SpringBoot Logback日志記錄到數(shù)據(jù)庫的實(shí)現(xiàn)方法

更新時間：2019年11月12日 14:38:37 作者：拉提娜的爸爸

這篇文章主要介紹了SpringBoot Logback日志記錄到數(shù)據(jù)庫的實(shí)現(xiàn)方法，文中通過示例代碼介紹的非常詳細(xì)，對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值，需要的朋友們下面隨著小編來一起學(xué)習(xí)學(xué)習(xí)吧

對于日志的處理，有時候需要把符合條件的日志計入數(shù)據(jù)庫中

一、添加pom依賴

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!-- 這個依賴必須存在，否則會報java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource-->
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.4</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <scope>runtime</scope>
    </dependency>

二、創(chuàng)建logback配置文件

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="false">
  <!--定義日志文件的存儲地址 勿在 LogBack 的配置中使用相對路徑-->
  <property name="LOG_HOME" value="/home/admin" />

  <!-- 控制臺輸出 -->
  <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
    <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
      <!--格式化輸出：%d表示日期，%thread表示線程名，%-5level：級別從左顯示5個字符寬度%msg：日志消息，%n是換行符-->
      <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 -->
  <appender name="application_file" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
      <!--日志文件輸出的文件名-->
      <FileNamePattern>${LOG_HOME}/info/info.log.%d{yyyy-MM-dd}.log</FileNamePattern>
      <!--日志文件保留天數(shù)-->
      <MaxHistory>30</MaxHistory>
    </rollingPolicy>
    <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
      <!--格式化輸出：%d表示日期，%thread表示線程名，%-5level：級別從左顯示5個字符寬度%msg：日志消息，%n是換行符-->
      <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
    </encoder>
    <!--日志文件最大的大小-->
    <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
      <MaxFileSize>500MB</MaxFileSize>
    </triggeringPolicy>
  </appender>

  <!-- 異常日志文件 -->
  <appender name="error_file" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
      <!--日志文件輸出的文件名-->
      <FileNamePattern>${LOG_HOME}/error/error.log.%d{yyyy-MM-dd}.log</FileNamePattern>
      <!--日志文件保留天數(shù)-->
      <MaxHistory>30</MaxHistory>
    </rollingPolicy>
    <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
      <!--格式化輸出：%d表示日期，%thread表示線程名，%-5level：級別從左顯示5個字符寬度%msg：日志消息，%n是換行符-->
      <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
    </encoder>
    <!--日志文件最大的大小-->
    <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
      <MaxFileSize>500MB</MaxFileSize>
    </triggeringPolicy>
    <!-- 只打印錯誤日志 -->
    <filter class="ch.qos.logback.classic.filter.LevelFilter">
      <level>error</level>
      <onMatch>ACCEPT</onMatch>
      <onMismatch>DENY</onMismatch>
    </filter>
  </appender>

  <!--連接數(shù)據(jù)庫配置-->
  <appender name="db_classic_mysql_pool" class="ch.qos.logback.classic.db.DBAppender">
    <connectionSource class="ch.qos.logback.core.db.DataSourceConnectionSource">
      <dataSource class="org.apache.commons.dbcp.BasicDataSource">
        <driverClassName>com.mysql.cj.jdbc.Driver</driverClassName>
        <url>jdbc:mysql://127.0.0.1:3306/logdb?serverTimezone=Asia/Shanghai</url>
        <username>root</username>
        <password>123456</password>
      </dataSource>
    </connectionSource>
  </appender>

  <!--myibatis log configure-->
  <logger name="com.apache.ibatis" level="TRACE"/>
  <logger name="java.sql.Connection" level="DEBUG" />
  <logger name="java.sql.Statement" level="DEBUG"/>
  <logger name="java.sql.PreparedStatement" level="DEBUG"/>

  <!-- 日志輸出級別 -->
  <root level="INFO">
    <appender-ref ref="stdout" />
    <appender-ref ref="application_file" />
    <appender-ref ref="error_file"/>
    <appender-ref ref="db_classic_mysql_pool" />
  </root>

