AndroidStudio多線程端口掃描

Android Studio 3.1.4java

Build #AI-173.4907809, built on July 24, 2018
JRE: 1.8.0_152-release-1024-b02 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0android

Lucky~數組

1.XML佈局界面文件app

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3  xmlns:app="http://schemas.android.com/apk/res-auto"
 4  xmlns:tools="http://schemas.android.com/tools"
 5  android:layout_width="match_parent"
 6  android:layout_height="match_parent"
 7  tools:context=".PortScan">
 8 
 9     <TextView  10         android:id="@+id/textView3"
 11  android:layout_width="75dp"
 12  android:layout_height="26dp"
 13  android:layout_marginBottom="8dp"
 14  android:layout_marginEnd="8dp"
 15  android:layout_marginStart="8dp"
 16  android:layout_marginTop="8dp"
 17  android:text="PortMin"
 18  android:textColor="#FF00FF"
 19  android:textSize="18sp"
 20  app:layout_constraintBottom_toBottomOf="parent"
 21  app:layout_constraintEnd_toEndOf="parent"
 22  app:layout_constraintHorizontal_bias="0.0"
 23  app:layout_constraintStart_toStartOf="parent"
 24  app:layout_constraintTop_toTopOf="parent"
 25  app:layout_constraintVertical_bias="0.25" />
 26 
 27     <TextView  28         android:id="@+id/textView4"
 29  android:layout_width="75dp"
 30  android:layout_height="26dp"
 31  android:layout_marginBottom="8dp"
 32  android:layout_marginEnd="8dp"
 33  android:layout_marginStart="8dp"
 34  android:layout_marginTop="8dp"
 35  android:text="PortMax"
 36  android:textColor="#FF00FF"
 37  android:textSize="18sp"
 38  app:layout_constraintBottom_toBottomOf="parent"
 39  app:layout_constraintEnd_toEndOf="parent"
 40  app:layout_constraintHorizontal_bias="0.65"
 41  app:layout_constraintStart_toStartOf="parent"
 42  app:layout_constraintTop_toTopOf="parent"
 43  app:layout_constraintVertical_bias="0.25" />
 44 
 45     <TextView  46         android:id="@+id/textView"
 47  android:layout_width="137dp"
 48  android:layout_height="42dp"
 49  android:layout_marginBottom="8dp"
 50  android:layout_marginEnd="8dp"
 51  android:layout_marginStart="8dp"
 52  android:layout_marginTop="8dp"
 53  android:text="PortScan"
 54  android:textColor="#FF00FF"
 55  android:textSize="30sp"
 56  app:layout_constraintBottom_toBottomOf="parent"
 57  app:layout_constraintEnd_toEndOf="parent"
 58  app:layout_constraintHorizontal_bias="0.05"
 59  app:layout_constraintStart_toStartOf="parent"
 60  app:layout_constraintTop_toTopOf="parent"
 61  app:layout_constraintVertical_bias="0.00999999" />
 62 
 63     <TextView  64         android:id="@+id/textView2"
 65  android:layout_width="75dp"
 66  android:layout_height="26dp"
 67  android:layout_marginBottom="8dp"
 68  android:layout_marginEnd="8dp"
 69  android:layout_marginStart="8dp"
 70  android:layout_marginTop="8dp"
 71  android:text="IP"
 72  android:textColor="#FF00FF"
 73  android:textSize="18sp"
 74  app:layout_constraintBottom_toBottomOf="parent"
 75  app:layout_constraintEnd_toEndOf="parent"
 76  app:layout_constraintHorizontal_bias="0.0"
 77  app:layout_constraintStart_toStartOf="parent"
 78  app:layout_constraintTop_toTopOf="parent"
 79  app:layout_constraintVertical_bias="0.13999999" />
 80 
 81     <EditText  82         android:id="@+id/ipedit"
 83  android:layout_width="267dp"
 84  android:layout_height="42dp"
 85  android:layout_marginBottom="8dp"
 86  android:layout_marginEnd="8dp"
 87  android:layout_marginStart="8dp"
 88  android:layout_marginTop="8dp"
 89  android:ems="10"
 90  android:inputType="textPersonName"
 91  android:text="127.0.0.1"
 92  android:textSize="18sp"
