:send方法重载了一下, 第一个不要认证, 第二个要认证, 加上了USER和PASSWD /** * Date : 20010628 * Function : SendMail * @author : Axman * 这是一个用Socket直接发信的类,用于没有装SENDMAIL和QMAIL的服器。 * Method : setSmtpServer(String smtpServer):设置要连结的主机 no return; createConnect(): SOCKET连结本 本方法對例外進行特殊捕获,如果连结出错则返会假 使信息能被程式员控制。 return boolean do_command(String s):执行一个输入并返回该输入的响应。
return String send(String to,String from,String subject,String message) 发信主程序。用于普通SMTP服务器。 return boolean send(String to,String from,String subject,String message,String username,String passwd) 重载发信程序,用于需要认证的服务器。 return boolean Base64Encode(String s) Base64编码方法,可以解决不同平台上的乱码问题。 return String Note:这是一个JavaBean,加上了main()方法也可以作为APPLICATION运行,便于调试,在作为BEAN使用时可以保留main()方法 不影响类的调用。 */
CODE:
import java.net.*; import java.io.*; public class SendMail { private Socket sc; private int PORT = 25; private BufferedReader in; private PrintWriter out; private String smtpServer; public void setSmtpServer(String smtpServer) { this.smtpServer = smtpServer; }
public boolean createConnect() { if (smtpServer == null) { smtpServer = "localhost"; } try { sc = new Socket(smtpServer, PORT); in = new BufferedReader(new InputStreamReader(sc.getInputStream())); out = new PrintWriter(sc.getOutputStream()); } catch (IOException e) { return false; } return true; }
public String do_command(String s) throws IOException { if (s != null) { out.print(s); out.flush(); } String line; if ((line = in.readLine()) != null) { return line; } else { return ""; } } public boolean send( String to, String from, String subject, String message) { subject = Base64Encode(subject); subject = "=?GB2312?B?" + subject + "?="; message = Base64Encode(message);
try { String line; do_command(null); if (-1 == (line = do_command("HELO " + smtpServer + " ")).indexOf( "250")) return false;
if (-1 == (line = do_command("MAIL FROM: " + from + " ")).indexOf( "250")) return false; if (-1 == (line = do_command("RCPT TO: " + to + " ")).indexOf("250")) return false; if (-1 == (line = do_command("DATA ")).indexOf("354")) return false; message = "Content-Type: text/html
" + message; message = "Subject: " + subject + " " + message; message = "To: " + to + " " + message; message = "Content-Transfer-Encoding: base64 " + message; message = "MIME-Version: 1.0 " + message; message = "From: " + from + " " + message; out.print(message + " "); if (-1 == (line = do_command(" . ")).indexOf("250")) return false; in.close(); out.close(); sc.close(); } catch (IOException e) { return false; } return true; }
public boolean send( String to, String from, String subject, String message, String username, String passwd) { username = Base64Encode(username); passwd = Base64Encode(passwd); subject = Base64Encode(subject); subject = "=?GB2312?B?" + subject + "?="; message = Base64Encode(message); try { String line; do_command(null); if (-1 == do_command("EHLO " + smtpServer + " ").indexOf("250")) return false; while (true) { if (-1 != in.readLine().indexOf("250 ")) break; } if (-1 == do_command("AUTH LOGIN ").indexOf("334")) return false; if (-1 == do_command(username + " ").indexOf("334")) return false; if (-1 == do_command(passwd + " ").indexOf("235")) return false; if (-1 == do_command("MAIL FROM: " + from + " ").indexOf("250")) return false; if (-1 == do_command("RCPT TO: " + to + " ").indexOf("250")) return false; if (-1 == do_command("DATA ").indexOf("354")) return false; message = "Content-Type: text/html
" + message; message = "Subject: " + subject + " " + message; message = "To: " + to + " " + message; message = "Content-Transfer-Encoding: base64 " + message; message = "MIME-Version: 1.0 " + message; message = "From: " + from + " " + message; out.print(message + " "); if (-1 == do_command(" . ").indexOf("250")) return false; in.close(); out.close(); sc.close(); } catch (IOException e) { return false; } return true; }
public static String Base64Encode(String s) { if (s == null || s.length() == 0) return ""; String EncodingTable = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; byte[] Buffer = s.getBytes(); int ReadNow, i, res; char[] WriteBuf = new char[4]; char[] Buf = new char[3]; String EncodedStr = ""; int ReadIndex = 0; int Len = Buffer.length; boolean isEnd; int BytesWritten = 0; ReadNow = 0; do { isEnd = false; for (i = 0; i < 3; i++) { if (ReadIndex >= Len) { isEnd = true; ReadNow = i; break; }
Buf[i] = (char) (((byte)Buffer[ReadIndex]) & 0x00FF); ReadIndex = ReadIndex + 1; } if (isEnd) break; WriteBuf[0] = EncodingTable.charAt((Buf[0] >> 2) & 0x003F); WriteBuf[1] = EncodingTable.charAt( ((Buf[0] & 3) << 4 | (Buf[1] >> 4)) & 0x003F); WriteBuf[2] = EncodingTable.charAt( ((Buf[1] & 15) << 2 | (Buf[2] >> 6)) & 0x003F); WriteBuf[3] = EncodingTable.charAt((Buf[2] & 63) & 0x003F);
for (i = 0; i < 4; i++) EncodedStr = EncodedStr + WriteBuf[i];
BytesWritten = BytesWritten + 4;
if ((BytesWritten % 76) == 0) { EncodedStr = EncodedStr + " "; } } while (ReadNow != 3);
if (ReadNow < 3) { switch (ReadNow) { case 1 : WriteBuf[0] = EncodingTable.charAt((Buf[0] >> 2) & 0x003F); WriteBuf[1] = EncodingTable.charAt(((Buf[0] & 3) << 4) & 0x003F); WriteBuf[2] = '='; WriteBuf[3] = '=';
for (i = 0; i < 4; i++) EncodedStr = EncodedStr + WriteBuf[i];
break;
case 2 : WriteBuf[0] = EncodingTable.charAt((Buf[0] >> 2) & 0x003F); WriteBuf[1] = EncodingTable.charAt( ((Buf[0] & 3) << 4 | (Buf[1] >> 4)) & 0x003F); WriteBuf[2] = EncodingTable.charAt(((Buf[1] & 15) << 2) & 0x003F); WriteBuf[3] = '=';
for (i = 0; i < 4; i++) EncodedStr = EncodedStr + WriteBuf[i];
break; default : break; } } return (EncodedStr); }
public static void main(String[] args) { SendMail sm = new SendMail(); sm.setSmtpServer("127.0.0.1"); if (sm.createConnect()) { String to = "jinhua@staff.soim.com"; String from = "axman@soim.com"; String subject = "中文测试!"; String message = "大家好啊!"; String user = "axman"; String pw = "111111"; System.out.print(sm.send(to, from, subject, message, user, pw)); } else { System.out.println("怎么连不上SMTP服务器啊? "); return; } } }
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