java 邮件发送 为什么不能运行成功 代码如下

2025-03-25 01:08:28
推荐回答(3个)
回答1:

你都没有设置邮件服务器....这句错误就是你没有设置邮件服务器或者你的用户名密码不正确

下面是我原来写的代码请参考:

首先是邮件模板的读取工具类

[java] view plaincopy
package gamutsoft.mail.test;  
  
import java.io.BufferedReader;  
import java.io.File;  
import java.io.FileInputStream;  
import java.io.FileNotFoundException;  
import java.io.IOException;  
import java.io.InputStreamReader;  
  
public class ReadHTML {  
  
    /** 
     * @param args 
     */  
    //public static void main(String[] args) {  
        // TODO Auto-generated method stub  
    public static String reMailString(){  
        //String info="";  
        StringBuffer buff=new StringBuffer();  
        InputStreamReader in=null;  
        BufferedReader br=null;  
        String path = System.getProperty("user.dir") + "/src/html/email2.html";  
        File file=new File(path);  
        try {  
            in=new InputStreamReader(new FileInputStream(file));  
            br=new BufferedReader(in);  
            String line=null;  
            while((line=br.readLine()) != null){  
                //System.out.println(line);  
                buff.append(line).append("\n");  
            }  
              
              
        } catch (FileNotFoundException e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        } catch (IOException e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        }finally{  
            if(in!=null){  
                try {  
                    in.close();  
                } catch (IOException e) {  
                    // TODO Auto-generated catch block  
                    e.printStackTrace();  
                }  
            }  
            if(br!=null){  
                try {  
                    br.close();  
                } catch (IOException e) {  
                    // TODO Auto-generated catch block  
                    e.printStackTrace();  
                }  
            }  
        }  
          
        return buff.toString();  
    }  
  
}  





邮件的html模板:
email2.html(乱写的不喜勿喷)
[html] view plaincopy
  
  
  
  
  
    

您好: 

  
        网易  
        
  
        欢迎光临,呵呵呵呵呵呵呵呵额  
        
  
        十分感谢  
        

您好:

  
        网易  
        
  
        欢迎光临,呵呵呵呵呵呵呵呵额  
        
  
        十分感谢  
        

您好:

  
        网易  
        
  
        欢迎光临,呵呵呵呵呵呵呵呵额  
        
  
        十分感谢  
        

您好:

  
        网易  
        
  
        欢迎光临,呵呵呵呵呵呵呵呵额  
        
  
        十分感谢  
        

您好:

  
        网易  
        
  
      
  
邮件发送类:这里的邮箱是为了自己的隐私我乱写了下,如果测试的话还得填写正确的
[java] view plaincopy
package gamutsoft.mail.test;  
  
import java.io.UnsupportedEncodingException;  
import java.util.Date;  
import java.util.Properties;  
  
import javax.mail.Address;  
import javax.mail.Authenticator;  
import javax.mail.BodyPart;  
import javax.mail.Message;  
import javax.mail.MessagingException;  
import javax.mail.Multipart;  
import javax.mail.Session;  
import javax.mail.Transport;  
import javax.mail.internet.InternetAddress;  
import javax.mail.internet.MimeBodyPart;  
import javax.mail.internet.MimeMessage;  
import javax.mail.internet.MimeMultipart;  
  
public class MailTest1 {  
      
      
       public static void send() throws MessagingException, UnsupportedEncodingException {  
             
           String info=ReadHTML.reMailString();  
             
