Example usage for javax.servlet.http HttpServletRequest getHeaderNames

List of usage examples for javax.servlet.http HttpServletRequest getHeaderNames

  1. HOME
  2. Java
  3. javax
  4. javax.servlet.http.*
  5. HttpServletRequest
  6. getHeaderNames

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletRequest getHeaderNames.

Prototype

public Enumeration<String> getHeaderNames();

Source Link

Document

Returns an enumeration of all the header names this request contains.

Usage

From source file:org.jkcsoft.web.struts.http.controllers.HttpHelper.java

/**
 *
 */
public static Enumeration getRequestHeaders(HttpServletRequest req) {
    return req.getHeaderNames();
}

From source file:de.micromata.genome.logging.LogRequestDumpAttribute.java

/**
 * Gen http request dump.//w  w w  .ja  va 2  s  . c om
 *
 * @param req the req
 * @return the string
 */
@SuppressWarnings("unchecked")
public static String genHttpRequestDump(HttpServletRequest req) {
    StringBuilder sb = new StringBuilder();

    sb.append("method: ").append(req.getMethod()).append('\n')//
            .append("requestURL: ").append(req.getRequestURL()).append('\n')//
            .append("servletPath: ").append(req.getServletPath()).append('\n')//
            .append("requestURI: ").append(req.getRequestURI()).append('\n') //
            .append("queryString: ").append(req.getQueryString()).append('\n') //
            .append("pathInfo: ").append(req.getPathInfo()).append('\n')//
            .append("contextPath: ").append(req.getContextPath()).append('\n') //
            .append("characterEncoding: ").append(req.getCharacterEncoding()).append('\n') //
            .append("localName: ").append(req.getLocalName()).append('\n') //
            .append("contentLength: ").append(req.getContentLength()).append('\n') //
    ;
    sb.append("Header:\n");
    for (Enumeration<String> en = req.getHeaderNames(); en.hasMoreElements();) {
        String hn = en.nextElement();
        sb.append("  ").append(hn).append(": ").append(req.getHeader(hn)).append("\n");
    }
    sb.append("Attr: \n");
    Enumeration en = req.getAttributeNames();
    for (; en.hasMoreElements();) {
        String k = (String) en.nextElement();
        Object v = req.getAttribute(k);
        sb.append("  ").append(k).append(": ").append(Objects.toString(v, StringUtils.EMPTY)).append('\n');
    }

    return sb.toString();
}

From source file:de.adorsys.oauth.authdispatcher.FixedServletUtils.java

/**
 * Creates a new HTTP request from the specified HTTP servlet request.
 *
 * @param sr              The servlet request. Must not be
 *                        {@code null}.//from   w  w  w.  j  av  a2  s  .c om
 * @param maxEntityLength The maximum entity length to accept, -1 for
 *                        no limit.
 *
 * @return The HTTP request.
 *
 * @throws IllegalArgumentException The the servlet request method is
 *                                  not GET, POST, PUT or DELETE or the
 *                                  content type header value couldn't
 *                                  be parsed.
 * @throws IOException              For a POST or PUT body that
 *                                  couldn't be read due to an I/O
 *                                  exception.
 */
public static HTTPRequest createHTTPRequest(final HttpServletRequest sr, final long maxEntityLength)
        throws IOException {

    HTTPRequest.Method method = HTTPRequest.Method.valueOf(sr.getMethod().toUpperCase());

    String urlString = reconstructRequestURLString(sr);

    URL url;

    try {
        url = new URL(urlString);

    } catch (MalformedURLException e) {

        throw new IllegalArgumentException("Invalid request URL: " + e.getMessage() + ": " + urlString, e);
    }

    HTTPRequest request = new HTTPRequest(method, url);

    try {
        request.setContentType(sr.getContentType());

    } catch (ParseException e) {

        throw new IllegalArgumentException("Invalid Content-Type header value: " + e.getMessage(), e);
    }

    Enumeration<String> headerNames = sr.getHeaderNames();

    while (headerNames.hasMoreElements()) {
        final String headerName = headerNames.nextElement();
        request.setHeader(headerName, sr.getHeader(headerName));
    }

    if (method.equals(HTTPRequest.Method.GET) || method.equals(HTTPRequest.Method.DELETE)) {

        request.setQuery(sr.getQueryString());

