIncludedAttribute(PortletContext context,
                                            PortletRequest request,
                                            PortletResponse response,
                                            String pathInfo)
throws IOException, PortletException {
	
	// Save expected values as request attributes.
	String contextPath = request.getContextPath();
	String requestUri = contextPath + SERVLET_PATH + pathInfo;
	request.setAttribute(EXPECTED_REQUEST_URI, requestUri);
	request.setAttribute(EXPECTED_CONTEXT_PATH, contextPath);

	// Dispatch to the companion servlet: call checkParameters().
	StringBuffer buffer = new StringBuffer();
	buffer.append(SERVLET_PATH).append(pathInfo).append("?")
			.append(QUERY_STRING);
	if (LOG.isDebugEnabled()) {
		LOG.debug("Dispatching to: " + buffer.toString());
	}
	PortletRequestDispatcher dispatcher = context.getRequestDispatcher(
			buffer.toString());
	dispatcher.include((RenderRequest) request, (RenderResponse) response);
	
	// Retrieve test result returned by the companion servlet.
	TestResult result = (TestResult) request.getAttribute(RESULT_KEY);
	request.removeAttribute(RESULT_KEY);
	request.removeAttribute(EXPECTED_REQUEST_URI);
	request.removeAttribute(EXPECTED_CONTEXT_PATH);
	return result;
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
public void doView(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
    PortletContext context = getPortletContext();
    PortletRequestDispatcher requestDispatcher =
    		context.getRequestDispatcher(getViewPage());
    requestDispatcher.include(request, response);
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
protected void doEdit(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
    PortletContext context = getPortletContext();
    PortletRequestDispatcher requestDispatcher =
    		context.getRequestDispatcher(getEditPage());
    requestDispatcher.include(request, response);
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
protected void doHelp(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
	PortletContext context = getPortletContext();
	PortletRequestDispatcher requestDispatcher =
			context.getRequestDispatcher(getHelpPage(request));
	requestDispatcher.include(request, response);
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
public void doView(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
	response.setContentType("text/html");
    PortletContext context = getPortletContext();
    PortletRequestDispatcher requestDispatcher =
    		context.getRequestDispatcher(VIEW_PAGE);
    requestDispatcher.include(request, response);
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
protected void doEdit(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
	response.setContentType("text/html");
    PortletContext context = getPortletContext();
    PortletRequestDispatcher requestDispatcher =
    		context.getRequestDispatcher(EDIT_PAGE);
    requestDispatcher.include(request, response);
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
protected void doHelp(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
	response.setContentType("text/html");
	PortletContext context = getPortletContext();
	PortletRequestDispatcher requestDispatcher =
			context.getRequestDispatcher(HELP_PAGE);
	requestDispatcher.include(request, response);
}
 

import javax.portlet.PortletContext; //导入方法依赖的package包/类
protected void include(String path, PortletRequest portletRequest,
		PortletResponse portletResponse) throws IOException,
		PortletException {

	PortletContext portletContext = getPortletContext();

	PortletRequestDispatcher portletRequestDispatcher = portletContext
			.getRequestDispatcher(path);

	if (portletRequestDispatcher == null) {
		_log.error(path + " is not a valid include");
	} else {
		portletRequestDispatcher.include(portletRequest, portletResponse);
	}
}