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SQLException：找不到适用于jdbc：mysql：// localhost：3306 / dbname的驱动程序

[英]SQLException: No suitable driver found for jdbc:mysql://localhost:3306/dbname

 原文  2013-05-15 09:21:44  5   2    java/ mysql/ linux/ jdbc/ sqlexception

问题描述

I've inherited a project (and I have absolutly no experience of Java) and I'm rather stuck. 我继承了一个项目（而且我绝对没有Java的经验），但我很困惑。

We have a server running redhat, which I needed to update one of the jar files. 我们有一台运行redhat的服务器，我需要更新其中的jar文件。 So I simply copied up the updated file and restarted the service for that file. 因此，我只是复制了更新的文件并重新启动了该文件的服务。 However this process has worked on our other server I did that too but on this one it comes up with the below in the log file. 但是，此过程在我们的另一台服务器上也起作用，但我也这样做了，但在此服务器上，它在日志文件中包含以下内容。 

Exception: com.mysql.jdbc.Driver
SQLException: No suitable driver found for jdbc:mysql://localhost:3306/dbanme

The jar files are uploaded to a folder in the root of the website and within that jar folder is a lib folder where mysql-connector-java-5.1.6-bin.jar is located. jar文件被上载到网站根目录中的一个文件夹中，并且该jar文件夹中有一个lib文件夹，该文件夹位于mysql-connector-java-5.1.6-bin.jar。

Does anyone know what I could be missing as I'm a newbie to linux aswell. 有谁知道我可能是Linux新手，所以我可能会错过什么。

Thanks in advance 提前致谢

2 个解决方案

解决方案1
 2  2013-05-15 09:36:25

java.sql.SQLException: No suitable driver found java.sql.SQLException：找不到合适的驱动程序

This exception can have 2 causes: 此异常可能有2个原因：

  1. The JDBC driver is not loaded at all. 完全不加载JDBC驱动程序。
  2. URL does not match any of the loaded JDBC drivers. URL与任何已加载的JDBC驱动程序都不匹配。

Since the driver seems to be loaded , it look like that the URL is not valid on that machine: 由于驱动程序似乎已加载，因此该URL在该计算机上无效：

jdbc:mysql://localhost:3306/dbname JDBC：MySQL的：//本地主机：3306 / DBNAME

Do you have mysql running and listening on port 3306 on that machine. 您是否在该计算机上的端口3306上运行并监听mysql。 Also make sure you hte schema dbname there. 还要确保在那里有模式dbname。

解决方案2
 0  2014-01-15 06:32:36

You need only set that: 您只需要设置： 

[jdbc:mysql://localhost/dbanme]

instead of 代替 

[jdbc:mysql://localhost:3306/dbanme]

Because java compiler default understand a port 3306, so no need to fill "3306" after "localhost:" 由于Java编译器默认了解端口3306，因此无需在“ localhost：”后填写“ 3306”

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