javaMail 向外部邮箱发邮件失败：550 5.7.1 Unable to relay      摘要: javamail邮件发送失败，报错：
javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 Unable to relay

at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1196)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:584)
at com.smartdot.mau.mail.MailSend.sendHtmlMail(MailSend.java:308)
at com.smartdot.mau.thread.SendMailThread.run(SendMailThread.java:34)
at java.util.conc  阅读全文

Oracle jdk1.6 版本下载位置      摘要: java jdk1.6 下载地址  阅读全文

pdf转换成img      摘要: java实现pdf转换成img图片源代码，附带所需jar包下载地址！  阅读全文