MySQL连接字符串中的几个重要步骤

上一篇文章我们对MySQL连接字符串的实际操作经验与实际操作技巧有一个详细的介绍，此篇文章主要是对MySQL连接字符串的实际操作步骤（在实际操作中具有重要地位）的介绍，望你会有所收获。 MySQL连接字符串：MySQL Connector/Net (.NET)连接方式 1、标准连接(

上一篇文章我们对MySQL连接字符串的实际操作经验与实际操作技巧有一个详细的介绍，此篇文章主要是对MySQL连接字符串的实际操作步骤（在实际操作中具有重要地位）的介绍，望你会有所收获。

MySQL连接字符串：MySQL Connector/Net (.NET)连接方式

1、标准连接(说明，默认端口是3306。)

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>; </span></span></li></ol>

2、特殊的TCP/IP端口连接

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Port</span><span>=</span><span class="attribute-value">1234</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>; </span></span></li></ol>

3、命名管道

说明：端口值为-1，说明用命名管道方式连接。此方式只在Windows下有效，在UNIX下用会被忽略。

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Port</span><span>=-1;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>; </span></span></li></ol>

4、多服务器连接

用此种方式连接到数据库中，不必担心该使用哪个数据库。

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">serverAddress1</span><span> & serverAddress2 & etc..;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>;</span></span></li></ol>

5、加密选项

这条活动的SSL连接加密所有客户端和服务器商的数据传输。而且服务器要有一个证书。

这个选项从Connector/NET5.0.3版开始出现，以前的版本中则没有此功能。

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Port</span><span>=-1;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>; </span></span></li></ol>

6、修改默认的命令超时时间

使用这条修改连接的默认命令超时时间。注意：此条不会影响你在单独命令对象上设置的超时时间。

此条只对Connector/NET 5.1.4 及以上的版本有效.

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>;default command </span><span class="attribute">timeout</span><span>=</span><span class="attribute-value">20</span><span>; </span></span></li></ol>

7、修改连接偿试时间

使用这条修改在终止重试和接收错误的等待时间(以秒为单位)

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>;Connection </span><span class="attribute">Timeout</span><span>=</span><span class="attribute-value">5</span><span>; </span></span></li></ol>

8、Inactivating prepared statements

Use this one to instruct the provider to ignore any command prepare statements and prevent corruption issues with server side prepared statements.

此选项被加入到Connector/NET的5.0.3版和1.0.9版。

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>;Ignore </span><span class="attribute">Prepare</span><span>=</span><span class="attribute-value">true</span><span>;</span></span></li></ol>

9、特殊的TCP/IP端口连接

这条语句修改连接的端口。

默认端口是3306。此参数会被Unix忽略。

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>;</span><span class="attribute">Port</span><span>=</span><span class="attribute-value">3306</span><span>; </span></span></li></ol>

10、特殊网络协议

这条语句修改用哪种协议进行连接。

如果没有特别说明，"socket"是默认的值。"tcp"是与"socket"相同意义的。"pipe"是使用命名管道连接，"unix"是使用 unix socket连接，"memory"是使用MySQL的共享内存。

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>;</span><span class="attribute">Protocol</span><span>=</span><span class="attribute-value">socket</span><span>;</span></span></li></ol>

11、特殊字符集的连接

这个语句指出以使种字符串编码发送到服务器上的查询语句。

注意：查询结果仍然是以反回数据的格式传送。

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>;</span><span class="attribute">CharSet</span><span>=</span><span class="attribute-value">UTF8</span><span>; </span></span></li></ol>

12、修改共享内存名

此语句用来修改用来通信的共享内存名称。

说明：此语句只有当连接协议设置为"memory"时才有效。

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Server</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;</span><span class="attribute">Uid</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Pwd</span><span>=</span><span class="attribute-value">myPassword</span><span>;Shared Memory </span><span class="attribute">Name</span><span>=</span><span class="attribute-value">MySQL</span><span>; </span></span></li></ol>

MySQL连接字符串：MySQLConnection (.NET)连接方式

1、eInfoDesigns.dbProvider

<ol class="dp-xml"><li class="alt"><span><span>Data </span><span class="attribute">Source</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>;<br>User </span><span class="attribute">ID</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Password</span><span>=</span><span class="attribute-value">myPassword</span><span>;Command </span><span class="attribute">Logging</span><span>=</span><span class="attribute-value">false</span><span>; </span></span></li></ol>

SevenObjects MySQLClient (.NET)连接方式

1、标准连接

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Host</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;</span><span class="attribute">UserName</span><span>=</span><span class="attribute-value">myUsername</span><span>;</span><span class="attribute">Password</span><span>=</span><span class="attribute-value">myPassword</span><span>;</span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>; </span></span></li></ol>

Core Labs MySQLDirect (.NET)连接方式

1、标准连接

<ol class="dp-xml"><li class="alt"><span><span>User </span><span class="attribute">ID</span><span>=</span><span class="attribute-value">root</span><span>;</span><span class="attribute">Password</span><span>=</span><span class="attribute-value">myPassword</span><span>;</span><span class="attribute">Host</span><span>=</span><span class="attribute-value">localhost</span><span>;</span><span class="attribute">Port</span><span>=</span><span class="attribute-value">3306</span><span>;<br></span><span class="attribute">Database</span><span>=</span><span class="attribute-value">myDataBase</span><span>; </span><span class="attribute">Direct</span><span>=</span><span class="attribute-value">true</span><span>;</span><span class="attribute">Protocol</span><span>=</span><span class="attribute-value">TCP</span><span>;</span><span class="attribute">Compress</span><span>=</span><span class="attribute-value">false</span><span>;<br></span><span class="attribute">Pooling</span><span>=</span><span class="attribute-value">true</span><span>;Min Pool </span><span class="attribute">Size</span><span>=</span><span class="attribute-value">0</span><span>;Max Pool </span><span class="attribute">Size</span><span>=</span><span class="attribute-value">100</span><span>;Connection </span><span class="attribute">Lifetime</span><span>=</span><span class="attribute-value">0</span><span>; </span></span></li></ol>

MySQL连接字符串：MySQLDriverCS (.NET)连接方式

1、标准连接

<ol class="dp-xml"><li class="alt"><span><span class="attribute">Location</span><span>=</span><span class="attribute-value">myServerAddress</span><span>;Data </span><span class="attribute">Source</span><span>=</span><span class="attribute-value">myDataBase</span><span>;User </span><span class="attribute">ID</span><span>=</span><span class="attribute-value">myUsername</span><span>;<br></span><span class="attribute">Password</span><span>=</span><span class="attribute-value">myPassword</span><span>;</span><span class="attribute">Port</span><span>=</span><span class="attribute-value">3306</span><span>;Extended </span><span class="attribute">Properties</span><span>=</span><span class="attribute-value">""</span><span>""; </span></span></li></ol>

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