28: Chapter 3: develop Passport Service: 11: define attributes in the configuration file, and then obtain them in the code;

explain ：

（1） Why did you write this blog ？：

          ●  stay 【27： The third chapter ： Developing a pass service ：10：【 register / Sign in 】 Interface 】 in , We set up cookie When ,cookie Domain and path, We are all dead in the program ;

          ●  Obviously , In the development environment 、 Test environment 、 In production environment , Our probability needs to be revised ;; meanwhile , Later in the production environment , If it may also need to be modified ;

          ●  and , If you write this information in the code , If we want to modify , It's modified java Class ; And this is very bad ;

（2） Two solutions encountered before ：

          ●  The first way ： Write the information in application.properties The configuration file of this project （ This configuration file , yes Spring Boot Project , The core application The configuration file ） in ; then , You can use @Value Annotation to get ;;; This is in 【Spring Boot Entry seven ：【 In profile , Configure custom properties 】 and 【 Use @Value Annotation to get properties , To assign a value to a variable 】;】 and 【Spring Boot E-commerce projects 35： Commodity module II ：【 Add goods 】 Interface picture upload ：【 To upload pictures 】 Interface development ;】 in , Have a more detailed introduction ;

          ●  The second way ： We create a configuration file （ This configuration file , No Spring Boot The core configuration file for the project , It's a file we created blindly ） in ; then , Create a “ Get resource file information ” Class , Get information in the form of property files ;;; This is in 【19： The third chapter ： Developing a pass service ：2： In the program , Get through Alibaba cloud SMS service ;】, There is a more detailed introduction ;

（3） The approach taken by this blog is （2） The first way in ;

Catalog

One ：【 Configure custom properties 】 and 【 Use @Value annotation , To get 】;

1. stay 【user】 In the user's Micro service configuration file , To set properties ;

2. stay BaseController In the code of , You can get it ;

3. effect ;

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One ：【 Configure custom properties 】 and 【 Use @Value annotation , To get 】;

Statement ： Prior to the start , Please be sure to quickly review ： These two previous blogs ;

          【Spring Boot Entry seven ：【 In profile , Configure custom properties 】 and 【 Use @Value Annotation to get properties , To assign a value to a variable 】;】,

          【Spring Boot E-commerce projects 35： Commodity module II ：【 Add goods 】 Interface picture upload ：【 To upload pictures 】 Interface development ;】;

1. stay 【user】 In the user's Micro service configuration file , To set properties ;

2. stay BaseController In the code of , You can get it ;

explain ：

（1） A special point that needs to be explained ：

It can be understood in this way ,【user】 Introduced 【api】 after , Naturally, it is introduced 【api Medium BaseController】;;; Naturally at this time ,【BaseController】, You could say yes 【user】 Content in ;

3. effect ;

again install Look at the whole project , Then start 【user】 Main startup class of user microservice ; then , To register / Sign in ;（PS： In order to eliminate the previous interference , You'd better clear the browsing cookie）