步骤一：
package com.bw.pojo;public class MyEmail { private static MyEmail email; private String host = "smtp.163.com"; // 发送方邮箱host private String from = "17600246280@163.com"; // 发送方邮箱 private String user = "17600246280"; // 发送方邮箱账号 private String pwd = "ovel1314.21"; // 发送方邮箱密码 public static MyEmail getEmail(){ if(email!=null){ return email; }else{ email = new MyEmail(); return email; } } public String getFrom() { return from; } public String getUser() { return user; } public String getPwd() { return pwd; } public String getHost() { return host; }}步骤二：
package com.bw.service;public interface ISendEmailService { /** * 写一个发送邮件的方法 * @param content * @param title * @param address * @param affix * @param affixName */ void send(String content, String title, String address, String affix, String affixName);}
实现类：
package com.bw.service.Impl;import com.bw.pojo.MyEmail;import com.bw.service.ISendEmailService;import javax.activation.DataHandler;import javax.activation.DataSource;import javax.activation.FileDataSource;import javax.mail.*;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeBodyPart;import javax.mail.internet.MimeMessage;import javax.mail.internet.MimeMultipart;import java.util.ArrayList;import java.util.List;import java.util.Properties;public class SendEmailServiceImpl implements ISendEmailService { @Override public void send(String content, String title, String address, String affix, String affixName) { MyEmail myEmail = MyEmail.getEmail(); String host = myEmail.getHost(); String user = myEmail.getUser(); String pwd = myEmail.getPwd(); String from = myEmail.getFrom(); Properties props = new Properties(); // 设置发送邮件的邮件服务器的属性（这里使用网易的smtp服务器） -->需要修改 props.put("mail.smtp.host", host); // 需要经过授权，也就是有户名和密码的校验，这样才能通过验证（一定要有这一条） props.put("mail.smtp.auth", "true"); // 用刚刚设置好的props对象构建一个session Session session = Session.getDefaultInstance(props); // 有了这句便可以在发送邮件的过程中在console处显示过程信息，供调试使 // 用（你可以在控制台（console)上看到发送邮件的过程） session.setDebug(true); // 用session为参数定义消息对象 MimeMessage message = new MimeMessage(session); try { // 加载发件人地址 -->需要修改 message.setFrom(new InternetAddress(from)); // 加载收件人地址 -->需要修改 message.addRecipients(Message.RecipientType.TO, address); List<InternetAddress> list = new ArrayList();//不能使用string类型的类型，这样只能发送一个收件人 String []median=address.split(",");//对输入的多个邮件进行逗号分割 for(int i=0;i<median.length;i++){ list.add(new InternetAddress(median[i])); } InternetAddress[] addresses =(InternetAddress[])list.toArray(new InternetAddress[list.size()]); message.addRecipients(Message.RecipientType.TO, addresses); // 加载标题 --->也需要修改 message.setSubject(title); // 向multipart对象中添加邮件的各个部分内容，包括文本内容和附件 Multipart multipart = new MimeMultipart(); // 设置邮件的文本内容 BodyPart contentPart = new MimeBodyPart(); //需要修改的地方 写的内容 contentPart.setText(content); multipart.addBodyPart(contentPart); // 添加附件 if(affix != null && !"".equals(affix)) { BodyPart messageBodyPart = new MimeBodyPart(); DataSource source = new FileDataSource(affix); // 添加附件的内容 messageBodyPart.setDataHandler(new DataHandler(source)); // 添加附件的标题 // 这里很重要，通过下面的Base64编码的转换可以保证你的中文附件标题名在发送时不会变成乱码 sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder(); messageBodyPart.setFileName("=?GBK?B?"+ enc.encode(affixName.getBytes()) + "?="); multipart.addBodyPart(messageBodyPart); } // 将multipart对象放到message中 message.setContent(multipart); // 保存邮件 message.saveChanges(); // 发送邮件 Transport transport = session.getTransport("smtp"); // 连接服务器的邮箱 transport.connect(host, user, pwd); // 把邮件发送出去 transport.sendMessage(message, message.getAllRecipients()); transport.close(); } catch (Exception e) { e.printStackTrace(); } }}步骤三：
