java.lang.IllegalArgumentException:Failed to decrypt

从错误可以看出，解密失败。

原因是你在数据库连接配置的地方，设置了加密。即:

config.decrypt=true
将其改成：

config.decrypt=false
问题就可以解决。

public-key: MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAITOx1pKAT9xh7cfoZqUw6SLjgl/Y44M2XUAw37aRndmku+FSdGp9PXGwJYoeXt/TbxR1DSdd7S2+/s1cUsvvDMCAwEAAQ==
spring:
http:
encoding:
charset: UTF-8
force: true
enabled: true
datasource:
druid:
url: jdbc:mysql://localhost:3306/fairchild?useSSL=true&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
# url: jdbc:mysql://192.168.31.196:3306/fairchild?useSSL=true&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
username: root
password: 123456
driver-class-name: com.mysql.cj.jdbc.Driver
# connection-properties: config.decrypt=true;config.decrypt.key=${public-key}
initial-size: 5
min-idle: 10
max-active: 20
max-wait: 60000
time-between-eviction-runs-millis: 2000
min-evictable-idle-time-millis: 60000
max-evictable-idle-time-millis: 9000000
test-while-idle: true
test-on-borrow: false
test-on-return: false
validation-query: select 1
pool-prepared-statements: true
max-open-prepared-statements: 20
async-init: true
stat-view-servlet:
enabled: true
url-pattern: /druid/*
reset-enable: true
login-username: druid
login-password: druid
web-stat-filter:
enabled: true
url-pattern: /*
exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"
session-stat-enable: false
profile-enable: true
filter:
wall:
enabled: true
db-type: mysql
config:
enabled: true
aop-patterns: cn.com.coding4fun.*
jpa:
show-sql: true
generate-ddl: false
hibernate:
ddl-auto: none
open-in-view: true
properties:
hibernate:
format_sql: true
order_updates: true
order_inserts: true
jdbc:
batch_size: 50
fetch_size: 50
javax:
cache:
provider: org.ehcache.jsr107.EhcacheCachingProvider
uri: classpath:hibernate-ehcache.xml
missing_cache_strategy: create
enable_lazy_load_no_trans: true
cache:
use_query_cache: true
use_second_level_cache: true
region_prefix: jcache-hibernate
use_minimal_puts: false
use_reference_entries: true
use_structured_entries: false
auto_evict_collection_cache: false
hibernate.cache.default_cache_concurrency_strategy: read-only
region:
factory_class: jcache
cache:
jcache:
provider: org.ehcache.jsr107.EhcacheCachingProvider
config: classpath:ehcache.xml
messages:
basename: i18n/messages
encoding: UTF-8
server:
port: 8081
tomcat:
uri-encoding: UTF-8