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java_exec_expect用于执行chang_passwd.sh文件

*********************************************************************create or replace and compile java source named java_create_expect asimport java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
public class Javacreateexpect {public static void main(String[] args) {FileOutputStream out = null;
FileOutputStream outSTr = null;
BufferedOutputStream Buff = null;
FileWriter fw = null;  try {  /*   建立/home/oracle/change_passwd.sh脚本文件  */byte[] str1 = "#!/usr/bin/expect\n".getBytes();  byte[] str2 = "spawn  /usr/bin/su -s /usr/bin/ksh root\n".getBytes();  byte[] str3 = "expect \"Password:\";\n".getBytes();byte[] str4 = "send \"cdr12345\\n\";\n".getBytes();byte[] str5 = "expect \"#\";\n".getBytes();// byte[] str6 = "send \"/usr/bin/cp -f /etc/passwd /home/oracle/\\n";\n".getBytes();byte[] str6 = "send \"/usr/bin/cp -f /etc/passwd /home/oracle/\\n\"\n".getBytes();byte[] str7 = "send \"/usr/bin/perl -p -i -e s,:/usr/bin/bash,:/usr/bin/ksh, /home/oracle/passwd\\n\"\n".getBytes();byte[] str8 = "send \"/usr/bin/cat /home/oracle/passwd\\n\"\n".getBytes();byte[] str9 = "send \"/usr/bin/mv /etc/passwd /etc/passwd.bak_20121123\\n\"\n".getBytes();byte[] str10 = "send \"/usr/bin/cp /home/oracle/passwd /etc/passwd\\n\"\n".getBytes();byte[] str11= "send \"exit\\n\";\n".getBytes();byte[] str12 = "expect eof".getBytes();out = new FileOutputStream(new File("/home/oracle/change_passwd.sh"));  long begin = System.currentTimeMillis();  out.write(str1);  out.write(str2);out.write(str3);out.write(str4);out.write(str5);out.write(str6);out.write(str7);out.write(str8);out.write(str9);out.write(str10);out.write(str11);out.write(str12);out.close();//System.out.println("hello,world");/*   修改change_passwd.sh文件属性，添加可执行权限  */String cmd = "chmod +x /home/oracle/change_passwd.sh";Process p = Runtime.getRuntime().exec(cmd);/* System.out.println("hello,earth");*//*显示change_oracle.sh文件内容 *//*String cmd_disp_expect = "cat /home/oracle/ep.sh";p = Runtime.getRuntime().exec(cmd_disp_expect);is = p.getInputStream();br = new java.io.BufferedReader(new java.io.InputStreamReader(is));sb = new StringBuffer();do {sb.setLength(0);String str = br.readLine();if (str == null)break;if (str.trim().equals(""))continue;sb.append(str);System.out.println(sb.toString());} while (true);*/} catch (Exception e) {e.printStackTrace();}}}

*********************************************************************create or replace and compile java source named java_exec_expect asimport java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.lang.Thread;
import java.lang.Object;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;public class Javaexecexpect {public static void main(String[] args) {
FileOutputStream out = null;
FileOutputStream outSTr = null;
BufferedOutputStream Buff = null;
FileWriter fw = null;  try {String cmd_exec_expect = "/usr/bin/expect -f /home/oracle/change_passwd.sh";Process p = Runtime.getRuntime().exec(cmd_exec_expect);// 获得返回值java.io.InputStream stdin = p.getInputStream();java.io.InputStreamReader isr = new java.io.InputStreamReader(stdin);java.io.BufferedReader br = new java.io.BufferedReader(isr);StringBuffer sb = new StringBuffer();do {sb.setLength(0);String str = br.readLine();if (str == null)break;if (str.trim().equals(""))  continue;sb.append(str);System.out.println(sb.toString());  // System.err.println(loadStream(p.getErrorStream()));} while (true);/*Thread.sleep(1000);*/int exitVal = p.waitFor();System.out.println("Process exitValue: " + exitVal);} catch (Exception e) {System.err.println("System Monitor Error" + e.toString());e.printStackTrace();}}
}