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Implicit and implicit in Scala for implicit transformation and implicit parameters Rules: Available only if marked implicit The implicit transformation being inserted must be a single identifier of the current scope or be associated with the source or target type of the implicit transformation Only one implicit definition can be inserted ...

stay Lombok is often used, but do you know how it works? , and Lombok is often used, but do you know how it works? (two) In the two articles, the underlying principle of Lombok is introduced. In fact, it is summed up as a sentence that is realized by changing the abstract syntax tree during compilation. The above two articles have talked about ...

Wechat silent authorization process related problem process record Related tools Intranet penetration tool Peanut hull There is free 1G traffic per month, but I need to hold my ID card to take photos and upload. It's too troublesome to use. natapp Easy to use, you need to scan the real name with Alipay. other... Other friends also ...

Actuator 　　 In addition to service fault tolerance, Hystrix also provides near real-time monitoring function, which collects the service execution results and running indicators, the number of successful requests, etc. through the activator, and then accesses / Actor / Hystrix.stream to see the real-time monitoring data. 　　 Add dependency ...

Properties [key details] 1, Introduction & overview Why use Properties: to save the configuration information of the program more professionally.   Configuration information: information required for program running Program A: User name = zhangsan Password =xxxx IP=192.168.36.11 Authority = administrator Code table =utf-8   The Propert ...

order This paper mainly studies the metric exporter of skywalking metric-exporter.proto skywalking-6.6.0/oap-server/exporter/src/main/proto/metric-exporter.proto syntax = "proto3"; option java_multiple_files = true; option java_package = "org.apache.skywalking.oap.server.exporter.grpc"; service MetricExportService { rpc export (stream Ex ...

At present, many websites will have a lot of interactive functions, which reduces the user's operational difficulty, thus bringing the third-party login of WeChat to the project real-world function development.For the development content in this example, instead of using native content, use the encapsulated class libraries written by others dir ...

In the previous article, we integrated a service gateway, Spring Cloud Gateway, where all service requests can be accessed through Gateway.We can then authenticate the user's request at the service gateway level to determine whether the routed API interface can be accessed. So let's start with more authentication, and here we're using jwt 1. Cr ...

background In order to prevent the downstream service avalanche, the use of circuit breakers is considered here Technology selection Due to the spring boot service and the integration of istio, three solutions are considered here istio hystrix sentinel Here are the comparison of these schemes Implementation of microservice circuit breaker mod ...

Recently, when communicating with a big guy, I mentioned the problem of SQL query. His idea is to query data with the most primitive database driver without ORM. The benefits of doing so are twofold Express SQL semantics clearly for later optimization. Especially in report, data analysis and other complex SQL. Reduce useless encapsulation and ...