Sunday, 6 October 2019
Wednesday, 2 October 2019
Spring Session
HTTP is a stateless protocol, meaning that all requests and responses are independent.
Http session is a way to keep states at a server-side. A cookie is another way to keep states in the client-side.
Spring session is a way to manage a cluster of Http sessions; across sessions, including their persistence.
Spring Security Session
Spring Boot Session
Tuesday, 1 October 2019
Monday, 30 September 2019
how to edit pushed commit message
Open the Intellij, Go to version control tab, then go to log.
Selecting a commit, press F2 and then edit the commit message.
Open git bash
Now it should see the bias between local and remote;
git pull; and it will merge the remote and local
It will popup a vi editor to ask for editing the merge message;
Edit the text;
Press ESC, and press shift + zz; then quit to the git bash command line.
now
now, the local will be ahead of the remote, do
git push.
Disable SpringBoot Security
My solution is to define a flag in property file, and injected it during the runtime;
Using the @Value, and maybe combined with @ProperySource , I am using spring boot 2.0 and found that the application property file already read in the Spring context.
spring-value-annotation
There are several options, the following may be an option for the boot 1.5
security.basic.enabled=false
management.security.enabled=falseFriday, 27 September 2019
Injecting Property Value in Spring boot 2
the property value active should be injected from the property file.
@Value("${spring.profiles.active}")
private String activeProfile;
spring-value-annotation
Kotlin
In general, Kotlin is an upgraded Java
Kotlin has no primitive types; only the Objects(wrapper classes in java)
Kotlin has no semi-coma, and keyword new,
Kotlin has no checked exceptions; so there is no forced catch.
Kotlin may have a single primary constructor defined at the class header.
By default, all classes defined are immutable, equal to final classes in Java; so it needs an open modifier to make it extendable.
Kotlin has no checked exception, all exceptions are derived from the throw-able.
Kotlin function can be independent of a class; by default, it is a static method, it must be a static method, for doesn't belong to any class. A function can be modified access modifiers. A private function means it can be only accessed within its file scope.
return Unit
Kotlin has no primitive types; only the Objects(wrapper classes in java)
Kotlin has no semi-coma, and keyword new,
Kotlin has no checked exceptions; so there is no forced catch.
Kotlin may have a single primary constructor defined at the class header.
By default, all classes defined are immutable, equal to final classes in Java; so it needs an open modifier to make it extendable.
Kotlin has no checked exception, all exceptions are derived from the throw-able.
Kotlin function can be independent of a class; by default, it is a static method, it must be a static method, for doesn't belong to any class. A function can be modified access modifiers. A private function means it can be only accessed within its file scope.
return Unit
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