Java实现邮件发送
在日常工作中，通过邮件或短信做报警或者信息推送的场景还是挺多的，而java中，常用的就是JavaMail来做这个事情了，到网上搜索了一把，发现apache有个commons email 的开源包，现在借助它来尝鲜一把
简单使用
添加pom依赖:
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<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-email</artifactId>
<version>1.4</version>
</dependency>
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查看使用帮助: http://commons.apache.org/proper/commons-email/userguide.html
1. 简单使用case
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| @Test
public void testEmailSend() {
try {
Email email = new SimpleEmail();
email.setHostName("smtp.163.com");
email.setSmtpPort(25);
email.setAuthenticator(new DefaultAuthenticator("userName", "accessToken"));
email.setSSLOnConnect(true);
email.setFrom("xhhuiblog@163.com");
email.setCharset("utf-8");
email.addTo("bangzewu@126.com");
email.setSubject("邮件标题");
email.setMsg("邮件内容");
String ans = email.send();
System.out.println(ans);
} catch (Exception e) {
e.printStackTrace();
}
}
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从实际的使用来看，还是比较简单的，设置一些必要的参数（host，端口，认证信息，fromEmail, toEmail, title, content）
额外需要注意的一点是，为了中文正常显示，请指定charset
2. html使用姿势
更加常见的邮件发送是带有格式的，且有可能有附件，所以我们通常用的更多的是下面的方式
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| private String template = "<html><meta charset=utf-8>\n" +
"\n" +
"<style>\n" +
"div.card {\n" +
" background-color:white; \n" +
" box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);\n" +
" text-align: center;\n" +
"}\n" +
"\n" +
"div.header {\n" +
" background-color: #4CAF50;\n" +
" box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);\n" +
" color: white;\n" +
" padding: 10px;\n" +
" font-size: 40px;\n" +
"}\n" +
"\n" +
"div.container {\n" +
" padding: 10px;\n" +
"}\n" +
"</style>\n" +
"\n" +
"<div class=\"card\">\n" +
" <div class=\"header\">\n" +
" <h1>星期一</h1>\n" +
" </div>\n" +
"\n" +
" <div class=\"container\">\n" +
" <p>2016.04.10</p>\n" +
" </div>\n" +
"</div>\n" +
"</html>";
@Test
public void testHtmlEmailSend() {
try {
EmailAttachment attachment = new EmailAttachment();
attachment.setURL(new URL("http://s11.mogucdn.com/mlcdn/c45406/180410_256l2egkgj3lfdkjkbf41b1i09l3f_1280x1280.jpg"));
attachment.setDisposition(EmailAttachment.ATTACHMENT);
attachment.setDescription("公众号");
attachment.setName("logo.jpg");
HtmlEmail email = new HtmlEmail();
email.setCharset("UTF-8");
email.setHostName("smtp.163.com");
email.setSmtpPort(25);
email.setAuthenticator(new DefaultAuthenticator("username", "token"));
email.setSSLOnConnect(true);
email.setFrom("xhhuiblog@163.com");
email.setSubject("TestMail");
email.attach(attachment);
email.setHtmlMsg(template);
email.setTextMsg("Your email client does not support HTML messages");
email.addTo("bangzewu@126.com");
String ans = email.send();
System.out.println(ans);
} catch (Exception e) {
e.printStackTrace();
}
}
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邮件结果如下:
II. 其他
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