[英]How to parse the data from “rows” object in node.js,express.js,mysql2
I m using the node,express,mysql2 packages .When im using console.log(rows) ,it is giving me following output:我正在使用 node,express,mysql2 包。当我使用 console.log(rows) 时,它给了我以下输出:
[{"userid": "test","password": "test"}]
And here is my Code :这是我的代码:
var application_root = __dirname,
express = require("express"),
mysql = require('mysql2');
path = require("path");
var app = express();
var connection = mysql.createConnection({
host : 'localhost',
user : 'root',
password : '123',
database: "bbsbec"
});
app.configure(function () {
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(path.join(application_root, "public")));
app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
});
connection.query('SELECT * from pass', function(err, rows) {
res.json(rows);
console.log(rows);
});
I just want to know that how can i parse this "rows" object so that i can retrive both userid and password .我只想知道如何解析这个“行”对象,以便我可以检索 userid 和 password 。
[{"userid": "test","password": "test"}]
This is an Array
of Object
s.这是一个
Object
Array
。 So: First loop over the array to get a single object and then extract its properties:所以:首先遍历数组以获取单个对象,然后提取其属性:
for (var i = 0; i < rows.length; i++) {
var row = rows[i];
console.log(row.userid);
}
Try this (this is really basic):试试这个(这是非常基本的):
connection.query('SELECT * from pass', function(err, rows) {
res.json(rows);
var user = rows[0].userid;
var password= rows[0].password;
});
connection.query('SELECT * from pass', function(err, rows) { data = rows[0]; let user = data.userid; let password= data.password; res.json(rows); });
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