有時(shí)候當(dāng)我們注冊完的時(shí)候系統(tǒng)會提示有一封郵件發(fā)送到了你的郵箱，如何做呢？
就要用到spring+velocity+javamail這3個(gè)玩意，其實(shí)只用了spring，因?yàn)槠渌?個(gè)都被spring集成了。
先看代碼
1
package com.worthtech.app.util;
2
3import java.io.File;
4import java.util.Map;
5
6import javax.mail.MessagingException;
7import javax.mail.internet.MimeMessage;
8
9import org.apache.velocity.app.VelocityEngine;
10import org.springframework.core.io.FileSystemResource;
11import org.springframework.mail.SimpleMailMessage;
12import org.springframework.mail.javamail.JavaMailSender;
13import org.springframework.mail.javamail.MimeMessageHelper;
14import org.springframework.ui.velocity.VelocityEngineUtils;
15
16
public class MailSenderService 
{
17
private JavaMailSender mailSender;//spring配置中定義
18 private VelocityEngine velocityEngine;//spring配置中定義
19 private SimpleMailMessage simpleMailMessage;//spring配置中定義
20 private String from;
21 private String to;
22 private String subject;
23 private String content;
24 private String templateName;
25 // 是否需要身份驗(yàn)證
26 private boolean validate = false;
27
28
29
public JavaMailSender getMailSender() {
30 return mailSender;
31
}
32 public void setMailSender(JavaMailSender mailSender) {
33 this.mailSender = mailSender;
34 }
35 public VelocityEngine getVelocityEngine() {
36 return velocityEngine;
37 }
38 public void setVelocityEngine(VelocityEngine velocityEngine) {
39 this.velocityEngine = velocityEngine;
40 }
41 /** *//**
42 * 發(fā)送模板郵件
43 *
44 */
45 public void sendWithTemplate(Map model){
46 mailSender = this.getMailSender();
47 simpleMailMessage.setTo(this.getTo()); //接收人
48 simpleMailMessage.setFrom(simpleMailMessage.getFrom()); //發(fā)送人,從配置文件中取得
49 simpleMailMessage.setSubject(this.getSubject());
50 String result = null;
51 try {
52 result = VelocityEngineUtils.mergeTemplateIntoString(this.getVelocityEngine(), this.getTemplateName(), "UTF-8",model);
53 } catch (Exception e) {}
54 simpleMailMessage.setText(result);
55 mailSender.send(simpleMailMessage);
56 }
57 /** *//**
58 * 發(fā)送普通文本郵件
59 *
60 */
61 public void sendText(){
62 mailSender = this.getMailSender();
63 simpleMailMessage.setTo(this.getTo()); //接收人
64 simpleMailMessage.setFrom(simpleMailMessage.getFrom()); //發(fā)送人,從配置文件中取得
65 simpleMailMessage.setSubject(this.getSubject());
66 simpleMailMessage.setText(this.getContent());
67 mailSender.send(simpleMailMessage);
68 }
69 /** *//**
70 * 發(fā)送普通Html郵件
71 *
72 */
73 public void sendHtml(){
74 mailSender = this.getMailSender();
75 MimeMessage mimeMessage = mailSender.createMimeMessage();
76 MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage);
77 try {
78 messageHelper.setTo(this.getTo());
79 messageHelper.setFrom(simpleMailMessage.getFrom());
80 messageHelper.setSubject(this.getSubject());
81 messageHelper.setText(this.getContent(),true);
82 } catch (MessagingException e) {
83 // TODO Auto-generated catch block
84 e.printStackTrace();
85 }
86 mailSender.send(mimeMessage);
87 }
88 /** *//**
89 * 發(fā)送普通帶一張圖片的Html郵件
90 *
91 */
92 public void sendHtmlWithImage(String imagePath){
93 mailSender = this.getMailSender();
94 MimeMessage mimeMessage = mailSender.createMimeMessage();
95 try {
96 MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage,true);
97 messageHelper.setTo(this.getTo());
98 messageHelper.setFrom(simpleMailMessage.getFrom());
99 messageHelper.setSubject(this.getSubject());
100 messageHelper.setText(this.getContent(),true);
101// Content="<html><head></head><body><img src=\"cid:image\"/></body></html>";
102 //圖片必須這樣子：<img src='cid:image'/>
103 FileSystemResource img = new FileSystemResource(new File(imagePath));
104 messageHelper.addInline("image",img);
105 } catch (MessagingException e) {
106 // TODO Auto-generated catch block
107 e.printStackTrace();
108 }
109 mailSender.send(mimeMessage);
110 }
111 /** *//**
112 * 發(fā)送普通帶附件的Html郵件
113 *
114 */
115 public void sendHtmlWithAttachment(String filePath){
116 mailSender = this.getMailSender();
117 MimeMessage mimeMessage = mailSender.createMimeMessage();
118 try {
119 MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage,true);
120 messageHelper.setTo(this.getTo());
121 messageHelper.setFrom(simpleMailMessage.getFrom());
