java中调用存储过程

create proc uition_test
@sid int,@byname varchar(50)
as
declare @uition int
if exists(select * from signUtil)
begin
select @uition=max(uition)+1 from signUtil
insert into signUtil(sid,byname,uition) values(@sid,@byname,@uition);
end
else
insert into signUtil(sid,byname,uition) values(@sid,@byname,100);
GO

//这里是方法
public boolean insersginUtil(int sid, String contex) throws SQLException {
   CallableStatement proc = null;
   boolean bool = false;
   try {
    conn = this.tranc.getConn();
    proc = conn.prepareCall("{call uition_test(?, ?) }");
    proc.setInt(1, sid);
    proc.setString(2, contex);
    System.out.println(sid + "" + contex);
    bool = proc.execute();
   } finally {
    try {
     proc.close();
    } catch (SQLException e) {
    }
   }
   System.out.println(bool);
   return bool;
}