J2EE系统配置注意事项

javac JdbcDemo.java

java -cp .;%classpath% JdbcDemo

 

Eclipse Java  反编译插件

 

JAVA_HOME

C:/Sun/AppServer/jdk

 

CLASSPATH

.;%JAVA_HOME%/lib;%JAVA_HOME%/lib/dt.jar;%JAVA_HOME%/lib/tools.jar;%JAVA_HOME%/jre/lib;%JAVA_HOME%/jre/lib/ext;%JAVA_HOME%/jre/lib/rt.jar;%TOMCAT_HOME%/common/lib/mysql-connector-java.jar;%TOMCAT_HOME%/common/lib

 

PATH

%JAVA_HOME%;%JAVA_HOME%/bin

 

TOMCAT_HOME

E:/Tomcat5.0

 

Tomcat当中应当有mysql-connector-java.jar，这样数据库连接才能正常

 

Mysql数据库当中，从cmd端进入数据库的命令格式如下：

$:/mysql/bin/mysql –u root –p

password: root