更改续集时区

Question

我想在nodejs中制作安静的应用程序

服务器：centos 7 64x 数据库：postgresql 附加：express、sequelize 表：带时区的日期时间

当我从数据库中选择带有续集的行时，created_at 列给了我错误的时间。日期时间增加 5 小时。

我将centos的时区配置更改为+5（塔什干/亚洲）还将postgresql时区配置更改为+5 显示时数据库中的日期时间是正确的。

但是当我选择它时它会转换成这样

“创建于”：“2018-08-12T17：57：20.508Z”

在数据库列中显示了这一点

2018-08-12 22:57:20.508+05

配置.json

"development": {
    "username": "postgres",
    "password": "postgres",
    "database": "zablet",
    "host": "127.0.0.1",
    "dialect": "postgres",
    "timezone": "Tashkent/Ashgabat",
    "define": {
        "charset": "utf8",
        "dialectOptions": {
            "collate": "utf8_general_ci"
        },
        "freezeTableName": true
    }
}

索引.js

'use strict';
var fs = require('fs');
var path = require('path');

var Sequelize = require('sequelize');
var basename = path.basename(__filename);
var env = process.env.NODE_ENV || 'development';
var config = require('../config/config.json')[env];
var db = {};
if (config.use_env_variable) {
    var sequelize = new Sequelize(process.env[config.use_env_variable], config);
} else {
    var sequelize = new Sequelize(config.database, config.username, config.password, config);
}
fs
    .readdirSync(__dirname)
    .filter(file => {
        return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');
    })
    .forEach(file => {
        var model = sequelize['import'](path.join(__dirname, file));
        db[model.name] = model;
    });
Object.keys(db).forEach(modelName => {
    if (db[modelName].associate) {
        db[modelName].associate(db);
    }
});
db.sequelize = sequelize;
db.Sequelize = Sequelize;
module.exports = db;

更新了 config.json

{
    "development": {
    "username": "postgres",
    "password": "postgres",
    "database": "postgres",
    "host": "127.0.0.1",
    "dialect": "postgres",
    "define": {
        "charset": "utf8",
        "dialectOptions": {
            "collate": "utf8_general_ci"
        },
        "freezeTableName": true
    },
    "dialectOptions": {
        "useUTC": false
    },
    "timezone": "+05:00"
}
}

如何以正确的时区格式从数据库中选择行？

Answer 1

这是因为您设置时区仅用于写入数据库，而不是用于读取。这工作正常。我正在用这个。

development: {
    username: 'postgres',
    password: 'postgres',
    database: 'YOUR_DATABASE_NAME',
    host: '127.0.0.1',
    port: 5432,
    dialect: 'postgres',
    dialectOptions: {
      useUTC: false, // for reading from database
    },
    timezone: '+05:30', // for writing to database
  },

如果仍然不起作用，请将以下属性添加到connection.js 中的sequelize 构造函数中。

dialectOptions:{useUTC:false},timezone:"+05:30"

类似于下面的代码：

const sequelize = new Sequelize("DB",'USER','PWD',{host:'127.0.0.1',dialect:"mysql",operatorsAliases:0,timezone:"+05:30"})