I'm working through the example code of chapter 4 of Core Servlets and JavaServer Pages (http://volume1.coreservlets.com/archive/Chapter4.html) and I get the above error when I try to compile the BeanUtilities.java file. I thought initially it was my classpath but that seems to include the required .jar files (looking at the starttomcat prompt). I think I have the .jar files in the correct directory ($CATALINA_HOME/lib/ I'm running tomcat 7 on fedora). Any advice? Thanks & I hope your day is going better than mine, sigh.
user3916718
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bean utils 不包含在JDK 或Tomcat 的默认包中，因此您需要手动添加它，因为它是一个依赖项。
如果您正在使用 J2EE 构建和 Web 项目
然后在您的目录中添加bean utils（.jar 文件） 。WebContent/WEB-INF/lib
还要在此目录中添加所有依赖项
于 2014-08-07T05:10:07.553 回答