jdbcTemplate update返回主健方法

@Override
    public Integer UpdateOrgManage(String orgName, String bindNo, String fromUserName, String wxName) {
        KeyHolder key=new GeneratedKeyHolder();

        jdbcTemplate.update(new PreparedStatementCreator() {
            @Override
            public PreparedStatement createPreparedStatement(Connection con) throws SQLException {
                String sql="update sm_org set wx_open_id=?,wx_name=? where bind_no=? and name=?";
                PreparedStatement preState=con.prepareStatement(sql,Statement.RETURN_GENERATED_KEYS);
                preState.setString(1,fromUserName);
                preState.setString(2,wxName);
                preState.setString(3,bindNo);
                preState.setString(4,orgName);
                return preState;
            }
        }, key);
        //从主键持有者中获得主键值
        return key.getKeys().get("id");
    }