Java程序中调用Oracle存储过程

一：无返回值的存储过程

存储过程为：

CREATE OR REPLACE PROCEDURE TESTA(PARA1 IN VARCHAR2,PARA2 IN VARCHAR2) AS

BEGIN

INSERT INTO HYQ.B_ID (I_ID,I_NAME) VALUES (PARA1, PARA2);

END TESTA;

然后呢，在java里调用时就用下面的代码：

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package com.hyq.src;



import java.sql.*;

import java.sql.ResultSet;



public class TestProcedureOne {

public TestProcedureOne() {

}

public static void main(String[] args ){

String driver = "oracle.jdbc.driver.OracleDriver ";

String strUrl = "jdbc:oracle:thin:@127.0.0.1:1521: hyq ";

Statement stmt = null;

ResultSet rs = null;

Connection conn = null;

CallableStatement cstmt = null;



try {

Class.forName(driver);

conn = DriverManager.getConnection(strUrl, " hyq ", " hyq ");

CallableStatement proc = null;

proc = conn.prepareCall( "{ call HYQ.TESTA(?,?) } ");

proc.setString(1, "100 ");

proc.setString(2, "TestOne ");

proc.execute();

}

catch (SQLException ex2) {

ex2.printStackTrace();

}

catch (Exception ex2) {

ex2.printStackTrace();

}

finally{

try {

if(rs != null){

rs.close();

if(stmt!=null){

stmt.close();

}

if(conn!=null){

conn.close();

}

}

}

catch (SQLException ex1) {

}

}

}

}

当然了，这就先要求要建张表TESTTB,里面两个字段（I_ID，I_NAME）。

二：有返回值的存储过程（非列表）

存储过程为：

CREATE OR REPLACE PROCEDURE TESTB(PARA1 IN VARCHAR2,PARA2 OUT VARCHAR2) AS

BEGIN

SELECT INTO PARA2 FROM TESTTB WHERE I_ID= PARA1;

END TESTB;


在java里调用时就用下面的代码：

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package com.hyq.src;



public class TestProcedureTWO {

public TestProcedureTWO() {

}

public static void main(String[] args ){

String driver = "oracle.jdbc.driver.OracleDriver ";

String strUrl = "jdbc:oracle:thin:@127.0.0.1:1521:hyq ";

Statement stmt = null;

ResultSet rs = null;

Connection conn = null;

try {

Class.forName(driver);

conn = DriverManager.getConnection(strUrl, " hyq ", " hyq ");

CallableStatement proc = null;

proc = conn.prepareCall( "{ call HYQ.TESTB(?,?) } ");

proc.setString(1, "100 ");

proc.registerOutParameter(2, Types.VARCHAR);

proc.execute();

String testPrint = proc.getString(2);

System.out.println( "=testPrint=is= "+testPrint);

}

catch (SQLException ex2) {

ex2.printStackTrace();

}

catch (Exception ex2) {

ex2.printStackTrace();

}

finally{

try {

if(rs != null){

rs.close();

if(stmt!=null){

stmt.close();

}

if(conn!=null){

conn.close();

}

}

}

catch (SQLException ex1) {

}

}

}

}



}


注意，这里的proc.getString(2)中的数值2并非任意的，而是和存储过程中的out列对应的，如果out是在第一个位置，那就是proc.getString(1)，如果是第三个位置，就是proc.getString(3)，当然也可以同时有多个返回值，那就是再多加几个out参数了。

三：返回列表

由于oracle存储过程没有返回值，它的所有返回值都是通过out参数来替代的，列表同样也不例外，但由于是集合，所以不能用一般的参数，必须要用pagkage了.所以要分两部分，

1， 建一个程序包。如下：

CREATE OR REPLACE PACKAGE TESTPACKAGE AS

TYPE Test_CURSOR IS REF CURSOR;

end TESTPACKAGE;

2，建立存储过程，存储过程为：

CREATE OR REPLACE PROCEDURE TESTC(p_CURSOR out TESTPACKAGE.Test_CURSOR) IS

BEGIN

OPEN p_CURSOR FOR SELECT * FROM HYQ.TESTTB;

END TESTC;

可以看到，它是把游标（可以理解为一个指针），作为一个out 参数来返回值的。

在java里调用时就用下面的代码：

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package com.hyq.src;

import java.sql.*;

import java.io.OutputStream;

import java.io.Writer;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import oracle.jdbc.driver.*;





public class TestProcedureTHREE {

public TestProcedureTHREE() {

}

public static void main(String[] args ){

String driver = "oracle.jdbc.driver.OracleDriver ";

String strUrl = "jdbc:oracle:thin:@127.0.0.1:1521:hyq ";

Statement stmt = null;

ResultSet rs = null;

Connection conn = null;



try {

Class.forName(driver);

conn = DriverManager.getConnection(strUrl, "hyq ", "hyq ");



CallableStatement proc = null;

proc = conn.prepareCall( "{ call hyq.testc(?) } ");

proc.registerOutParameter(1,oracle.jdbc.OracleTypes.CURSOR);

proc.execute();

rs = (ResultSet)proc.getObject(1);



while(rs.next())

{

System.out.println( " <tr> <td> " + rs.getString(1) + " </td> <td> "+rs.getString(2)+ " </td> </tr> ");

}

}

catch (SQLException ex2) {

ex2.printStackTrace();

