SpringBoot项目中日志写入数据库，最主要的核心类就是DBAppender。

我使用的MySQL数据库，创建auge_log数据库，执行以下内容建表。

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;

然后在pom中添加的dbcp的依赖

commons-dbcp

commons-dbcp

之后在logback.xml中添加写入数据库的配置信息(这里设置了写入数据库的日志级别为error，root日志级别为INFO)

com.mysql.jdbc.Driver

jdbc:mysql://localhost:3306/auge_log?characterEncoding=UTF-8

root

123456

error

ACCEPT

DENY

示例：

Logger logger = LoggerFactory.getLogger(UserController.class);

@RequestMapping("/login")

@LogApi(info = "用户登陆")

public String login(String loginName, String password, Model model){

User user = userService.getUserByLogin(loginName,password);

if(user==null){

//在此试验是否写入数据库

logger.error("用户名或密码错误，请重新登录");

model.addAttribute("emg","用户名或密码错误，请重新登录");

return "login";

}

logger.info("测试info级别是否也能写入数据库");

session.setAttribute("user",user);

return "index";

}

查看数据库记录如下：

说明配置成功了(只有error才会写入数据库)