主要是看一下Springboot中发送邮件的方法,至于拦截Springboot全局异常之前的文章中有。
在Springboot中发送邮件非常简单。
pom.xml引入maven依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
在application.yml里设置发信人的账号、密码
spring:
mail:
host: smtp.qq.com
username: 27255XXXX@qq.com
password: njcvcbdkrofgbhie
properties:
mail:
smtp:
auth: true
starttls:
enable: true
required: true
这个username就是未来发信时的邮箱地址,password是授权码。
这里以普通qq邮箱为例,注意password不是qq密码,而是授权码。
在qq邮箱-设置-账户,找到图片中的地方,开启IMAP/SMTP服务,开启后才能在别的客户端使用该qq邮箱发邮件,然后生成授权码,填写到application.yml的password位置。
然后就可以使用该邮箱作为发件人了。
看一下发邮件的具体代码,参考http://blog.csdn.net/clementad/article/details/51833416
package com.tianyalei.testmail.service;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;
@Service
public class MailService {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
@Autowired
private JavaMailSender sender;
@Value("${spring.mail.username}")
private String from;
/**
* 发送纯文本的简单邮件
* @param to
* @param subject
* @param content
*/
public void sendSimpleMail(String to, String subject, String content){
SimpleMailMessage message = new SimpleMailMessage();
message.setFrom(from);
message.setTo(to);
message.setSubject(subject);
message.setText(content);
try {
sender.send(message);
logger.info("简单邮件已经发送。");
} catch (Exception e) {
logger.error("发送简单邮件时发生异常!", e);
}
}
/**
* 发送html格式的邮件
* @param to
* @param subject
* @param content
*/
public void sendHtmlMail(String to, String subject, String content){
MimeMessage message = sender.createMimeMessage();
try {
//true表示需要创建一个multipart message
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true);
sender.send(message);
logger.info("html邮件已经发送。");
} catch (MessagingException e) {
logger.error("发送html邮件时发生异常!", e);
}
}
/**
* 发送带附件的邮件
* @param to
* @param subject
* @param content
* @param filePath
*/
public void sendAttachmentsMail(String to, String subject, String content, String filePath){
MimeMessage message = sender.createMimeMessage();
try {
//true表示需要创建一个multipart message
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true);
FileSystemResource file = new FileSystemResource(new File(filePath));
String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
helper.addAttachment(fileName, file);
sender.send(message);
logger.info("带附件的邮件已经发送。");
} catch (MessagingException e) {
logger.error("发送带附件的邮件时发生异常!", e);
}
}
/**
* 发送嵌入静态资源(一般是图片)的邮件
* @param to
* @param subject
* @param content 邮件内容,需要包括一个静态资源的id,比如:<img src=\"cid:rscId01\" >
* @param rscPath 静态资源路径和文件名
* @param rscId 静态资源id
*/
public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId){
MimeMessage message = sender.createMimeMessage();
try {
//true表示需要创建一个multipart message
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setFrom(from);
helper.setTo(to);
helper.setSubject(subject);
helper.setText(content, true);
FileSystemResource res = new FileSystemResource(new File(rscPath));
helper.addInline(rscId, res);
sender.send(message);
logger.info("嵌入静态资源的邮件已经发送。");
} catch (MessagingException e) {
logger.error("发送嵌入静态资源的邮件时发生异常!", e);
}
}
}
然后就可以使用里面的方法发邮件了。
可以先写个简单的测试类,调用
mailService.sendSimpleMail("wuweifeng@XXX.com", "主题:简单邮件", "测试邮件内容");
填写个收信人的地址就OK了。然后就能收到邮件了。收信人可以有多个,通过SimpleMailMessage可以看到。
定义一个全局拦截类
package com.tianyalei.testmail.global;
import com.tianyalei.testmail.service.MailService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.request.WebRequest;
import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
import javax.servlet.http.HttpServletRequest;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Enumeration;
import static org.springframework.http.HttpStatus.NOT_EXTENDED;
/**
* Created by wuwf on 17/3/31.
* 全局异常处理
*/
@ControllerAdvice
public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
private Logger logger = LoggerFactory.getLogger(getClass().getName());
@Autowired
private MailService mailService;
/**
* 在controller里面内容执行之前,校验一些参数不匹配啊,Get post方法不对啊之类的
*/
@Override
protected ResponseEntity<Object> handleExceptionInternal(Exception ex, Object body, HttpHeaders headers, HttpStatus status, WebRequest request) {
System.out.println("错误");
return new ResponseEntity<>("出错了", NOT_EXTENDED);
}
@ExceptionHandler(value = Exception.class)
@ResponseBody
public String jsonHandler(HttpServletRequest request, Exception e) throws Exception {
log(e, request);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
//发送邮件
mailService.sendSimpleMail("wuweifeng@XXXX.com", "异常", sw.toString());
return "发生异常";
}
private void log(Exception ex, HttpServletRequest request) {
logger.error("************************异常开始*******************************");
logger.error("请求地址:" + request.getRequestURL());
Enumeration enumeration = request.getParameterNames();
logger.error("请求参数");
while (enumeration.hasMoreElements()) {
String name = enumeration.nextElement().toString();
logger.error(name + "---" + request.getParameter(name));
}
StackTraceElement[] error = ex.getStackTrace();
for (StackTraceElement stackTraceElement : error) {
logger.error(stackTraceElement.toString());
}
logger.error("************************异常结束*******************************");
}
}
当有异常时会进入被@ExceptionHandler标注的方法中,在该方法里做异常日志的记录和发邮件的逻辑。
手动触发个异常,看看结果
可以看到已经收到邮件了。