Example usage for javax.servlet ServletRequest getParameterValues

Introduction

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

Prototype

public String[] getParameterValues(String name);

Source Link

Document

Returns an array of String objects containing all of the values the given request parameter has, or null if the parameter does not exist.

Usage

From source file:com.github.tx.archetype.common.util.Servlets.java

/**
 * ???Request ParametersParameter???//from   w  w w  .j  a  va2  s. c o m
 * @param request
 * @param prefix ?
 * @param ignoreEmptyValue ?
 * @return
 */
public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix,
        boolean ignoreEmptyValue) {
    Validate.notNull(request, "Request must not be null");
    Enumeration paramNames = request.getParameterNames();
    Map<String, Object> params = Maps.newHashMap();
    if (prefix == null) {
        prefix = "";
    }
    while ((paramNames != null) && paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        if ("".equals(prefix) || paramName.startsWith(prefix)) {
            String unprefixed = paramName.substring(prefix.length());
            String[] values = request.getParameterValues(paramName);
            if (values != null && values.length > 0) {
                for (int i = 0; i < values.length; i++) {
                    values[i] = values[i].trim();
                }
            }
            if ((values == null) || (values.length == 0)) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                if (!ignoreEmptyValue) {
                    params.put(unprefixed, values[0]);
                } else {
                    if (StringUtils.isNotBlank(values[0])) {
                        params.put(unprefixed, values[0]);
                    }
                }
            }
        }
    }
    return params;
}

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From source file:com.innovate.cms.common.web.Servlets.java

/**
 * ???Request Parameters, copy from spring WebUtils.
 * // www. j  av  a  2s .  com
 * Parameter???.
 */
@SuppressWarnings("rawtypes")
public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix) {
    Validate.notNull(request, "Request must not be null");
    Enumeration paramNames = request.getParameterNames();
    Map<String, Object> params = new TreeMap<String, Object>();
    String pre = prefix;
    if (pre == null) {
        pre = "";
    }
    while (paramNames != null && paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        if ("".equals(pre) || paramName.startsWith(pre)) {
            String unprefixed = paramName.substring(pre.length());
            String[] values = request.getParameterValues(paramName);
            if (values == null || values.length == 0) {
                values = new String[] {};
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        }
    }
    return params;
}

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From source file:com.cnksi.core.web.utils.Servlets.java

/**
 * ???Request Parameters, copy from spring WebUtils.
 * //from w ww  .  j av a2  s  .com
 * Parameter???.
 * 
 * @param dwzExport true|false ?ExcelValue???
 */
public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix,
        boolean dwzExport) {

    Validate.notNull(request, "Request must not be null");
    Enumeration paramNames = request.getParameterNames();
    Map<String, Object> params = new TreeMap<String, Object>();
    if (prefix == null) {
        prefix = "";
    }
    while (paramNames != null && paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        if ("".equals(prefix) || paramName.startsWith(prefix)) {
            String unprefixed = paramName.substring(prefix.length());
            String[] values = request.getParameterValues(paramName);
            if (values == null || values.length == 0) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        }
    }

    if (dwzExport) {
        Iterator<String> it = params.keySet().iterator();

        while (it.hasNext()) {
            try {
                String key = it.next();
                String value = params.get(key).toString();
                String encodedValue = new String(value.getBytes("ISO8859-1"), "UTF-8");

                params.put(key, encodedValue);

            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        }
    }

    return params;
}

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From source file:com.age.core.utils.web.ServletUtils.java

/**
 * ???Request Parameters./*from   ww w  .  ja  va 2s  . c o  m*/
 * 
 * Parameter???.
 */
public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix) {
    AssertUtils.notNull(request, "Request must not be null");
    Enumeration paramNames = request.getParameterNames();
    Map<String, Object> params = new TreeMap<String, Object>();
    if (prefix == null) {
        prefix = "";
    }
    while (paramNames != null && paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        if ("".equals(prefix) || paramName.startsWith(prefix)) {
            String unprefixed = paramName.substring(prefix.length());
            String[] values = request.getParameterValues(paramName);
            if (values == null || values.length == 0) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        }
    }
    return params;
}

---

From source file:com.soolr.core.web.Servlets.java

/**
 * ???Request Parameters, copy from spring WebUtils.
 * /* ww  w.  j  a v a 2  s.com*/
 * Parameter???.
 */
public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix) {
    Validate.notNull(request, "Request must not be null");
    Enumeration paramNames = request.getParameterNames();
    Map<String, Object> params = new TreeMap<String, Object>();

    String prefix_ = prefix == null ? "" : prefix;
    while ((paramNames != null) && paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        if ("".equals(prefix_) || paramName.startsWith(prefix_)) {
            String unprefixed = paramName.substring(prefix_.length());
            String[] values = request.getParameterValues(paramName);
            if ((values == null) || (values.length == 0)) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        }
    }
    return params;
}

---

From source file:com.soolr.core.web.Servlets.java

/**
 * ???Request Parameters, copy from spring WebUtils.
 * // www.jav a  2s  . com
 * Parameter???.
 */
public static Map<String, Object> getPmParametersStartingWith(ServletRequest request, String prefix) {
    Validate.notNull(request, "Request must not be null");
    Enumeration paramNames = request.getParameterNames();
    Map<String, Object> params = new TreeMap<String, Object>();

    String prefix_ = prefix == null ? "" : prefix;
    while ((paramNames != null) && paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        if ("".equals(prefix_) || paramName.startsWith(prefix_)) {
            String unprefixed = paramName.substring(prefix_.length());
            String[] values = request.getParameterValues(paramName);
            if ((values == null) || (values.length == 0)) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        } else {//??
            String[] values = request.getParameterValues(paramName);
            if ((values == null) || (values.length == 0)) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(paramName, values);
            } else {
                params.put(paramName, values[0]);
            }
        }
    }
    return params;
}

