1. Introduce related dependencies
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- 包含 mvc,aop 等jar资源 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<!-- 切换log4j2日志读取 -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- 配置 log4j2 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<!-- 加上这个才能辨认到log4j2.yml文件 -->
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-yaml</artifactId>
</dependency>
Note
Be sure to pay attention to the original dependencies in the project, there may be conflicts, because the use of dependencies must exclude the related dependencies log4j2in the original project . I have been reporting errors here, but in the end I don't know where I went wrong. .log4jlogback
If the error is reported all the time, the following code is shown. Just in maventhe box on the right, click the item cleanagain install.
2. Configure the corresponding log4j2.yml and application.yml files
log4j2.yml
# 共有8个级别，按照从低到高为：ALL < TRACE < DEBUG < INFO < WARN < ERROR < FATAL < OFF。
# intLevel值依次为0,100,200,300,400,500,600,700
# intLevel 值越小，级别越高
Configuration:
#日志框架本身的输出日志级别
status: WARN
#自动加载配置文件的间隔时间，不低于5秒
monitorInterval: 5
Properties: # 定义全局变量
Property: # 缺省配置（用于开发环境）。其他环境需要在VM参数中指定，如下：
#测试：-Dlog.level.console=warn -Dlog.level.xjj=trace
#生产：-Dlog.level.console=warn -Dlog.level.xjj=info
- name: log.level.console
value: info
- name: log.path
value: ./${
project.name}_log
- name: project.name
value: daily
- name: log.pattern
value: "%d{yyyy-MM-dd HH:mm:ss.SSS} -%5p ${PID:-} [%15.15t] %-30.30C{1.} : %m%n"
Appenders:
Console: #输出到控制台
name: CONSOLE
target: SYSTEM_OUT
PatternLayout: #日志消息格式
pattern: ${
log.pattern}
# 启动日志
RollingFile:
- name: ROLLING_FILE
fileName: ${
log.path}/daily/${
project.name}.log #输出文件的地址
filePattern: "${log.path}/daily/$${date:yyyy-MM-dd}/${project.name}-%d{yyyy-MM-dd}-%i.log.gz" #文件生成规则
PatternLayout:
pattern: ${
log.pattern}
Filters:
# 一定要先去除不接受的日志级别，然后获取需要接受的日志级别
ThresholdFilter: # 日志级别过滤器
- level: error # 日志级别
onMatch: DENY # 高于的拒绝
onMismatch: NEUTRAL # 低于的
- level: info
onMatch: ACCEPT
onMismatch: DENY
Policies:
SizeBasedTriggeringPolicy: # 日志拆分规则
size: "10MB"
TimeBasedTriggeringPolicy: # 按天分类
modulate: true
interval: 1
DefaultRolloverStrategy: # 单目录下，文件最多20个，超过会删除最早之前的
max: 20
# 错误日志
- name: EXCEPTION_ROLLING_FILE
ignoreExceptions: false
fileName: ${
log.path}/exception/${
project.name}_exception.log
filePattern: "${log.path}/exception/$${date:yyyy-MM-dd}/${project.name}-%d{yyyy-MM-dd}-%i.log.gz"
ThresholdFilter:
level: error
#onMatch="ACCEPT" 匹配该级别及以上
#onMatch="DENY" 不匹配该级别及以上
#onMismatch="ACCEPT" 表示匹配该级别以下的级别
#onMismatch="DENY" 不表示匹配该级别以下的级别
onMatch: ACCEPT
onMismatch: DENY
PatternLayout:
pattern: ${
log.pattern}
Policies:
SizeBasedTriggeringPolicy: # 日志拆分规则
size: "10MB"
TimeBasedTriggeringPolicy: # 按天分类
modulate: true
interval: 1
DefaultRolloverStrategy: # 文件最多100个
max: 100
# 警告日志
- name: WARN_ROLLING_FILE
ignoreExceptions: false
fileName: ${
log.path}/warn/${
project.name}_warn.log