</configuration>

三、創(chuàng)建數(shù)據(jù)庫表

在ch.qos.logback.classic.db包下可以找到對應(yīng)數(shù)據(jù)庫的表創(chuàng)建語句

我用的mysql數(shù)據(jù)庫，前提是要首先自己創(chuàng)建庫

mysql的數(shù)據(jù)庫sql語句:

BEGIN;
DROP TABLE IF EXISTS logging_event_property;
DROP TABLE IF EXISTS logging_event_exception;
DROP TABLE IF EXISTS logging_event;
COMMIT;


BEGIN;
CREATE TABLE logging_event 
 (
  timestmp     BIGINT NOT NULL,
  formatted_message TEXT NOT NULL,
  logger_name    VARCHAR(254) NOT NULL,
  level_string   VARCHAR(254) NOT NULL,
  thread_name    VARCHAR(254),
  reference_flag  SMALLINT,
  arg0       VARCHAR(254),
  arg1       VARCHAR(254),
  arg2       VARCHAR(254),
  arg3       VARCHAR(254),
  caller_filename  VARCHAR(254) NOT NULL,
  caller_class   VARCHAR(254) NOT NULL,
  caller_method   VARCHAR(254) NOT NULL,
  caller_line    CHAR(4) NOT NULL,
  event_id     BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY
 );
COMMIT;

BEGIN;
CREATE TABLE logging_event_property
 (
  event_id     BIGINT NOT NULL,
  mapped_key    VARCHAR(254) NOT NULL,
  mapped_value   TEXT,
  PRIMARY KEY(event_id, mapped_key),
  FOREIGN KEY (event_id) REFERENCES logging_event(event_id)
 );
COMMIT;

BEGIN;
CREATE TABLE logging_event_exception
 (
  event_id     BIGINT NOT NULL,
  i        SMALLINT NOT NULL,
  trace_line    VARCHAR(254) NOT NULL,
  PRIMARY KEY(event_id, i),
  FOREIGN KEY (event_id) REFERENCES logging_event(event_id)
 );
COMMIT;

創(chuàng)建好的表

四、測試

1、編寫測試代碼

@RunWith(SpringRunner.class)
@SpringBootTest
public class Springboot02MybatisApplicationTests {

  private final Logger logger = LoggerFactory.getLogger(Springboot02MybatisApplicationTests.class);
  @Test
  public void contextLoads() {
    logger.info("數(shù)據(jù)庫日志info");
    logger.error("數(shù)據(jù)庫日志error");
  }
}

2、運(yùn)行結(jié)果

默認(rèn)存儲所有符合當(dāng)前級別的日志記錄

五、自定義數(shù)據(jù)庫表字段和存儲內(nèi)容

當(dāng)然，默認(rèn)的表字段那么多，存儲了很多內(nèi)容，但是我們很多時候只是自己打印的日志內(nèi)容，為了節(jié)省磁盤空間，這個時候可以自定義存儲字段和存儲內(nèi)容

步驟：

1、創(chuàng)建數(shù)據(jù)庫表

DROP TABLE IF EXISTS `logging`;
CREATE TABLE `logging` (
 `id` BIGINT(20) NOT NULL AUTO_INCREMENT,
 `message` VARCHAR(300) NOT NULL COMMENT '內(nèi)容',
 `level_string` VARCHAR(254) NOT NULL COMMENT '級別',
 `created_time` DATETIME NOT NULL COMMENT '時間',
 `logger_name` VARCHAR(300) NOT NULL COMMENT '全類名',
 PRIMARY KEY (`id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COMMENT='自定義日志記錄表'

2、重寫DBAppender類為LogDBAppender類

package com.me.study.springboot02mybatis.config;

import ch.qos.logback.classic.spi.CallerData;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.db.DBAppenderBase;
import org.springframework.context.annotation.Configuration;

import java.lang.reflect.Method;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Timestamp;