}

catch (Exception ex2) {

ex2.printStackTrace();

}

finally{

try {

if(rs != null){

rs.close();

if(stmt!=null){

stmt.close();

}

if(conn!=null){

conn.close();

}

}

}

catch (SQLException ex1) {

}

}

}

}


在这里要注意，在执行前一定要先把oracle的驱动包放到class路径里，否则会报错的。
2-----------------------------------------
hibernate3 调用oracle存储过程的方法
原创 hibernate3 调用oracle存储过程的方法 收藏

配置文件：

<hibernate-mapping>
<class name="vo.SshPost" table="ssh_post" >
<!-- <cache usage="read-write"/>-->
<id name="postId" type="java.lang.String">
<column name="post_id" />
<generator class="native" />
</id>

<property name="postName" type="java.lang.String">
<column name="post_name" length="20" />
</property>
<property name="postNo" type="java.lang.String">
<column name="post_no" length="20" />
</property>
<filter name="myfilter" condition=":myfilterParam = post_name"/>

</class>

<sql-query callable="true" name="selectAllUsers">
<return class="vo.SshPost">
<return-property name="postId" column="POST_ID"/>
<return-property name="postName" column="POST_NAME"/>
<return-property name="postNo" column="POST_NO"/>
</return>
{ call P_TEST(?,:VPOSTNO) }
</sql-query>


</hibernate-mapping>

存储过程：

CREATE OR REPLACE PACKAGE TESTPACKAGE AS

TYPE Test_CURSOR IS REF CURSOR;

end TESTPACKAGE;

CREATE OR REPLACE PROCEDURE P_TEST(P_CURSOR OUT TESTPACKAGE.TEST_CURSOR,
VPOSTNO IN VARCHAR2) IS

BEGIN
OPEN P_CURSOR FOR
SELECT * FROM SSH_POST WHERE POST_NO = VPOSTNO;

END P_TEST;

如果不用PACKAGE 则可以使用

CREATE OR REPLACE PROCEDURE P_TEST(P_CURSOR OUT SYS_REFCURSOR,
VPOSTNO IN VARCHAR2) IS

程序调用：

Session session = sessionFactory.openSession();
Query query = session.getNamedQuery("selectAllUsers");
List list = query.setParameter("VPOSTNO", "99")

.list();
System.out.println(list.size());

但是有个很郁闷的问题就是：

当 { call P_TEST(?,:VPOSTNO) } 改为 { call P_TEST(?,?) } 时

程序使用query.setParameter(1, "99")

系统居然报错：

java.lang.ArrayStoreException
at java.lang.System.arraycopy(Native Method)
at java.util.Arrays.copyOf(Unknown Source)
at java.util.ArrayList.toArray(Unknown Source)
at org.hibernate.util.ArrayHelper.toTypeArray(ArrayHelper.java:75)
at org.hibernate.impl.AbstractQueryImpl.typeArray(AbstractQueryImpl.java:831)
at org.hibernate.impl.AbstractQueryImpl.getQueryParameters(AbstractQueryImpl.java:839)
at org.hibernate.impl.SQLQueryImpl.getQueryParameters(SQLQueryImpl.java:194)
at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:152)

奇怪的hibernate
3---------------
JDBC（或Hibernate）调用Oracle存储过程
1、存储过程

包头：

create or replace package uwf.TOOLS is

-- Author : lwq
-- Created : 2008-3-18 lwq 11:59:35
-- Purpose :
-- Public type declarations
function PROCESSDEFINITIONS_OF_USER(userID in long)return SYS_REFCURSOR;
end TOOLS;

包体：

create or replace package body uwf.TOOLS as
function PROCESSDEFINITIONS_OF_USER(userID in long)
return SYS_REFCURSOR
as
definitions_ SYS_REFCURSOR;
begin
OPEN definitions_ FOR
select ID_,NAME_
from uwf.jbpm_processdefinition;
return definitions_;
end PROCESSDEFINITIONS_OF_USER;
end TOOLS;

2、JDBC调用存储过程

try {
Connection conn =XXXXX.connection();
CallableStatement cstmt = conn.prepareCall("{?= call uwf.TOOLS.PROCESSDEFINITIONS_OF_USER(?)}");
cstmt.setLong(2, userID);
cstmt.registerOutParameter(1,oracle.jdbc.OracleTypes.CURSOR);
cstmt.execute();
ResultSet rs = (ResultSet)cstmt.getObject(1);
while(rs.next()){
System.out.println("id : " + rs.getLong("ID_"));
System.out.println("name : " + rs.getString("NAME_"));
}// end while
} catch (SQLException sqlException) {
sqlException.printStackTrace();
}

3、Hibernate调用存储过程

List retList=null;
Query query= XXXXXX.getSession().getNamedQuery("getProcessDefinitionsByUser");
query.setLong(0, userID);
retList = query.list();

Iterator it =retList.iterator();
while(it.hasNext())
{
Object[] pdObject = (Object[])it.next();
//流程定义主键
Long pdId=((BigDecimal)pdObject[0]).longValue();
//流程定义名字
String pdName=pdObject[1].toString();
。。。。。。。。
}

在hbm文件里要配置

<sql-query name="getProcessDefinitionsByUser" callable="true">
{?=call uwf.TOOLS.PROCESSDEFINITIONS_OF_USER(?)}
</sql-query>