android获取网络新版本数据(json格式)并显示Demo

package zz.itcast.mobileSafe.activity;

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import zz.itcast.mobileSafe.utils.StreamUtils;

import android.app.Activity;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

@SuppressWarnings("unused")
public class SplashActivity extends Activity {

	private TextView tv_version;
	private String versionName;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		intiViews();
		tv_version.setText("版本名"   getVersionName());
		checkVersion();
	}

	private void intiViews() {
		tv_version = (TextView) findViewById(R.id.tv_version);
	}

	private String getVersionName() {

		PackageManager packageManager = getPackageManager();
		try {
			PackageInfo packageInfo = packageManager.getPackageInfo(
					getPackageName(), 0);
			versionName = packageInfo.versionName;
			int versionCode = packageInfo.versionCode;
			System.out.println(versionCode "---" versionName);
		} catch (NameNotFoundException e) {
			e.printStackTrace();
		}
		return versionName;
	}

	private void checkVersion() {
		// 进行联网操作，因为是耗时操作，需要放在子线程中去做
		new Thread(new Runnable() {

			@Override
			public void run() {
				try {
					URL url = new URL("http://192.168.149.2:8080/update.json");
					try {
						HttpURLConnection conc = (HttpURLConnection) url
								.openConnection();
						conc.setConnectTimeout(5000);
						conc.setRequestMethod("GET");
						conc.setReadTimeout(5000);
						conc.connect();
						int code = conc.getResponseCode();
						if(code==200){
							//连接成功，获取输入流
							InputStream stream = conc.getInputStream();
							String result = StreamUtils.StreamToString(stream);
							Log.d("网络结果", result);
						}
					} catch (IOException e) {
						e.printStackTrace();
					}
				} catch (MalformedURLException e) {
					e.printStackTrace();
				}
			}
		}).start();
	}
}

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资源文件列表

╩╓╗·╬└╩┐/.classpath , 364
╩╓╗·╬└╩┐/.project , 848
╩╓╗·╬└╩┐/.settings/org.eclipse.jdt.core.prefs , 177
╩╓╗·╬└╩┐/AndroidManifest.xml , 988
╩╓╗·╬└╩┐/bin/AndroidManifest.xml , 988
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/BuildConfig.class , 367
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/R$attr.class , 373
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/R$dimen.class , 494
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/R$drawable.class , 475
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/R$id.class , 486
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/R$layout.class , 436
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/R$menu.class , 421
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/R$string.class , 505
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/R$style.class , 464
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/R.class , 783
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/SplashActivity$1.class , 1891
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/activity/SplashActivity.class , 2491
╩╓╗·╬└╩┐/bin/classes/zz/itcast/mobileSafe/utils/StreamUtils.class , 1303
╩╓╗·╬└╩┐/bin/classes.dex , 444992
╩╓╗·╬└╩┐/bin/dexedLibs/android-support-v4-401a7190f750c5f8811cbdefa1d03ae4.jar , 149766
╩╓╗·╬└╩┐/bin/jarlist.cache , 119
╩╓╗·╬└╩┐/bin/res/drawable-hdpi/ic_launcher.png , 1184
╩╓╗·╬└╩┐/bin/res/drawable-hdpi/launcher_bg.png , 77883
╩╓╗·╬└╩┐/bin/res/drawable-mdpi/ic_launcher.png , 809
╩╓╗·╬└╩┐/bin/res/drawable-xhdpi/ic_launcher.png , 1545
╩╓╗·╬└╩┐/bin/res/drawable-xxhdpi/ic_launcher.png , 2116
╩╓╗·╬└╩┐/bin/resources.ap_ , 88583
╩╓╗·╬└╩┐/bin/╩╓╗·╬└╩┐.apk , 243615
╩╓╗·╬└╩┐/gen/zz/itcast/mobileSafe/activity/BuildConfig.java , 171
╩╓╗·╬└╩┐/gen/zz/itcast/mobileSafe/activity/R.java , 2665
╩╓╗·╬└╩┐/ic_launcher-web.png , 13911
╩╓╗·╬└╩┐/libs/android-support-v4.jar , 385685
╩╓╗·╬└╩┐/proguard-project.txt , 781
╩╓╗·╬└╩┐/project.properties , 563
╩╓╗·╬└╩┐/res/drawable-hdpi/ic_launcher.png , 1128
╩╓╗·╬└╩┐/res/drawable-hdpi/launcher_bg.png , 81080
╩╓╗·╬└╩┐/res/drawable-mdpi/ic_launcher.png , 757
╩╓╗·╬└╩┐/res/drawable-xhdpi/ic_launcher.png , 1582
╩╓╗·╬└╩┐/res/drawable-xxhdpi/ic_launcher.png , 2441
╩╓╗·╬└╩┐/res/layout/activity_main.xml , 1006
╩╓╗·╬└╩┐/res/menu/main.xml , 261
╩╓╗·╬└╩┐/res/values/dimens.xml , 218
╩╓╗·╬└╩┐/res/values/strings.xml , 227
╩╓╗·╬└╩┐/res/values/styles.xml , 695
╩╓╗·╬└╩┐/res/values-sw600dp/dimens.xml , 201
╩╓╗·╬└╩┐/res/values-sw720dp-land/dimens.xml , 275
╩╓╗·╬└╩┐/res/values-v11/styles.xml , 332
╩╓╗·╬└╩┐/res/values-v14/styles.xml , 389
╩╓╗·╬└╩┐/src/zz/itcast/mobileSafe/activity/SplashActivity.java , 2314
╩╓╗·╬└╩┐/src/zz/itcast/mobileSafe/utils/StreamUtils.java , 737