oracle调用java

关键字: oracle 调用 java

前提是数据库上需要安装java虚拟机(JVM),使用下面的语句查看

select*fromdba_registrywherecomp_id='JAVAVM'

select * from dba_registry where comp_id = 'JAVAVM'

为空,则未安装,请执行 $ORACLE_HOME/javavm/install/initjvm.sql安装.
创建函数

createorreplacefunctionfn_oraclecall(mAreainVARCHAR2,mDevIDinNumber,mPORTinNumber)
returnvarchar2
as
languagejavaname'Caller.call(java.lang.String,Integer,Integer)returnjava.lang.String';

create or replace function fn_oraclecall(mArea in VARCHAR2,mDevID in Number,mPORT in Number)
return varchar2
as
language java name 'Caller.call(java.lang.String,Integer,Integer) return java.lang.String';

创建存储过程

createorreplaceprocedureCHK_SETCAB_NUM
(mAreainVARCHAR2,mDevIDinNumber,mPORTinNumber,v_outoutvarchar2)is
begin
v_out:=fn_oraclecall(mArea,mDevID,mPORT);
endCHK_SETCAB_NUM;

create or replace procedure CHK_SETCAB_NUM
(mArea in VARCHAR2,mDevID in Number,mPORT in Number,v_out out varchar2) is
begin
v_out := fn_oraclecall(mArea,mDevID,mPORT);
end CHK_SETCAB_NUM;

loadjava

loadjava-usys/sys@sid-oci8-verbose-grantuser-synonym-resolve-schemauserD:/Caller.jar
--这里也可以是class文件,注意兼容oracle的jre版本

loadjava -u sys/sys@sid  -oci8 -verbose -grant user -synonym -resolve -schema user D:/Caller.jar
--这里也可以是class文件,注意兼容oracle的jre版本

注意编写的java文件里,即Caller.java的call()方法,需要是staic