    } else if (method.equals(HTTPRequest.Method.POST) || method.equals(HTTPRequest.Method.PUT)) {

        if (maxEntityLength > 0 && sr.getContentLength() > maxEntityLength) {
            throw new IOException("Request entity body is too large, limit is " + maxEntityLength + " chars");
        }

        Map<String, String[]> parameterMap = sr.getParameterMap();
        StringBuilder builder = new StringBuilder();

        if (!parameterMap.isEmpty()) {
            for (Entry<String, String[]> entry : parameterMap.entrySet()) {
                String key = entry.getKey();
                String[] value = entry.getValue();
                if (value.length > 0 && value[0] != null) {
                    String encoded = URLEncoder.encode(value[0], "UTF-8");
                    builder = builder.append(key).append('=').append(encoded).append('&');
                }
            }
            String queryString = StringUtils.substringBeforeLast(builder.toString(), "&");
            request.setQuery(queryString);

        } else {
            // read body
            StringBuilder body = new StringBuilder(256);

            BufferedReader reader = sr.getReader();

            char[] cbuf = new char[256];

            int readChars;

            while ((readChars = reader.read(cbuf)) != -1) {

                body.append(cbuf, 0, readChars);

                if (maxEntityLength > 0 && body.length() > maxEntityLength) {
                    throw new IOException(
                            "Request entity body is too large, limit is " + maxEntityLength + " chars");
                }
            }

            reader.close();

            request.setQuery(body.toString());
        }
    }

    return request;
}

From source file:jp.pigumer.app.Application.java

@RequestMapping("/")
public String index(HttpServletRequest request, Model model) {
    List<String> headers = new ArrayList<>();
    Enumeration<String> enumHeaders = request.getHeaderNames();
    while (enumHeaders.hasMoreElements()) {
        String name = enumHeaders.nextElement();
        String value = request.getHeader(name);
        headers.add(String.format("%s: %s", name, value));
    }//from www  .  j ava2 s. com
    model.addAttribute("headers", headers);
    return "index";
}

From source file:com.lynn.controller.HttpAction.java

@RequestMapping("/header1.do")
@ResponseBody//from   w ww .ja v  a 2 s  .co  m
public String header1(HttpServletRequest request, HttpServletResponse response) {
    Enumeration e = request.getHeaderNames();
    String query = request.getQueryString();//??get??
    String etag = request.getHeader("etag");
    String if_none_match = request.getHeader("If-None-Match");
    String host = request.getHeader("host");
    String accept = request.getHeader("accept");
    String referer = request.getHeader("referer");
    String host1 = response.getHeader("host");
    String etag1 = response.getHeader("etag");
    String date1 = response.getHeader("date");
    String server1 = response.getHeader("server");
    return query;
}

From source file:net.sf.j2ep.requesthandlers.MaxForwardRequestHandler.java

/**
 * Will write all the headers included in the request to the method.
 * The difference between this method and setHeaders in BasicRequestHandler
 * is that the BasicRequestHandler will also add Via, x-forwarded-for, etc.
 * These "special" headers should not be added when the proxy is target
 * directly with a Max-Forwards: 0 headers.
 * @param method The method to write to/* w ww. j  av  a  2  s .co  m*/
 * @param request The incoming request
 * @see RequestHandlerBase#setHeaders(HttpMethod, HttpServletRequest)
 */
@SuppressWarnings("rawtypes")
private void setAllHeaders(HttpMethod method, HttpServletRequest request) {
    Enumeration headers = request.getHeaderNames();

    while (headers.hasMoreElements()) {
        String name = (String) headers.nextElement();
        Enumeration value = request.getHeaders(name);

        while (value.hasMoreElements()) {
            method.addRequestHeader(name, (String) value.nextElement());
        }

    }
}

From source file:se.inera.certificate.proxy.module.RequestInterceptor.java

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
    for (String s : Collections.list(request.getHeaderNames())) {
        log.debug(s + ":" + request.getHeader(s));
    }/*  w ww .  j a va 2  s.  c o m*/
    return true;
}

