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Java example source code file (UrlEncodedFormEntity.java)

This example source code file (UrlEncodedFormEntity.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

abstracthttpentity, io, list, namevaluepair, notthreadsafe, string, stringentity, unsupportedencodingexception, urlencodedformentity, util

The UrlEncodedFormEntity.java example source code

/*
 * ====================================================================
 *
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

package org.apache.http.client.entity;

import java.io.UnsupportedEncodingException;
import java.util.List;

import org.apache.http.annotation.NotThreadSafe;

import org.apache.http.NameValuePair;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.entity.StringEntity;
import org.apache.http.protocol.HTTP;

/**
 * An entity composed of a list of url-encoded pairs.
 * This is typically useful while sending an HTTP POST request.
 *
 * @since 4.0
 */
@NotThreadSafe // AbstractHttpEntity is not thread-safe
public class UrlEncodedFormEntity extends StringEntity {
  
    /**
     * Constructs a new {@link UrlEncodedFormEntity} with the list
     * of parameters in the specified encoding.
     * 
     * @param parameters list of name/value pairs
     * @param encoding encoding the name/value pairs be encoded with
     * @throws UnsupportedEncodingException if the encoding isn't supported
     */
    public UrlEncodedFormEntity (
        final List <? extends NameValuePair> parameters, 
        final String encoding) throws UnsupportedEncodingException {
        super(URLEncodedUtils.format(parameters, encoding), encoding);
        setContentType(URLEncodedUtils.CONTENT_TYPE + HTTP.CHARSET_PARAM + 
                (encoding != null ? encoding : HTTP.DEFAULT_CONTENT_CHARSET));
    }

    /**
     * Constructs a new {@link UrlEncodedFormEntity} with the list
     * of parameters with the default encoding of {@link HTTP#DEFAULT_CONTENT_CHARSET}
     * 
     * @param parameters list of name/value pairs
     * @throws UnsupportedEncodingException if the default encoding isn't supported
     */
    public UrlEncodedFormEntity (
        final List <? extends NameValuePair> parameters) throws UnsupportedEncodingException {
        this(parameters, HTTP.DEFAULT_CONTENT_CHARSET);
    }
    
}

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