[安装]图形界面打开失败“Exception in thread "main" java.lang...“

Inkcup

环境：

Oracle Linux 7.9

Oracle database 11.2.0.4

                               
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在使用图形界面安装的时候，出现如下报错：

[oracle@dbserver database]$ ./runInstaller

Starting Oracle Universal Installer...

Checking Temp space: must be greater than 120 MB.   Actual 46781 MB    Passed

Checking swap space: must be greater than 150 MB.   Actual 3967 MB    Passed

Checking monitor: must be configured to display at least 256 colors

    >>> Could not execute auto check for display colors using command /usr/bin/xdpyinfo. Check if the DISPLAY variable is set.    Failed <<<<

Some requirement checks failed. You must fulfill these requirements before

continuing with the installation,

Continue? (y/n) [n] y

>>> Ignoring required pre-requisite failures. Continuing...

Preparing to launch Oracle Universal Installer from /tmp/OraInstall2025-06-13_12-10-37PM. Please wait ...[oracle@lisdg63 database]$ Exception in thread "main" java.lang.NoClassDefFoundError

        at java.lang.Class.forName0(Native Method)

        at java.lang.Class.forName(Class.java:164)

        at java.awt.Toolkit$2.run(Toolkit.java:821)

        at java.security.AccessController.doPrivileged(Native Method)

        at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:804)

        at com.jgoodies.looks.LookUtils.isLowResolution(LookUtils.java:484)

        at com.jgoodies.looks.LookUtils.<clinit>(LookUtils.java:249)

        at com.jgoodies.looks.plastic.PlasticLookAndFeel.<clinit>(PlasticLookAndFeel.java:135)

        at java.lang.Class.forName0(Native Method)

        at java.lang.Class.forName(Class.java:242)

        at javax.swing.SwingUtilities.loadSystemClass(SwingUtilities.java:1779)

        at javax.swing.UIManager.setLookAndFeel(UIManager.java:453)

        at oracle.install.commons.util.Application.startup(Application.java:785)

        at oracle.install.commons.flow.FlowApplication.startup(FlowApplication .java:165)

        at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:182)

        at oracle.install.commons.base.driver.common.Installer.startup(Installer.java:348)

        at oracle.install.ivw.db.driver.DBInstaller.startup(DBInstaller.java:124)

        at oracle.install.ivw.db.driver.DBInstaller.main(DBInstaller.java:155)

这种情况多是由于缺包，如果没有显示缺乏的依赖包，那么需要检查环境变量的设置是否正确，

楼主正是因为环境变量中的IP没有设置为当前内网分配给本地的IP，导致图形界面显示失败。

还有一种情况则是运行图形界面的软件有问题，比如Moba的图形界面无法显示时，可以选择其他图形界面软件，如Xmanager再行测试。