Example usage for javax.servlet RequestDispatcher include

Introduction

In this page you can find the example usage for javax.servlet RequestDispatcher include.

Prototype

public void include(ServletRequest request, ServletResponse response) throws ServletException, IOException;

Source Link

Document

Includes the content of a resource (servlet, JSP page, HTML file) in the response.

Usage

From source file:com.util.ConvertJspToStringHtml.java

public static String generateHtml(String url, HttpServletRequest request, HttpServletResponse response) {
    String html = null;/*from  www .  j  a v a  2s .c om*/
    try {
        BufferedHttpResponseWrapper wrapper = new BufferedHttpResponseWrapper(response);
        ServletContext context = request.getSession().getServletContext();
        String urlEncode = response.encodeRedirectURL(url);
        RequestDispatcher dispatcher = context.getRequestDispatcher(urlEncode);
        dispatcher.include(request, wrapper);
        //            html = ASCII2Unicode(StringEscapeUtils.unescapeHtml(wrapper.getOutput()));

        html = html.replaceAll("\\r\\n|\\r|\\n", "");
        html = html.replaceAll(" ", "");
    } catch (Exception e) {
        System.err.println(e.getMessage());
    }
    return html;
}

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From source file:com.adobe.acs.commons.util.ResourceDataUtil.java

public static String getIncludeAsString(final String path, final SlingHttpServletRequest slingRequest,
        final SlingHttpServletResponse slingResponse) {
    StringWriterResponse responseWrapper = null;

    try {//from w w w .ja va 2 s.  com
        responseWrapper = new StringWriterResponse(slingResponse);
        final RequestDispatcher requestDispatcher = slingRequest.getRequestDispatcher(path);

        requestDispatcher.include(slingRequest, responseWrapper);

        return StringUtils.stripToNull(responseWrapper.getString());
    } catch (Exception ex) {
        log.error("Error creating the String representation for: " + path, ex);
    } finally {
        if (responseWrapper != null) {
            responseWrapper.clearWriter();
        }
    }

    return null;
}

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From source file:com.liferay.portal.struts.StrutsUtil.java

public static void include(String uri, ServletContext ctx, HttpServletRequest req, HttpServletResponse res)
        throws ServletException {

    String path = Constants.TEXT_HTML_DIR + uri;
    if (BrowserSniffer.is_wml(req)) {
        path = Constants.TEXT_WML_DIR + uri;
    }/* www. ja  v a 2 s. c om*/

    ServletContext portalCtx = ctx.getContext(PropsUtil.get(PropsUtil.PORTAL_CTX));
    if (portalCtx == null) {
        portalCtx = ctx;
    }

    RequestDispatcher rd = portalCtx.getRequestDispatcher(path);

    try {
        rd.include(req, res);
    } catch (IOException ioe) {
    }
}

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From source file:org.entando.entando.aps.system.services.controller.executor.AbstractWidgetExecutorService.java

protected static String extractJspOutput(RequestContext reqCtx, String jspPath)
        throws ServletException, IOException {
    HttpServletRequest request = reqCtx.getRequest();
    HttpServletResponse response = reqCtx.getResponse();
    BufferedHttpResponseWrapper wrapper = new BufferedHttpResponseWrapper(response);
    ServletContext context = request.getSession().getServletContext();
    String url = response.encodeRedirectURL(jspPath);
    RequestDispatcher dispatcher = context.getRequestDispatcher(url);
    dispatcher.include(request, wrapper);
    return wrapper.getOutput();
}

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From source file:com.netspective.sparx.util.HttpUtils.java

public static void includeServletResourceContent(Writer writer, HttpServletValueContext vc, String includePath,
        String valueContextAttrName) throws IOException, ServletException {
    ServletRequest request = vc.getRequest();
    ServletResponse response = vc.getResponse();

    RequestDispatcher rd = request.getRequestDispatcher(includePath);

    if (writer != response.getWriter())
        response = new AlternateOutputDestServletResponse(writer, response);

    request.setAttribute(valueContextAttrName, vc);
    rd.include(request, response);
    request.removeAttribute(valueContextAttrName);
}

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From source file:com.act.web.includeservletasstring.IncludeServletAsString.java

static public String invokeServletAndReturnAsString(String url, HttpServletRequest servletRequest,
        HttpServletResponse servletResponse) throws IOException, ServletException {

    if (log.isDebugEnabled()) {
        log.debug("Including url \"" + url + "\"...");
    }//  w w w  .  j a  v  a2s  . c o m

    RequestDispatcher requestDispatcher = servletRequest.getRequestDispatcher(url);

    if (requestDispatcher == null) {
        IllegalArgumentException iae = new IllegalArgumentException(
                "Failed to get RequestDispatcher for url: " + url);
        log.error(iae.getMessage(), iae);
        throw iae;
    }