 93  app:layout_constraintBottom_toBottomOf="parent"
 94  app:layout_constraintEnd_toEndOf="parent"
 95  app:layout_constraintHorizontal_bias="1.0"
 96  app:layout_constraintStart_toStartOf="parent"
 97  app:layout_constraintTop_toTopOf="parent"
 98  app:layout_constraintVertical_bias="0.13" />
 99 
100     <EditText 101         android:id="@+id/portmin"
102  android:layout_width="80dp"
103  android:layout_height="42dp"
104  android:layout_marginBottom="8dp"
105  android:layout_marginEnd="8dp"
106  android:layout_marginStart="8dp"
107  android:layout_marginTop="8dp"
108  android:ems="10"
109  android:inputType="textPersonName"
110  android:text="1"
111  app:layout_constraintBottom_toBottomOf="parent"
112  app:layout_constraintEnd_toEndOf="parent"
113  app:layout_constraintHorizontal_bias="0.35"
114  app:layout_constraintStart_toStartOf="parent"
115  app:layout_constraintTop_toTopOf="parent"
116  app:layout_constraintVertical_bias="0.239" />
117 
118     <EditText 119         android:id="@+id/portmax"
120  android:layout_width="80dp"
121  android:layout_height="42dp"
122  android:layout_marginBottom="8dp"
123  android:layout_marginEnd="8dp"
124  android:layout_marginStart="8dp"
125  android:layout_marginTop="8dp"
126  android:ems="10"
127  android:inputType="textPersonName"
128  android:text="65535"
129  app:layout_constraintBottom_toBottomOf="parent"
130  app:layout_constraintEnd_toEndOf="parent"
131  app:layout_constraintHorizontal_bias="1.0"
132  app:layout_constraintStart_toStartOf="parent"
133  app:layout_constraintTop_toTopOf="parent"
134  app:layout_constraintVertical_bias="0.239" />
135 
136     <Button 137         android:id="@+id/button"
138  android:layout_width="369dp"
139  android:layout_height="42dp"
140  android:layout_marginBottom="8dp"
141  android:layout_marginEnd="8dp"
142  android:layout_marginStart="8dp"
143  android:layout_marginTop="180dp"
144  android:onClick="play"
145  android:text="play"
146  android:textColor="#FF00FF"
147  app:layout_constraintBottom_toBottomOf="parent"
148  app:layout_constraintEnd_toEndOf="parent"
149  app:layout_constraintStart_toStartOf="parent"
150  app:layout_constraintTop_toTopOf="parent"
151  app:layout_constraintVertical_bias="0.005" />
152 
153     <TextView 154         android:id="@+id/tv"
155  android:layout_width="368dp"
156  android:layout_height="23dp"
157  android:layout_marginBottom="16dp"
158  android:layout_marginEnd="8dp"
159  android:layout_marginStart="8dp"
160  android:layout_marginTop="8dp"
161  android:text="ing..."
162  android:textColor="#FF00FF"
163  android:textSize="14sp"
164  app:layout_constraintBottom_toBottomOf="parent"
165  app:layout_constraintEnd_toEndOf="parent"
166  app:layout_constraintStart_toStartOf="parent"
167  app:layout_constraintTop_toBottomOf="@+id/button"
168  app:layout_constraintVertical_bias="1.0" />
169 
170     <ListView 171         android:id="@+id/listview"
172  android:layout_width="378dp"
173  android:layout_height="287dp"
174  android:layout_marginBottom="8dp"
175  android:layout_marginEnd="8dp"
176  android:layout_marginStart="16dp"
177  android:layout_marginTop="8dp"
178  app:layout_constraintBottom_toTopOf="@+id/tv"
179  app:layout_constraintEnd_toEndOf="parent"
180  app:layout_constraintStart_toStartOf="parent"
181  app:layout_constraintTop_toBottomOf="@+id/button"
182  app:layout_constraintVertical_bias="1.0" />
183 
184 </android.support.constraint.ConstraintLayout>

2.添加權限socket

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.shawna.portscan">
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

