How Windows uses the java process to obtain operating system disk and memory information

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Memory: first create a table, and then call the operating system command to obtain memory capacity and other information

Create table os_meminfo (info VARCHAR2 (4000))

/

Create or replace and compile java source named syscmd as

Import java.io.*

Import java.lang.*

Import oracle.sql.*

Import java.io.BufferedInputStream

Import java.io.BufferedReader

Import java.io.InputStreamReader

Public class syscmd extends Object {

Public static void runcmd (int bufSize, String command, String result []) {

/ / String result

String returnResult

Int I = 0

Try {

Process p

P = Runtime.getRuntime () .exec (command)

/ / BufferedInputStream bis=new BufferedInputStream (p.getInputStream (), bufSize)

/ / byte buffer [] = new byte [bufSize]

BufferedInputStream in = new BufferedInputStream (p.getInputStream ())

BufferedReader inBr = new BufferedReader (new InputStreamReader (in))

String lineStr

While ((lineStr = inBr.readLine ())! = null) {

/ / System.out.println (lineStr)

If (lineStr.indexOf (memory) > 0) {

System.out.println (lineStr)

# sql {insert into os_meminfo (info) values (: lineStr)}

}

}

/ / while (bis.read (buffer,0,bufSize)! =-1)

/ / System.out.write (buffer,0,len)

P.waitFor ()

/ / for (int I = 0; I