Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStream
at javax.mail.Session.loadProvidersFromStream(Session.java:928)
at javax.mail.Session.access$000(Session.java:174)
at javax.mail.Session$1.load(Session.java:870)
at javax.mail.Session.loadResource(Session.java:1084)
at javax.mail.Session.loadProviders(Session.java:889)
at javax.mail.Session.<init>(Session.java:210)
at javax.mail.Session.getInstance(Session.java:249)
at com.blog.util.Utils.sendMail(Utils.java:154)
at com.blog.util.test.main(test.java:14)
解决方法:移除myEclipse自带的EE包中的mail相关类:C:\MyProgram\MyEclipse 6.6\myeclipse\eclipse\plugins\com.genuitec.eclipse.j2eedt.core_6.6.0.zmyeclipse660200810\data\libraryset\EE_5\javaee.jar,解压,删除mail包,再打包。
但你可能还需要用到EE包里的servlet相关类,那可以从Tomcat的lib文件夹中复制servlet-api.jar到project中,用它来代替EE包,一切OK!
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