jdbcTemplate call plsql function

总是忘记相关的语法，记录下以备查询.

private String genSql = "{call PACK_XXX_MGMT.INSERT_USER_TOKEN(?, ?)}"; // procedure
private String selSql = "{? = call PACK_XXX.GET_USER_ID_BY_TOKEN(?)}"; // function

public String someFunction(final String token) {
  String userId = null;
        try{

            userId = jdbcTemplate.execute(selSql, new CallableStatementCallback<String>() {
                public String doInCallableStatement(CallableStatement cs) throws SQLException, DataAccessException {
                    cs.registerOutParameter(1, java.sql.Types.VARCHAR);
                    cs.setString(2, token);
                    cs.execute();
                    return cs.getString(1);
                }
            });
        }catch(DataAccessException e){
            //
        }
        
        return userId;
    }

    public String someFunction() {


final String token = "hello";
        final String userName = "world"

        jdbcTemplate.execute(genSql, new CallableStatementCallback<Void>() {
            public Void doInCallableStatement(CallableStatement cs) throws SQLException, DataAccessException {
                cs.setString(1, userName);
                cs.setString(2, token);
                cs.execute();
                return null;
            }
        });

        return token;
    }