httpUtils工具类

最新推荐文章于 2025-07-26 16:53:10 发布

原创最新推荐文章于 2025-07-26 16:53:10 发布 · 685 阅读

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这是一个Android平台下的HttpUtils工具类实现，使用HttpURLConnection进行网络请求。类中包含了一个内部Handler用于处理请求的成功和错误回调，同时定义了一个HttpUtilListener接口来供外部接收网络请求的结果。


import android.annotation.SuppressLint;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

import com.google.gson.Gson;

import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;

import bwei.com.day_0517_123.adapter.MyBase;
import bwei.com.day_0517_123.bean.SheHuiBean;



 public class HttpUtils {

    private static final String TAG = "HttpUtils-----";
    private static final int SUCCESS = 0;
    private static final int ERROR = 1;
    private HttpUtilListener httpUtilListener;


    @SuppressLint("HandlerLeak")
    private Handler handler = new Handler() {

        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);

            switch (msg.what) {

                case SUCCESS:
                    String json = (String) msg.obj;
                    Log.d(TAG, "handleMessage: "+json);
                    httpUtilListener.getSuccess(json);

                    break;
                case ERROR:
                    String error= (String) msg.obj;
                    Log.d(TAG, "handleMessage: "+error);
                    httpUtilListener.getError(error);
                    break;
            }

        }
    };


    //单利模式
    private static HttpUtils httpUtils = new HttpUtils();

    //无参构造
    private HttpUtils() {


    }

    public static HttpUtils getInstance() {

        if (httpUtils == null) {
            httpUtils = new HttpUtils();

        }
        return httpUtils;
    }

    //封装get
    public void get(final String url) {

        //开启线程
        new Thread() {
            @Override
            public void run() {

                try {
                    URL u = new URL(url);
                    HttpURLConnection con = (HttpURLConnection) u.openConnection();

                    con.setConnectTimeout(5000);

                    if (con.getResponseCode() == 200) {
                        InputStream inputStream = con.getInputStream();
                        String json = ConUtils.in(inputStream);
                        Log.d(TAG, "网络请求成功：！！！！！！！！！！！！！！！！！！！"+json);
                        //发送消息
                        Message me = new Message();
                        me.what = SUCCESS;
                        me.obj = json;

                        //发送hanlder请求

                             handler.sendMessage(me);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                    Message m = new Message();
                    m.what = ERROR;
                    m.obj = e.getMessage();
                    //发送handler请求
                    handler.sendMessage(m);

                }
            }
        }.start();
    }


    //定义接口
    public interface HttpUtilListener {

        void getSuccess(String json);

        void getError(String error);
    }

    //设置外部访问的方法
    public void setHttpUtilsListener(HttpUtilListener httpUtilsListener) {
        this.httpUtilListener = httpUtilsListener;


    }


}