获取Linux/Unix文件系统信息

﹏ヽ暗。殇╰゛Y 2022-08-02 01:17 201阅读 0赞

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#  [设计一套SAP监控系统][SAP] #

http://blog.csdn.net/bayaci/archive/2009/10/13/4666456.aspx  
  
显示系统df（linux ）/ bdf (hpunix)的信息  
![o_125.jpg][]  
  
执行代码，获取诸如 **bdf /usr**命令后的信息：  
DiskInfo diskInfo = new DiskInfo();  
diskInfo.info(directory);  
long used = diskInfo.getUsed();  
long free = diskInfo.getAvailable();  
long kbyte = diskInfo.getKbyte();  
  
  
  
  
  
  
代码如下：  
import java.io.IOException;  
import java.io.InputStream;  
import java.sql.Connection;  
import java.sql.PreparedStatement;  
import java.sql.SQLException;  
import java.util.StringTokenizer;  
   
   
public class DiskInfo \{  
  
   /\*\* OS line separator. \*/  
     static final String NL = System.getProperty( "line.separator" );  
  
   private static long getLong( String value ) throws NumberFormatException \{  
       try \{  
           return Long.parseLong( value );  
       \}  
       catch( NumberFormatException nfe ) \{  
           throw new NumberFormatException( "On value "+value+": "+nfe.getMessage() );  
       \}  
   \}  
  
  
   private String fileSystem ;  
   private String mounted ;  
private  long used = 0L;  
private long kbyte = 0L;  
private long available = 0L;  
  
   public   void info(String directory  ) throws IOException \{  
  
      InputStream stream = null;  
     // Connection connection = null; // Database Connection Object  
  
   
  
   
         // to handle standard outputs  
         final byte\[\] buf = new byte\[1024\];  
         String\[\] strings;  
         int i;  
         int size;  
  
   
         // note OS name  
         final String osName = System.getProperty( "os.name" );  
  
        // System.out.println( "system is  " + osName);  
          
          
         if( "Linux".equals( osName ) ) \{  
            final Process p = Runtime.getRuntime().exec( "df " + directory );  
            stream = p.getInputStream();  
            final int count = stream.read( buf, 0, buf.length );  
  
            String delim = NL;  
  
            final StringTokenizer st = new StringTokenizer( new String( buf, 0, count ), delim,  
true );  
  
            int lineNum = 1;  
            int field = 0;  
  
            while( st.hasMoreTokens() ) \{  
                final String token = st.nextToken(delim);  
                //System.out.println( "token is  " + token);  
                if( lineNum < 2 ) \{  
                    if( NL.equals( token ) ) \{  
                        lineNum++;  
                        if( lineNum == 2 ) \{  
                            delim = " " + NL;  
                        \}  
                    \}  
                \}// else  
                if( !" ".equals( token ) ) \{  
                    field++;  
                    if( field == 0 ) \{  
                        setFileSystem (   token  );  
                    \} else  
                    if( field == 2 ) \{  
                        setUsed ( getLong( token ));  
                    \} else  
                    if( field == 3 ) \{  
                        setAvailable( getLong( token ));  
                    \}  
                \}  
            \}  
         \}  
         else  
         if( "HP-UX".equals( osName ) ) \{  
            final Process p = Runtime.getRuntime().exec( "bdf " + directory );  
            stream = p.getInputStream();  
            final int count = stream.read( buf, 0, buf.length );  
  
            String delim = NL;  
  
            final StringTokenizer st = new StringTokenizer( new String( buf, 0, count ), delim,  
true );  
  
            int lineNum = 1;  
            int field = 0;  
  
            while( st.hasMoreTokens() ) \{  
                final String token = st.nextToken(delim);  
                if( lineNum < 2 ) \{  
                    if( NL.equals( token ) ) \{  
                        lineNum++;  
                        if( lineNum == 2 ) \{  
                            delim = " " + NL;  
                        \}  
                    \}  
                \} else  
                if( !" ".equals( token ) ) \{  
                    field++;  
                      
                     
                     
                    if( field == 0 ) \{  
                        setFileSystem (   token  );  
                    \} else  
                    if( field == 3 ) \{  
                        setUsed ( getLong( token ));  
                    \} else  
                    if( field == 4 ) \{  
                        setAvailable( getLong( token ));  
                    \}  
                \}  
            \}  
         \} else \{  
            throw new RuntimeException( "Unknown OS name: " + osName + " to implement..." );  
         \}  
   
         setKbyte ( getUsed() + getAvailable());  
         setMounted(directory );  
   
   
   \}  
  
   private void setUsed(long used) \{  
    this.used = used;  
\}  
  
public long getUsed() \{  
    return used;  
\}  
  
private void setKbyte(long kbyte) \{  
    this.kbyte = kbyte;  
\}  
  
public long getKbyte() \{  
    return kbyte;  
\}  
  
private void setAvailable(long available) \{  
    this.available = available;  
\}  
  
public long getAvailable() \{  
    return available;  
\}  
  
private void setFileSystem(String fileSystem) \{  
    this.fileSystem = fileSystem;  
\}  
  
public String getFileSystem() \{  
    return fileSystem;  
\}  
  
private void setMounted(String mounted) \{  
    this.mounted = mounted;  
\}  
  
public String getMounted() \{  
    return mounted;  
\}  
  
   
   
    
    
\}

![pixy.gif_x-id_b36ad588-1709-8ef2-9d35-550797c66f16][]

[SAP]: http://blog.csdn.net/bayaci/archive/2009/10/13/4666456.aspx
[o_125.jpg]: /images/20220731/a4a59e933f3c44cfb16126aa6b18d899.png
[pixy.gif_x-id_b36ad588-1709-8ef2-9d35-550797c66f16]: http://img.zemanta.com/pixy.gif?x-id=b36ad588-1709-8ef2-9d35-550797c66f16