@Configuration
public class LogDBAppender extends DBAppenderBase<ILoggingEvent> {

  protected static final Method GET_GENERATED_KEYS_METHOD;
  //插入sql
  protected String insertSQL;
  // message 日志內(nèi)容
  static final int MESSAGE = 1;
  // level_string
  static final int LEVEL_STRING = 2;
  // created_time 時間
  static final int CREATE_TIME = 3;
  // logger_name 全類名
  static final int LOGGER_NAME = 4;

  static final StackTraceElement EMPTY_CALLER_DATA = CallerData.naInstance();

  static {
    // PreparedStatement.getGeneratedKeys() method was added in JDK 1.4
    Method getGeneratedKeysMethod;
    try {
      // the
      getGeneratedKeysMethod = PreparedStatement.class.getMethod("getGeneratedKeys", (Class[]) null);
    } catch (Exception ex) {
      getGeneratedKeysMethod = null;
    }
    GET_GENERATED_KEYS_METHOD = getGeneratedKeysMethod;
  }

  @Override
  public void start() {
    // 將寫好的sql語句賦值給insertSQL
    insertSQL = buildInsertSQL();
    super.start();
  }

  // 自己寫新增sql語句
  private static String buildInsertSQL() {
    return "INSERT INTO `logging`(`message`,`level_string`,`created_time`,`logger_name`)" +
        "VALUES (?,?,?,?)";
  }

  @Override
  protected Method getGeneratedKeysMethod() {
    return GET_GENERATED_KEYS_METHOD;
  }

  @Override
  protected String getInsertSQL() {
    return insertSQL;
  }

  /**
   * 主要修改的方法
   *
   * @param stmt
   * @param event
   * @throws SQLException
   */
  private void bindLoggingEventWithInsertStatement(PreparedStatement stmt, ILoggingEvent event) throws SQLException {
    // event.getFormattedMessage() 日志打印內(nèi)容
    String message = event.getFormattedMessage();
    // 如果只想存儲自己打印的日志，可以這樣寫日志：logger.info("- XXXX")
    if(message.startsWith("-")){ // 判斷日志消息首字母為 - 的日志，記錄到數(shù)據(jù)庫表
      stmt.setString(MESSAGE, message);
      // event.getLevel().toString() 日志級別
      stmt.setString(LEVEL_STRING, event.getLevel().toString());
      // new Timestamp(event.getTimeStamp()) 時間
      stmt.setTimestamp(CREATE_TIME, new Timestamp(event.getTimeStamp()));
      // event.getLoggerName() 全類名
      stmt.setString(LOGGER_NAME, event.getLoggerName());
    }

  }

  @Override
  protected void subAppend(ILoggingEvent eventObject, Connection connection, PreparedStatement statement) throws Throwable {
    bindLoggingEventWithInsertStatement(statement, eventObject);
    // This is expensive... should we do it every time?
    int updateCount = statement.executeUpdate();
    if (updateCount != 1) {
      addWarn("Failed to insert loggingEvent");
    }
  }

  @Override
  protected void secondarySubAppend(ILoggingEvent eventObject, Connection connection, long eventId) throws Throwable {
  }
}

3、修改logback日志文件，引用自定義的LogDBAppender類

  <!--連接數(shù)據(jù)庫配置-->
  <appender name="db_classic_mysql_pool" class="com.me.study.springboot02mybatis.config.LogDBAppender">
    <connectionSource class="ch.qos.logback.core.db.DataSourceConnectionSource">
      <dataSource class="org.apache.commons.dbcp.BasicDataSource">
        <driverClassName>com.mysql.cj.jdbc.Driver</driverClassName>
        <url>jdbc:mysql://127.0.0.1:3306/logdb?serverTimezone=Asia/Shanghai</url>
        <username>root</username>
        <password>admin</password>
      </dataSource>
    </connectionSource>
  </appender>

4、測試運(yùn)行

1）編寫測試代碼

  @Test
  public void contextLoads() {
    logger.info("- 數(shù)據(jù)庫日志info");
    logger.error("- 數(shù)據(jù)庫日志error");
    logger.info("一條不帶‘-'的日志，看會不會記錄如數(shù)據(jù)庫");
  }

2)運(yùn)行結(jié)果