javascript - Node.js API 与 express 和 mysql - WHERE IN 和带有多个逗号分隔值的绑定(bind)参数

Question

我有一个像这样的网址...其中多个(可以将逗号分隔的值添加到网址中)

localhost:4001/api/v1/users/search?title=mr,dr  

这是我的查询:

router.get('/search?', function(req, res, next) {
    var title = req.query.title;

    var paramTitle = '\'' + title.split(',').join('\',\'') + '\''; 

    var setParams = [];
    if (title) {    
        setParams = [paramTitle];
    } 

    var sql = "SELECT * from users WHERE title IN (?)"; 

    connection.query(sql, setParams, function (error, results, fields) {
        res.json({"status": 200, "error": null, "response": results});
    });
});

但我收到错误:

sql "SELECT * from users WHERE title IN '(\\'mr\\',\\'dr\\')' LIMIT 100"

我怎样才能得到这个:

var sql = "SELECT * from users WHERE title IN ('mr','dr')";

Answer 1

绑定(bind)需要一个数组，因此您不需要自己手动连接。

var paramTitle = title.split(','); 

var setParams = [];
if (title) {    
    setParams = [paramTitle];
}