powershell mysql转json(Utf8NoBom)

#配置
$mysqldllpatch='C:\Users\Administrator\Documents\v2.0\MySql.Data.dll'
$ConnectionString1="host=localhost;uid=root;pwd=passwd;database=dbname"
$jsonfile="C:\webservice\apache-tomcat-7.0.59\webapps\app\WEB-INF\classes\payprice.json"
#初始化数据库连接
[void][system.reflection.Assembly]::LoadFrom($mysqldllpatch)
$connection1 = New-Object MySql.Data.MySqlClient.MySqlConnection
$connection1.ConnectionString = $ConnectionString1
$command1 = New-Object MySql.Data.MySqlClient.MySqlCommand($sql1,$connection1)
$command1.CommandTimeout=600
$da1=New-Object MySql.Data.MySqlClient.MySqlDataAdapter($command1)
#数据库查询
$command1.CommandText="SELECT game_id,amount,game_coin,coin_bonus FROM `gamebox_game_payment_type_price` where payment_type_id=12;
SELECT game_id,amount,game_coin,coin_bonus FROM `gamebox_game_payment_type_price` where payment_type_id=13;
SELECT game_id,token_amount,game_coin,coin_bonus FROM `gamebox_game_token_price`;"
$dt1=New-Object System.Data.Dataset
$null=$da1.fill($dt1)
#对象组装
$pay=@{
"Card"=$dt1.Tables[0].rows|ConvertTo-Csv|ConvertFrom-Csv
"HopePay"=$dt1.Tables[1].rows|ConvertTo-Csv|ConvertFrom-Csv
"Token"=$dt1.Tables[2].rows|ConvertTo-Csv|ConvertFrom-Csv
}
#转换成JSON
$json=$pay|ConvertTo-Json -Compress

$Utf8NoBomEncoding = New-Object System.Text.UTF8Encoding($False) #Utf8NoBom编码
[System.IO.File]::WriteAllLines($jsonfile, $json, $Utf8NoBomEncoding) #输出