1 package com.example.administrator.test_21;
 2 
 3 import android.os.Message;
 4 import android.os.StrictMode;
 5 import android.support.v7.app.AppCompatActivity;
 6 import android.os.Bundle;
 7 import android.util.Log;
 8 import android.view.View;
 9 import android.widget.Button;
10 import android.widget.EditText;
11 import android.widget.TextView;
12 
13 import java.io.BufferedReader;
14 import java.io.InputStreamReader;
15 import java.net.HttpURLConnection;
16 import java.net.URL;
17 import java.util.HashMap;
18 import java.util.Map;
19 
20 public class MainActivity extends AppCompatActivity {
21 
22     Button getBtn;
23     TextView txt;
24     EditText editname, editpsd, editemail;
25 
26     @Override
27     protected void onCreate(Bundle savedInstanceState) {
28         super.onCreate(savedInstanceState);
29         setContentView(R.layout.activity_main);
30         getBtn=(Button)findViewById(R.id.button);
31         editpsd=(EditText)findViewById(R.id.editText);
32         editname=(EditText)findViewById(R.id.editText2);
33         editemail=(EditText)findViewById(R.id.editText3);
34         txt=(TextView)findViewById(R.id.textView2);
35         setVersion(); // 设置线程策略  /////////////////////
36         getBtn.setOnClickListener(new mClick());
37     }
38 
39     class mClick implements View.OnClickListener
40     {
41         StringBuilder stringBuilder = new StringBuilder();
42         BufferedReader buffer = null;
43         HttpURLConnection connGET = null;
44         @Override
45         public void onClick(View v) {
46             //获取界面文本框中的文字内容
47             String name=editname.getText().toString();
48             String psd=editpsd.getText().toString();
49             String email=editemail.getText().toString();
50             try{
51                 String str="http://10.30.92.169/test/play-post.php?psd="+
52                         psd+"&name="+name+"&email="+email;
53                 URL url = new URL(str);  //构建Web服务器的url地址
54                 connGET = (HttpURLConnection) url.openConnection();
55                 connGET.setConnectTimeout(5000);  //设置超时的时间，5000毫秒即5秒
56                 connGET.setRequestMethod("GET"); //设置获取数据的方式为GET
57                 if ( connGET.getResponseCode() == 200) {
58                     buffer = new BufferedReader(new InputStreamReader(connGET.getInputStream()));
59                     for(String s = buffer.readLine();s != null; s = buffer.readLine()){
60                         stringBuilder.append(s);    //构造字符串
61                     }
62                     txt.setText(stringBuilder);
63                     buffer.close();
64                 }
65             }
66             catch(Exception e){
67                 e.printStackTrace();
68                 txt.setText("get 提交 err.....");
69             }
70         }
71     }
72 
73     void setVersion()
74     {
75         StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
76                 .detectDiskReads()
77                 .detectDiskWrites()
78                 .detectNetwork() // 这里可以替换为detectAll() 就包括了磁盘读写和网络I/O
79                 .penaltyLog() //打印logcat，也可以定位到dropbox，通过文件保存相应的log
80                 .build());
81     }
82 }

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3     package="com.example.administrator.test_21">
 4 
 5     <application
 6         android:allowBackup="true"
 7         android:icon="@mipmap/ic_launcher"
 8         android:label="@string/app_name"
 9         android:supportsRtl="true"
10         android:theme="@style/AppTheme">
11         <activity android:name=".MainActivity">
12             <intent-filter>
13                 <action android:name="android.intent.action.MAIN" />
14 
15                 <category android:name="android.intent.category.LAUNCHER" />
16             </intent-filter>
17         </activity>
18     </application>
19     <uses-permission android:name="android.permission.INTERNET"/>
20     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
21     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
22 
23 </manifest>