Java 连接到服务器时出现问题

如何消除此错误？为什么不连接？

尝试使用-cp参数，即

C:\Users\shilps\Desktop>set PATH=%PATH%;C:\Program Files\Java\jdk1.6.0_22\bin

C:\Users\shilps\Desktop>javac Populate.java

C:\Users\shilps\Desktop>SET CLASSPATH = .;mysql-connector-java-5.1.13-bin.jar

C:\Users\shilps\Desktop>java Populate db.properties flights.data reservations.data


Cannot connect to database server
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at Populate.Populate_dbconnect(Populate.java:47)
        at Populate.<init>(Populate.java:35)
        at Populate.main(Populate.java:28)

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如何消除此错误？为什么它不连接？

java -cp .;mysql-connector-java-5.1.13-bin.jar Populate db.properties flights.data reservations.data