跪求：Android studio 连接不上Tomcate

       用myeclipse将项目部署在tomcate上，浏览器可以访问，android studio模拟器访问不了，也不报错
2.代码
public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    public void loginClick(View v) {
        String path = "http://10.0.2.2:8080/Demo1//Servlet1";
            try {
                URL url = new URL(path);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.setRequestMethod("POST");
                connection.setConnectTimeout(5000);
                int code = connection.getResponseCode();
                if (code == 200) {

                 Toast.makeText(getApplicationContext(),"成功",Toast.LENGTH_SHORT).show();
                }
            } catch (Exception e) {

            }
    }
}

1、 loginClick(View v) 事件没有绑定，也可能你没贴
2、
你这么写 怎么报错？

catch (Exception e) {

            }

改成

catch (Exception e) {
                          Toast.makeText(getApplicationContext(),e.toString(),Toast.LENGTH_SHORT).show();
            }