android使用okhttp总是报错，代码在java工程中运行没有问题

Question

报错如下：

代码如下：

public class httpRequest {
OkHttpClient client = new OkHttpClient();

String run(String url) throws IOException {
    Request request = new Request.Builder().url(url).build();
    Response response = client.newCall(request).execute();
    if (response.isSuccessful()) {
        return response.body().string();
    } else {
        throw new IOException("Unexpected code " + response);
    }
}

}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    tv = (TextView) findViewById(R.id.tt);
    httpRequest request = new httpRequest();
    try {
        String response = request.run("https://www.baidu.com");
        tv.setText(response);
        System.out.println(response);
        Log.d("res", response);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        Log.d("error", "error!!!!!");
        e.printStackTrace();
    }
}

用okhttp3也是这样，提示找不到okhttp.okHttpClient

Answer 1

Is there any package that imports okHttp in the android project? The error message indicates that the OkHttpClient class was not found

Answer 2

Did you import the jar package or add it directly in compile?

Answer 3

When using okhttp, you need to add another package dependency

compile 'com.squareup.okio:okio:1.5.0'

Answer 4

1. The dex in DexPathList does not contain okhttpclient, which means that you did not enter the dependency package of okhttp into the apk when packaging.
2. It is recommended to switch from eclipse to android studio