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Environmental Science cas-server-4.1.8 cas-client-3.4.0 Java-8 Maven-3 Tomcat-7.0.72 CAS Server Installation Click here to enter the CAS download list and select cas-4.1.8.zip to download. https://github.com/apereo/cas/releases Unzip cas-4.1.8.zip and enter the cas-server-webapp directory. Open c ...

Nginx SSL+tomcat cluster, request.getScheme() fetches the correct protocol for https   Recently, in a project, Nginx +tomcat cluster is used in the architecture, and SSL,tomcat no SSL are configured under nginx. The project uses https protocol. However, it is clearly an https url request that finds the log s. 0428 15:55:55 INFO (Pa ...

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spark version 1.6.0, Scala version 2.12, jdk version 1.8. spark has been used recently and is recorded here. One master and three workers, together with Hadoop-2.7.7 cluster, namdenode on master and two datanode s on worker 1 and worker 2.     List-1 192.168.33.30 worker1 master 192.168.33.31 worker2 192.168.33.32 worker3 Modify the h ...

3. MySQL installation Several commonly used installation packages of MySQL: rpm, source code, binary compiler-free rpm package can not be customized, not recommended; source code to compile, very slow, but can improve performance, temporarily do not learn; learn others compiled compiler-free package first 3.1 Download Software Package [root@l ...

I. Introduction With the development of enterprise systems, applications are mostly distributed, which depends heavily on the stability of the network. However, due to the inherent instability of the network, it is necessary to consider how to ensure the robustness of the application when the network is unstable. Setting up network timeouts is ...

Introduction to ActiveMQ ActiveMQ is Apache's most popular and powerful open source message bus. ActiveMQ is a JMS Provider implementation that fully supports JMS 1.1 and J2EE 1.4 specifications JMS: Java Message Service java Message Service ActiveMQ: Implementing JMS Specification JMS only gives the interface, the concrete implementation is co ...

As a native Java-enabled messaging middleware, ActiveMQ, Spring, which interrupts everywhere, also provides a custom solution that inherits the JMS connection ActiveMQ.Based on JMS native interface specification and native implementation, Spring self-encapsulates a set of solutions that can be well integrated into the Spring framework and manag ...

I believe many people have heard of nginx, a small thing slowly swallowing apache and IIS share. So what exactly does it do? Maybe many people don't necessarily understand. When it comes to reverse proxy, many people may have heard about it, but it is not clear what reverse proxy is. Excerpt from a description on Baidu Encyclo ...

Common application scenarios for form duplicate submission1. When the network is delayed, the user clicks the submit button several times, which leads to the delay.2. After submitting the form, the user clicks the refresh button to cause the form to be submitted repeatedly.3. After submitting the user's form, click the browser Back button to re ...