[置顶] Android开发之开源框架OKHTTP的Get请求代码，得到json字符串方法

<span style="white-space:pre">	</span><pre name="code" class="java">/**
* Created by David Zheng on 2016/3/30.
* <p/>
* Qq：986945193
* <p/>
* 微博：http://weibo.com/mcxiaobing
*/

/**
* 异步获取到数据 开启了子线程
*
* 若是同步只需将enqueue 改为execute即可
*
* @return
*/
public String getUrlfromJson() {

OkHttpClient mHttpClient = new OkHttpClient();

Request request = new Request.Builder().url(url)
.build();
mHttpClient.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Request request, IOException e) {
//加载失败
}

@Override
public void onResponse(Response response) throws IOException {
//成功获取数据
if (response.isSuccessful()){
String json = response.body().toString();
Log.d("mainai", "onResponse() returned: " + json);

}
}
});

return url;
}