一、需求
传入一个参数，返回一条或多条记录(列表)。
二、实现步骤
1. 编写Oracle存储过程。
-- 声明包和包体的语句应该分两次执行，即使声明在前定义在后，如果一起执行依然会编译出错
--调用能够返回多条记录的存储过程需要定义在包内
--声明包及包内的游标、存储过程
CREATE OR REPLACE PACKAGE pack_myPackage ISTYPE myCursorIS REF CURSOR;PROCEDURE proc_querySomeInfo(pNo IN VARCHAR2, myCursor OUT myCursor);ENDpack_myPackage;--定义包体
CREATE OR REPLACE PACKAGE BODY pack_myPackage IS
PROCEDURE proc_querySomeInfo(pNo IN VARCHAR2, outcursor OUT myCursor) IS
BEGIN
OPEN outcursor FORSELECT * FROM tableA WHERE P_NO =pNo;ENDproc_querySomeInfo;END pack_myPackage;
2. 编写Java代码
packagevip.yaocn.test;importjava.sql.CallableStatement;importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.ResultSet;/*** 存储过程测试
*
*@authoryacon*/
public classProcedureTest {public static void main(String[] args) throwsException {
String url= "jdbc:oracle:thin:@127.0.0.1:1521:orcl";
String driverName= "oracle.jdbc.driver.OracleDriver";
String username= "scott";
String password= "tiger";
Connection conn= null;
CallableStatement cstmt= null;
ResultSet rs= null;try{
Class.forName(driverName);
conn=DriverManager.getConnection(url, username, password);
String callSql= "{call pack_myPackage.proc_getSomeInfo(?, ?) }";
cstmt=conn.prepareCall(callSql);
cstmt.setString(1, "1001");
cstmt.registerOutParameter(2, oracle.jdbc.OracleTypes.CURSOR);
cstmt.execute();
rs= (ResultSet) cstmt.getObject(2);if (rs != null) {while(rs.next()) {
System.out.println(rs.getString(1));
}
}
}catch(Exception e) {
e.printStackTrace();
}finally{try{if (rs != null) {
rs.close();
}
}catch(Exception e) {
e.printStackTrace();
}try{if (cstmt != null) {
cstmt.close();
}
}catch(Exception e) {
e.printStackTrace();
}try{if (conn != null) {
conn.close();
}
}catch(Exception e) {
e.printStackTrace();
}
}
}
}
三、 其他需求
1. Java调用有返回值的Oracle存储过程(返回一个简单类型的值)
(1)定义存储过程：
CREATE OR REPLACE PROCEDURE proc_A(param1 IN VARCHAR2, param2 OUT VARCHAR2)AS
BEGIN
SELECT name INTO param2 FROM T_A WHERE id =param1;END;
(2)编写Java代码：
packagevip.yaocn.test;importjava.sql.CallableStatement;importjava.sql.Connection;importjava.sql.DriverManager;import java.sql.ResultSet;
/*** 存储过程测试
*
*@authoryacon*/
public classProcedureTest {public static void main(String[] args) throwsException {
String url= "jdbc:oracle:thin:@127.0.0.1:1521:orcl";
String driverName= "oracle.jdbc.driver.OracleDriver";
String username= "scott";
String password= "tiger";
Connection conn= null;
CallableStatement cstmt= null;
ResultSet rs= null;try{
Class.forName(driverName);
conn=DriverManager.getConnection(url, username, password);
String callSql= "{call proc_A(?, ?) }";
cstmt=conn.prepareCall(callSql);
cstmt.setString(1, "1001");
cstmt.registerOutParameter(2, oracle.jdbc.OracleTypes.VARCHAR);
cstmt.execute();
System.out.println("Output is:" + cstmt.getString(2));}catch(Exception e) {
e.printStackTrace();
}finally{try{if (rs != null) {
rs.close();
}
}catch(Exception e) {
e.printStackTrace();
}try{if (cstmt != null) {
cstmt.close();
}
}catch(Exception e) {
e.printStackTrace();
}try{if (conn != null) {
conn.close();
}
}catch(Exception e) {
e.printStackTrace();
}
}
}
}
2. Java调用无返回值的Oracle存储过程(无返回值)
(1)定义存储过程：
CREATE OR REPLACE PROCEDURE proc_B(param1 IN VARCHAR2, param2 IN VARCHAR2)AS
BEGIN
INSERT INTO T_B VALUES(param1, param2);END;
(2)编写Java代码：
packagevip.yaocn.test;importjava.sql.CallableStatement;importjava.sql.Connection;importjava.sql.DriverManager;import java.sql.ResultSet;
/*** 存储过程测试
*
*@authoryacon*/
public classProcedureTest {public static void main(String[] args) throwsException {
String url= "jdbc:oracle:thin:@127.0.0.1:1521:orcl";
String driverName= "oracle.jdbc.driver.OracleDriver";
String username= "scott";
String password= "tiger";
Connection conn= null;
CallableStatement cstmt= null;
ResultSet rs= null;try{
Class.forName(driverName);
conn=DriverManager.getConnection(url, username, password);
String callSql= "{call proc_B(?, ?) }";
cstmt=conn.prepareCall(callSql);
cstmt.setString(1, "1001");
cstmt.setString(2, "TEST");
cstmt.execute();
}catch(Exception e) {
e.printStackTrace();
}finally{try{if (rs != null) {
rs.close();
}
}catch(Exception e) {
e.printStackTrace();
}try{if (cstmt != null) {
cstmt.close();
}
}catch(Exception e) {
e.printStackTrace();
}try{if (conn != null) {
conn.close();
}
}catch(Exception e) {
e.printStackTrace();
}
}
}
}
四、相关知识
1. 在plsql developer中测试存储过程时可以在存储过程名上右击选择 “测试” ，如果需要提供参数可以在下方填入参数，如果没有参数则点击执行按钮即可。
 详解)
