Example usage for javax.servlet ServletRequest getParameterNames

Introduction

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

Prototype

public Enumeration<String> getParameterNames();

Source Link

Document

Returns an Enumeration of String objects containing the names of the parameters contained in this request.

Usage

From source file:com.shz.foundation.utils.Servlets.java

/**
 * ???Request Parameters, copy from spring WebUtils.
 * /*from www .  jav a2  s.c om*/
 * Parameter???.
 */
public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix) {
    Validate.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.emaxcore.emaxdata.common.web.Servlets.java

/**
 * ???Request Parameters, copy from spring WebUtils.
 *
 * Parameter???./*from   ww  w . j  a  v  a  2 s  .  com*/
 */
@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 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 > 1) {
                params.put(unprefixed, values);
            } else {
                if (values != null && values.length == 1) {
                    params.put(unprefixed, values[0]);
                }
            }
        }
    }
    return params;
}

---

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

/**
 * ???Request Parameters, copy from spring WebUtils.
 * /*from   ww  w.j a  va  2s. co m*/
 * 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;
}

---

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

/**
 * ???Request ParametersParameter???/*  w w  w  .jav a2 s .com*/
 * @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;
}

---

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

/**
 * ???Request Parameters, copy from spring WebUtils.
 * /*from  w  w  w . j  a va  2  s.c om*/
 * 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;
}

---

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

/**
 * ???Request Parameters.//from ww w  . j  a v  a 2  s.  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.
 * //  w  ww  . j  av a 2s  . c om
 * Parameter
 */
@SuppressWarnings("rawtypes")
public static Map<String, Object> getParameters(ServletRequest request) {
    Validate.notNull(request, "Request must not be null");
    Enumeration paramNames = request.getParameterNames();
    Map<String, Object> params = new TreeMap<String, Object>();
    while ((paramNames != null) && paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();
        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;
}

---

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

/**
 * ???Request Parameters, copy from spring WebUtils.
 * //www.j ava  2s  .c  o m
 * 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.
 * //from  w  ww . j  av  a  2  s. co m
 * 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;
}

---

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

/**
 * ???Request Parameters./* ww w  . j  a  v a  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;
}

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