System.out.println(java.util.Arrays.asList(sun.misc.Launcher.getBootstrapClassPath().getURLs()).toString());
引导类加载器加载路径(我的机器上):
[file:/C:/j2sdk1.4.2_15/jre/lib/rt.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/i18n.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/sunrsasign.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/jsse.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/jce.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/charsets.jar,
file:/C:/j2sdk1.4.2_15/jre/classes]
扩展类加载器加载路径(我的机器上):
[file:/C:/j2sdk1.4.2_15/jre/lib/ext/dnsns.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/ext/ldapsec.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/ext/localedata.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/ext/myclass/,
file:/C:/j2sdk1.4.2_15/jre/lib/ext/sunjce_provider.jar]
引导类加载器加载路径(我的机器上):
[file:/C:/j2sdk1.4.2_15/jre/lib/rt.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/i18n.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/sunrsasign.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/jsse.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/jce.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/charsets.jar,
file:/C:/j2sdk1.4.2_15/jre/classes]
扩展类加载器加载路径(我的机器上):
[file:/C:/j2sdk1.4.2_15/jre/lib/ext/dnsns.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/ext/ldapsec.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/ext/localedata.jar,
file:/C:/j2sdk1.4.2_15/jre/lib/ext/myclass/,
file:/C:/j2sdk1.4.2_15/jre/lib/ext/sunjce_provider.jar]
本文介绍了Java中引导类加载器及扩展类加载器的具体加载路径。通过实例展示了不同类加载器加载的库文件及其所在目录,对于理解Java运行时环境的类加载机制有所帮助。
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