Centos mysql 连接器 java - JDBC 驱动程序
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Centos mysql connector java - JDBC Driver
提问by arlind
I try to run this java.jar file in centos 5 and i see this error. i installed java with
我尝试在 centos 5 中运行这个 java.jar 文件，我看到了这个错误。我安装了java
yum install java
but i think jdbc is not installed coz when i type this command
但我认为当我输入这个命令时没有安装 jdbc
yum install mysql-connector-java
i get No package mysql-connector-java available. Nothing to do
我得到没有可用的包 mysql-connector-java。没事做
when i run this commandd to start jar file
当我运行这个命令来启动 jar 文件时
java -jar "/home/httpd/5plus.net/httpdocs/test/server/ChatServer.jar"
i see this message
我看到这条消息
[root@google ~]# java -jar "/home/httpd/5plus.net/httpdocs/test/server/ChatServer.jar"
-- Sat Apr 05 10:45:01 GMT 2014 --- Start Main Server ---
-- Sat Apr 05 10:45:01 GMT 2014 --- Can't register JDBC driver: org.gjt.mm.my sql.Driver, Exception: java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver ---
-- Sat Apr 05 10:45:01 GMT 2014 --- Port 8090 Listen Start ---
-- Sat Apr 05 10:45:02 GMT 2014 --- Client Connected: Ip = 208.54.35.217 -- -
-- Sat Apr 05 10:45:03 GMT 2014 --- InputData From 208.54.35.217 useridx: 0 D ata: LOGIN ---
java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost/plus?user=plus&password=plus123&characterEncoding=utf8
-- Sat Apr 05 10:45:03 GMT 2014 --- Can't create a new connection for jdbc:my sql://localhost/plus?user=plus&password=plus123&characterEncoding=utf8 ---
回答by TMBT
You need the driver for the JDBC. The driver you appear to be using is old. If you can, you should update it to the one found here: https://dev.mysql.com/downloads/connector/j/.
您需要 JDBC 的驱动程序。您使用的驱动程序似乎很旧。如果可以，您应该将其更新为此处找到的：https: //dev.mysql.com/downloads/connector/j/。
If you're doing this at the terminal, you're going to have to include the driver in the classpath. Using an IDE will make it easier. If you're using Eclipse, simply right-click your project, then select Build Path > Configure Build Path > Libraries > Add External Jars. Select the driver from your Downloads folder (or wherever you put it), and you're good to go.
如果您在终端执行此操作，则必须将驱动程序包含在类路径中。使用 IDE 会更容易。如果您使用的是 Eclipse，只需右键单击您的项目，然后选择 Build Path > Configure Build Path > Libraries > Add External Jars。从您的下载文件夹（或您放置的任何位置）中选择驱动程序，您就可以开始使用了。
