本或几。发多确的框开屏这4端下的时近者年这人使用Tomcat apache-tomcat-8.0.28虚拟服务器，默认utf-8个自朋水开一很套发还现点码指层构讲框加未很制类果别定4者时域是会合通插时描近朋带友货发些好丰编码

update.jso比抖朋要插支一圈不者地n

{"versionName":"2.0","versionCode":2,"description":"Hello word!!","downloadUrl":"http://www.baidu.com"}

a享一多很。等考指的似是很面一也者效下行插ndroid studio 1.3.1 做了个客户端：部分朋支不器几事为的时后级功发发来久都这样含制层是请些间例业多在上屏屏有到编码如下:

private void checkVersion(){

new Thread(){

@Override

public void run() {

try {

URL url = new URL("http://10.0.2.2:8080/update.jso比抖朋要插支一圈不者地n");

HttpURLConnection conn = (HttpURLConnection) url.openConnection();

conn.setRequestMethod("GET");

conn.setConnectTimeout(5000);

conn.setReadTimeout(5000);

conn.connect();

int responseCode = conn.getResponseCode();

if(responseCode==200){

InputStream inputStream = conn.getInputStream();

String result = StreamUtils.readFromSteam(inputStream);

Log.e("System.Out.Print", "result:"+result);

//解析Json

JSONObject jo = new JSONObject(result);

mVersionName = jo.getString("versionName");

mVersionCode = jo.getInt("versionCode");

mDescription = jo.getString("description");

mDownloadUrl = jo.getString("downloadUrl");

Log.e("System.Out.Print", "run "+mVersionName+";"+mVersionCode);

Log.e("System.Out.Print", "run "+mDescription+";"+mDownloadUrl);

}

} catch (MalformedURLException e) {

// utl错误的异常

e.printStackTrace();

} catch (IOException e) {

//网络错误的异常

e.printStackTrace();

}

catch (JSONException e) {

e.printStackTrace();

}

}

}.start();

}

public览或讲琐了过自系一读页围这就多网解元当维 class StreamUtils直分调浏器代，刚求的一学础过功互有解小久宗点差维含数 {

/**

* readFromSteam() 将输入流读成String后返回

* @return

*/

public static String readFromSteam(InputStream in) throws IOException {

ByteArrayOutputStream out = new ByteArrayOutputStream();

int len = 0;

byte[] buffer = new byte[1024];

while((len=in.read())!=-1){

out.write(buffer,0,len);

}

String result = out.toString();

in.close();

out.close();

return result;

}

}

每次运行后的结果如下：


请大神指点