Java ServletRequest.getParameterValues方法代码示例

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
/**
 * 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
 */
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;
}
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
/**
 * 取得带相同前缀的Request Parameters.
 *
 * 返回的结果的Parameter名已去除前缀.
 */
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;
}
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
/**
 * 取得带相同前缀的Request Parameters.
 * 
 * 返回的结果的Parameter名已去除前缀.
 */
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;
}
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
/**
 * 取得带相同前缀的Request Parameters, copy from spring WebUtils.
 * <p>
 * 返回的结果的Parameter名已去除前缀.
 */
@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;
}
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
/**
 * 取得带相同前缀的Request Parameters. 返回的结果的Parameter名已去除前缀.
 * 
 * @param request
 *            HttpServletRequest
 * @param prefix
 *            String
 * @return Map
 */
@SuppressWarnings("unchecked")
public static Map<String, Object> getParametersStartingWith(
        ServletRequest request, String prefix) {
    Assert.notNull(request, "Request must not be null");

    Enumeration paramNames = request.getParameterNames();
    Map<String, Object> params = new TreeMap<String, Object>();

    String thePrefix = (prefix == null) ? "" : prefix;

    while (paramNames.hasMoreElements()) {
        String paramName = (String) paramNames.nextElement();

        if ("".equals(thePrefix) || paramName.startsWith(thePrefix)) {
            String unprefixed = paramName.substring(thePrefix.length());
            String[] values = request.getParameterValues(paramName);

            if ((values == null) || (values.length == 0)) {
                // Do nothing, no values found at all.
                continue;
            }

            if (values.length > 1) {
                params.put(unprefixed, values);
            } else {
                params.put(unprefixed, values[0]);
            }
        }
    }

    return params;
}
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
/**
 * 取得带相同前缀的Request Parameters, copy from spring WebUtils.
 * 
 * 返回的结果的Parameter名已去除前缀.
 */
@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;
}
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
/**
     * Time the processing that is performed by all subsequent filters in the
     * current filter stack, including the ultimately invoked servlet.
     *
     * @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
     */
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain)
	throws IOException, ServletException {

        if (filterConfig == null)
	    return;

	// Render the generic servlet request properties
	StringWriter sw = new StringWriter();
	PrintWriter writer = new PrintWriter(sw);
	writer.println("Request Received at " +
		       (new Timestamp(System.currentTimeMillis())));
	writer.println(" characterEncoding=" + request.getCharacterEncoding());
	writer.println();
	Enumeration names = request.getParameterNames();
	writer.println( "----------------parameters-----------" );
	while (names.hasMoreElements()) {
	    String name = (String) names.nextElement();
	    writer.print("         " + name + "=");
	    String values[] = request.getParameterValues(name);
	    for (int i = 0; i < values.length; i++) {
	        if (i > 0)
		    writer.print(", ");
		writer.print(values[i]);
	    }
	    writer.println();
	}
//	writer.println("          protocol=" + request.getProtocol());
//	writer.println("        remoteAddr=" + request.getRemoteAddr());
//	writer.println("        remoteHost=" + request.getRemoteHost());
//	writer.println("            scheme=" + request.getScheme());
//	writer.println("        serverName=" + request.getServerName());
//	writer.println("        serverPort=" + request.getServerPort());
//	writer.println("          isSecure=" + request.isSecure());

	// Render the HTTP servlet request properties
	if (request instanceof HttpServletRequest) {
	    writer.println("---------------------------------------------");
	    HttpServletRequest hrequest = (HttpServletRequest) request;
	   //writer.println("       contextPath=" + hrequest.getContextPath());
	    
//	    names = hrequest.getHeaderNames();
//	    while (names.hasMoreElements()) {
//	        String name = (String) names.nextElement();
//		String value = hrequest.getHeader(name);
//	        writer.println("            header=" + name + "=" + value);
//	    }
	    //writer.println("            method=" + hrequest.getMethod());
	    writer.println("          pathInfo=" + hrequest.getPathInfo());
	    writer.println("       queryString=" + hrequest.getQueryString());
	    //writer.println("        remoteUser=" + hrequest.getRemoteUser());
	    //writer.println("requestedSessionId=" +
		//	   hrequest.getRequestedSessionId());
	    writer.println("        requestURI=" + hrequest.getRequestURI());
	    writer.println("       servletPath=" + hrequest.getServletPath());
	}
	writer.println("=============================================");
	System.out.println( sw.getBuffer().toString() );
	// Log the resulting string
	writer.flush();
	filterConfig.getServletContext().log(sw.getBuffer().toString());