From source file:org.davidmendoza.esu.web.ErrorController.java

@RequestMapping(method = RequestMethod.GET)
public String show(HttpServletRequest request) {
    StringBuilder sb = new StringBuilder();
    Enumeration headerNames = request.getHeaderNames();
    while (headerNames.hasMoreElements()) {
        String key = (String) headerNames.nextElement();
        sb.append(key).append(":").append(request.getHeader(key)).append("\n");
    }/*from   w w w.  java  2  s .  com*/
    log.error("Error: {}", sb.toString());
    return "error/500";
}

From source file:de.adorsys.oauth.server.FixedServletUtils.java

/**
 * Creates a new HTTP request from the specified HTTP servlet request.
 *
 * @param servletRequest              The servlet request. Must not be
 *                        {@code null}.//from w w w  . j  av a  2  s  .  co m
 * @param maxEntityLength The maximum entity length to accept, -1 for
 *                        no limit.
 *
 * @return The HTTP request.
 *
 * @throws IllegalArgumentException The the servlet request method is
 *                                  not GET, POST, PUT or DELETE or the
 *                                  content type header value couldn't
 *                                  be parsed.
 * @throws IOException              For a POST or PUT body that
 *                                  couldn't be read due to an I/O
 *                                  exception.
 */
public static HTTPRequest createHTTPRequest(final HttpServletRequest servletRequest, final long maxEntityLength)
        throws IOException {

    HTTPRequest.Method method = HTTPRequest.Method.valueOf(servletRequest.getMethod().toUpperCase());

    String urlString = reconstructRequestURLString(servletRequest);

    URL url;

    try {
        url = new URL(urlString);

    } catch (MalformedURLException e) {

        throw new IllegalArgumentException("Invalid request URL: " + e.getMessage() + ": " + urlString, e);
    }

    HTTPRequest request = new HTTPRequest(method, url);

    try {
        request.setContentType(servletRequest.getContentType());

    } catch (ParseException e) {

        throw new IllegalArgumentException("Invalid Content-Type header value: " + e.getMessage(), e);
    }

    Enumeration<String> headerNames = servletRequest.getHeaderNames();

    while (headerNames.hasMoreElements()) {
        final String headerName = headerNames.nextElement();
        request.setHeader(headerName, servletRequest.getHeader(headerName));
    }

    if (method.equals(HTTPRequest.Method.GET) || method.equals(HTTPRequest.Method.DELETE)) {

        request.setQuery(servletRequest.getQueryString());

    } else if (method.equals(HTTPRequest.Method.POST) || method.equals(HTTPRequest.Method.PUT)) {

        if (maxEntityLength > 0 && servletRequest.getContentLength() > maxEntityLength) {
            throw new IOException("Request entity body is too large, limit is " + maxEntityLength + " chars");
        }

        Map<String, String[]> parameterMap = servletRequest.getParameterMap();
        StringBuilder builder = new StringBuilder();

        if (!parameterMap.isEmpty()) {
            for (Entry<String, String[]> entry : parameterMap.entrySet()) {
                String key = entry.getKey();
                String[] value = entry.getValue();
                if (value.length > 0 && value[0] != null) {
                    String encoded = URLEncoder.encode(value[0], "UTF-8");
                    builder = builder.append(key).append('=').append(encoded).append('&');
                }
            }
            String queryString = StringUtils.substringBeforeLast(builder.toString(), "&");
            request.setQuery(queryString);

        } else {
            // read body
            StringBuilder body = new StringBuilder(256);

            BufferedReader reader = servletRequest.getReader();
            reader.reset();
            char[] cbuf = new char[256];

            int readChars;

            while ((readChars = reader.read(cbuf)) != -1) {

                body.append(cbuf, 0, readChars);

                if (maxEntityLength > 0 && body.length() > maxEntityLength) {
                    throw new IOException(
                            "Request entity body is too large, limit is " + maxEntityLength + " chars");
                }
            }

            reader.reset();
            // reader.close();

            request.setQuery(body.toString());
        }
    }

    return request;
}

From source file:cn.sel.wetty.interceptor.AccessLogger.java

private String getHeaders(HttpServletRequest request) {
    Enumeration<String> headerNames = request.getHeaderNames();
    List<String> result = new ArrayList<>();
    while (headerNames.hasMoreElements()) {
        String name = headerNames.nextElement();
        result.add(String.format("%s=%s", name, getEnumerationString(request.getHeaders(name))));
    }//  ww w . j a v a 2  s  .c  o m
    return Arrays.toString(result.toArray());
}