一：pom.xml配置：去掉Spring boot 默认的spring-boot-starter-logging，引入spring-boot-starter-log4j2
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org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-logging
org.springframework.boot
spring-boot-starter-log4j2
二：应用配置application.yaml
# logging
logging:
config: classpath:log4j2.xml
三：log42j.xml配置
D:/logs
[%-5p] [%d{yyyy-MM-dd HH:mm:ss SSS}] %c - %m%n
[%-5p] [%d{yyyy-MM-dd HH:mm:ss SSS}] %c - %m%n
[%-5p] [%d{yyyy-MM-dd HH:mm:ss SSS}] %c - %m%n
[%-5p] [%d{yyyy-MM-dd HH:mm:ss SSS}] %c - %m%n
四：Druid配置
# MySQL,druid
spring:
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driverClassName: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/upin_charge?allowMultiQueries=true&useUnicode=true&characterEncoding=UTF-8
username: username:
password: password:
druid:
# 连接池的配置信息
initial-size: 10
max-active: 100
min-idle: 10
max-wait: 60000
# 打开PSCache,并且指定每个连接上PSCache的大小
pool-prepared-statements: true
max-pool-prepared-statement-per-connection-size: 20
# 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
time-between-eviction-runs-millis: 60000
# 配置一个连接池中最小生存的时间，单位是毫秒
min-evictable-idle-time-millis: 300000
validation-query: SELECT 1 FROM DUAL
test-while-idle: true
test-on-borrow: false
test-on-return: false
#配置DruidStatViewServlet
stat-view-servlet:
enabled: true
url-pattern: /druid/*
#login-username: admin
#login-password: admin
# # 配置监控统计拦截的filters,去掉后，监控界面sql无法统计，'wall'用于防火墙
filters: stat,wall,log4j2
filter:
stat:
log-slow-sql: true
slow-sql-millis: 1000
merge-sql: true
wall:
config:
multi-statement-allow: true
log4j2:
enabled: true
result-set-log-enabled: true
statement-executable-sql-log-enable: true
statement-create-after-log-enabled: false
statement-close-after-log-enabled: false
result-set-open-after-log-enabled: false
result-set-close-after-log-enabled: false
五：日志文件查看
[DEBUG] [2019-08-06 16:58:20 570] druid.sql.Statement - {conn-10010, pstmt-20000} created. SELECT push_id,uuid,user_id,user_name,msg_type,msg_object,msg_title,msg_content,status,read_status,read_date,receive_date,receive_user_id,create_date FROM upin_msg.msg_push_info
WHERE status='01'
[DEBUG] [2019-08-06 16:58:20 577] druid.sql.Statement - {conn-10010, pstmt-20000} Parameters : []
[DEBUG] [2019-08-06 16:58:20 577] druid.sql.Statement - {conn-10010, pstmt-20000} Types : []
[DEBUG] [2019-08-06 16:58:20 595] druid.sql.Statement - {conn-10010, pstmt-20000} executed. SELECT push_id,uuid,user_id,user_name,msg_type,msg_object,msg_title,msg_content,status,read_status,read_date,receive_date,receive_user_id,create_date FROM upin_msg.msg_push_info
WHERE status='01'
[DEBUG] [2019-08-06 16:58:20 595] druid.sql.Statement - {conn-10010, pstmt-20000} executed. 19.4173 millis. SELECT push_id,uuid,user_id,user_name,msg_type,msg_object,msg_title,msg_content,status,read_status,read_date,receive_date,receive_user_id,create_date FROM upin_msg.msg_push_info
WHERE status='01'
[DEBUG] [2019-08-06 16:58:20 601] druid.sql.ResultSet - {conn-10010, pstmt-20000, rs-50000} Result: [2, null, 1, test, 01, test, null, test, 01, 00, null, null, null, 2019-08-05 13:41:12.0]
[DEBUG] [2019-08-06 16:58:20 603] druid.sql.ResultSet - {conn-10010, pstmt-20000, rs-50000} Result: [3, null, 1, test, 01, test, null, test, 01, 00, null, null, null, 2019-08-05 13:52:05.0]
[DEBUG] [2019-08-06 16:58:20 603] druid.sql.ResultSet - {conn-10010, pstmt-20000, rs-50000} Result: [4, null, 1, test, 01, test, null, test, 01, 00, null, null, null, 2019-08-05 13:53:50.0]
[DEBUG] [2019-08-06 16:58:20 603] druid.sql.ResultSet - {conn-10010, pstmt-20000, rs-50000} Result: [5, null, 1, test, 01, test, null, test, 01, 00, null, null, null, 2019-08-06 10:41:10.0]
[DEBUG] [2019-08-06 16:58:20 604] druid.sql.ResultSet - {conn-10010, pstmt-20000, rs-50000} Result: [6, null, 1, test, 01, test, null, test, 01, 00, null, null, null, 2019-08-06 13:49:58.0]
[DEBUG] [2019-08-06 16:58:20 605] druid.sql.Statement - {conn-10010, pstmt-20000} clearParameters.
[DEBUG] [2019-08-06 16:58:20 608] druid.sql.Statement - {conn-10010, pstmt-20000} Parameters : []
[DEBUG] [2019-08-06 16:58:20 608] druid.sql.Statement - {conn-10010, pstmt-20000} Types : []
当前名称：备忘录三：SpringBoot+Druid+log4j2
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