package com.Interface.util;

import java.util.Iterator;

import java.util.Map;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.NameValuePair;

import org.apache.commons.httpclient.methods.GetMethod;

import org.apache.commons.httpclient.methods.PostMethod;

import org.apache.commons.httpclient.params.HttpMethodParams;

/**

 * HTTP请求工具类

 *

 * @author 华文

 * @date 2019年7月5日

 * @version 1.0

 */

public class HttpClientUtil {

    /**

     * Get请求

     *

     * @param url

     * @return

     * @throws Exception

     */

    public static String httpGet(String url) throws Exception {

        HttpClient client = new HttpClient();

        GetMethod method = new GetMethod(url);

        // 设置http请求字符集

        method.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "UTF-8");

        client.executeMethod(method);

        return method.getResponseBodyAsString();

    }

    /**

     * Post请求

     *

     * @param url

     * @param requestParam

     * @return

     * @throws Exception

     */

    public static String httpPost(String url, Map<String, String> requestParam) throws Exception {

        HttpClient client = new HttpClient();

        PostMethod method = new PostMethod(url);

        // 设置http请求字符集

        method.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "UTF-8");

        // 创建post请求参数数组

        NameValuePair[] requestParams = new NameValuePair[requestParam.size()];

        // 遍历param添加参数

        Iterator<Map.Entry<String, String>> it = requestParam.entrySet().iterator();

        for (int i = 0; it.hasNext(); i++) {

            Map.Entry<String, String> entry = it.next();

            requestParams[i] = new NameValuePair(entry.getKey(), entry.getValue());

        }

        // 设置请求内容

        method.setRequestBody(requestParams);

        client.executeMethod(method);

        return method.getResponseBodyAsString();

    }

}