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From source file:com.sunway.cbm.util.ServletUtils.java

/**
 * ???Request Parameters.//from   w  ww .j av  a2  s . c  om
 * 
 * Parameter???.
 */
public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix) {
    AssertUtils.notNull(request, "Request must not be null");
    Enumeration<?> paramNames = request.getParameterNames();
    Map<String, Object> params = new TreeMap<String, Object>();
    if (prefix == null) {
        prefix = "";
    }
    while (paramNames != null && paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        if ("".equals(prefix) || paramName.startsWith(prefix)) {
            String unprefixed = paramName.substring(prefix.length());
            String[] values = request.getParameterValues(paramName);
            if (values == null || values.length == 0) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        }
    }
    return params;
}

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From source file:org.jruby.rack.mock.WebUtils.java

/**
 * Return a map containing all parameters with the given prefix.
 * Maps single values to String and multiple values to String array.
 * <p>For example, with a prefix of "spring_", "spring_param1" and
 * "spring_param2" result in a Map with "param1" and "param2" as keys.
 * @param request HTTP request in which to look for parameters
 * @param prefix the beginning of parameter names
 * (if this is null or the empty string, all parameters will match)
 * @return map containing request parameters <b>without the prefix</b>,
 * containing either a String or a String array as values
 * @see javax.servlet.ServletRequest#getParameterNames
 * @see javax.servlet.ServletRequest#getParameterValues
 * @see javax.servlet.ServletRequest#getParameterMap
 *///www.j  av  a  2 s  . co  m
public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix) {
    Assert.notNull(request, "Request must not be null");
    Enumeration<String> paramNames = request.getParameterNames();
    Map<String, Object> params = new TreeMap<String, Object>();
    if (prefix == null) {
        prefix = "";
    }
    while (paramNames != null && paramNames.hasMoreElements()) {
        String paramName = paramNames.nextElement();
        if ("".equals(prefix) || paramName.startsWith(prefix)) {
            String unprefixed = paramName.substring(prefix.length());
            String[] values = request.getParameterValues(paramName);
            if (values == null || values.length == 0) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        }
    }
    return params;
}

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From source file:com.doculibre.constellio.filters.SetCharacterEncodingFilter.java

/**
 * Select and set (if specified) the character encoding to be used to
 * interpret request parameters for this request.
 * /* w w  w. jav  a  2s .co m*/
 * @param request
 *            The servlet request we are processing
 * @param result
 *            The servlet response we are creating
 * @param chain
 *            The filter chain we are processing
 * @exception IOException
 *                if an input/output error occurs
 * @exception ServletException
 *                if a servlet error occurs
 */
@SuppressWarnings("unchecked")
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    if (false) {
        chain.doFilter(request, response);
    } else {
        String lookupCharSet = lookupCharSet(request);

        SimpleParams simpleParams = new SimpleParams();
        Enumeration<String> paramNames = request.getParameterNames();
        while (paramNames.hasMoreElements()) {
            String paramName = paramNames.nextElement();
            String convertedParamName = convertIfNeeded(paramName, lookupCharSet);
            String[] paramValues = request.getParameterValues(paramName);
            List<String> convertedParamValues = new ArrayList<String>();
            if (paramValues != null) {
                for (String paramValue : paramValues) {
                    String convertedParamValue = convertIfNeeded(paramValue, lookupCharSet);
                    if (convertedParamValue != null) {
                        convertedParamValues.add(convertedParamValue);
                    }
                }
            }
            simpleParams.add(convertedParamName, convertedParamValues.toArray(new String[0]));
        }
        HttpServletRequest requestWrapper = new SimpleParamsHttpServletRequestWrapper(
                (HttpServletRequest) request, simpleParams);

        // Conditionally select and set the character encoding to be used
        if (ignore || (request.getCharacterEncoding() == null)) {
            String encoding = selectEncoding(request);
            if (encoding != null) {
                request.setCharacterEncoding(encoding);
            }
        }

        // Pass control on to the next filter
        chain.doFilter(requestWrapper, response);
    }
}

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From source file:com.xsw.utils.Servlets.java

/**
 * ???Request Parameters, copy from spring WebUtils.
 * /*from  w w  w  .j a v a  2  s.c om*/
 * Parameter???.
 */
public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix) {
    Validate.notNull(request, "Request must not be null");
    Map<String, Object> params = new TreeMap<String, Object>();
    if (prefix == null) {
        prefix = "";
    }
    // process Attribute
    Enumeration<String> paramNames = request.getAttributeNames();
    while (paramNames != null && paramNames.hasMoreElements()) {
        String paramName = paramNames.nextElement();
        if ("".equals(prefix) || paramName.startsWith(prefix)) {
            String unprefixed = paramName.substring(prefix.length());
            Object attobj = request.getAttribute(paramName);
            String[] values = null;
            if (attobj instanceof String[]) {
                values = (String[]) attobj;
            } else {
                values = new String[1];
                values[0] = String.valueOf(attobj);
            }
            if (values == null || values.length == 0) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        }
    }
    // process parameter
    paramNames = request.getParameterNames();
    while (paramNames != null && paramNames.hasMoreElements()) {
        String paramName = paramNames.nextElement();
        if ("".equals(prefix) || paramName.startsWith(prefix)) {
            String unprefixed = paramName.substring(prefix.length());
            String[] values = request.getParameterValues(paramName);
            if (values == null || values.length == 0) {
                // Do nothing, no values found at all.
            } else if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        }
    }
    return params;
}

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