filePattern: "${log.path}/warn/$${date:yyyy-MM-dd-dd}/${project.name}-%d{yyyy-MM-dd}-%i.log.gz"
ThresholdFilter:
level: warn
#onMatch="ACCEPT" 匹配该级别及以上
#onMatch="DENY" 不匹配该级别及以上
#onMismatch="ACCEPT" 表示匹配该级别以下的级别
#onMismatch="DENY" 不表示匹配该级别以下的级别
onMatch: ACCEPT
onMismatch: DENY
PatternLayout:
pattern: ${
log.pattern}
Policies:
SizeBasedTriggeringPolicy: # 日志拆分规则
size: "10MB"
TimeBasedTriggeringPolicy: # 按天分类
modulate: true
interval: 1
DefaultRolloverStrategy: # 文件最多100个
max: 20
# 用户行为日志
- name: ROLLING_FILE_USER
fileName: ${
log.path}/user/user-${
project.name}.log
filePattern: "${log.path}/user/$${date:yyyy-MM-dd}/user-${project.name}-%d{yyyy-MM-dd}-%i.log.gz"
PatternLayout:
pattern: ${
log.pattern}
Filters:
# 一定要先去除不接受的日志级别，然后获取需要接受的日志级别
ThresholdFilter:
- level: error
onMatch: DENY
onMismatch: NEUTRAL
#onMismatch:NEUTRAL 交给下一个filter处理
- level: info
onMatch: ACCEPT
onMismatch: DENY
Policies:
SizeBasedTriggeringPolicy: # 日志拆分规则
size: "10MB"
TimeBasedTriggeringPolicy: # 按天分类
modulate: true
interval: 1
DefaultRolloverStrategy: # 文件最多100个
max: 100
Loggers:
Root:
# 共有8个级别，按照从低到高为：ALL < TRACE < DEBUG < INFO < WARN < ERROR < FATAL < OFF 选择all则输出全部的日志
level: info
AppenderRef:
- ref: CONSOLE
- ref: ROLLING_FILE
- ref: EXCEPTION_ROLLING_FILE
- ref: WARN_ROLLING_FILE
Logger:
- name: exception
level: debug
additivity: true #追加
AppenderRef:
- ref: EXCEPTION_ROLLING_FILE
#监听具体包下面的日志
# Logger: # 为com.xjj包配置特殊的Log级别，方便调试
- name: com.example.aspect
additivity: false
level: info
AppenderRef:
- ref: CONSOLE
- ref: ROLLING_FILE_USER
I put all the configuration information I know so far.
application.yml
Indicate the location of log4j2.yml (note that the relevant configuration of the built-in log in the original springboot file is cleared)
logging:
config: classpath:log4j2.yml
3. Write the corresponding test interface
import com.example.domain.User;
import com.example.mapper.UserMapper;
import com.example.utils.result.R;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@Slf4j
@RestController
@RequestMapping("/user")
@RequiredArgsConstructor(onConstructor_ = @Autowired)
public class UserController {
private final UserMapper userMapper;
@GetMapping("/hello")
public R getInfo(){
log.debug("debug ****************************");
log.info("info ****************************");
log.warn("warn ****************************");
log.error("error ****************************");
List<Map<String, Object>> maps = this.userMapper.selectMaps(null);
return R.ok(maps);
}
@GetMapping("/hello2")
public R getInfo2(){
log.debug("debug ****************************");
log.info("info ****************************");
log.warn("warn ****************************");
log.error("error ****************************");
User user = User.builder()
.userName("111")
.userPwd("222")
.createTime(new Date()).build();
Map<Object, Object> map = new HashMap<>();
return R.ok(user);
}
}
test in jmeter
Test Results:
Console output:
Log file:
The format of my generated file is .log. Not .gz. You can choose by yourself. I'm using this for testing.