    <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme">
        <activity android:name=".PortScan">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

3.項目代碼
ide

 1 package com.shawna.portscan;  2 
 3 import android.os.Handler;  4 import android.os.Message;  5 import android.support.v7.app.AlertDialog;  6 import android.support.v7.app.AppCompatActivity;  7 import android.os.Bundle;  8 import android.view.View;  9 import android.widget.ArrayAdapter;  10 import android.widget.EditText;  11 import android.widget.ListView;  12 import android.widget.TextView;  13 
 14 import java.net.InetSocketAddress;  15 import java.net.Socket;  16 import java.net.SocketAddress;  17 import java.util.concurrent.ExecutorService;  18 import java.util.concurrent.Executors;  19 
 20 public class PortScan extends AppCompatActivity {  21 
 22     int portmin = 1;//最小ip取值
 23     int portmax = 65535;//最大ip取值
 24     String ip;//ip地址
 25     String[] ports = new String[0];//成功鏈接的端口保存數組
 26     String portstext;//成功鏈接的端口文本
 27 
 28  @Override  29     protected void onCreate(Bundle savedInstanceState) {  30         super.onCreate(savedInstanceState);  31  setContentView(R.layout.activity_port_scan);  32 
 33         //狀態條顯示初始化信息
 34         thistext("處理器核心數 " + thisGetCPUnum() + " 核，將使用 " + thisGetCPUnum()*2 + " 線程執行...");  35  }  36 
 37     public void play(View view){  38         //獲取各個編輯框組件的內容
 39         EditText ipEdit = (EditText) findViewById(R.id.ipedit);  40         EditText piedit = (EditText) findViewById(R.id.portmin);  41         EditText paedit = (EditText) findViewById(R.id.portmax);  42         ip = ipEdit.getText().toString();  43         portmin = Integer.parseInt(piedit.getText().toString());  44         portmax = Integer.parseInt(paedit.getText().toString());  45 
 46         //判斷輸入的內容是否合法
 47         if (iftext() == false){  48             AlertDialog.Builder message = new AlertDialog.Builder(this);  49             message.setMessage("有數據漏填，請檢查！");  50             AlertDialog m1 = message.create();  51  m1.show();  52             return;  53  }  54 
 55         //啓動線程執行任務
 56         thisiflink thisiflink = new thisiflink();  57  thisiflink.start();  58  }  59 
 60     //獲取線程傳出的消息更新UI
 61     private Handler.Callback mCallback = new Handler.Callback() {  62  @Override  63         public boolean handleMessage(Message msg) {  64             if (msg.what == 1) {  65                 if (msg.obj == "更新UI列表"){  66                     if (portstext == null || portstext.length() == 0) {  67                         return false;  68                     } else {  69                         //以#爲分隔符分割文本
 70                         ports = portstext.split("\\#");  71                         //調用函數更新UI狀態條
 72  thislist(ports);  73  }  74  }  75             }else if (msg.what == 1011){  76                 if (msg.obj == null || msg.obj.toString().length() == 0){  77                     return false;  78                 }else {  79                     //調用函數更新UI狀態條
 80  thistext(msg.obj.toString());  81  }  82  }  83 
 84             return false;  85  }  86  };  87 
 88     //建立一個Handler用於線程通信
 89     Handler mHandler = new Handler(mCallback);  90 
 91     //獲取CPU核心數
 92     public int thisGetCPUnum(){  93         return(Runtime.getRuntime().availableProcessors());  94  }  95 
 96     //列表框刷新數據
 97     public void thislist(String[] text){  98  ListView mListView;  99         mListView = (ListView) findViewById(R.id.listview); 100         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,text); 101  mListView.setAdapter(adapter); 102  } 103 
104     //增長數據到數組
105     public static String[] thisArrayAdd(String[] text,String data){ 106         //調用自定義函數增長數組成員
107         text = thisLengthArray(text); 108         //對新增長的數組成員賦值
109         text[text.length] = data; 110         //輸出這個新數組
111         return text; 112  } 113 
114     //狀態條顯示文本
115     public void thistext(String text){ 116         TextView textView = (TextView) findViewById(R.id.tv); 117  textView.setText(text); 118  } 119 
120     //數組增長成員數
