Preface ：
Recently, I am learning about micro Services , Read the relevant courses of dark horse , Will relate Feign The knowledge of has summed up some , I hope I can help you guys and deepen your impression
If there is anything to be improved in the article, please give me more advice
Xiao Wei first thanked everyone for their support

@[toc]

🥤Feign Custom configuration for

Feign There are two ways to customize the configuration ：java Code configuration and Attribute configuration , These two configurations are described below .

Here we start with Feign Log configuration is an example ,Feign No logs are printed by default , When an exception occurs in the remote call , Subsequent debugging will want to see the details of the entire request , You can configure Feign Log requests .

Feign Log level of

1.NONE（ The default value is ）： Don't log anything

2.BASIC： Only the request method is recorded 、URL、 Response status code and execution time

3.HEADERS： Record BASIC Level based , Recording requests and responses header

4.FULL： Recording requests and responses header、body And metadata

Of course, there are other things besides logs , The following is presented in the form of a table ：

In general , The default value can meet our use , If you want to customize , Just create a custom @Bean Override default Bean that will do .

The configuration file

Modify based on the configuration file feign The log level can be for a single service ：

feign:    client:    config:       userservice: #  Configuration for a microservice         loggerLevel: FULL #  The level of logging  

It can also be for all services ：

feign:    client:    config:       default: #  Here we use default Global configuration , If you write the service name , It is the configuration for a micro service         loggerLevel: FULL #  The level of logging  

There are four levels of logs ：

• NONE： No log information is recorded , This is the default .
• BASIC： Record only the requested method ,URL And the response status code and execution time
• HEADERS： stay BASIC On the basis of , Additionally, the request and response header information is recorded
• FULL： Record details of all requests and responses , Including header information 、 Request body 、 Metadata .