Example usage for javax.servlet ServletException ServletException

Introduction

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

Prototype


public ServletException(Throwable rootCause)

Source Link

Document

Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation.

Usage

From source file:EmailJndiServlet.java

public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, java.io.IOException {

    response.setContentType("text/html");
    java.io.PrintWriter out = response.getWriter();
    out.println("<html><head><title>Email message sender</title></head><body>");

    String to = request.getParameter("to");

    String from = request.getParameter("from");

    String subject = request.getParameter("subject");

    String emailContent = request.getParameter("emailContent");

    try {//from   w  w w .  j ava2s .com

        sendMessage(to, from, subject, emailContent);

    } catch (Exception exc) {

        throw new ServletException(exc.getMessage());

    }

    out.println("<h2>The message was sent successfully</h2></body></html>");

    out.println("</body></html>");
    out.close();

}

From source file:org.geowebcache.proxy.ProxyDispatcher.java

protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response)
        throws Exception {

    String methStr = request.getMethod();
    if (!methStr.equalsIgnoreCase("POST")) {
        throw new ServletException("Illegal method " + methStr + " for this proxy.");
    }//  w ww.  ja  va  2  s.c  o  m

    String urlStr = request.getParameter("url");
    if (urlStr == null || urlStr.length() == 0 || !urlStr.startsWith("http://")) {
        throw new ServletException("Expected url parameter.");
    }

    synchronized (this) {
        long time = System.currentTimeMillis();
        if (time - lastRequest < 1000) {
            throw new ServletException("Only one request per second please.");
        } else {
            lastRequest = time;
        }
    }

    log.info("Proxying request for " + request.getRemoteAddr() + " to " + " " + urlStr);

    String charEnc = request.getCharacterEncoding();
    if (charEnc == null) {
        charEnc = "UTF-8";
    }
    String decodedUrl = URLDecoder.decode(urlStr, charEnc);

    URL url = new URL(decodedUrl);
    HttpURLConnection wmsBackendCon = (HttpURLConnection) url.openConnection();

    if (wmsBackendCon.getContentEncoding() != null) {
        response.setCharacterEncoding(wmsBackendCon.getContentEncoding());
    }

    response.setContentType(wmsBackendCon.getContentType());

    int read = 0;
    byte[] data = new byte[1024];
    while (read > -1) {
        read = wmsBackendCon.getInputStream().read(data);
        if (read > -1) {
            response.getOutputStream().write(data, 0, read);
        }
    }

    return null;
}

From source file:com.google.gwt.site.webapp.server.resources.HashServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    int count;//  www.j  a v a 2  s.co m
    try {
        count = Integer.parseInt(req.getParameter("count"));
    } catch (NumberFormatException e) {
        throw new ServletException(e);
    }

    if (count < 0) {
        throw new ServletException("invalid value count " + count);
    }

    JSONObject root = new JSONObject();

    DatastoreService ds = DatastoreServiceFactory.getDatastoreService();

    PreparedQuery pq = ds.prepare(new Query("DocHash"));

    List<Entity> asList = pq.asList(FetchOptions.Builder.withOffset(count).limit(1000));
    JSONArray array = new JSONArray();

    try {
        root.put("hashes", array);
        for (Entity entity : asList) {
            count++;
            String key = entity.getKey().getName();
            String hash = (String) entity.getProperty("hash");

            JSONObject docHash = new JSONObject();
            docHash.put("key", key);
            docHash.put("hash", hash);
            array.put(docHash);
        }

        resp.getWriter().write(root.toString());
    } catch (JSONException e) {
        throw new ServletException(e);
    }
}

From source file:com.collective.celos.servlet.RegisterServlet.java

protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException {
    try {//from w w w.j  a  va  2  s. co  m
        BucketID bucket = getRequestBucketID(req);
        RegisterKey key = getRequestKey(req);
        try (StateDatabaseConnection connection = getStateDatabase().openConnection()) {
            JsonNode value = connection.getRegister(bucket, key);
            if (value == null) {
                res.sendError(HttpServletResponse.SC_NOT_FOUND, "Register not found");
            } else {
                writer.writeValue(res.getOutputStream(), value);
            }
        }
    } catch (Exception e) {
        throw new ServletException(e);
    }
}

