jdbc调用存储过程和函数

1.调用存储过程

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();
}
}

2.调用函数

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();
}
}