有几个问题，不知道怎么回事？

[wsysl1989]

1.搭建好了之后，局域网其他电脑访问，总是提示“连接断开，正在尝试重新连接”，但是可以正常对话，服务端的电脑登录就没这提示。
2.局域网发送文件，地址都是指向127.0.0.1:9000，服务端可以接受打开，局域网其他电脑就不行了，这里需要修改哪里呢。
3.mysql创建的数据库名是im_platform，需要注意_而不是-。
4.我的配置文件
server:
port: 8888

spring:
profiles:
active: dev
application:
name: im-platform
mvc:
pathmatch:
matching-strategy: ant_path_matcher
servlet:
multipart:
max-file-size: 50MB
max-request-size: 50MB
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/im_platform?useSSL=false&useUnicode=true&characterEncoding=utf-8&allowPublicKeyRetrieval=true
username: root
password: root
data:
redis:
host: localhost
port: 6379
database: 1
jpa:
hibernate:
ddl-auto: update
show-sql: true
properties:
hibernate.format_sql: true

mybatis-plus:
global-config:
db-config:
id-type: AUTO
configuration:
map-underscore-to-camel-case: true
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

jwt:
accessToken:
expireIn: 1800
secret: MIIBIjANBgkq
refreshToken:
expireIn: 604800
secret: IKDiqVmn0VFU

minio:
endpoint: http://192.168.3.129:9000
access-key: minioadmin
secret-key: minioadmin
bucketName: box-im
imagePath: image
filePath: file
videoPath: video

[wsysl1989]

还有Proxy error: Could not proxy request /user/terminal/online?userIds=2 from 192.168.3.129:8080 to http://127.0.0.1:8888.