Java HttpServletRequest.getCharacterEncoding方法代碼示例

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
public APIRequest(HttpServletRequest request) {

        this.request = request;

        header = new HashMap<String, Object>();
        Enumeration e = request.getHeaderNames();
        while (e.hasMoreElements()) {
            String name = (String) e.nextElement();
            Object value = request.getHeader(name);
            header.put(name, value);
        }

        params = getParamesMap(request.getParameterMap());
        url = request.getRequestURL().toString();
        uri = request.getRequestURI();
        remoteAddr = request.getRemoteAddr();
        remoteHost = request.getRemoteHost();
        remotePort = request.getRemotePort();
        contextPath = request.getContextPath();
        localAddr = request.getLocalAddr();
        characterEncoding = request.getCharacterEncoding();
        localName = request.getLocalName();
        localPort = request.getLocalPort();
        method = request.getMethod();
        queryString = request.getQueryString();
    }
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * Creates the target URL by checking if the redirect string is a URI template first,
 * expanding it with the given model, and then optionally appending simple type model
 * attributes as query String parameters.
 */
protected final String createTargetUrl(Map<String, Object> model, HttpServletRequest request)
        throws UnsupportedEncodingException {
    // Prepare target URL.
    StringBuilder targetUrl = new StringBuilder();
    if (this.contextRelative && getUrl().startsWith("/")) {
        // Do not apply context path to relative URLs.
        targetUrl.append(request.getContextPath());
    }
    targetUrl.append(getUrl());
    
    String enc = this.encodingScheme;
    if (enc == null) {
        enc = request.getCharacterEncoding();
    }
    if (enc == null) {
        enc = DEFAULT_CHARACTER_ENCODING;
    }
    
    if (this.expandUriTemplateVariables && StringUtils.hasText(targetUrl)) {
        Map<String, String> variables = Collections.<String, String> emptyMap();
        targetUrl = replaceUriTemplateVariables(targetUrl.toString(), model, variables, enc);
    }
    if (this.exposeModelAttributes) {
        appendQueryProperties(targetUrl, model, enc);
    }
    return targetUrl.toString();
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
    throws IOException, ServletException {

  HttpServletRequest req = (HttpServletRequest) request;
  HttpServletResponse resp = (HttpServletResponse) response;
  String servletPath = req.getServletPath() + req.getPathInfo();
  xLogger.fine("Servlet path: ", servletPath);
  if (req.getCharacterEncoding() == null) {
    request.setCharacterEncoding(Constants.UTF8);
  }

  if (!(StringUtils.isNotBlank(servletPath) && servletPath.startsWith(MEDIA_ENDPOINT_URL))) {
    resp.sendError(HttpServletResponse.SC_NOT_FOUND);
    return;
  }
  if (filterChain != null) {
    filterChain.doFilter(request, response);
  }
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * 讀取請求流
 * @param request
 * @return
 * @throws IOException
 */
public static String binaryReader(HttpServletRequest request) throws IOException {
    String charset = request.getCharacterEncoding();
    if (charset == null) {
        charset = "utf-8";
    }
    BufferedReader in = new BufferedReader(new InputStreamReader(request
            .getInputStream(), charset));

    // Read the request
    CharArrayWriter data = new CharArrayWriter();
    char[] buf = new char[8192];
    int ret;
    while ((ret = in.read(buf, 0, 8192)) != -1) {
        data.write(buf, 0, ret);
    }
    return data.toString();
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * 從HttpServletRequest中提取請求參數(包括請求體中的參數)
 * @param request
 * @param loggingContext
 * @return
 * @throws Exception
 */
protected HttpRequestParameter extractRequestParameter(HttpServletRequest request, LoggingContext loggingContext) throws Exception {
	HttpRequestParameter parameter = new HttpRequestParameter();
	Map<String,String[]> originalParamMap = request.getParameterMap();
	Map<String,String> paramMap = new HashMap<String,String>();
	if(originalParamMap != null && !originalParamMap.isEmpty()){
		for(Map.Entry<String, String[]> entry : originalParamMap.entrySet()){
			paramMap.put(entry.getKey(), getStringParameterValue(entry.getValue()));
		}
	}
	parameter.setParameter(paramMap);
	MediaType contentType = loggingContext.getHttpAccessLog().getRequestContentType();
	if(contentType != null){
		if(isContentCachingRequest(request)){
			String charset = request.getCharacterEncoding();
			if(StringUtils.isEmpty(charset)){
				charset = StringUtils.defaultIfEmpty(contentType.getCharset().name(), GlobalConstants.SYSTEM_DEFAULT_CHARSET);
			}
			ContentCachingRequestWrapper requestToUse = (ContentCachingRequestWrapper) request;
			byte[] bytes = requestToUse.getContentAsByteArray();
			if(bytes != null){
				String body = IOUtils.toString(bytes, charset);
				Object bodyObj = body;
				if(MediaType.APPLICATION_JSON.getType().equals(contentType.getType())){ //目前隻處理JSON類型的數據
					if(body.startsWith("[") && body.endsWith("]")){ //JSON Array String -> List<Map<String,Object>>
						bodyObj = JsonUtils.json2Object(body, new TypeReference<List<Map<String,Object>>>(){});
					}else if(body.startsWith("{") && body.endsWith("}")){ //JSON Object String -> Map<String,Object>
						bodyObj = JsonUtils.json2Object(body, new TypeReference<Map<String,Object>>(){});
					}
				}
				parameter.setBody(bodyObj);
			}
			
