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org.apache.jasper.JasperException:无法为JSP编译类

我是新手使用库,但我需要能够向忘记密码的用户发送电子邮件.我正在尝试使用JavaMail和Apache Commons Email来实现这一点.但是,我认为我必须错误地导入库.

当我尝试发送电子邮件时,收到以下消息:

Apr 17, 2011 11:54:33 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 60 in the jsp file: /sendpw.jsp
The type javax.mail.Authenticator cannot be resolved. It is indirectly referenced from required .class files
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代码:

57:                 EmailAuthentication ea = new EmailAuthentication();
58:                 String authUser = ea.getUser();
59:                 String authPw = ea.getPw();
60:                 email.setAuthenticator(new DefaultAuthenticator(authUser, authPw));
61:                 email.setTLS(true);
62:                 email.setFrom(authUser+"@gmail.com");
63:                 email.setSubject("Your Last Love Password"); …
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jsp tomcat compilation exception class

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