java程序調用Oracle 存儲過程 獲取返回值(無返回,非結
果集,結果集)
oracle中procedure是不能有返回值的,要想返回值,就得有
輸出參數,同樣要想返回記錄集,可以把游標類型作為輸出參
數。
下面是詳細情況說明:
一:無返回值的存儲過程調用
存儲過程:
create ?or replace Procedure PRO_1(PARA1 in
VARCHAR2,PARA2 in VARCHAR2) ? as
begin
insert into ?EMP(ID,NAME) values (PARA1,
PARA2);
end PRO_1;
java程序調用:(和下面類同)
二:有返回值的存儲過程調用(非結果集)
存儲過程:
create ?or replace Procedure PRO_2(PARA1 in
VARCHAR2,PARA2 OUT VARCHAR2) ? as
bigin
select NAME into PARA2 from EMP where ID=
PARA1;
end PRO_2;
java程序調用:
DriverManager.registerDriver(new
oracle.jdbc.driver.OracleDriver());
Connection conn =
DriverManager.getConnection(
"jdbc:oracle:thin:@202.96.28.250:1521:
"username", "password");
CallableStatement st = conn.prepareCall("{
PRO_2(?,?)}");
st.setString(1,"1");
st.registerOutParameter(2,OracleTypes.VARCHAR
st.execute();
String name = st.getString(2);//2與上面存儲
的out參數位置對應,也可以同時有多個返回值,那就是
再多加幾個out參數了
System.out.println(r.getString("title"));
三:有返回值的存儲過程調用(返回結果集)
存儲過程:
create or replace procedure Test(p_cur in out
sys_refcursor)
as
begin
open p_cur for select * from BOOK;
end;
java程序調用:
try {
DriverManager.registerDriver(new
oracle.jdbc.driver.OracleDriver());
Connection conn =
DriverManager.getConnection(
"jdbc:oracle:thin:@202.96.28.250:1521:
"username", "password");
CallableStatement st = conn.prepareCall(
"{call Test(?)}");
st.registerOutParameter(1,OracleTypes.CURSOR)
st.execute();
ResultSet r = (ResultSet) st.getObject(1);
while (r.next()) {
System.out.println(r.getString("title"));
}
}
catch(Exception e) {
}