• Tomcat — MySQL — JDK — maven


    Automated shell scripts PS: JDK, Maven and Tomcat installed here are all in the / opt directory. If you need other directories or versions, you can change the shell script as needed.PS: all the code is hand tapping, has been tested and can be used, all shared. 1: Virtual machine initialization Create a shell script […]

  • What is JDK (java development kit) and what is the use of JDK


    JDK is the first step to learn java well. Whether you want to learn java programming, build JSP Web development environment, or Android development environment, you can’t do without it. JDK1.6, 1.7, 1.8 installation package: https://www.jb51.net/software/325375.htmlOfficial download address: http://www.oracle.com/technetwork/java/javase/downloads/index-jsp-138363.html What is JDK? 1. What is JDK? JDK is the abbreviation of java development kit, which […]

  • How to configure JDK environment under Linux


    1. Go to the official website to download the JDK package for Linux, such as jdk-8u162-linux-x64.tar.gz 2. Create a directory and copy the JDK package to it, such as home / haha / user / Java 3. Enter the directory in the console and execute tar zxvf jdk-8u162-linux-x64.tar.gz to decompress 4. Configure environment variables: Open […]

  • Download and install Tomcat on Linux server


    My website: www.mengyingjie.com Before downloading and installing tomcat, download and install JDK: Linux server downloads and installs JDK 1 download Tomcat: download address 2. Upload and unzip the file: (how to upload and download files to the server) tar -zxvf apache-tomcat-9.0.19.tar.gz 3. Add environment variables of Tomcat (those who are not familiar with VI operation […]

  • Installation of Java Development Environment (I)


    This battle project will start with the construction of Linux server until the basic functions of e-commerce project are completed. I. Linux Software Resource Configuration 1. Operating System Linux:centos6.8 64bit Download using Ali Mirror:https://mirrors.aliyun.com/ce… We will install the downloaded system in the virtual machine VirtualBox. 2. Source Configuration Since CentOS is installed by default using […]

  • Installation of Java Development Tools and Project Creation (IV)


    I. IDEA Environment Configuration 1. Configuring JDKConfigure => Project Default => Project structJDK version: 1.7.0 2. Configuring maven Maven Version: 3.0.5 Install IDEA and configure it maven. sudo vim ~/.bash_profile // Configuration file takes effect source ~/.bash_profile Installation and Configuration of Maven under Mac Maven Creates New Projects Create with maven:Check the prototype creation and […]

  • Introduction to Modifying MyEclipse’s default JDK version to local JDK


    How to modify the default version of MyEclipse JDK? Everyone knows that MyEclipse has its own JDK and default JDK version, because we will use JDK in other applications, so we will install a separate JDK locally. Now let’s talk about how to modify MyEclipse’s default JDK version to our own JDK version, such as […]

  • JDK10 Local Type Inference


    JDK10 Local Variable Type Inference (I) JDK10 Local-Variable Type Inference To experience JDK10 local variable type inference, you can choose Eclipse Oxygen or Intellij IDEA 2018.1.1, but at present (2018.4.10) to see that Eclipse Oxygen official does not give native support, can only experience Java 10 Support for Oxygen through plug-ins, but also some bugs, […]

  • Spring Series – Basic Chapter (3) – Building Development Environment (Based on Tomcat)


    Background introduction Members of the project have begun to use Spring MVC or Spring Boot to write background interfaces, but due to some limitations of the original environment, it will waste a lot of time on things other than programming in actual development.The application server used in the project is WebLogic, which is a powerful […]

  • Generics of Java Series


    Since JDK 1.5 provides the concept of generics, generics allow developers to define safer types, avoid type conversion abnormalities when forced type conversion occurs. Before introspection, objects can be used to complete operations between different types of data, but forced type conversion (downward transformation) is uncertain. In the case of body type, errors can occur, […]

  • JAVA Basic Course 1 (20190610v1.0)


    Welcome to JAVA Basic Course This series of articles will mainly focus on some basic knowledge points of JAVA, summarized in peacetime, whether it is new to JAVA development novice or industry veterans, all hope to bring some help to the broad masses of peers. If you have any questions, please leave a message or […]

  • CentOS 7.0 Installation of Scala and Sun JDK


    Today, installing Scala on centOS 7.0 found that cenos 7.0 had its own java-openjdk-headle.x86_64. Try to see if you can find that running. java source program found that the javac command could not be used, so you had to uninstall the JDK from OS. 1. Look at the openjdk package that comes with OS [[email protected] […]