1. application.yaml application.properties区别
2. java -jar ****.jar --spring.profiles.active=pro
3. 热部署 springboot-devtools complier ctrl+shift +alt +/
4. @Value("${value.common：123"}) yaml: value.common:${defaultStr:12345}
application.run(" ------value.common=666");
优先级： args> yaml> code
5. @validated 1.5.3 后 才有
@configrationproperties ( prefix ="common”）
yaml:
common:
host:
port:
list: // #{'${listParm}‘.split(’，‘)}
- aaa
- bbb
map:
key1:value1
key2: value2
mapParam: "{key1:'value1', key2:'value2'}"
6. lombok
@data @tostring(exclude="password")
7. RestController Controller 区别
8. logback configration.. application.yaml文件中
logging:
file:
level:
actuator 监控，动态调整日志级别 ， 1.5 之后
9. springboot json converter 默认 jackson gson fastjson(不支持)
10. 父工程 使用dependencyManage 引入springboot springcloud， 实现双继承时，需要加<type>pom></type><scope>import</scope>
11. spring-cloud-config-server 配置：
spring.cloud.config.server.git.username
spring.cloud.config.server.git.password
spring.cloud.config.server.git.uri
spring.cloud.config.server.git.searchPaths:/{application}
spring.cloud.config.server.git.fore-pull:true
spring.cloud.config.server.git.basedir: /var/config // 默认为/tmp下， 此处需要修改 配置存放的目录
spring-cloud-config-client配置： bootstrap.yml
spring.cloud.config.uri: http://127.0.0.1:8888
spring.cloud.config.fail-fast: true
server.port:8881
@Data
@configproperties(prefix="") //推荐使用
public class Cloudconfig{}
@EnableConfigurationProperties(CloudConfig.class) 放在controller上
@Resource
private CloudConfig cloudconfig;
优先级：
1》2》3
1.项目目录里面的配置 /application-name 项目独立的配置
2. 仓库根目录里面的配置 / 统一的配置
3. 代码本地的配置 开发环境经常需要修改的配置
如何 实现 动态更新：
1. acturator 引入
2. management.address
management.security.enable:false
3. Cloudconf配置类 @RefreshScope
4. controller类 @RefreshScope
@hystrixcommand 默认10个并发
commandproperties={@hystrixProperty(name="execution.isolation.strategy",value="Thread"}
服务限流策略： 线程池 信号量
commandproperties={@hystrixProperty(name="execution.isolation.strategy",value="Thread"}},
ThreadPoolProperty={@HystrixProperty(name="coreSize",value="13")}}
常用配置项：
---------------springcloud 2.0.0
server.port
server.tomcat.accept-count:1200
server.tomcat.max-connections:1000
max-threads:1000
min-spare-threads:100
spring.application.name
spring.datasource.hikari.mininum-idle:10
maximum-pool-size:15
type: com.zaxxer.hikari.HikariDataSource
redis.cluster.max-redirects:3
jackson.serilization.write-dates-as-timestamps: true
servlet.multipart.max-file-size: 1MB
max-request-size:10MB
feign.hystrix.enabled: true
mybatis.configuration.map-underscore-to-camel-case: true
ribbon.ReadTimeout: 30000
ConnectTimeout: 30000
spring.servlet.multipart.max-file-size: 30MB
spring.servlet.multipart.max-request-size: 30MB
---------------springboot 1.5.9
hystrix.threadpool.default.coreSize: 200
spring.zipkin.base-url: ..........:9411
sleuth.sampler.percentage: 1 生产环境改为0.1
kafka.consumer.auto-offset-reset: earliest
group-id
key-deserializer : org.apache.kafka.common.serialization.StringDeserializer
value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
producer:
key-serializer : org.apache.kafka.common.serialization.StringSerializer
value-serializer: org.apache.kafka.common.serialization.StringSerializer
eureka.client.registerWithEureka: true
fetchRegistry: true
serviceUrl.defaultZone
instance.prefer-ip-address: true
feign.hystrix.enabled: true
hystrix.threadpool.default.coreSize: 200