Tag：Serial number
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Time：2021-9-8
preface On the Internet, I think you big brothers love and hate What I love is that various powerful technical frameworks have already encapsulated the network, which is simple and easy to use. Every day, requests and fetchdata fly up Hate to be asked at every interview: “What’s the difference between HTTP and TCP?” “What […]
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Time：2021-8-31
case There is a real case. The security scheme is: Offline distribution to customersclientIdandsecretKey。 Request parameters are appendedclientId=xxx&ts=xxx&sign=xxx, where: tsWhen requestedtime stamp, which is the same as that of the server when it receives the requesttime stampCannot exceed1 minute。 signIs a signature string. The signature rule issign = sha256(clientId + “,” + secretKey + “,” […]
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Time：2021-8-25
TCP triple handshake TCP triple handshake process Suppose there is a sender computer and a receiver computer, and the vertical axis is the time axis First handshake Suppose that the sender actively establishes a connection with the receiver, so the sender will send a message for the first time (syn = 1, indicating that this […]
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Time：2021-8-13
order This article briefly introduces some attribute configurations of spring cloud stream binder Kafka. maven <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-stream-binder-kafka</artifactId> <version>1.0.3.RELEASE</version> </dependency> Stream properties spring-cloud-stream-1.0.3.RELEASE-sources.jar!/org/springframework/cloud/stream/config/ChannelBindingServiceProperties.java spring: cloud: stream: Instanceindex: 0 ## supports environment variable instance_ INDEX ## The instance index of the application: a number from 0 to instanceCount-1. Used for partitioning and with Kafka instanceCount: 1 […]
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Time：2021-8-8
Welcome to my official account.Rui talk, get my latest articles: 1、 Foreword API request control has always been a hot issue in the front-end field. There are many excellent open source projects available on the market. In the spirit of teaching people to fish, this text introduces how to use the most simple code to […]
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Time：2021-8-7
Introduction:SRTP: secure real time transport adopt Dtls negotiationAfter that, both parties of RTC communication are completed MasterKeyandMasterSaltNegotiations. Next, we continue to analyze how to use the exchanged key to encrypt RTP and RTCP in webrtc to realize the secure transmission of data. At the same time, this article will answer the problems encountered in the […]
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Time：2021-7-24
introduction When building the micro service platform in the bank, theZookeeperAs a service registry. Just distributedCAPIn terms of the theorem,ZookeeperdoCP，EurekadoAP, but it isAPThe scenario is more suitable for the high availability of the service registry, and availability is more important than consistency. Current domesticZookeeperPopularity is affected byDubboAlibaba has its own service registry to cooperate with […]
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Time：2021-7-15
Serial number of front end spa project based on Vue and Quasar (4) review Through the last articleLayout menu of front end spa project based on Vue and Quasar (3)We have completed the layout menu, this paper mainly introduces the realization of serial number function. brief introduction Mysql database does not have a single sequence. […]
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Time：2021-7-9
Introduction:SRTP: secure real time transport adopt Dtls negotiationAfter that, both sides of RTC communication are completed MasterKeyandMasterSaltWe need to negotiate. Next, we continue to analyze how to use the exchanged key to encrypt RTP and RTCP in webrtc to realize the secure transmission of data. At the same time, this article will answer the problems […]
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Time：2021-7-7
preface On the Internet, I think you brothers love and hate each other What I love is that all kinds of powerful technical frameworks have already encapsulated the network, which is simple and easy to use I hate to be asked every time I have an interview “What’s the difference between HTTP and TCP?” “What’s […]
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Time：2021-6-28
Three handshakes First handshake: when establishing a connection, the client sends a syn packet (syn = x) to the server and enters syn_ Sent status, waiting for server confirmation; SYN: synchronous sequence numbers. The second handshake: when the server receives the syn packet, it must confirm the syn (ACK = x + 1) of the […]
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Time：2021-6-26
…… //Serial number index page turning increment current page, fetchnum current page display number indexMethod(index){ return(this.currentPage-1)*this.fetchNum +index+1; }
