网络请求以及网络请求下载图片的工具类 android开发java工具类

package cc.jiusan.www.utils;

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.util.EntityUtils;

import android.content.Context;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

public class HttpUtils {

	/**

	 * 判断当前网络是否连接

	 *

	 * @param context

	 * @return

	 */

	public static boolean isNetWorkConn(Context context) {

		ConnectivityManager manager = (ConnectivityManager) context

				.getSystemService(Context.CONNECTIVITY_SERVICE);

		NetworkInfo info = manager.getActiveNetworkInfo();

		if (info != null) {

			return info.isConnected();

		}

		return false;

	}

	// 网络请求下载图片

	public static byte[] loadImageFromNet(String url) {

		//OKHttp

		try {

			HttpClient client = new DefaultHttpClient();

			HttpGet getRequest = new HttpGet(url);

			HttpResponse response = client.execute(getRequest);

			// 500 服务器 错误

			if (response.getStatusLine().getStatusCode() == 200) {

				HttpEntity entity = response.getEntity();

				return EntityUtils.toByteArray(entity);

			}

		} catch (Exception e) {

			e.printStackTrace();

		}

		return null;

	}

}

巴特西

网络请求以及网络请求下载图片的工具类 android开发java工具类

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