package com.bw.controller;import com.bw.pojo.User;import com.bw.service.IUserService;import com.bw.util.FileUtil;import com.bw.util.RandomUtil;import com.bw.util.TwoDimensionCode;import com.google.zxing.WriterException;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.multipart.MultipartFile;import org.springframework.web.servlet.ModelAndView;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import java.io.IOException;import java.util.HashMap;import java.util.List;import java.util.Map;@Controller@RequestMapping("/user")public class UserController { @Resource private IUserService iUserService; //查询所有 @RequestMapping("selUser") public ModelAndView selUser(ModelAndView modelAndView) throws Exception{ List<User> userList= iUserService.selUser(); modelAndView.addObject("userList",userList); modelAndView.setViewName("show"); return modelAndView; } //模糊查询 @RequestMapping("fuzzyUser") public ModelAndView fuzzyUser(ModelAndView modelAndView,String name){ List<User> fuzzyUser= iUserService.fuzzyUser(name); modelAndView.addObject("fuzzyUser",fuzzyUser); modelAndView.setViewName("show"); return modelAndView; } //注册 @RequestMapping("registerUser") public ModelAndView registerUser(@RequestParam(value = "file",required = false)MultipartFile file, HttpServletRequest request, ModelAndView modelAndView, User user)throws Exception{ if (!file.isEmpty()){ String headPhoto= FileUtil.uploadFile(file,request); user.setName(headPhoto); }else { user.setName(null); } iUserService.registerUser(user); modelAndView.setViewName("redirect:/user/selUser.action"); return modelAndView; } //发送二维码验证 @RequestMapping(value = "sendCode",method = RequestMethod.GET) @ResponseBody public Map<String,Object> sendCode(String email) throws IOException, WriterException { String title="XXX资讯后台管理系统"; String code= RandomUtil.getStringRandom(); String content="欢迎注册本平台，你的验证码是："+code; TwoDimensionCode.QRCodeTest qrCodeTest = new TwoDimensionCode.QRCodeTest(); qrCodeTest.testEncodeToEmail(content,300,300,"piao","png",title,email); Map<String,Object> map=new HashMap<>(); map.put("checkCode",code); return map; } //检查邮箱是否重复 @RequestMapping(value = "/checkEmail",method = RequestMethod.GET) @ResponseBody public Map<String,Object> checkEmail(String email){ Map<String,Object> map=new HashMap<>(); map.put("flag","邮箱没有重复！"); return map; } //批量删除 @RequestMapping("batchUser") public ModelAndView batchUser(ModelAndView modelAndView,String ids){ iUserService.batchUser(ids); modelAndView.setViewName("show"); return modelAndView; }}步骤四：
<%-- Created by IntelliJ IDEA. User: Administrator Date: 2017/9/21/021 Time: 15:31 To change this template use File | Settings | File Templates.--%><%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="UTF-8" isELIgnored="false" %><% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path;%><html><head> <title>Title</title> <script src="/resources/jquery/jquery-1.8.3.js"></script> <script> function sendCode() { var email=$("#eml").val(); $.ajax({ type: "get", url: "/user/sendCode.action", data: {email:email}, dataType: "json", success: function (data) { alert("验证码已发送到你的邮箱"); $("#code2").val(data.code); }, error: function () { alert("系统繁忙，请稍后重试"); } }); } </script></head><body><h2>首页</h2><form action="/user/registerUser.action" enctype="multipart/form-data" method="post"> 上传图片：<input type="file" name="file" /><br> 用户邮箱：<input type="text" name="email" id="eml"/><br> 用户Miami：<input type="text" name="password"/><br> 用户余额：<input type="text" name="balance" /><br> <input type="button" value="获取验证码" onclick="sendCode()"/> <input type="submit" value="注册" /></form></body></html> 
