maven依赖
<dependency> <groupId>net.logstash.logback</groupId> <artifactId>logstash-logback-encoder</artifactId> <version>5.1</version></dependency>
springboot 配置文件
logging: config: classpath:logback.xml
logback.xml
<?xml version="1.0" encoding="UTF-8"?><configuration><include resource="org/springframework/boot/logging/logback/base.xml" /><!--======================================= 本地变量 ======================================== --><!--在没有定义${LOG_HOME}系统变量的时候，可以设置此本地变量。提交测试、上线时，要将其注释掉，使用系统变量。 --><property name="LOG_HOME" value="logs/spring.log" /><!-- 应用名称：和统一配置中的项目代码保持一致（小写） --><property name="APP_NAME" value="log" /><!--日志文件保留天数 --><property name="LOG_MAX_HISTORY" value="30" /><!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径 --><!--应用日志文件保存路径 --><property name="LOG_APP_HOME" value="${APP_NAME}/%d{yyyy-MM-dd}" /><!--=========================== 按照每天生成日志文件：默认配置=================================== --><!-- 控制台输出 --><appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"><encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符 --><pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern></encoder></appender><!-- 按照每天生成日志文件：主项目日志 --><appender name="APP"class="ch.qos.logback.core.rolling.RollingFileAppender"><rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><!--日志文件输出的文件名 --><FileNamePattern>${LOG_APP_HOME}/base.%d{yyyy-MM-dd}.log</FileNamePattern><!--日志文件保留天数 --><MaxHistory>${LOG_MAX_HISTORY}</MaxHistory></rollingPolicy><encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符 --><pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{500} - %msg%n</pattern></encoder></appender><!--=============================== 日志输出: 默认主业务日志 ====================================== --><logger name="org.springframework"><level value="WARN" /></logger><logger name="org.apache.shiro"><level value="WARN" /></logger><logger name="freemarker"><level value="WARN" /></logger><logger name="org.hibernate"><level value="WARN" /></logger><logger name="org.hibernate.SQL"><level value="DEBUG" /></logger><logger name="org.apache.ibatis"><level value="DEBUG" /></logger><logger name="org.mybatis.spring"><level value="DEBUG" /></logger><logger name="com.alibaba.druid"><level value="DEBUG,INFO" /></logger> <!-- 这里是你的业务的包名 --> <logger name="com.bart.elk"><level value="DEBUG" /></logger><!-- logstash ip和暴露的端口，我目前理解就是通过这个地址把日志发送过去 --><appender name="LOGSTASH" class="net.logstash.logback.appender.LogstashTcpSocketAppender"><!-- 和logstash 的input 配置的端口保持一致 --> <destination>localhost:4567</destination> <encoder charset="UTF-8" class="net.logstash.logback.encoder.LogstashEncoder" /> </appender><root level="warn,info,debug"><appender-ref ref="APP" /><appender-ref ref="STDOUT" /><appender-ref ref="LOGSTASH" /> <appender-ref ref="CONSOLE" /></root></configuration>
logstash
springboot-log.conf
# 文档 # https://www.elastic.co/guide/en/logstash/5.6/input-plugins.html# https://www.elastic.co/guide/en/logstash/6.1/input-plugins.htmlinput{tcp { mode => "server" host => "0.0.0.0" port => 4567 codec => json_lines}}output{ # 为了模拟测试就先不放es了，在控制台输出测试看看#elasticsearch{# hosts=>["127.0.0.1:9200"]# index => "springboot-elk-%{+YYYY.MM.dd}" #}stdout{codec => rubydebug}}
测试接口
import java.time.LocalDateTime;import java.time.format.DateTimeFormatter;import javax.servlet.http.HttpServletRequest;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RestController;import org.springframework.web.context.request.RequestContextHolder;import org.springframework.web.context.request.ServletRequestAttributes;@RestControllerpublic class ApiTests {protected final static Logger log = LoggerFactory.getLogger(ApiTests.class);@GetMapping("/api/log")public Object log() {ServletRequestAttributes requestAttributes = (ServletRequestAttributes)RequestContextHolder.getRequestAttributes();HttpServletRequest request = requestAttributes.getRequest();String ip = request.getRemoteAddr();String uri = request.getRequestURI();String logStr = String.format("IP=[%s] send request URI = [%s]", ip, uri);log.debug("[debug] "+logStr);log.info("[info] "+logStr);log.warn("[warn] "+logStr);log.error("[error] "+logStr);return "ok : "+ LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));}}
测试效果
先运行logstash
# linux: bin/logstash -f config/springboot-log.conf# windows: bin\logstash.bat -f config/springboot-log.conf
在运行springboot项目，然后调用测试接口：http://localhost:8080/api/log
观察logstash控制台输出：
{ "@timestamp" => 2021-04-28T15:40:43.182Z, "level" => "DEBUG", "port" => 57778, "thread_name" => "http-nio-8080-exec-1", "level_value" => 10000, "@version" => "1", "host" => "127.0.0.1", "logger_name" => "com.bart.elk.ApiTests", "message" => "[debug] IP=[127.0.0.1] send request URI = [/api/log]"}{ "@timestamp" => 2021-04-28T15:40:43.182Z, "level" => "INFO", "port" => 57778, "thread_name" => "http-nio-8080-exec-1", "level_value" => 20000, "@version" => "1", "host" => "127.0.0.1", "logger_name" => "com.bart.elk.ApiTests", "message" => "[info] IP=[127.0.0.1] send request URI = [/api/log]"}{ "@timestamp" => 2021-04-28T15:40:43.183Z, "level" => "WARN", "port" => 57778, "thread_name" => "http-nio-8080-exec-1", "level_value" => 30000, "@version" => "1", "host" => "127.0.0.1", "logger_name" => "com.bart.elk.ApiTests", "message" => "[warn] IP=[127.0.0.1] send request URI = [/api/log]"}{ "@timestamp" => 2021-04-28T15:40:43.183Z, "level" => "ERROR", "port" => 57778, "thread_name" => "http-nio-8080-exec-1", "level_value" => 40000, "@version" => "1", "host" => "127.0.0.1", "logger_name" => "com.bart.elk.ApiTests", "message" => "[error] IP=[127.0.0.1] send request URI = [/api/log]"}
说明运行成功！
参考说明：
logstash-logback-encoder
参考博客-1
参考博客-2
logstash 文档
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