PhpApplication2

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PhpApplication2

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android=""
    xmlns:tools=""
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="www.hui2wulian.phpapplication2.MainActivity">
    <Button
        android:id="@+id/btn_getstring"
        android:layout_width="wrap_content"                          l
        android:layout_height="wrap_content"
        android:text="普通字符串"/>
    <Button
        android:id="@+id/btn_getjsonstring"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="json字符串"/>
    <ListView
        android:id="@+id/lv_listview"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    </ListView>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android=""
    xmlns:app=""
    xmlns:tools=""                       l
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="www.hui2wulian.phpapplication2.MainActivity">
    <WebView
        android:id="@+id/wv"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    </WebView>
</WebView>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android=""
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <TextView
        android:id="@+id/tv1"                                      l
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <TextView
        android:id="@+id/tv2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android=""
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <TextView
        android:id="@+id/tv1"                          MainActivity.java
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <TextView
        android:id="@+id/tv2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

package www.hui2wulian.phpapplication2;

t.SharedPreferences;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

le.gson.Gson;
flect.TypeToken;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.HttpURLConnection;
import java.URL;
import java.util.List;

public class PhpActivity extends AppCompatActivity {List<Stu> stulist=null;
    private Handler handler=new Handler(){                               PhpActivity.java@Override
        public void handleMessage(Message msg) {super.handleMessage(msg);
            String abc=(String) msg.obj;
            Toast.makeText(PhpActivity.this,"返回的字符串为："+abc,Toast.LENGTH_SHORT).show();
            switch (msg.what){case 200:break;
                case -1:break;
                case -2:break;
                default:}}};
    @Override
    protected void onCreate(Bundle savedInstanceState) {Create(savedInstanceState);
        setContentView(R.layout.activity_php);
        final ListView listView=(ListView)findViewById(R.id.lv_listview);
        Button btn_getstring=(Button)findViewById(R.id.btn_getstring);
        Button btn_getjsonstring=(Button)findViewById(R.id.btn_getjsonstring);
        btn_getstring.setOnClickListener(new View.OnClickListener() {@Override
            public void onClick(View v) {if (getDataFromCache()){StuAdapter stuAdapter=new StuAdapter(stulist,PhpActivity.this);

                    listView.setAdapter(stuAdapter);
                }else
                {getDateFromService();
                }final String path="10.10.192.69/untitled2/index4.php";
                new Thread(){@Override
                    public void run() {super.run();
                        try {URL url=new URL(path);
                            HttpURLConnection conn=(HttpURLConnection)url.openConnection();
                            conn.setConnectTimeout(5000);
                            int code&#ResponseCode();
                            if (code==200){InputStream inputStream&#InputStream();
                                String abc=convertStreamToString(inputStream);
                                Message message=new Message();
                                message.obj=abc;
                                handler.sendMessage(message);

                            }else{}} catch (Exception e) {e.printStackTrace();
                        }}}.start();
                Toast.makeText(PhpActivity.this,"完成",Toast.LENGTH_SHORT).show();
            }});
        btn_getjsonstring.setOnClickListener(new View.OnClickListener() {@Override
            public void onClick(View v) {Toast.makeText(PhpActivity.this,"完成",Toast.LENGTH_SHORT).show();
            }});
    }public static String convertStreamToString(InputStream is) {BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        StringBuilder sb = new StringBuilder();
        String line =null ;
        try {while ((line = adLine()) != null) {sb.append(line + "n");
            }} catch (IOException e) {e.printStackTrace();
        } finally {try {is.close();
            } catch (IOException e) {e.printStackTrace();
            }}String();
    }private void getDateFromService() {final String path = "10.10.192.1/stumanage/2.php";
// 开线程
        new Thread() {@Override
            public void run() {super.run();
                //获取数据
                try {URL url = new URL(path);
                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    conn.setRequestMethod("GET");  //必须大写
                    conn.setConnectTimeout(5000);
                    Log.d("kk", "try -1 ");
                    int code = ResponseCode();
                    if (code == 200) {Log.d("zh", "code==200 ");
                        //请求成功
                        InputStream inputStream = InputStream();
                        //然后把输入流转为字符串 。上网找一个把流转为字符串的函数
                        String abc = convertStreamToString(inputStream);
                        //解析json字符串
                        Gson gson = new Gson();
                        List<Stu> stulist = gson.fromJson(abc, new TypeToken<List<Stu>>() {}.getType());
                        // 程序如果走到这个位置 。说明数据符合json格式。这时候我要把数据使用sharedpreference保存起来
                        //android 内存缓存
                        SharedPreferences sp = getSharedPreferences("person", MODE_PRIVATE); //person是文件名.
                        SharedPreferences.Editor editor = sp.edit();
                        editor.putString("studata", abc);//按照关键字 studata。  把字符串保存起来

                        Log.d("kk", "stulist 获取数据正常");
                        Message message = new Message();
                        message.obj = abc;  //定义带有数据的消息
                        message.what = 202; //202 代码获取数据正常
                        handler.sendMessage(message);
                        Log.d("kk", "发送消息正常");
                    } else {//请求失败
                        Message message = new Message();
                        message.what = -1; //-1  代码获取数据失败
                        handler.sendMessage(message);
                        Log.d("kk", "请求失败");
                    }} catch (Exception ex) {Message message = new Message();
                    message.what = -2; //-1  代码获取数据时发生异常情况
                    //发送消息
                    handler.sendMessage(message);
                    Log.d("kk", "Exception");
                }}}.start();
    }private boolean getDataFromCache(){try {SharedPreferences sp = SharedPreferences("person", MODE_PRIVATE);
            String data = sp.getString("data", "");
            if (data != "") {Gson gson = new Gson();
                List<Stu> stulist = gson.fromJson(data, new TypeToken<List<Stu>>() {}.getType());
                //暂时没有时间过期的判断
                return true;
            } else {stulist=null;
                return false;
            }}catch (Exception ex){ex.printStackTrace();
            stulist=null;
            return false;
        }}
}

package www.hui2wulian.phpapplication2;

import android.app.Activity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.util.List;

/**
 * Created by 可 on 2017/5/18.
 */
public class StuAdapter extends BaseAdapter {                      StuAdapter.javapublic List<Stu> stulist;
    public Activity activity;
    public StuAdapter(List<Stu> list, Activity activity){this.stulist=list;
        this.activity=activity;
    }@Override
    public int getCount() {return stulist.size();
    }@Override
    public Object getItem(int position) {(position);
    }@Override
    public long getItemId(int position) {return position;
    }@Override
    public View getView(int position, View convertView, ViewGroup parent) {View view&#LayoutInflater().inflate(R.layout.activity_php,null);
        TextView textView_name=(TextView)view.findViewById(R.id.tv1);
        TextView textView_age=(TextView)view.findViewById(R.id.tv2);
        Stu stu&#(position);
        textView_name.Name());
        textView_age.Age()+"");
        return view;
    }
}

package www.hui2wulian.phpapplication2;

/**
 * Created by 可 on 2017/5/18.
 */
public class Stu {private int age;
    private String name;
    public Stu() {super();                                 Stu.java
    }public Stu(int age, String name) {super();
        this.age = age;
        this.name = name;
    }public int getAge() {return age;
    }public void setAge(int age) {this.age = age;
    }public String getName() {return name;
    }public void setName(String name) {this.name = name;
    }
}

本文发布于:2024-02-01 00:22:58，感谢您对本站的认可！

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