bug collection

I do not want to canonical format, so sleepy want to sleep, I did not write the reason, have the opportunity to slowly supplement (I guess no chance)
please add solution

1. Request method 'POST' not supported
   Solution: POST errors applicable to a class method GET request;
   see the controller, @ RequestBody use post, @ RequestParam use GET

2. java.lang.IllegalStateException: Failed to execute CommandLineRunner
   解决：需要implements ApplicationRunner

3. spring cloud error com.netflix.client.ClientException: Load balancer does not have available server for client:
   Solution:
   look at the micro-name registry services: spring-application-name:
   Add
   Eureka-Client:
   registerWithEureka: # to true whether the service registration center to register their
   fetch-registry: true # Add phrase

4. spring-boot integration redis error: Caused by: java.lang.NoClassDefFoundError: redis / clients / util / SafeEncoder
   solve: lower version
   
   redis.clients
   jedis
   2.9.0
   

5. When the controller receives parameters intger is 0, mybatis sql query can not determine whether the air
   resolved: intger 0 is equivalent to null

6. spring boot redis报错：org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: NOAUTH Authentication required.
   解决：redis需要密码

7. Caused by: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors
   解决：jdbl增加属性useSSL=false

8. Spring Boot error: Could not transfer artifact (https://repo.maven.apache.org/maven2) : Received fatal alert: protocol_version -> [Help 1]
   resolve: jdk use version 1.8