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MySQL 外壳 8.0

5.7.5 JSON 包装

为了帮助将 MySQL Shell 与外部工具集成，--json当您从命令行启动 MySQL Shell 时，您可以使用该选项来控制所有 MySQL Shell 输出的 JSON 包装。该 --json选项仅对指定的 MySQL Shell 会话有效。

指定--json、 --json=pretty或 --json=raw打开会话的 JSON 包装。无论是否指定值， --json=pretty都会生成打印精美的 JSON。使用 --json=raw，生成原始 JSON。

resultFormat当打开 JSON 包装时，在配置文件或命令行（带有--result-format 选项或其别名之一） 上 为 MySQL Shell 配置选项指定的任何值都将被忽略。

指定--json=off关闭会话的 JSON 包装。当关闭 JSON 包装或未为会话请求时，结果集将以 resultFormatMySQL Shell 配置选项指定的格式正常输出。

示例 5.7 带有漂亮打印的 JSON 包装（--json或 --json=pretty）的 MySQL Shell 输出

$> echo "select * from world_x.city where countrycode='AUT'" | mysqlsh --json --sql --uri user@localhost:33060
or
$> echo "select * from world_x.city where countrycode='AUT'" | mysqlsh --json=pretty --sql --uri user@localhost:33060
{
    "hasData": true,
    "rows": [
        {
            "ID": 1523,
            "Name": "Wien",
            "CountryCode": "AUT",
            "District": "Wien",
            "Info": {
                "Population": 1608144
            }
        },
        {
            "ID": 1524,
            "Name": "Graz",
            "CountryCode": "AUT",
            "District": "Steiermark",
            "Info": {
                "Population": 240967
            }
        },
        {
            "ID": 1525,
            "Name": "Linz",
            "CountryCode": "AUT",
            "District": "North Austria",
            "Info": {
                "Population": 188022
            }
        },
        {
            "ID": 1526,
            "Name": "Salzburg",
            "CountryCode": "AUT",
            "District": "Salzburg",
            "Info": {
                "Population": 144247
            }
        },
        {
            "ID": 1527,
            "Name": "Innsbruck",
            "CountryCode": "AUT",
            "District": "Tiroli",
            "Info": {
                "Population": 111752
            }
        },
        {
            "ID": 1528,
            "Name": "Klagenfurt",
            "CountryCode": "AUT",
            "District": "Kärnten",
            "Info": {
                "Population": 91141
            }
        }
    ],
    "executionTime": "0.0067 sec",
    "affectedRowCount": 0,
    "affectedItemsCount": 0,
    "warningCount": 0,
    "warningsCount": 0,
    "warnings": [],
    "info": "",
    "autoIncrementValue": 0
}

--json=raw示例 5.8 使用原始 JSON 包装 ( )的 MySQL Shell 输出

$> echo "select * from world_x.city where countrycode='AUT'" | mysqlsh --json=raw --sql --uri user@localhost:33060
{"hasData":true,"rows":[{"ID":1523,"Name":"Wien","CountryCode":"AUT","District":"Wien","Info":{"Population":1608144}},{"ID":1524,"Name":"Graz","CountryCode":"AUT","District":"Steiermark","Info":{"Population":240967}},{"ID":1525,"Name":"Linz","CountryCode":"AUT","District":"North Austria","Info":{"Population":188022}},{"ID":1526,"Name":"Salzburg","CountryCode":"AUT","District":"Salzburg","Info":{"Population":144247}},{"ID":1527,"Name":"Innsbruck","CountryCode":"AUT","District":"Tiroli","Info":{"Population":111752}},{"ID":1528,"Name":"Klagenfurt","CountryCode":"AUT","District":"Kärnten","Info":{"Population":91141}}],"executionTime":"0.0117 sec","affectedRowCount":0,"affectedItemsCount":0,"warningCount":0,"warningsCount":0,"warnings":[],"info":"","autoIncrementValue":0}