121     public static String[] thisLengthArray(String[] text){ 122         String[] newArray = new String[text.length+1]; 123         System.arraycopy(text,0,newArray,0,text.length); 124         return newArray; 125  } 126 
127     class thisiflink extends Thread{ 128         //新建一個固定線程的線程池，線程數量爲CPU核心數量的2倍
129         ExecutorService pool = Executors.newFixedThreadPool(thisGetCPUnum()*2); 130  @Override 131         public void run(){ 132             //取任務開始時的時間
133             final long start = System.currentTimeMillis(); 134             //防止數據重複執行前清空已保存的數據
135             portstext = null; 136             //循環執行，一個端口占用一個線程
137             for(int i = portmin ; i <= portmax ; i++) { 138                 final int port = i; 139                 Runnable runnable = new Runnable() { 140  @Override 141                     public void run() { 142                         boolean x = true; 143                         try { 144                             //port被5整除，則刷新UI狀態條，顯示當前掃描的端口
145                             if (port%5 == 0){ 146                                 Message msg1 = Message.obtain(); 147                                 msg1.what = 1011; 148                                 msg1.arg1 = 1; 149                                 msg1.obj = "正在掃描 " + port + " 端口，請稍候..."; 150  mHandler.sendMessage(msg1); 151  } 152 
153                             //socket嘗試與指定IP的端口進行鏈接，超時300毫秒
154  Socket mSocket; 155                             mSocket = new Socket(); 156                             SocketAddress socketAddress = new InetSocketAddress(ip, port); 157                             mSocket.connect(socketAddress, 300); 158  mSocket.close(); 159 
160                             //若是成功鏈接則輸出鏈接成功
161                             System.out.println("端口 " + port + " 鏈接成功！"); 162 
163                             //防止下面代碼有異常拋出將x賦值爲false
164                             x = false; 165 
166                             //將數據保存到porttext中
167                             if (portstext == null || portstext.length() == 0){ 168                                 portstext = "端口 " + port + " 鏈接成功！"; 169                             }else { 170                                 portstext = portstext + "#端口 " + port + " 鏈接成功！"; 171  } 172 
173                             //通知刷新UI列表
174                             Message msg = Message.obtain(); 175                             msg.what = 1; 176                             msg.arg1 = 1; 177                             msg.obj = "更新UI列表"; 178  mHandler.sendMessage(msg); 179                         } catch (Exception e) { 180                             if (x) { 181                                 //若是鏈接失敗則輸出鏈接超時
182                                 System.out.println("端口 " + port + " 鏈接超時..."); 183  } 184  } 185  } 186  }; 187                 pool.execute(runnable);//線程池循環
188  } 189             pool.shutdown();//線程池關閉 190             //等待線程結束
191             while (true){ 192                 if (pool.isTerminated()){ 193                     //線程結束輸出保存的數據
194  System.out.println(portstext); 195                     break; 196  } 197  } 198             //取任務結束時的時間
199             final long end = System.currentTimeMillis(); 200             //計算時間差值輸出到狀態條
201             Message msg1 = Message.obtain(); 202             msg1.what = 1011; 203             msg1.arg1 = 1; 204             msg1.obj = "線程執行完成！共耗時 " + (end-start) +" 毫秒"; 205  mHandler.sendMessage(msg1); 206 
207             //若是porttext有數據則通知UI更新
208             if (portstext == null || portstext.length() == 0) { 209                 return; 210             }else { 211                 Message msg = Message.obtain(); 212                 msg.what = 1; 213                 msg.arg1 = 1; 214                 msg.obj = "更新UI列表"; 215  mHandler.sendMessage(msg); 216 
217                 return; 218  } 219  } 220  } 221 
222     //驗證是否有空編輯框
223     public boolean iftext(){ 224         if (ip == null || ip.length() == 0 || portmax == 0 || portmin == 0){ 225             return false; 226         }else { 227             return true; 228  } 229  } 230 }

4.調試輸出截圖（模擬器2核4線程）函數

　　實際測試時 1-65535 端口用16線程跑了21分鐘佈局