MySql数据库升级到8以上时,对于开发人员来说非常好用的数据批量导入的工具loaddata使用会出现一些小问题。
这里简单总结一下,如果可以帮大家省时间最好不过了
简单粗暴,围绕出啥错,为什么,怎么解决三点开始正文
错误:ERROR 1148: The used command is not allowed with this MySQL version
为啥:load data local可被利用为高危漏洞,所以8以上mysql默认关闭改功能
咋办:修改全局变量启用load data
set global local_infile = 1;
修改config启用load data local
[client]
loose-local-infile = 1
错误:MySqlBulkLoader 报 promissions deny
为啥:5.6之前,这代码没问题,5.6之后的版本,默认local = false
咋办:代码加一段就可以了
var bulk = new MySqlBulkLoader(conn)
{
CharacterSet = "utf8mb4",
Local = true, #加这个,参考官方文档,文末有链接
FieldTerminator = ",",
FieldQuotationCharacter = '"',
EscapeCharacter = '"',
LineTerminator = "\r\n",
FileName = csvFileItemPath,
NumberOfLinesToSkip = 1,
TableName = cacheTableName
}
错误:MySqlBulkLoader 报 The used command is not allowed with this MySQL version;设置了local_infile = 1也没啥用
为啥:猜测mysqlconnection,默认关闭这个功能的。至于为啥全局变量启用load data还是无效,我没有深究,有知道的小伙伴能告诉我最好了 [手动狗头]
咋办:修改链接字符串,加上allowLoadLocalInfile
Data Source=***.***.***.*;Initial Catalog=******;user id=*****;pwd=*******;allowLoadLocalInfile=true;
错误:万一手贱,以为是包的问题,把mysql.data.ef6包给升级了,发现咋跑都报错
为啥:mysql.data.ef6迁了,最新版到包mysql.data.entityframework。如果还是有问题(具体啥错我就不贴了),把下面的这个config招呼上
<entityFramework codeConfigurationType="MySql.Data.EntityFramework.MySqlEFConfiguration, MySql.Data.EntityFramework">
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.EntityFramework, Version=8.0.18.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</providers>
</entityFramework>
参考:
Mysql8以上版本默认禁用load data命令官宣
https://dev.mysql.com/doc/refman/8.0/en/load-data-local.html
LoadData命令相关
https://dev.mysql.com/doc/refman/5.7/en/load-data.html
命令报错:ERROR 1148: The used command is not allowed with this MySQL version
MySqlBulkLoader官方实例
https://dev.mysql.com/doc/connector-net/en/connector-net-programming-bulk-loader.html