Android利用HttpURLConnection實現類比登入

標籤：

　　最近在做一個APP，需要類比登入教務處，之前曾經用HttpClient做過，點這裡，但是發現最新的Android SDK已經不支援Httpclient了，所以只好在琢磨一下HttpURLConnection實現了，其中一個問題浪費了不少時間，下面這行代碼一旦添加就無法登入：

httpURLConnection.setRequestProperty("Content-Type","text/html; charset=GBK");

　　貼一下效果，由於是實現類比登入，就沒有解析，主要是能用Cookie訪問到。

　　此外，有一個重要發現，用電腦和手機對應的Cookie都能登入，說明伺服器可以對應多個Cookie！

　　真是一路磕磕絆絆！

　　貼下主要代碼：

　　1.結構

　　

 

　　2.MainActivity

package io.github.zhaoyu1995.uprtest;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends AppCompatActivity {    private TextView kebiao;    private MyTasks task;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        kebiao = (TextView) findViewById(R.id.kebiao);        task = new MyTasks("201445004", "******", new OnFinishTask() {            @Override            public void onFinish(String data) {                kebiao.setText(data);            }        });        task.execute();    }}

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　　3.MyTask

package io.github.zhaoyu1995.uprtest;import android.os.AsyncTask;import java.io.BufferedReader;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import java.util.Map;public class MyTasks extends AsyncTask<Void, Void, String> {    private OnFinishTask onFinishTask;    private String user;    private String pass;    private String result;    private List<String> finalCookie = new ArrayList<String>();    private String jiaowuchu = "http://zhjw.dlut.edu.cn/loginAction.do";    public MyTasks (String user, String pass, OnFinishTask onFinishTask) {        this.user = user;        this.pass = pass;        this.onFinishTask = onFinishTask;    }    @Override    protected String doInBackground(Void... voids) {        URL url;        HttpURLConnection httpURLConnection;        try {            url = new URL(jiaowuchu);            httpURLConnection = (HttpURLConnection) url.openConnection();            httpURLConnection.setDoOutput(true);//是否向連結輸出            httpURLConnection.setDoInput(true);            httpURLConnection.setRequestMethod("POST");            httpURLConnection.setUseCaches(false);            httpURLConnection.setInstanceFollowRedirects(true);            //不知道為什麼加了這一行就不行了            httpURLConnection.setRequestProperty("Content-Type","text/html; charset=GBK");            httpURLConnection.setConnectTimeout(10*1000);//連線逾時 單位毫秒            httpURLConnection.setReadTimeout(10*1000);//讀取逾時 單位毫秒            // 串連，從postUrl.openConnection()至此的配置必須要在connect之前完成，            // 要注意的是connection.getOutputStream會隱含的進行connect。            httpURLConnection.connect();            DataOutputStream out = new DataOutputStream(httpURLConnection                    .getOutputStream());            StringBuffer params = new StringBuffer();            params.append("zjh").append("=").append(user).append("&")                    .append("mm").append("=").append(pass);            httpURLConnection.getOutputStream().write(params.toString().getBytes("gb2312"));            out.flush();            out.close();            BufferedReader reader = new BufferedReader(new InputStreamReader(                    httpURLConnection.getInputStream(), "gb2312"));            String line;            while ((line = reader.readLine()) != null) {                result = result + line;            }            reader.close();            result="";            Map<String, List<String>> header = httpURLConnection.getHeaderFields();            List<String> cookies = header.get("Set-Cookie");            Iterator<String> it = cookies.iterator();            StringBuffer sbu = new StringBuffer();        //  sbu.append("eos_style_cookie=default; ");            while(it.hasNext()){                sbu.append(it.next());            }            result = cookies.size()+"";            for (int i = 0; i < cookies.size(); i++) {                finalCookie.add(cookies.get(i));            }            result = result+finalCookie.get(0);            result = result+"--------------"+finalCookie.get(1);            httpURLConnection.disconnect();        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        //get課表        try {            url = new URL("http://zhjw.dlut.edu.cn/xkAction.do?actionType=6");            httpURLConnection = (HttpURLConnection) url.openConnection();            //必要的設定            httpURLConnection.setConnectTimeout(10*1000);//連線逾時 單位毫秒            httpURLConnection.setReadTimeout(10*1000);//讀取逾時 單位毫秒            httpURLConnection.setRequestProperty("Cookie", finalCookie.get(0)+", "+finalCookie.get(1));            System.out.println(finalCookie.get(0)+", "+finalCookie.get(1));//            httpURLConnection.setRequestProperty("Cookie", "JSESSIONID=nprNP171vDeCHb_5hawDv; path=/, NSC_kjbpxv-iuuq=2385a3d4705debd5f29101f47dcbd3b0e664f181853b4741569229a0561453d027e6fa67;path=/");            httpURLConnection.connect();            BufferedReader reader = new BufferedReader(new InputStreamReader(httpURLConnection.getInputStream(), "gb2312"));            String lines;            //result = "";            while ((lines = reader.readLine()) != null) {                result = result + lines;            }            reader.close();            // 中斷連線            result = result + httpURLConnection.getResponseCode();            httpURLConnection.disconnect();        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return result;    }    @Override    protected void onPostExecute(String s) {        super.onPostExecute(s);        onFinishTask.onFinish(s);    }}

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　　4.OnFinishTask

package io.github.zhaoyu1995.uprtest;public interface OnFinishTask {    public void onFinish(String data);}

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Android利用HttpURLConnection實現類比登入