    BufferedResponse bufferedResponse = new BufferedResponse(servletResponse);

    requestDispatcher.include(servletRequest, bufferedResponse);

    byte[] buffer = bufferedResponse.getBufferAsByteArray();
    if (log.isDebugEnabled()) {
        log.debug("Buffer returned with " + buffer.length + " bytes.");
    }

    String bufferString = new String(buffer, servletResponse.getCharacterEncoding());

    return bufferString;
}

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From source file:org.apache.struts2.components.Include.java

public static void include(String aResult, Writer writer, ServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    String resourcePath = getContextRelativePath(request, aResult);
    RequestDispatcher rd = request.getRequestDispatcher(resourcePath);

    if (rd == null) {
        throw new ServletException("Not a valid resource path:" + resourcePath);
    }/*from   ww w.j  a va2 s.  c o  m*/

    PageResponse pageResponse = new PageResponse(response);

    // Include the resource
    rd.include((HttpServletRequest) request, pageResponse);

    //write the response back to the JspWriter, using the correct encoding.
    String encoding = getEncoding();

    if (encoding != null) {
        //use the encoding specified in the property file
        pageResponse.getContent().writeTo(writer, encoding);
    } else {
        //use the platform specific encoding
        pageResponse.getContent().writeTo(writer, null);
    }
}

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From source file:org.dd4t.mvc.utils.RenderUtils.java

/**
 * Dispatch a url to a request dispatcher while buffering the output in a string
 * (and not directly to the response's writer).
 *///  w w w  . j  a v  a2 s  .c o  m
public static String dispatchBufferedRequest(final HttpServletRequest request,
        final HttpServletResponse response, final String url) throws ServletException, IOException {
    long time = System.currentTimeMillis();
    final RequestDispatcher dispatcher = request.getServletContext().getRequestDispatcher(url);
    final HttpServletResponse responseWrapper = new HttpServletResponseWrapper(response) {
        private CharArrayWriter output = new CharArrayWriter();

        @Override
        public String toString() {
            return output.toString();
        }

        @Override
        public PrintWriter getWriter() {
            return new PrintWriter(output);
        }
    };

    dispatcher.include(request, responseWrapper);
    time = System.currentTimeMillis() - time;
    LOG.debug("dispatchBufferedRequest {}, takes: {} ms.", url, time);
    return responseWrapper.toString();
}

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From source file:com.feilong.servlet.http.RequestUtil.java

/**
 *  {@link RequestDispatcher} ??????,????.
 * //  w  w w. j  a va 2  s .  c  o m
 * <p>
 * Includes the content of a resource (servlet, JSP page,HTML file) in the response. <br>
 * In essence, this method enables programmatic server-side includes.
 * </p>
 * 
 * <p>
 * :?Servlet????????,???.<br>
 * The {@link ServletResponse} object has its path elements and parameters remain unchanged from the caller's. <br>
 * The included servlet cannot change the response status code or set headers; any attempt to make a change is ignored.
 * </p>
 * 
 * <p>
 * The request and response parameters must be either the same objects as were passed to the calling servlet's service method or be
 * subclasses of the {@link ServletRequestWrapper} or {@link ServletResponseWrapper} classes that wrap them.
 * </p>
 * 
 * @param path
 *            the path
 * @param request
 *            a {@link ServletRequest} object,that contains the client's request
 * @param response
 *            a {@link ServletResponse} object,that contains the servlet's response
 * @see javax.servlet.RequestDispatcher#include(ServletRequest, ServletResponse)
 * @see "org.springframework.web.servlet.ResourceServlet"
 * @since 1.2.2
 */
public static void include(String path, HttpServletRequest request, HttpServletResponse response) {
    RequestDispatcher requestDispatcher = request.getRequestDispatcher(path);
    try {
        requestDispatcher.include(request, response);
    } catch (ServletException | IOException e) {
        LOGGER.error("", e);
        throw new RequestException(e);
    }
}

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From source file:com.redhat.rhn.frontend.taglibs.list.ListTagUtil.java

/**
 * Includes arbitrary _local_ url as content
 * @param ctx caller's page context/*from w w w. j  av  a2 s  .  c o  m*/
 * @param url local url
 * @throws JspException if something goes wrong
 *
 * Note: Local means Urls in the same application
 */
public static void includeContent(PageContext ctx, String url) throws JspException {
    HttpServletRequest request = (HttpServletRequest) ctx.getRequest();
    HttpServletResponse response = (HttpServletResponse) ctx.getResponse();
    RequestDispatcher rd = request.getSession(true).getServletContext().getRequestDispatcher(url);
    if (rd == null) {
        ListTagUtil.write(ctx, "<!-- " + url + " not found -->");
    } else {
        try {
            BufferedResponseWrapper wrapper = new BufferedResponseWrapper(response);
            rd.include(request, wrapper);
            wrapper.flush();
            ListTagUtil.write(ctx, wrapper.getBufferedOutput());
        } catch (Exception e) {
            throw new JspException(e);
        }
    }
}

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