From source file:com.cpjit.swagger4j.support.servlet.ApiServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String uri = req.getRequestURI();
    if (uri.matches(".*/api/index(/?)(!/)*")) {
        toIndex(req, resp);//from  w w  w.  j  a  va2 s.c om
    } else if (uri.matches(".*/api/statics/.+")) {
        queryStatic(req, resp);
    } else {
        try {
            queryApi(req, resp);
        } catch (Exception e) {
            throw new ServletException(e);
        }
    }
}

From source file:com.granule.CompressorHandler.java

public void handle(HttpServletRequest request, HttpServletResponse response, String id)
        throws IOException, ServletException {
    if (id != null) {
        CompressorSettings settings = TagCacheFactory
                .getCompressorSettings(request.getSession().getServletContext().getRealPath("/"));

        CachedBundle bundle;/*from  www . j av  a2  s .  c o  m*/
        try {
            bundle = TagCacheFactory.getInstance().getCompiledBundle(new RealRequestProxy(request), settings,
                    id);
        } catch (JSCompileException e) {
            throw new ServletException(e);
        }

        if (bundle == null) {
            response.setStatus(404);
            return;
        }

        response.setHeader("Content-Type", bundle.getMimeType() + "; charset=utf-8");
        response.setHeader("ETag", DigestUtils.md5Hex(bundle.getBundleValue()));
        HttpHeaders.setCacheExpireDate(response, 6048000);

        OutputStream os = response.getOutputStream();
        try {
            if (settings.isGzipOutput() && gzipSupported(request)) {
                response.setHeader("Content-Encoding", "gzip");
                os.write(bundle.getBundleValue());
            } else {
                bundle.getUncompressedScript(os);
            }
            os.flush();
        } finally {
            os.close();
        }
    }
}

From source file:edu.mayo.cts2.framework.webapp.rest.osgi.ProxyServlet.java

@Override
public void init(ServletConfig config) throws ServletException {
    super.init(config);

    Assert.notNull(config.getServletContext());

    try {/*from w w w  .  j a v  a  2 s  . c om*/
        doInit(config);
    } catch (ServletException e) {
        throw e;
    } catch (Exception e) {
        throw new ServletException(e);
    }
}

From source file:net.testdriven.psiprobe.ProbeServlet.java

@Override
public void init(ServletConfig config) throws ServletException {
    super.init(config);
    if (wrapper != null) {
        getContainerWrapperBean().setWrapper(wrapper);
    } else {/*  w  w  w  .  j  ava  2 s. c om*/
        throw new ServletException("Wrapper is null");
    }
}

From source file:org.examproject.websocket.SpringWebSocketServlet.java

@Override
public void init() throws ServletException {
    try {/*w w  w. ja v  a 2s. c  o  m*/
        // trying to load the Spring context file.
        // it's declared in Servlet web.xml.
        ServletConfig sc = getServletConfig();
        String configLocation = sc.getInitParameter("contextConfigLocation");
        context = new FileSystemXmlApplicationContext(
                getServletContext().getRealPath("/") + "/" + configLocation);
        // must call the superclass init method.
        super.init();
    } catch (ServletException se) {
        throw se;
    } catch (Exception e) {
        throw new ServletException(e);
    }
}

From source file:nl.flotsam.calendar.web.CalendarIcalView.java

@Override
protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    Calendar calendar = getCalendarToBeRendered(model);
    if (calendar == null) {
        throw new ServletException("Failed to locate Calendar to be rendered.");
    }// w w w .  j ava 2s  .  c  om
    response.setContentType("text/calendar");
    // TODO: We can leverage data from the Calendar here
    response.setHeader("Cache-Control", "no-cache");
    response.setCharacterEncoding("UTF-8");
    Writer writer = response.getWriter();
    calendar.toIcal(writer);
    writer.flush();
}