		}
	}
	return excludeRequestParameter(parameter, loggingContext);
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * If the character encoding is not initialized, it will be set to UTF-8
 */
public IgnoreCharacterEncodingHttpRequestWrapper(HttpServletRequest request)
        throws UnsupportedEncodingException {

    super(request);
    if (request.getCharacterEncoding() == null) {
        request.setCharacterEncoding(Constants.CHARACTER_ENCODING_UTF8);
    }
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@SuppressWarnings("unchecked")
public void setRequest(HttpServletRequest req)
{
  _clearMap();
  _requestParams = req.getParameterMap();
  _encoding = req.getCharacterEncoding();
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * {@inheritDoc}
 */
@Override
public List<Event> getEvents(HttpServletRequest request) throws Exception {
  BufferedReader reader = request.getReader();
  String charset = request.getCharacterEncoding();
  //UTF-8 is default for JSON. If no charset is specified, UTF-8 is to
  //be assumed.
  if (charset == null) {
    LOG.debug("Charset is null, default charset of UTF-8 will be used.");
    charset = "UTF-8";
  } else if (!(charset.equalsIgnoreCase("utf-8")
          || charset.equalsIgnoreCase("utf-16")
          || charset.equalsIgnoreCase("utf-32"))) {
    LOG.error("Unsupported character set in request {}. "
            + "JSON handler supports UTF-8, "
            + "UTF-16 and UTF-32 only.", charset);
    throw new UnsupportedCharsetException("JSON handler supports UTF-8, "
            + "UTF-16 and UTF-32 only.");
  }

  /*
   * Gson throws Exception if the data is not parseable to JSON.
   * Need not catch it since the source will catch it and return error.
   */
  List<Event> eventList = new ArrayList<Event>(0);
  try {
    eventList = gson.fromJson(reader, listType);
  } catch (JsonSyntaxException ex) {
    throw new HTTPBadRequestException("Request has invalid JSON Syntax.", ex);
  }

  for (Event e : eventList) {
    ((JSONEvent) e).setCharset(charset);
  }
  return getSimpleEvents(eventList);
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@Override
protected void doFilterInternal(
		HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
		throws ServletException, IOException {

	if (this.encoding != null && (this.forceEncoding || request.getCharacterEncoding() == null)) {
		request.setCharacterEncoding(this.encoding);
		if (this.forceEncoding) {
			response.setCharacterEncoding(this.encoding);
		}
	}
	filterChain.doFilter(request, response);
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
private byte[] encodeFormParameters(HttpServletRequest request, String defaultEncoding) {
    try {
        String encoding = request.getCharacterEncoding();
        if (encoding == null) {
            encoding = defaultEncoding;
        }
        Map<String, List<String>> formParameters = parseFormParameters(request, encoding);
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        OutputStreamWriter writer = new OutputStreamWriter(outputStream, encoding);
        boolean firstFormParameter = true;
        for (Map.Entry<String, List<String>> formParameter : formParameters.entrySet()) {
            String formParameterName = formParameter.getKey();
            String encodedFormParameterName = URLEncoder.encode(formParameterName, encoding);
            for (String formParameterValue : formParameter.getValue()) {
                String encodedFormParameterValue = URLEncoder.encode(formParameterValue, encoding);
                if (firstFormParameter) {
                    firstFormParameter = false;
                } else {
                    writer.write('&');
                }
                writer.write(encodedFormParameterName);
                writer.write('=');
                writer.write(encodedFormParameterValue);
            }
        }
        writer.close();
        return outputStream.toByteArray();
    } catch (Throwable error) {
        LOGGER.error("failed to encode form parameters", error);
        return new byte[0];
    }
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@SuppressWarnings("deprecation")
private String getRequestBody(HttpServletRequest request) throws IOException {
    String charset = request.getCharacterEncoding() == null ? CHARSET_UTF_8 : request.getCharacterEncoding();
    String requestBody = IOUtils.toString(request.getInputStream(), charset);
    if (StringUtils.isBlank(requestBody)) {
        throw new IllegalArgumentException("request-body is empty");
    }

