java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStream for send mail through Java

Question

这是我的例外 LineInputStream

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[=10=]0(Session.java:174)
        at javax.mail.Session.load(Session.java:870)
        at javax.mail.Session.loadAllResources(Session.java:1130)
        at javax.mail.Session.loadProviders(Session.java:886)
        at javax.mail.Session.<init>(Session.java:210)
        at javax.mail.Session.getDefaultInstance(Session.java:299)
        at com.pack.utils.SendMail.sendMail(SendMail.java:67)
        at com.pack.utils.SendMail.sendMail(SendMail.java:34
)
    at com.pack.utils.SendMail.main(SendMail.java:133)

我的依赖 jar 是 java 1.6 , mailapi-1.4.4

我在这一行遇到错误

sessions[0] = Session.getDefaultInstance(props, null);

Answer 1

将此添加到您的 pom，或将 JAR 添加到您的类路径，

<dependency>
    <groupId>com.sun.mail</groupId>
    <artifactId>javax.mail</artifactId>
    <version>1.6.0</version>
</dependency>

Answer 2

这个解决方案对我有帮助

我在 java.policy 文件中添加了文件权限，并将 Java6 更改为 Java7

permission java.io.FilePermission  "<<ALL FILES>>", "read"; };

java.policy 文件在 C:\Program Files\Java\jre1.7.0\lib\security 此路径

中可用

java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStream for send mail through Java

java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStream for send mail through Java

java

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