strong如何配置mysql时区？

我是strongloop的新手。My datasources.json配置如下：

"platformDB": {
"host": "localhost",
"port": 3306,
"database": "way",
"username": "root",
"password": "root",
"name": "platformDB",
"connector": "mysql"
},

"name": "UserAccount",
"plural": "user",
"base": "PersistedModel",
"idInjection": true,
"properties": {
"id": {
  "type": "number",
  "required": false
},
"accountName": {
  "type": "string",
  "required": false
},
"roleName": {
  "type": "string",
  "required": false
},
"accessToken": {
  "type": "string",
  "required": false
},
"loginTime": {
  "type": "date",
  "required": false,
  "mysql": {
    "dataType": "datetime"
  }
}

var options = {
host: s.host || s.hostname || 'localhost',
port: s.port || 3306,
user: s.username || s.user,
password: s.password,
timezone: s.timezone,
socketPath: s.socketPath,
charset: s.collation.toUpperCase(), // Correct by docs despite seeming odd.
supportBigNumbers: s.supportBigNumbers,
connectionLimit: s.connectionLimit
};

UserAccount是我的一个模型，如下所示：

"platformDB": {
"host": "localhost",
"port": 3306,
"database": "way",
"username": "root",
"password": "root",
"name": "platformDB",
"connector": "mysql"
},

"name": "UserAccount",
"plural": "user",
"base": "PersistedModel",
"idInjection": true,
"properties": {
"id": {
  "type": "number",
  "required": false
},
"accountName": {
  "type": "string",
  "required": false
},
"roleName": {
  "type": "string",
  "required": false
},
"accessToken": {
  "type": "string",
  "required": false
},
"loginTime": {
  "type": "date",
  "required": false,
  "mysql": {
    "dataType": "datetime"
  }
}

var options = {
host: s.host || s.hostname || 'localhost',
port: s.port || 3306,
user: s.username || s.user,
password: s.password,
timezone: s.timezone,
socketPath: s.socketPath,
charset: s.collation.toUpperCase(), // Correct by docs despite seeming odd.
supportBigNumbers: s.supportBigNumbers,
connectionLimit: s.connectionLimit
};

当我调用UserAccount.create和UserAccount.findById函数时，它们的结果是正常的。但当我通过客户端工具连接mysql数据库时，我发现“loginTime”的值是utc时间。这个结果与其他系统组件不协调，总之，我需要本地时间。 所以我跟踪环回连接器mysql源代码，在datasource中找到timezone属性，如下所示：

"platformDB": {
"host": "localhost",
"port": 3306,
"database": "way",
"username": "root",
"password": "root",
"name": "platformDB",
"connector": "mysql"
},

"name": "UserAccount",
"plural": "user",
"base": "PersistedModel",
"idInjection": true,
"properties": {
"id": {
  "type": "number",
  "required": false
},
"accountName": {
  "type": "string",
  "required": false
},
"roleName": {
  "type": "string",
  "required": false
},
"accessToken": {
  "type": "string",
  "required": false
},
"loginTime": {
  "type": "date",
  "required": false,
  "mysql": {
    "dataType": "datetime"
  }
}

var options = {
host: s.host || s.hostname || 'localhost',
port: s.port || 3306,
user: s.username || s.user,
password: s.password,
timezone: s.timezone,
socketPath: s.socketPath,
charset: s.collation.toUpperCase(), // Correct by docs despite seeming odd.
supportBigNumbers: s.supportBigNumbers,
connectionLimit: s.connectionLimit
};

---

因此，我在datasources.json中配置“timezone”：“utc8”，UserAccount.findById函数结果是客户端工具的eqauls，但UserAccount.create函数结果仍然是utc时间。这就是为什么？

唯一的解决方案是修改核心文件。 编辑/var/www/yourproject/node_modules/loopbackconnector mysql/lib/mysql.js

改变

function dateToMysql(val) {
  return val.getUTCFullYear() + '-' +
    fillZeros(val.getUTCMonth() + 1) + '-' +
    fillZeros(val.getUTCDate()) + ' ' +
    fillZeros(val.getUTCHours()) + ':' +
    fillZeros(val.getUTCMinutes()) + ':' +
    fillZeros(val.getUTCSeconds());

  function fillZeros(v) {
    return v < 10 ? '0' + v : v;
  }
}

函数dateToMysql（val）{ 返回值getUTCFullYear（）+'-'+ 填充零（val.getUTCMonth（）+1）+'-'+ 填充零（val.getUTCDate（））+“”+ fillZeros（val.getUTCHours（））+'：'+ fillZeros（val.getUTCMinutes（））+'：'+ fillZeros（val.getUTCSeconds（））； 函数fillzero（v）{ 返回v<10？'0'+v:v； } } 到

***函数dateToMysql（val）{
返回值getFullYear（）+'-'+
填充零（val.getMonth（）+1）+'-'+
填充零（val.getDate（））+“”+
填充零（val.getHours（））+'：'+
填充零（val.getMinutes（））+'：'+
fillzero（val.getSeconds（））；
函数fillzero（v）{
返回v<10？'0'+v:v；
}
}***

这会节省你的时间

---

别忘了投票；-）

您还可以通过向datasource JSON配置添加时区条目来设置运行API的服务器的时区：

datasources.json：

{
  "mysqlDS": {
    "name": "mysqlDS",
    "connector": "mysql",
    "host": "localhost",
    "port": 3306,
    "database": "dbname",
    "username": "root",
    "password": "",
    "timezone": "UTC"
  }
}

然后可以使用环境变量在datasources.local.js中的生产环境上覆盖：

datasources.local.js：

module.exports = {
  "mysqlDS": {
    host    : process.env.APP_MYSQL_HOST,
    port    : process.env.APP_MYSQL_PORT,
    database: process.env.APP_MYSQL_DB,
    username: process.env.APP_MYSQL_USER,
    password: process.env.APP_MYSQL_PW,
    timezone: process.env.APP_MYSQL_TZ
  }
}

也可能只是不签入datasources.json并使其成为所有环境的部署/构建配置的一部分