从存储过程检索Java对象

Question

 create or replace procedure "USER_OUT" (USERID in varchar2,UserObj out User)
 is 
 begin
 select * from user_table where 
 USERID = UserObj.USERID;

 end USER_OUT;

CallableStatement callableStatement = dh.con.prepareCall("{call USER_OUT(?)}");
User usr = new User();
callableStatement .setInt (1,"123");
usr1 = (User)callableStatement.getResultSet();
callableStatement.registerOutParameter(1, OracleTypes.CURSOR);
callableStatement.executeUpdate();//getting exception as Object is invalid.

Answer 1

你可能不需要那句台词：

callableStatement.registerOutParameter(1, OracleTypes.CURSOR);

我不是神谕的人，但我会想到这样的事情：

create or replace procedure "USER_OUT" (pUSERID in varchar2)
is 
begin
select USERID, USERNAME, DOB from user_table
where USERID = pUSERID;
end

而且

CallableStatement callableStatement = dh.con.prepareCall("{call USER_OUT(?)}");
callableStatement.setString("pUSERID","123");

ResultSet rs = callableStatement.executeQuery();
rs.next();
// Assuming you have a constructor that takes all parameter in
User usr = new User(rs.getInt("USERID"), rs.getString("USERNAME"), rs.getString("DOB"));