122 messageHelper.setSubject(this.getSubject());
123 messageHelper.setText(this.getContent(),true);
124 FileSystemResource file = new FileSystemResource(new File(filePath));
125// System.out.println("file.getFilename==="+file.getFilename());
126 messageHelper.addAttachment(file.getFilename(),file);
127 } catch (MessagingException e) {
128 // TODO Auto-generated catch block
129 e.printStackTrace();
130 }
131 mailSender.send(mimeMessage);
132 }
133 public String getFrom() {
134 return from;
135 }
136 public void setFrom(String from) {
137 this.from = from;
138 }
139 public String getSubject() {
140 return subject;
141 }
142 public void setSubject(String subject) {
143 this.subject = subject;
144 }
145 public String getTo() {
146 return to;
147 }
148 public void setTo(String to) {
149 this.to = to;
150 }
151 public String getTemplateName() {
152 return templateName;
153 }
154 public void setTemplateName(String templateName) {
155 this.templateName = templateName;
156 }
157 public String getContent() {
158 return content;
159 }
160 public void setContent(String content) {
161 this.content = content;
162 }
163 public boolean isValidate() {
164 return validate;
165 }
166 public void setValidate(boolean validate) {
167 this.validate = validate;
168 }
169 public SimpleMailMessage getSimpleMailMessage() {
170 return simpleMailMessage;
171 }
172 public void setSimpleMailMessage(SimpleMailMessage simpleMailMessage) {
173 this.simpleMailMessage = simpleMailMessage;
174 }
175
} 上面這個(gè)類實(shí)際上是個(gè)發(fā)送郵件的工具類，我們只要設(shè)置好參數(shù)后調(diào)用想要的sendXXX()就可以了。如下：
1//注冊完馬上發(fā)送郵件
2MailSenderService mailSender=this.getMailsenderService();
3mailSender.setTo(form.getEmail());
4mailSender.setSubject("來自worthtech的郵件");
5mailSender.setTemplateName("mail.vm");//設(shè)置的郵件模板
6Map model=new HashMap();
7model.put("username", form.getUserName());
8String url=request.getRequestURL().toString();
9url=url.substring(0, url.lastIndexOf("/"));
10model.put("url", url);
11model.put("email", "gjni@worthtech.net");
12mailSender.sendWithTemplate(model);
13System.out.println("郵件發(fā)送成功！"); 下面的是spring配置
1<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
2 <property name="host" value="${mail.host}"/>
3 <property name="username" value="${mail.username}"/>
4 <property name="password" value="${mail.password}"/>
5 <property name="defaultEncoding" value="UTF-8"></property>
6 <property name="javaMailProperties">
7 <props>
8 <prop key="mail.smtp.auth">${mail.smtp.auth}</prop>
9 <prop key="mail.smtp.timeout">${mail.smtp.timeout}</prop>
10 <!--
11 <prop key="mail.smtp.starttls.enable">true</prop>
12 <prop key="mail.smtp.socketFactory.class">javax.net.ssl.SSLSocketFactory</prop>
13 <prop key="mail.smtp.socketFactory.fallback">false</prop>
14 -->
15 </props>
16 </property>
17 </bean>
18 <bean id="simpleMailMessage" class="org.springframework.mail.SimpleMailMessage" singleton="false">
19 <property name="from">
20 <value>${mail.default.from}</value>
21 </property>
22 </bean>
23 <bean id="velocityEngine" class="org.springframework.ui.velocity.VelocityEngineFactoryBean">
24 <property name="velocityProperties">
25 <props>
26 <prop key="resource.loader">class</prop>
27 <prop key="class.resource.loader.class">
28 org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader
29 </prop>
30 <prop key="velocimacro.library"></prop>
31 </props>
32 </property>
33 </bean>
34 <bean id="mailsenderService" class="com.worthtech.app.util.MailSenderService">
35 <property name="mailSender" ref="mailSender" />
36 <property name="simpleMailMessage" ref="simpleMailMessage" />
37 <property name="velocityEngine" ref="velocityEngine" />
38 </bean> mail.vm內(nèi)容如下：
1親愛的${username}
2
3歡迎加入worthtech!
4
5當(dāng)您收到這封信的時(shí)候，您已經(jīng)可以正常登錄了。
6請點(diǎn)擊鏈接登錄首頁:${url}
7如果您的email程序不支持鏈接點(diǎn)擊，請將上面的地址拷貝至您的瀏覽器(如IE)的地址欄進(jìn)入。
8
9如果您還想申請管理員權(quán)限，可以聯(lián)系管理員${email}
10
11我們對您產(chǎn)生的不便，深表歉意。
12
13希望您在worthtech度過快樂的時(shí)光!
14
15-----------------------
16
17(這是一封自動(dòng)產(chǎn)生的email，請勿回復(fù)。) mail.properties如下：
1mail.host=218.000.000.234
2mail.port=25
3mail.username=gjni@worthtech.net
4mail.password=xxxxxxxx
5mail.smtp.auth=true
6mail.smtp.timeout=25000
7mail.default.from=gjni@worthtech.net