javaMail 向外部郵箱發郵件失敗：550 5.7.1 Unable to relay      摘要: javamail郵件發送失敗，報錯：
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  閱讀全文

Oracle jdk1.6 版本下載位置      摘要: java jdk1.6 下載地址  閱讀全文

pdf轉換成img      摘要: java實現pdf轉換成img圖片源代碼，附帶所需jar包下載地址！  閱讀全文