&引用;“java.net.connectionException”;显示连接被拒绝
我正在尝试使用java邮件api,并且在servlet中有以下代码用于sen mail。我找不到解决错误的方法&引用;“java.net.connectionException”;显示连接被拒绝,java,email,servlets,Java,Email,Servlets,我正在尝试使用java邮件api,并且在servlet中有以下代码用于sen mail。我找不到解决错误的方法 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub // Recipient's email ID n
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// Recipient's email ID needs to be mentioned.
String to = "xyz@gmail.com";
// Sender's email ID needs to be mentioned
String from = "abc.com";
// Assuming you are sending email from localhost
String host = "localhost";
// Get system properties
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
// Get the default Session object.
Session session = Session.getDefaultInstance(properties);
// Set response content type
response.setContentType("text/html");
PrintWriter out = response.getWriter();
try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(session);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// Set Subject: header field
String subject=request.getParameter("subject");
String content=request.getParameter("mail");
message.setSubject(subject);
// Now set the actual message
message.setText(content);
// Send message
Transport.send(message);
String title = "Send Email";
String res = "Sent message successfully....";
String docType =
"<!doctype html public \"-//w3c//dtd html 4.0 " +
"transitional//en\">\n";
out.println(docType +
"<html>\n" +
"<head><title>" + title + "</title></head>\n" +
"<body bgcolor=\"#f0f0f0\">\n" +
"<h1 align=\"center\">" + title + "</h1>\n" +
"<p align=\"center\">" + res + "</p>\n" +
"</body></html>");
}catch (MessagingException mex) {
mex.printStackTrace();
}
}
受保护的void doGet(HttpServletRequest请求,HttpServletResponse响应)抛出ServletException,IOException{
//TODO自动生成的方法存根
//需要提及收件人的电子邮件ID。
字符串to=”xyz@gmail.com";
//需要提及发件人的电子邮件ID
字符串from=“abc.com”;
//假设您正在从本地主机发送电子邮件
String host=“localhost”;
//获取系统属性
Properties=System.getProperties();
//安装邮件服务器
setProperty(“mail.smtp.host”,host);
//获取默认会话对象。
Session Session=Session.getDefaultInstance(属性);
//设置响应内容类型
response.setContentType(“text/html”);
PrintWriter out=response.getWriter();
试一试{
//创建默认的mimessage对象。
MimeMessage message=新MimeMessage(会话);
//设置自:标题的标题字段。
message.setFrom(新的InternetAddress(from));
//设置为:标题的标题字段。
message.addRecipient(message.RecipientType.TO,
新互联网地址(至);;
//设置主题:标题字段
字符串subject=request.getParameter(“subject”);
字符串内容=request.getParameter(“邮件”);
message.setSubject(主题);
//现在设置实际消息
message.setText(内容);
//发送消息
传输。发送(消息);
String title=“发送电子邮件”;
String res=“已成功发送消息…”;
字符串docType=
“\n”;
out.println(docType+
“\n”+
“”+标题+“\n”+
“\n”+
“”+标题+“\n”+
““+res+”
\n”+
"");
}捕获(消息例外mex){
mex.printStackTrace();
}
}
我的控制台中出现以下错误:
原因:java.net.ConnectException:连接被拒绝:连接在
java.net.DualStackPlainSocketImpl.connect0(本机方法)位于
位于的java.net.DualStackPlainSocketImpl.socketConnect(未知源)
java.net.AbstractPlainSocketImpl.doConnect(未知源代码)位于
位于的java.net.AbstractPlainSocketImpl.connectToAddress(未知源)
java.net.AbstractPlainSocketImpl.connect(未知源代码)位于
位于的java.net.PlainSocketImpl.connect(未知源)
位于的java.net.socksocketimpl.connect(未知源)
位于的java.net.Socket.connect(未知源)
位于的java.net.Socket.connect(未知源)
com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:312)
位于com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:236)
在
com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2019)
... 还有29个
您没有在
localhost
上运行SMTP服务器,您正在告诉API使用localhost
作为邮件服务器
您需要安装本地SMTP服务器,或将SMTP主机名设置为您有权访问的服务器,例如:
String host = "smtp.yourisp.com"; // real server name required here
// Get system properties
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
您需要在本地邮箱上安装smtp服务器或使用一些现有的smtp服务器(如yahoo、gmail等。您可以在internet上获得smtp设置)。您可以使用ApacheJames服务器,并了解有关它的邮件发送api。
String from=“abc.com”代码>-首先,这不是一个有效的电子邮件地址。