Custom Load Balance

Explanation

• Before custom development, please customize and build the gateway environment first, please refer to: custom deployment.

• This article describes how to customize the extension of org.apache.shenyu.plugin.divide.balance.LoadBalance .

Extension

• Create a new class ${you class}, implements org.apache.shenyu.plugin.divide.balance.LoadBalance

public class ${you class} implements LoadBalance {       /**     * select one from upstream list.     *     * @param upstreamList upstream list     * @param ip ip     * @return divide upstream     */    @Override    public DivideUpstream doSelect(final List<DivideUpstream> upstreamList,                                    final String ip) {        //coding and return    }}

• In the project resources directory，Create a new META-INF/shenyu directory， and the new file name is : org.apache.shenyu.plugin.divide.balance.LoadBalance. add ${you spi name} = ${you class path}:

${you spi name} = ${you class path}

• In the Admin service ---> BasicConfig ---> Dictionary , Find the dictionary code as LOAD_BALANCE, add a new piece of data, pay attention to the dictionary name: ${you spi name}.

• Or execute the following custom SQL statement：

INSERT IGNORE INTO `shenyu_dict` (        `id`,        `type`,        `dict_code`,        `dict_name`,        `dict_value`,        `desc`,        `sort`,        `enabled`,        `date_created`,        `date_updated`    )VALUES (        'you id',        'matchMode',        'MATCH_MODE',        'you spi name',        'you value',        'you spi name',        0,        1,        '2021-08-30 19:29:10',        '2021-08-30 20:15:23'    );