javamail可以';我看不懂信
我在这里上课,我读我的电子邮件(gmail) 我的班级代码javamail可以';我看不懂信,java,jakarta-mail,Java,Jakarta Mail,我在这里上课,我读我的电子邮件(gmail) 我的班级代码 Properties props = System.getProperties(); Session session = Session.getDefaultInstance(props, null); Store store = session.getStore("imaps"); store.connect("imap.gmail.com", "mail@gmail.com", "pass"); Fo
Properties props = System.getProperties();
Session session = Session.getDefaultInstance(props, null);
Store store = session.getStore("imaps");
store.connect("imap.gmail.com", "mail@gmail.com", "pass");
Folder inbox = store.getFolder("Inbox");
inbox.open(Folder.READ_WRITE);
FlagTerm ft = new FlagTerm(new Flags(Flags.Flag.SEEN), false);
Message messages[] = inbox.search(ft);
for(Message message:messages)
{
Multipart parts = (Multipart)message.getContent();//line 26
Object p = parts.getBodyPart(0).getContent();
String q = p.toString();//object has the body content
//code
}
但我有这个问题
SEVERE: "Servlet.service()" pour la servlet Login a généré une exception
java.lang.ClassCastException: java.lang.String cannot be cast to javax.mail.Multipart
at pack.Testmail.<init>(Testmail.java:26)
at pack.Login.doGet(Login.java:39)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Unknown Source)
severy:“Servlet.service()”将Servlet登录设置为généréune异常
java.lang.ClassCastException:java.lang.String不能转换为javax.mail.Multipart
Testmail.(Testmail.java:26)
在pack.Login.doGet(Login.java:39)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
位于org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
位于org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
位于org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
位于org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
位于org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
位于org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
位于org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
位于org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
位于org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
位于org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
位于java.lang.Thread.run(未知源)
该特定消息显然不是多部分消息
将内容作为Java对象返回。返回对象的类型
当然取决于内容本身。例如,对象
为“text/plain”返回的内容通常是字符串对象。这个
为“多部分”内容返回的对象始终是多部分
子类。对于DataHandler未知的内容类型
在系统中,将返回一个输入流作为这是一个
仅调用DataHandler的getContent()的便利方法
方法
您可以检查部件的MIME类型,以查看其内容的类型
if (message.isMimeType("message/rfc822")) {
Message message = (Message) part.getContent();
...
}
else if (message.isMimeType("multipart/*")) {
Multipart mp = (Multipart) part.getContent();
for (int i = 0, max = mp.getCount(); i < max; i++) {
...
}
}
else if (message.isMimeType("text/*")) {
String text = (String) part.getContent();
...
}
else {
...
}
if(message.isMimeType(“message/rfc822”)){
Message Message=(Message)part.getContent();
...
}
else if(message.isMimeType(“multipart/*”){
Multipart mp=(Multipart)part.getContent();
对于(int i=0,max=mp.getCount();i
tnk征求意见,但我如何解决这个问题?不久之后,您可能会需要来自网络的更多帮助。您还可以在上找到一些示例代码进行下载。请尝试使用(只是建议,不确定它是否适合您的情况):multipartpart=new MimeMultipart();BodyPart BodyPart=parts.getBodyPart(0)代码>