Android开发之定义接口暴露数据

写了一个网络请求的工具类，然后想要获取到网络请求的结果，在网络工具类中写了一个接口，暴露除了请求到的数据

代码：

package com.lijingbo.knowweather.utils;

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


public class HttpUtils {
    private static final String TAG = "HttpUtils";

    public void getMethod(final String address) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                HttpURLConnection connection = null;
                try {
                    URL url = new URL(address);
                    connection = (HttpURLConnection) url.openConnection();
                    connection.setRequestMethod("GET");
                    connection.setConnectTimeout(5000);
                    connection.setReadTimeout(5000);
                    connection.connect();
                    if ( connection.getResponseCode() == 200 ) {
                        InputStream inputStream = connection.getInputStream();
                        ByteArrayOutputStream baos = new ByteArrayOutputStream();
                        byte[] buffers = new byte[1024];
                        int len;
                        while ( (len = inputStream.read(buffers)) != -1 ) {
                            baos.write(buffers, 0, len);
                        }
                        String result = baos.toString();
                        httpCallBack.onSuccess(result);
                        LogUtils.e(TAG, "获取到的服务器信息为：" + result);
                        baos.close();
                        inputStream.close();

                    }
                } catch ( IOException e ) {
                    //网络错误
                    httpCallBack.onError(e.toString());
                    e.printStackTrace();
                } finally {
                    if ( connection != null ) {
                        connection.disconnect();
                    }
                }
            }
        }).start();
    }

    private HttpCallBack httpCallBack;
    public void setHttpListener(HttpCallBack httpCallBack){
        this.httpCallBack=httpCallBack;
    }

    public  interface HttpCallBack {
        void onSuccess(String result);
        void onError(String error);
    }
}

想要使用该工具类的地方，这样写：

代码：

        HttpUtils httpUtils=new HttpUtils();
        httpUtils.getMethod(url);
        httpUtils.setHttpListener(new HttpUtils.HttpCallBack() {
            @Override
            public void onSuccess(String result) {
                LogUtils.e(TAG,"网络请求结果："+result);
            }

            @Override
            public void onError(String error) {
                LogUtils.e(TAG,"网络请求结果："+error);
            }
        });