Programmer Think

Overview of Apache Web Page Optimization In the enterprise, when Apache is deployed, only the default configuration parameters are used.This causes a lot of problems for the website, in other words, the default configuration is for a lower level than beforeServer Configuration, Previous Configuration No longer Applies to Today's Internet AgeTo ...

Reprint: https://blog.csdn.net/alibaba_f / article / details / 89407754 First, create an empty folder to facilitate the management of tomcat, solr and solr data source management; 2. Install tomcat and solr, and wear an empty folder solrHome         3. Copy the files under server → solr webApp → webApp in the so ...

In Chapter 1, we learned that the core configuration class of mybatis is org.apache.ibatis.session.Configuration.java Let's first look at the class diagram of Configuration.java Seeing the class diagram, I was stunned. There are too many properties However, considering that mybatis has such powerful functions and so m ...

1. Overview 2. Struts2 Quick Start Program 2.1 Development Process Comparison 2.2 Introducing dependencies 2.2 Create a jsp page 2.3 Configuring a front-end controller in web.xml 2.4 Create struts.xml configuration file 2.4 Create a HelloAction class 2.5 Configuring HelloAction in the struts.xml file 2.6 Add connections in i ...

1. Environmental constraints centos 7 64 bit nginx-1.5.0 apache-tomcat-8.5.38 2. Preconditions Complete tomcat cluster building and nginx load balancing https://www.jianshu.com/p/c8aa1a323e3a Decompress apache-tomcat-8.5.38 twice, and divide it into tomcat8180 and tomcat8280 Modify the ports of server.xml in tomcat8180 to ...

  First, explain 1. Definition of notes The Java file is called Annotation, which is represented by @ interface. 2. yuan annotation There are some notes on @ interface as needed, including @ Retention, @ Target, @ Document, @ Inherited. 3. Retention policy of notes @ Retention(RetentionPolicy.SOURCE) / / the annotation only ...

background Demand:java technology stack, to access all the current projects to the log center, the requirements seem relatively simple But in the process of implementation, there are various problems, such as different departments, different development frameworks and different levels of personnel competence, Scheme selection: Each project ...

To run maven, you must have a JDK, which is written in the Java language I. installation of JDK Download on ORACLE official websiteJDK jdk-8u231-linux-x64.tar.gz Upload JDK to linux server create folder [root@VM_0_17_centos /]# cd /opt [root@VM_0_17_centos opt]# mkdir jdk Using xftp tool to upload compressed files Connecting to a Linux server ...

For well-known reasons, maven's library is very slow in mainland China. Most of the articles I found on Baidu are directly added to ~ /. m2/setting.xml <mirrors> <mirror> <id>aliyunmaven</id> <mirrorOf>central</mirrorOf> <name>aliyun maven</name> <url>https://maven.aliy ...

Transfer of HBase table data In the Hadoop phase, the MR task we wrote has two classes: Mapper and Reducer. In HBase, we need to inherit two classes: TableMapper and TableReducer. Objective: to migrate part of the data in the fruit table to the fruit_mr table through MR Step 1. Build the ReadFruitMapper class to read the data in the fruit ta ...