    return requestBody;
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * Process a HTTP request for a service price model
 * 
 * @param request
 *            a HTTP servlet request
 * @param response
 *            a HTTP servlet response
 * @throws ServletException
 * @throws IOException
 */
@Override
protected void process(HttpServletRequest request,
        HttpServletResponse response) throws ServletException, IOException {

    if (request.getCharacterEncoding() == null) {
        request.setCharacterEncoding("UTF-8");
    }

    response.setHeader("Cache-Control",
            "no-cache, no-store, must-revalidate");
    response.setHeader("Pragma", "no-cache");

    final String locale = request.getParameter(REQUEST_PARAM_LOCALE);
    if (emptyString(locale)) {
        errorForward(request, response, "Please enter a valid locale.");
        return;
    }

    Map<ContextKey, ContextValue<?>> context = evaluateServicePmContext(request);
    if (context != null) {

        PriceModel priceModel = getPriceModel(context,
                createLocaleSet(SUPPORTED_LOCALES));
        if (priceModel == null) {
            errorForward(request, response, "Price model not found.");
            return;
        }

        PriceModelContent priceModelContent = getPriceModelContent(
                priceModel, new Locale(locale));
        if (priceModelContent != null) {
            if (!generatePdfResponse(priceModelContent,
                    generateServicePmFileName(context), response)) {
                errorForward(request, response,
                        "Price model found but its file type was not supported.");
            }
        } else {
            errorForward(request, response,
                    "Price model neither found for specified locale nor for default locale.");
        }
    } else {
        errorForward(request, response, "Please enter all required fields.");
    }

}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
    throws IOException, ServletException {
  xLogger.fine("Entered doFilter");
  HttpServletRequest req = (HttpServletRequest) request;
  HttpServletResponse resp = (HttpServletResponse) response;
  String servletPath = req.getServletPath();
  if (req.getCharacterEncoding() == null) {
    request.setCharacterEncoding(Constants.UTF8);
  }
  // BACKWARD COMPATIBILITY - in case people have already bookmarked these links
  if ("/index.jsp".equals(servletPath) || "/login.jsp".equals(servletPath)) {
    resp.sendRedirect(isForceNewUI ? HOME_URL_NEW : HOME_URL);
    return;
  }
  SecureUserDetails
      userDetails = null;
  // END BACKWARD COMPATIBILITY
  if (!LOGIN_URL.equals(servletPath) && !AUTHENTICATE_URL.equals(servletPath) && (
      servletPath.isEmpty() || servletPath.equals("/") || servletPath.startsWith("/s/") || (
          servletPath.startsWith(TASK_URL) && StringUtils
              .isBlank(req.getHeader(Constants.X_APP_ENGINE_TASK_NAME))))) {
    userDetails = SecurityMgr
        .getSessionDetails(req.getSession());
    if (userDetails == null) { // session not authenticated yet; direct to login screen
      if (!(servletPath.startsWith(TASK_ADMIN_URL) && ACTION_UPDATESYSCONFIG
          .equals(request.getParameter(ACTION)))) {
        if (isForceNewUI) {
          resp.sendRedirect(HOME_URL_NEW);  // login please
        } else {
          String redirectPath = LOGIN_URL;
          if (servletPath.startsWith("/s/") || servletPath.startsWith(TASK_URL)) {
            String rUrl = servletPath;
            String queryString = req.getQueryString();
            if (queryString != null && !queryString.isEmpty()) {
              rUrl += "?" + queryString;
            }
            redirectPath += "?rurl=" + URLEncoder.encode(rUrl, "UTF-8");
          }
          resp.sendRedirect(redirectPath);  // login please
        }
        return;
      }
    } else {
      String role = userDetails.getRole();
      if (SecurityConstants.ROLE_KIOSKOWNER
          .equals(role)) { // Kiosk owner cannot access this interface
        SessionMgr.cleanupSession(req.getSession());
        resp.sendRedirect(LOGIN_URL + "?status=4");
        return;
      }
      if ((servletPath.contains("/admin/") || servletPath.startsWith(TASK_URL))
          && !SecurityConstants.ROLE_SUPERUSER.equals(role)) { // only superuser can access
        SessionMgr.cleanupSession(req.getSession());
        resp.sendRedirect(LOGIN_URL + "?status=4"); // access denied
        return;
      }

