1、进入$OraHome/hs/admin/目录，打开extproc.ora文件，
[oracle@localhost admin]$ cat -n extproc.ora
1 #
2 # extproc.ora is used by extproc in the default Oracle configuration.
3 #
4 # This is a sample extproc init file that contains a name-value(s) pair which
5 # is same as the value of ENVS parameter in listener.ora file.
6 #
7 # Syntax: SET name=value (environment variable name and value)
8 #
9 # When specifying the EXTPROC_DLLS environment variable to restrict the DLLs
10 # that extproc is allowed to load, you may set EXTPROC_DLLS to one of the
11 # following values:
12 #
13 # * ONLY (maximum security)
14 #
15 # When EXTPROC_DLLS=ONLY:DLL[:DLL], only the specified DLL(s) can be loaded.
16 #
17 # Syntax: SET EXTPROC_DLLS=ONLY:DLL[:DLL]
18 #
19 # * NULL (the default value)
20 #
21 # When EXTPROC_DLLS=, only the DLL(s) in $ORACLE_HOME/bin and ORACLE_HOME/lib
22 # can be loaded.
23 #
24 # Syntax: SET EXTPROC_DLLS=
25 #
26 # * Colon-seperated list of the DLLs
27 #
28 # When EXTPROC_DLLS=DLL[:DLL], the specified DLL(s) and the DLLs in
29 # $ORACLE_HOME/bin and ORACLE_HOME/lib can be loaded.
30 #
31 # Syntax: SET EXTPROC_DLLS=DLL:DLL
32 #
33 # * ANY
34 # When EXTPROC_DLLS=ANY, DLL checking is disabled.
35 #
36 # Syntax: SET EXTPROC_DLLS=ANY
37 #
38 SET EXTPROC_DLLS=
这里，只需要修改一个地方
SET EXTPROC_DLLS=ANY即可
2、将相关的dll和So文件拷贝到$ORACLE_HOME/bin或者$ORACLE_HOME/lib里面
3、重启监听即可。（注意，这种方式只针对Oracle11g以上的版本）