            //邮件服务器  
           String host="smtp.163.com";  
            //发件人  
           String from="1111@163.com";  
            //收件人  
           String to="1111@qq.com";  
           //抄送人  
           String toCC1="111111@163.com";  
           String toCC2="444444@126.com";  
           String username="5555555555@163.com";  
           String password="51234";  
            //邮件会话属性  
            //Properties  p=System.getProperties();  
           Properties  p=new Properties();  
            p.put("mail.smtp.host", host);  
            /* 
                p.put("mail.smtp.auth", "true"); 
                //创建一个密码验证器 
                Authenticator auth = new MyAuthenticator(username, password); 
                //获得Session 
                Session session=Session.getDefaultInstance(p,auth); 
           */  
            //////////////////sesion获得Transprot方法  
           Session session=Session.getDefaultInstance(p,null);  
                session.setDebug(true);  
              
            /////////////////////  
           //创建Message信息  
           MimeMessage message=new MimeMessage(session);  
           //创建邮件发送者地址  
           Address fromAD = new InternetAddress(from,"李建勋");  
           //nternetAddress(from)  
           //设置邮件发送者  
                    message.setFrom(fromAD);      
           //创建邮件的接收地址  
           Address toAD = new InternetAddress(to);  
           //创建抄送人数组  
           Address toCAD1=new InternetAddress(toCC1);  
           Address toCAD2=new InternetAddress(toCC2);  
           Address [] toCs={toCAD1,toCAD2};  
           //设置邮件的接收地址  
                    message.setRecipient(Message.RecipientType.TO,toAD);  
                    message.addRecipients(Message.RecipientType.CC,toCs );  
            //设置发送时间  
                    message.setSentDate(new Date());  
            //设置主题    
                    message.setSubject("Hello JavaMail44");   
            /* 
                //设置消息正文,文本          
                        message.setText("Welcome To JavaMail"); 
                //设置HTML内容 
                        message.setContent("百度","text/html;charset=utf-8"); 
            */    
            // MimeMultipart类是一个容器类,包含MimeBodyPart类型的对象       
            Multipart mainPart = new MimeMultipart();    
            //创建一个包含HTML内容的MimeBodyPart  
            BodyPart body=new MimeBodyPart();  
            //设置html内容  
                body.setContent(info,"text/html;charset=utf-8");  
            //将MimeMultipart设置为邮件内容  
                mainPart.addBodyPart(body);  
                message.setContent(mainPart);  
            ///////////////////////sesion获得Transprot  
            Transport transport=session.getTransport("smtp");  
                transport.connect(host, username, password);  
                transport.sendMessage(message,message.getAllRecipients());  
                transport.close();  
                  
            //////////////////////  
              
            //  Transport.send(message);  
              
             
       }  
       public static void main(String[] args) throws MessagingException, UnsupportedEncodingException  {  
            // TODO Auto-generated method stub  
          send();  
        }  
       
   
          
      
      
      
}  

接下来是MyAuthenticator类[java] view plaincopy
package gamutsoft.mail.test;  
  
import javax.mail.Authenticator;  
import javax.mail.PasswordAuthentication;  
  
public class MyAuthenticator extends Authenticator{  
    /*在使用Authenticator这个抽象类时,我们必须采用继承该抽象类的方式,并且该继承类必须具 
     * 有返回PasswordAuthentication对象(用于存储认证时要用到的用户名、密码)getPasswordAuthentication() 
     * 方法。并且要在Session中进行注册,使Session能够了解在认证时该使用哪个类。  
     * */  
    String username=null;  
    String password=null;  
    public MyAuthenticator(){  
          
    }  
    public MyAuthenticator(String username,String password){  
        this.username=username;  
        this.password=password;  
    }  
    public PasswordAuthentication getPasswordAuthentication(){  
          
        return new PasswordAuthentication(username, password);  
    }  
      
      
}

回答2:

  1. 你邮件发送帐号是163的,那么服务器就应该设置163的。transport.connect 要是163.

  2. 你的邮件没有开启pop发送。去邮箱设置。

  3. 邮箱的设置里面,找到账户-》POP3/IMAP/SMTP选择开启POP3/SMTP服务

回答3:

你这个可能是你的163邮箱里没设置可作为smtp服务器发送邮件,你进去设置一下应该就好了。

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