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Java连接mysql的方法_MySQL

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Release: 2016-05-31 08:48:33
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Error : java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
问题原因:java开发环境中没有加载mysql数据库的驱动程序
解决方案:
下载mysql支持的驱动程序:http://dev.mysql.com/downloads/connector/j/
下载后直接安装,然后在 mysql 的安装目录里面会有  Connector J 5.1.30  相应版本的文件夹,里面有 mysql-connector-java-5.1.30-bin.jar,正是驱动文件。点击java的项目名称,在 ecplise 里面,依次点击    java项目名称——  build path  ——  configure build path  ——   Add External JARS,然后把mysql-connector-java-5.1.30-bin.jar文件引进来就行了。
下面是连接测试代码:
其中 URL=协议名+IP地址(域名)+端口+数据库名称;用户名和密码是指登录数据库时所使用的用户名和密码。具体示例创建MySQL的数据库连接代码如下:
              Connection connectMySQL  =  DriverManager.geiConnection(“jdbc:mysql://localhost:3306/DataBase","root" ,"密码" );

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