从Oracle10g开始，Oracle极大的增强了OEM工具，并通过服务器端进行EM工具全面展现。在10g中，客户端可以不必安装任何Oracle客户端工具，仅凭
从Oracle10g开始，Oracle极大的增强了OEM工具，并通过服务器端进行EM工具全面展现。
在Oracle10g中，客户端可以不必安装任何Oracle客户端工具，仅凭浏览器就可以调用强大的EM工具。
在Server端，可以通过如下命令启动EM工具控制台:
emctl start dbconsole
以下是启动过程:
启动之后我们就可以通过在浏览器端输入以下url访问:
:5500/em
但是一开始的登录图标并不是像上图这样的，而是这样的：，这就是乱码惹下的麻烦，下面我们就来解决这个问题：
在 $ORACLE_HOME/jdk/jre/lib 和 $ORACLE_HOME/jre/1.4.2/lib/ 目录下都有多种字符集字体配置文件:
我们只要用合适的中文字符集文件替换缺省文件即可,我选择使用font.properties.zh_CN.RedHat来替换缺省字体定义文件:
[oracle@danaly lib]$ cp font.properties.zh_CN.Redhat8.0 font.properties
替换之后需要清理一下Cache,重启EM即可.
Cache路径通常位于:
$ORACLE_HOME/oc4j/j2ee/oc4j_applications/applications/em/em/cabo/images/cache/zhs
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