ComposeName/src/qh/lqg/utils/net/HTTPSend.java

package qh.lqg.utils.net;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.List;

/**
 * Created by XdaTk on 2014/12/21.
 * <p/>
 * HTTP请求工具类
 */
public class HTTPSend {
	/**
	 * 发送get请求
	 *
	 * @param url
	 *            请求地址
	 * @param list
	 *            请求参数
	 *
	 * @return 请求结果
	 *
	 * @throws IOException
	 */
	public static String sendGet(String url, List<HTTPParam> list)
			throws IOException {
		StringBuffer buffer = new StringBuffer(); // 用来拼接参数
		StringBuffer result = new StringBuffer(); // 用来接受返回值
		URL httpUrl = null; // HTTP URL类 用这个类来创建连接
		URLConnection connection = null; // 创建的http连接
		BufferedReader bufferedReader = null; // 接受连接受的参数
		// 如果存在参数，我们才需要拼接参数 类似于 localhost/index.html?a=a&b=b
		if (list.size() > 0) {
			for (int i = 0; i < list.size(); i++) {
				buffer.append(list.get(i).getKey())
						.append("=")
						.append(URLEncoder.encode(list.get(i).getValue(),
								"utf-8"));
				// 如果不是最后一个参数，不需要添加&
				if ((i + 1) < list.size()) {
					buffer.append("&");
				}
			}
			url = url + "?" + buffer.toString();
		}
		// 创建URL
		httpUrl = new URL(url);
		// 建立连接
		connection = httpUrl.openConnection();
		connection
				.setRequestProperty("accept",
						"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
		connection.setRequestProperty("connection", "keep-alive");
		connection
				.setRequestProperty("user-agent",
						"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0");
		connection.connect();
		// 接受连接返回参数
		bufferedReader = new BufferedReader(new InputStreamReader(
				connection.getInputStream()));
		String line;
		while ((line = bufferedReader.readLine()) != null) {
			result.append(line);
		}
		bufferedReader.close();
		return result.toString();
	}

	/**
	 * 发送Post请求
	 *
	 * @param url
	 *            请求地址
	 * @param list
	 *            请求参数
	 *
	 * @return 请求结果
	 *
	 * @throws IOException
	 */
	public static String sendPost(String url, List<HTTPParam> list)
			throws IOException {
		StringBuffer buffer = new StringBuffer(); // 用来拼接参数
		StringBuffer result = new StringBuffer(); // 用来接受返回值
		URL httpUrl = null; // HTTP URL类 用这个类来创建连接
		URLConnection connection = null; // 创建的http连接
		PrintWriter printWriter = null;
		BufferedReader bufferedReader; // 接受连接受的参数
		// 创建URL
		httpUrl = new URL(url);
		// 建立连接
		connection = httpUrl.openConnection();
		connection
				.setRequestProperty("accept",
						"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
		connection.setRequestProperty("connection", "keep-alive");
		connection
				.setRequestProperty("user-agent",
						"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0");
		connection.setDoOutput(true);
		connection.setDoInput(true);
		printWriter = new PrintWriter(connection.getOutputStream());
		if (list.size() > 0) {
			for (int i = 0; i < list.size(); i++) {
				buffer.append(list.get(i).getKey())
						.append("=")
						.append(URLEncoder.encode(list.get(i).getValue(),
								"utf-8"));
				// 如果不是最后一个参数，不需要添加&
				if ((i + 1) < list.size()) {
					buffer.append("&");
				}
			}
		}
		printWriter.print(buffer.toString());
		printWriter.flush();
		connection.connect();
		// 接受连接返回参数
		bufferedReader = new BufferedReader(new InputStreamReader(
				connection.getInputStream()));
		String line;
		while ((line = bufferedReader.readLine()) != null) {
			result.append(line);
		}
		bufferedReader.close();
		return result.toString();
	}
}