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

    }
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
public static void introspecthelper(Object bean, String prop,
                                    String value, ServletRequest request,
                                    String param, boolean ignoreMethodNF)
                                    throws JasperException {
    Method method = null;
    Class<?> type = null;
    Class<?> propertyEditorClass = null;
    try {
        java.beans.BeanInfo info
            = java.beans.Introspector.getBeanInfo(bean.getClass());
        if ( info != null ) {
            java.beans.PropertyDescriptor pd[]
                = info.getPropertyDescriptors();
            for (int i = 0 ; i < pd.length ; i++) {
                if ( pd[i].getName().equals(prop) ) {
                    method = pd[i].getWriteMethod();
                    type   = pd[i].getPropertyType();
                    propertyEditorClass = pd[i].getPropertyEditorClass();
                    break;
                }
            }
        }
        if ( method != null ) {
            if (type.isArray()) {
                if (request == null) {
                    throw new JasperException(
                        Localizer.getMessage("jsp.error.beans.setproperty.noindexset"));
                }
                Class<?> t = type.getComponentType();
                String[] values = request.getParameterValues(param);
                //XXX Please check.
                if(values == null) return;
                if(t.equals(String.class)) {
                    method.invoke(bean, new Object[] { values });
                } else {
                    createTypedArray (prop, bean, method, values, t,
                                      propertyEditorClass); 
                }
            } else {
                if(value == null || (param != null && value.equals(""))) return;
                Object oval = convert(prop, value, type, propertyEditorClass);
                if ( oval != null )
                    method.invoke(bean, new Object[] { oval });
            }
        }
    } catch (Exception ex) {
        Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
        ExceptionUtils.handleThrowable(thr);
        throw new JasperException(ex);
    }
    if (!ignoreMethodNF && (method == null)) {
        if (type == null) {
            throw new JasperException(
                Localizer.getMessage("jsp.error.beans.noproperty",
                                     prop,
                                     bean.getClass().getName()));
        } else {
            throw new JasperException(
                Localizer.getMessage("jsp.error.beans.nomethod.setproperty",
                                     prop,
                                     type.getName(),
                                     bean.getClass().getName()));
        }
    }
}
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
protected String getCallback(ServletRequest req)
{
	return req.getParameterValues(jsonp)[0];
}
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
private static void internalIntrospecthelper(Object bean, String prop,
				String value, ServletRequest request,
				String param, boolean ignoreMethodNF) 
				throws JasperException
   {
       Method method = null;
       Class type = null;
       Class propertyEditorClass = null;
try {
    java.beans.BeanInfo info
	= java.beans.Introspector.getBeanInfo(bean.getClass());
    if ( info != null ) {
	java.beans.PropertyDescriptor pd[]
	    = info.getPropertyDescriptors();
	for (int i = 0 ; i < pd.length ; i++) {
	    if ( pd[i].getName().equals(prop) ) {
		method = pd[i].getWriteMethod();
		type   = pd[i].getPropertyType();
		propertyEditorClass = pd[i].getPropertyEditorClass();
		break;
	    }
	}
    }
    if ( method != null ) {
	if (type.isArray()) {
                   if (request == null) {
		throw new JasperException(
	            Localizer.getMessage("jsp.error.beans.setproperty.noindexset"));
                   }
	    Class t = type.getComponentType();
	    String[] values = request.getParameterValues(param);
	    //XXX Please check.
	    if(values == null) return;
	    if(t.equals(String.class)) {
		method.invoke(bean, new Object[] { values });
	    } else {
		Object tmpval = null;
		createTypedArray (prop, bean, method, values, t,
				  propertyEditorClass); 
	    }
	} else {
	    if(value == null || (param != null && value.equals(""))) return;
	    Object oval = convert(prop, value, type, propertyEditorClass);
	    if ( oval != null )
		method.invoke(bean, new Object[] { oval });
	}
    }
} catch (Exception ex) {
    throw new JasperException(ex);
}
       if (!ignoreMethodNF && (method == null)) {
           if (type == null) {
	throw new JasperException(
                   Localizer.getMessage("jsp.error.beans.noproperty",
				 prop,
				 bean.getClass().getName()));
           } else {
	throw new JasperException(
            Localizer.getMessage("jsp.error.beans.nomethod.setproperty",
				 prop,
				 type.getName(),
				 bean.getClass().getName()));
           }
       }
   }
 

import javax.servlet.ServletRequest; //导入方法依赖的package包/类
public static void introspecthelper(Object bean, String prop, String value, ServletRequest request, String param,
		boolean ignoreMethodNF) throws JasperException {
	Method method = null;
	Class<?> type = null;
	Class<?> propertyEditorClass = null;
	try {
		java.beans.BeanInfo info = java.beans.Introspector.getBeanInfo(bean.getClass());
		if (info != null) {
			java.beans.PropertyDescriptor pd[] = info.getPropertyDescriptors();
			for (int i = 0; i < pd.length; i++) {
				if (pd[i].getName().equals(prop)) {
					method = pd[i].getWriteMethod();
					type = pd[i].getPropertyType();
					propertyEditorClass = pd[i].getPropertyEditorClass();
					break;
				}
			}
		}
		if (method != null) {
			if (type.isArray()) {
				if (request == null) {
					throw new JasperException(Localizer.getMessage("jsp.error.beans.setproperty.noindexset"));
				}
				Class<?> t = type.getComponentType();
				String[] values = request.getParameterValues(param);
				// XXX Please check.
				if (values == null)
					return;
				if (t.equals(String.class)) {
					method.invoke(bean, new Object[] { values });
				} else {
					createTypedArray(prop, bean, method, values, t, propertyEditorClass);
				}
			} else {
				if (value == null || (param != null && value.equals("")))
					return;
				Object oval = convert(prop, value, type, propertyEditorClass);
				if (oval != null)
					method.invoke(bean, new Object[] { oval });
			}
		}
	} catch (Exception ex) {
		Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
		ExceptionUtils.handleThrowable(thr);
		throw new JasperException(ex);
	}
	if (!ignoreMethodNF && (method == null)) {
		if (type == null) {
			throw new JasperException(
					Localizer.getMessage("jsp.error.beans.noproperty", prop, bean.getClass().getName()));
		} else {
			throw new JasperException(Localizer.getMessage("jsp.error.beans.nomethod.setproperty", prop,
					type.getName(), bean.getClass().getName()));
		}
	}
}