我正尝试使用JavaMail API发送电子邮件。这里是我的servlet代码:java.lang.NoClassDefFoundError:无法初始化类javax.mail.internet.InternetAddress
package com.lsp.web;
import com.lsp.service.Mailer;
import javax.ejb.EJB;
import javax.mail.MessagingException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet(name = "contact", urlPatterns = {"/contact"})
public class ContactServlet extends SpringInjectedServlet {
@EJB
private Mailer emailBean;
@Override
public void init() throws ServletException {
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doPost(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String customerEmail = req.getParameter("email");
String subject = req.getParameter("subject");
String body = req.getParameter("message");
String error = null;
String succMess = null;
try {
javax.mail.internet.InternetAddress ia = new javax.mail.internet.InternetAddress(customerEmail);
ia.validate();
emailBean.send(customerEmail, subject, body);
req.setAttribute("succMessage", succMess);
req.getRequestDispatcher("sent.jsp").forward(req, resp);
} catch (javax.mail.internet.AddressException ae) {
error = "您指出的邮箱地址不存在";
req.setAttribute("errorMessage", error);
req.getRequestDispatcher("contact.jsp").forward(req, resp);
}
catch (MessagingException mex) {
error = "发送失败";
req.setAttribute("errorMessage", error);
req.getRequestDispatcher("contact.jsp").forward(req, resp);
}
}
}
在哪里检查用户的地址线,其中:
javax.mail.internet.InternetAddress ia = new javax.mail.internet.InternetAddress(customerEmail);
ia.validate();
我得到了一个例外。 java.lang.NoClassDefFoundError:无法初始化类javax.mail.internet.InternetAddress
在pom.xml中,我添加了这些行:
<!--JavaMail API-->
<dependency>
<groupId>javax.mail</groupId>
<artifactId>javax.mail-api</artifactId>
<version>1.5.1</version>
</dependency>
<!--EJB-->
<dependency>
<groupId>javax.ejb</groupId>
<artifactId>ejb-api</artifactId>
<version>3.0</version>
</dependency>
我使用Tomcat。 有人可以告诉我为什么会发生这种情况,以及我如何解决问题。
谢谢。
您似乎错过了适当的Java EE库。 –
你如何编译和运行该代码?您必须确保在类路径中具有所有必需的库,不仅在编译时,而且在运行代码时。 – Jesper
你如何构建和运行你的应用程序?你在使用Maven吗?如果是这样,如果你向我们展示你的pom.xml文件,这可能会有所帮助。 – andersschuller