1、创建java程序:接收存储过程传递的参数,发送socket通信。
create or replace and compile java source named jym as import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.StringWriter; import java.net.InetSocketAddress; import java.net.Socket; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.Statement; public class JYM { public static String sendSynMsg(String ipAddr, byte[] datas) throws Exception{ InetSocketAddress endpoint = new InetSocketAddress(ipAddr ,18002); Socket socket = null; OutputStream out = null; InputStream in = null; try { socket = new Socket(); socket.connect(endpoint); out = socket.getOutputStream(); in = socket.getInputStream(); out.write(datas); out.flush(); return null; } finally { if (out != null) { try { out.close(); } catch(Exception ex) { ex.printStackTrace(); } } if (in != null) { try { in.close(); } catch(Exception ex) { ex.printStackTrace(); } } if (socket != null) { try { socket.close(); } catch(Exception ex) { ex.printStackTrace(); } } } } public static void say(String ip,byte[] context) throws Exception { String str=JYM.sendSynMsg(ip,context); Class.forName("oracle.jdbc.driver.OracleDriver"); Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@192.168.9.109:1521:orcl","zhym","jhhz621"); PreparedStatement pr=conn.prepareStatement("insert into backdata(context) values(?)"); pr.setBytes(1, context); pr.executeUpdate(); pr.close(); conn.close(); } }
2、存储过程调用java source
create or replace procedure socket( ip varchar2, context raw ) as language java name 'JYM.say(java.lang.String,byte[])';
3、触发器调用存储过程
create or replace trigger todata_after after insert on todata for each row begin socket('192.168.9.12',:new.context); end todata_after;
代码写好后可以先用存储过程测试:
call socket('192.168.9.12','023132');
为了能在控制台中看见错误信息,要先运行下面3句话
set serveroutput on; set serveroutput on size 5000; call dbms_java.set_output(5000);
假如你运行存储过程时爆出了 请给用户复制权限的提示则按照提示在sysdba 下赋权限,如:
exec dbms_java.grant_permission('zhym','SYS:java.net.SocketPermission','192.168.9.12:18002','connect,resolve') exec dbms_java.grant_permission('ZHYM','SYS:java.net.SocketPermission','127.0.0.1:1521','connect,resolve')
exec 后面的语句会在你的报错提示中打印出来,只要前面加exec就可以了。