HttpClient` 源码详解之`UrlEncodedFormEntity

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HttpClient 源码详解之UrlEncodedFormEntity

1. 类释义

/**
 * An entity composed of a list of url-encoded pairs.
 * This is typically useful while sending an HTTP POST request.
 *
 * @since 4.0
 */

由url编码对的列表组成的实体。当发送一个HTTP POST 请求时，这个就非常有用了。

2. 方法

• 构造器

/**
     * 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, (Charset) null);
    }

使用参数列表以及默认的编码器构造一个 UrlEncodedFormEntity。