日志对于应用程序来说是非常重要的，当你的程序报错了，而你又不知道是多么可怕的一件事情，本文使用logback把程序报错信息邮件到开发者
目录结构
项目依赖配置
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.itunion</groupId>
<artifactId>spring-boot-log-mail</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring-boot-log-mail</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- 邮件 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
这里主要使用了spring boot 邮件的依赖 spring-boot-starter-mail , 确实好方便
日志邮件配置
mail-appender.xml
<?xml version="1.0" encoding="UTF-8"?>
<included>
<!--邮件设置-->
<property name="smtpHost" value="smtp.163.com"/>
<property name="smtpPort" value="25"/>
<property name="mailFrom" value="xxx@163.com"/>
<property name="username" value="xxx@163.com"/>
<property name="mailTo" value="xxx@163.com"/>
<property name="password" value="xxx"/>
<property name="SSL" value="false"/>
<property name="mailSubject" value="系统异常"/>
<appender name="MAIL" class="ch.qos.logback.classic.net.SMTPAppender">
<smtpHost>${smtpHost}</smtpHost>
<smtpPort>${smtpPort}</smtpPort>
<username>${username}</username>
<password>${password}</password>
<SSL>${SSL}</SSL>
<asynchronousSending>false</asynchronousSending>
<to>${mailTo}</to>
<from>${mailFrom}</from>
<subject>${mailSubject}</subject>
<layout class="ch.qos.logback.classic.html.HTMLLayout"/>
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>ERROR</level>
</filter>
</appender>
</included>
<property name="mailFrom" value="xxx@163.com"/>
<property name="username" value="xxx@163.com"/>
<property name="mailTo" value="xxx@163.com"/>
<property name="password" value="xxx"/>
这里需要把你自己的邮箱配置上去，并填上你的授权密码
邮箱记得打开 smtp 设置
邮箱记得打开 smtp 设置
邮箱记得打开 smtp 设置
Logback 配置
logback.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<!-- 默认的一些设置 -->
<include resource="org/springframework/boot/logging/logback/defaults.xml" />
<!-- 日志文件变量 -->
<property name="LOG_FILE" value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}}/spring.log}"/>
<!-- 控台配置 -->
<include resource="org/springframework/boot/logging/logback/console-appender.xml" />
<!-- 文件配置 -->
<include resource="org/springframework/boot/logging/logback/file-appender.xml" />
<!-- 邮件配置 -->
<include resource="mail-appender.xml" />
<root level="INFO">
<appender-ref ref="CONSOLE" />
<appender-ref ref="FILE" />
<appender-ref ref="MAIL"/>
</root>
</configuration>
这里导入邮件配置文件
日志文件配置
application.properties
logging.path=../logs
logging.file=../logs/file.log
logging.level.root=info
spring.http.encoding.charset=utf-8
模拟异常
AppController
package com.itunion.log.mail;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import java.util.Random;
@RequestMapping("/app")
@RestController
public class AppController {
private Logger logger = LoggerFactory.getLogger(AppController.class);
@RequestMapping
public String selectList() {
boolean flag = new Random().nextBoolean();
if (flag) {
throw new RuntimeException("查询报错");
} else {
return "正常返回 当前时间：" + System.currentTimeMillis();
}
}
@ExceptionHandler
@ResponseBody
public String exceptionHandler(Exception e) {
logger.error(e.getMessage(), e);
return e.getMessage();
}
}
这里模拟正式业务的异常触发，随机一个bool值，如果为真就抛出运行时异常
一般都会对异常统一处理，记得要使用 logger.error(e.getMessage(), e); 只是返回结果是不会发邮件的
启动并测试
访问 http://localhost:8080/app
要访问到页面显示"查询报错"
异常邮件截图
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Git源码地址：https://github.com/qiaohhgz/spring-boot-log-mail
作者：咖啡
注意：本文归作者所有，未经作者允许，不得转载
