我有一個功能PLSQL,運行功能PLSQL返回遊標有數據,但我調用java的問題返回結果集falase這個功能幫我處理問題,這Java調用程序的Oracle PLSQL不返回數據,但在PLSQL返回數據
enter code here
此功能PLSQL
FUNCTION get_canh_bao(
p_toolid in varchar2)
RETURN sys_refcursor IS
s varchar2(4000);
ptype varchar2(1000);
pday varchar2(1000);
psql varchar2(1000);
pcreate varchar2(1000);
re sys_refcursor;
pwhere varchar2(1000);
BEGIN
--
pwhere := '';
s := 'select b.TYPE_REPORT, b.DAY_NHAPLIEU, a.sql_cmd, a.name_createdate'
||' from cpcdata.tbl_config_nhaplieu a'
||' left join cpcdata.tbl_mainmenu b'
||' on a.tool_id = b.ID '
||' where b.show_all = 0 and b.flag = 1 and b.ID = :toolid';
execute immediate s INTO ptype, pday, psql, pcreate using p_toolid;
-- Tinh ngay canh bao
if (INSTR(psql,'where') > 0) then
pwhere := ' and ';
else
pwhere := ' where ';
end if;
s := psql ||pwhere||pcreate||' between :aDate AND :bDate';
CASE
WHEN ptype = 'day' THEN
s := psql ||pwhere|| ' to_char('||pcreate||',''dd/mm/yyyy'') = to_char(sysdate - '||pday||',''dd/mm/yyyy'')';
open re for s;
WHEN ptype = 'week' THEN
open re for s USING TRUNC (sysdate, 'iw'), TRUNC(sysdate, 'iw') + 7 - 1/86400- pday;
WHEN ptype = 'month' THEN
open re for s USING TRUNC (sysdate, 'mm'), to_date(LAST_DAY(TRUNC (sysdate, 'mm')) + 1 - 1/86400 - pday,'dd/mm/yyyy');
WHEN ptype = 'quy' THEN
open re for s USING TRUNC (sysdate, 'Q'), to_date(add_months(trunc(sysdate,'Q'),3)- 1 - pday, 'dd/mm/yyyy');
WHEN ptype = 'year' THEN
open re for s USING TRUNC (sysdate , 'YEAR'), to_date(ADD_MONTHS(TRUNC (SYSDATE,'YEAR'),12) - 1 - pday, 'dd/mm/yyyy');
ELSE return null;
END CASE;
dbms_output.put_line(''||s);
RETURN re ;
exception when others then
declare
s_err varchar2(2000);
str varchar(2000);
c_err sys_refcursor;
begin
s_err := 'loi khi lay du lieu '|| sqlerrm;
str := 'select '||s_err||' from dual';
open c_err for str;
return c_err;
end;
END;
這是代碼的Java
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn =
DriverManager.getConnection("jdbc:oracle:thin:@***:**:**",
"***", "***");
System.out.println("Connect db success ! ");
ArrayList arr = new ArrayList();
String sql = "{? = call get_canh_bao(?)}";
CallableStatement cs = conn.prepareCall(sql);
cs.registerOutParameter(1, OracleTypes.CURSOR);
cs.setString(2, "502");
cs.executeQuery();
ResultSet rs = (ResultSet)cs.getObject(1);
System.out.println("------------ResultSet---------------"+rs.next());
while (rs.next()) {
System.out.println("a");
String[] str =
{"1" };
arr.add(str);
}
System.out.println("size="+arr.size());
在java中運行代碼時的結果
Connect db success !
------------ResultSet---------------false
size=0
你有沒有注意到你在System.out.println中前進到第一條記錄,並在while循環中取下一條記錄 - 如果有的話。 –