UTL_DBWS包的创建和用法

UTL_DBWS - Consuming Web Services in Oracle 10g

In a previous article I presented a method for Consuming Web Services using a basic SOAP implementation. This article provides similar functionality, but this time using the UTL_DBWS package, which is essentially a PL/SQL wrapper over JPublisher.
First, download the latest copy of the dbwsclient.jar file:

• Pre 10g: dbws-callout-utility.zip (10.1.2)
• 10g: dbws-callout-utility-10R2.zip (10.1.3.0)
• 10g & 11g latest: dbws-callout-utility-10131.zip (10.1.3.1)

Extract the jar file from the zip file into the $ORACLE_HOME/sqlj/lib directory.
The jar file can be loaded into the SYS schema for everyone to access, or into an individual schema that needs access to the web client.

# Load into the SYS schema.

export PATH=/u01/app/oracle/product/10.2.0/db_1/bin:$PATH

cd /u01/app/oracle/product/10.2.0/db_1/sqlj/lib

# 10gR2

loadjava -u sys/password -r -v -f -genmissing -s -grant public dbwsclientws.jar dbwsclientdb102.jar

# 11g

loadjava -u sys/password -r -v -f -genmissing -s -grant public dbwsclientws.jar dbwsclientdb11.jar



# Load into an individual schema.

export PATH=/u01/app/oracle/product/10.2.0/db_1/bin:$PATH

cd /u01/app/oracle/product/10.2.0/db_1/sqlj/lib

# 10gR2

loadjava -u scott/tiger -r -v -f -genmissing dbwsclientws.jar dbwsclientdb102.jar

# 11g

loadjava -u scott/tiger -r -v -f -genmissing dbwsclientws.jar dbwsclientdb11.jar

In Oracle 10g the UTL_DBWS package is loaded by default. In Oracle9i the package must be loaded using the specification and body provided in the zip file.
The function below uses the UTL_DBWS package to access a web services from PL/SQL. The URL of the WDSL file describing the web service is shown here (http://webservices.imacination.com/distance/Distance.jws?wsdl). The web service returns the city associated with the specified zipcode.

CREATE OR REPLACE FUNCTION get_city_from_zipcode (p_zipcode  IN  VARCHAR2)

  RETURN VARCHAR2

AS

  l_service  UTL_DBWS.service;

  l_call     UTL_DBWS.call;

  l_result   ANYDATA;

  

  l_wsdl_url         VARCHAR2(32767);

  l_namespace        VARCHAR2(32767);

  l_service_qname    UTL_DBWS.qname;

  l_port_qname       UTL_DBWS.qname;

  l_operation_qname  UTL_DBWS.qname;

  l_input_params     UTL_DBWS.anydata_list;

BEGIN

  l_wsdl_url        := 'http://webservices.imacination.com/distance/Distance.jws?wsdl';

  l_namespace       := 'http://webservices.imacination.com/distance/Distance.jws';



  l_service_qname   := UTL_DBWS.to_qname(l_namespace, 'DistanceService');

  l_port_qname      := UTL_DBWS.to_qname(l_namespace, 'Distance');

  l_operation_qname := UTL_DBWS.to_qname(l_namespace, 'getCity');



  l_service := UTL_DBWS.create_service (

    wsdl_document_location => URIFACTORY.getURI(l_wsdl_url),

    service_name           => l_service_qname);



  l_call := UTL_DBWS.create_call (

    service_handle => l_service,

    port_name      => l_port_qname,

    operation_name => l_operation_qname);



  l_input_params(0) := ANYDATA.ConvertVarchar2(p_zipcode);

  

  l_result := UTL_DBWS.invoke ( 

    call_handle  => l_call,

    input_params => l_input_params);



  UTL_DBWS.release_call (call_handle => l_call);

  UTL_DBWS.release_service (service_handle => l_service);



  RETURN ANYDATA.AccessVarchar2(l_result);

END;

/

The output below shows the function in action.

SQL> SELECT get_city_from_zipcode('94065') FROM dual;



GET_CITY_FROM_ZIPCODE('94065')

--------------------------------------------------------------------------------

Redwood City



SQL> SELECT get_city_from_zipcode('94066') FROM dual;



GET_CITY_FROM_ZIPCODE('94066')

--------------------------------------------------------------------------------

San Bruno



SQL>

需要说明的先要安装oracle jvm 用dbca向导来添加

添加完成后,再按上面方法创建UTL_DBWS包
摘录自：http://blog.itpub.net/7199859/viewspace-586802