如何在GUI上獲取主板序列號（在java中）

Question

我確實喜歡在文本字段（GUI面板）中顯示主板序列號。我創建了一個文本字段和操作按鈕。我在操作按鈕中編寫了這段代碼。我在這段代碼中犯了什麼錯誤？

try { 
     Process p = Runtime.getRuntime().exec("wmic baseboard get serialnumber"); 
     BufferedReader inn = new BufferedReader(new InputStreamReader(p.getInputStream())); 

     while (true) { 

      String line = inn.readLine(); 
      if (line == null) { 
       break; 
      } 
      motherboard.setText(line); 
     } 
    } catch (Exception e) { 
     JOptionPane.showMessageDialog(this, "Sorry could not found motherboard serial!"); 
    } 

Answer 1

try 
    { 
     String result = null; 
     Process p = Runtime.getRuntime().exec("wmic baseboard get serialnumber"); 
     BufferedReader input 
       = new BufferedReader(new InputStreamReader(p.getInputStream())); 
     String line; 
     while ((line = input.readLine()) != null) 
     { 
      result += line; 
     } 
     if (result.equalsIgnoreCase(" ")) { 
      System.out.println("Result is empty"); 
     } else 
     { 
      motherboard.setText(result); 
     } 
     input.close(); 
    } catch (IOException ex) 
    { 
     Exceptions.printStackTrace(ex); 
    } 

Answer 2

，您應該使用的Runtime.exec的其他形式：

 String[] command = {"wmic", "baseboard", "get", "serial number"}; 
     Process p = Runtime.getRuntime().exec(command); 

Answer 3

的問題是，你讀multi-line輸出

while (true) { 
    String line = inn.readLine(); 
    if (line == null) { 
      break; 
     } 
... 

，但你總是存儲只就行了當前在文本字段中讀取。意味着前面的輸出被覆蓋。

... 
     motherboard.setText(line); 
} 

由於輸出的最後一行是empty line文本字段顯示這個空行（意味着你沒有看到任何輸出）。

編輯以下內容僅爲完整而添加。

可用作String serialNumber = getSerialNumber()的小方法。它過濾出標題行和空行。

static String getSerialNumber() throws IOException, InterruptedException { 
    ProcessBuilder pb = new ProcessBuilder("wmic", "baseboard", 
      "get", "serialnumber"); 
    Process process = pb.start(); 
    process.waitFor(); 
    String serialNumber = ""; 
    try (BufferedReader br = new BufferedReader(new InputStreamReader(
      process.getInputStream()))) { 
     for (String line = br.readLine(); line != null; line = br.readLine()) { 
      if (line.length() < 1 || line.startsWith("SerialNumber")) { 
       continue; 
      } 
      serialNumber = line; 
      break; 
     } 
    } 
    return serialNumber; 
} 

另一種方式可能是做過濾已經在wmic命令和只讀從輸出的第一行。

要麼使用自定義XSL控制的wmic輸出由Windows

wmic baseboard get serialnumber | findstr /r /v "^$" | findstr /v "SerialNumber" 

或提供commandlline工具。

保存爲simple.xsl

<?xml version="1.0"?> 
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"> 
<xsl:output method="text"/> 
<xsl:template match="/"><xsl:apply-templates select="COMMAND/RESULTS"/> 
</xsl:template> 
</xsl:stylesheet> 

，並運行命令

wmic baseboard get serialnumber /Format:.\simple 

Answer 4

private void serial(){ 
    // wmic command for diskdrive id: wmic DISKDRIVE GET SerialNumber 
    // wmic command for cpu id : wmic cpu get ProcessorId 
    Process process = null; 
    try { 
     process = Runtime.getRuntime().exec(new String[] { "wmic", "bios", "get", "SerialNumber" }); 
     //process = Runtime.getRuntime().exec(new String[] { "wmic", "DISKDRIVE", "get", "SerialNumber" }); 
     // process = Runtime.getRuntime().exec(new String[] { "wmic", "cpu", "get", "ProcessorId" }); 
     //process = Runtime.getRuntime().exec(new String[] { "wmic", "baseboard", "get", "SerialNumber" }); 
     process.getOutputStream().close(); 
    } catch (IOException ex) { 
     Logger.getLogger(Activate.class.getName()).log(Level.SEVERE, null, ex); 
    } 
    Scanner sc = new Scanner(process.getInputStream()); 
    String property = sc.next(); 
    String serial = sc.next(); 
    System.out.println(property + ": " + serial); 
    this.serial.setText(property + ": " + serial); 
}