oracle学习-存储过程返回一个值，和返回一个结果集

一、返回一个值

--创建存储过程

create or replace procedure sp_hu_test(spcode in varchar2,spname out varchar2)is
begin
select cname into spname from gb_customerinfo where ccode = spcode;
end;

//java代码调用和接受返回值

public static void main(String[] arg) {
   try {     Class.forName("oracle.jdbc.driver.OracleDriver");     Connection cnn = DriverManager.getConnection(
      "jdbc:oracle:thin:@192.168.1.116:1521:cwerp",
      "hu_gbxt", "hu_gbxt");
    //创建CallableStatement
    CallableStatement cs = cnn.prepareCall("{call sp_hu_test(?,?)}");     cs.setString(1, "082");
    cs.registerOutParameter(2, oracle.jdbc.OracleTypes.VARCHAR);     cs.execute();
    String cname = cs.getString(2);
    System.out.println("名字：" + cname);     cs.close();
    cnn.close();
   } catch (Exception e) {
    e.printStackTrace();
   }

}
}

二、返回多个值

--创建一个包，包里有个游标变量

create or replace package mypackage as
type sp_cursor is ref cursor;
end mypackage;

--创建存储过程
create or replace procedure sp_proc(carcode in varchar2,sp_coesor out mypackage.sp_cursor)is
begin
open sp_coesor for select * from gb_truck where cardcode = carcode;
end;

//注解，这里面的输出参数是个游标类型

//java调用存储过程

public static void main(String[] arg) {
   try {     Class.forName("oracle.jdbc.driver.OracleDriver");     Connection cnn = DriverManager.getConnection(
      "jdbc:oracle:thin:@192.168.1.116:1521:cwerp",
      "hu_gbxt", "hu_gbxt");
    //创建CallableStatement
      CallableStatement cs = cnn.prepareCall("{call sp_proc(?,?)}");
    cs.setString(1, "皖1958707");
    cs.registerOutParameter(2, oracle.jdbc.OracleTypes.CURSOR);
    cs.execute();
    ResultSet rs = (ResultSet)cs.getObject(2);
    while(rs.next()){
     System.out.println(rs.getString(1) + " " + rs.getString(2) + " " + rs.getString(4));     //关闭
    cs.close();
    cnn.close();
   } catch (Exception e) {
    e.printStackTrace();
   }

}
}