jdbc调用oracle存储过程和存储函数

--定义过程

create or replace procedure get_rax(salary in number,rax out number)
as
--需要交税的钱
bal number;
begin
bal := salary - 3500;
if bal<=1500 then
rax := bal * 0.03 - 0;
elsif bal<=4500 then
rax := bal * 0.1 - 105;
elsif bal<=9000 then
rax := bal * 0.2 - 555;
elsif bal<=35000 then
rax := bal * 0.25 - 1005;
elsif bal<=55000 then
rax := bal * 0.3 - 2755;
elsif bal<=80000 then
rax := bal * 0.35 - 5505;
else
rax := bal * 0.45 - 13505;
end if;
end;--定义函数

create or replace function findEmpNameAndJobAndSal(pempno in number,pjob out varchar2,psal out number)
return varchar2
as
pename emp.ename%type;
begin
select ename,job,sal into pename,pjob,psal from emp where empno = pempno;
return pename;
end;
/

JdbcUtil.java
/**
* JDBC工具类
* @author AdminTC
*/
public class JdbcUtil {
private static ComboPooledDataSource dataSource = new ComboPooledDataSource();
public static Connection getConnection() throws Exception{
return dataSource.getConnection();
}
}java-jdbc调用oracle过程
/**
* 演示java-jdbc调用oracle过程
* @author AdminTC
*/
public class CallOracleProc {
public static void main(String[] args) throws Exception{
String sql = "{call get_rax(?,?)}";
Connection conn = JdbcUtil.getConnection();
CallableStatement cstmt = conn.prepareCall(sql);
//为第一个?号设置值，从1开始
cstmt.setInt(1,7000);
//为第二个？注册输出类型
cstmt.registerOutParameter(2,Types.INTEGER);
//执行调用过程
cstmt.execute();
//接收过程的返回值，即第二个？号
int rax = cstmt.getInt(2);
//显示
System.out.println("7000元需要上交"+rax+"元税收");
cstmt.close();
conn.close();
}
}
java-jdbc调用oracle函数
/**
* 演示java-jdbc调用oracle函数
* @author AdminTC
*/
public class CallOracleFunc {
public static void main(String[] args) throws Exception{
String sql = "{ ? = call findEmpNameAndJobAndSal(?,?,?) }";
Connection conn = JdbcUtil.getConnection();
CallableStatement cstmt = conn.prepareCall(sql);

//为第一个?注册输出类型
cstmt.registerOutParameter(1,Types.VARCHAR);
//为第二个?注入值
cstmt.setInt(2,7788);
//为第三个?注册输出类型
cstmt.registerOutParameter(3,Types.VARCHAR);
//为第四个?注册输出类型
cstmt.registerOutParameter(4,Types.INTEGER);
//执行函数调用
cstmt.execute();
//分别获取1,3,4占位符的值
String ename = cstmt.getString(1);
String job = cstmt.getString(3);
int sal = cstmt.getInt(4);
//显示
System.out.println("7788--"+ename+"--"+job+"--"+sal);
cstmt.close();
conn.close();
}
}