    }
  }
  if (userDetails != null) {
    SecurityUtils.setUserDetails(userDetails);
  }
  try {
    if (filterChain != null) {
      filterChain.doFilter(request, response);
    }
  } finally {
    if (userDetails != null) {
      SecurityUtils.setUserDetails(null);
    }
  }
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
    throws IOException, ServletException {

  HttpServletRequest req = (HttpServletRequest) request;
  HttpServletResponse resp = (HttpServletResponse) response;
  String servletPath = req.getServletPath() + req.getPathInfo();
  xLogger.fine("Servlet path: ", servletPath);
  if (req.getCharacterEncoding() == null) {
    request.setCharacterEncoding(Constants.UTF8);
  }

  if (StringUtils.isNotEmpty(req.getHeader("app-name"))) {
    filterChain.doFilter(request, response);
  }
  try {
    //this is meant for internal api client
    if (StringUtils.isNotBlank(req.getHeader(X_ACCESS_USER))) {
      try {
        SecurityMgr.setSessionDetails(req.getHeader(X_ACCESS_USER));
      } catch (Exception e) {
        xLogger.severe("Issue with api client authentication", e);
        resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
        return;
      }

    } else if (StringUtils.isBlank(req.getHeader(Constants.X_APP_ENGINE_TASK_NAME)) && !(
        StringUtils.isNotBlank(servletPath) && (servletPath.startsWith(ASSET_STATUS_URL)
            || servletPath.startsWith(SMS_API_URL) || servletPath.startsWith(M_AUTH_URL)))) {
      String recvdCookie = getAppCookie(req);
      if (appVerAvailable && recvdCookie != null && !appVersion.equals(recvdCookie)) {
        resp.setHeader(ERROR_HEADER_NAME, UPGRADE_REQUIRED_RESPONSE_CODE);
        resp.sendError(HttpServletResponse.SC_CONFLICT, "Upgrade required");
        return;
      }
      if (StringUtils.isNotBlank(servletPath) && !(servletPath.startsWith(APP_STATUS_URL)
          || servletPath.startsWith(AUTHENTICATE_URL))) {
        SecureUserDetails
            userDetails = SecurityMgr
            .getSessionDetails(req.getSession());
        if (userDetails == null) {
          resp.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Authentication Required.");
          return;
        }
        SecurityUtils.setUserDetails(userDetails);
        String reqDomainId = SecurityUtils.getReqCookieUserDomain(req);
        if (reqDomainId != null && !reqDomainId.equals(
            userDetails.getUsername() + CharacterConstants.COLON + SecurityUtils
                .getCurrentDomainId())) {
          resp.setHeader(ERROR_HEADER_NAME, DOMAIN_CHANGE_RESPONSE_CODE);
          resp.sendError(HttpServletResponse.SC_CONFLICT, "Invalid session on client");
          return;
        }
      }

    }

    if (filterChain != null) {
      filterChain.doFilter(request, response);
    }
  } finally {
    SecurityUtils.setUserDetails(null);
  }
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * Adds a regular text parameter to the set of text parameters for this
 * request and also to the list of all parameters. Handles the case of
 * multiple values for the same parameter by using an array for the
 * parameter value.
 *
 * @param request The request in which the parameter was specified.
 * @param item    The file item for the parameter to add.
 */
protected void addTextParameter(HttpServletRequest request, FileItem item) {
    String name = item.getFieldName();
    String value = null;
    boolean haveValue = false;
    String encoding = request.getCharacterEncoding();

    if (encoding != null) {
        try {
            value = item.getString(encoding);
            haveValue = true;
        } catch (Exception e) {
            // Handled below, since haveValue is false.
        }
    }
    if (!haveValue) {
        try {
             value = item.getString("ISO-8859-1");
        } catch (java.io.UnsupportedEncodingException uee) {
             value = item.getString();
        }
        haveValue = true;
    }

    if (request instanceof MultipartRequestWrapper) {
        MultipartRequestWrapper wrapper = (MultipartRequestWrapper) request;
        wrapper.setParameter(name, value);
    }

    String[] oldArray = (String[]) elementsText.get(name);
    String[] newArray;

    if (oldArray != null) {
        newArray = new String[oldArray.length + 1];
        System.arraycopy(oldArray, 0, newArray, 0, oldArray.length);
        newArray[oldArray.length] = value;
    } else {
        newArray = new String[] { value };
    }

    elementsText.put(name, newArray);
    elementsAll.put(name, newArray);
}