Centos7搭建Java环境（安装JDK、Maven、git、IDEA）_在centos中如何安装idea

一、安装JDK

1、卸载centos7自带

rpm -qa | grep jdk
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依次删除上面所列文件：

yum -y remove 上面显示的文件
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检查一下：

[root@localhost quzx]# java -version
bash: java: command not found...
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卸载完毕。

2、下载JDK

https://www.oracle.com/java/technologies/downloads/#java8

不能用wget命令。

3、安装JDK

mkdir -p /usr/local/java
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进入放文件的目录下

tar -zxvf jdk-8u351-linux-x64.tar.gz -C /usr/local/java/
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vim /etc/profile
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在最下面加上：

export JAVA_HOME=/usr/local/java/jdk1.8.0_351
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
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使用命令生效：

source /etc/profile
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检查是否安装成功：

[root@localhost Downloads]# java -version
java version "1.8.0_351"
Java(TM) SE Runtime Environment (build 1.8.0_351-b10)
Java HotSpot(TM) 64-Bit Server VM (build 25.351-b10, mixed mode)
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安装完成。

二、安装Maven

wget https://archive.apache.org/dist/maven/maven-3/3.5.0/binaries/apache-maven-3.5.0-bin.tar.gz

mkdir -p /usr/local/maven

tar -zxvf apache-maven-3.5.0-bin.tar.gz -C /usr/local/maven/

vim /etc/profile
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修改为如下形式：

export JAVA_HOME=/usr/local/java/jdk1.8.0_351
export JRE_HOME=${JAVA_HOME}/jre
export MAVEN_HOME=/usr/local/maven/apache-maven-3.5.0 #增加此行
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:${MAVEN_HOME}/bin:$PATH #修改此行
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使生效：

source /etc/profile
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检查是否安装成功：

[root@localhost Downloads]# mvn -v
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-04T03:39:06+08:00)
Maven home: /usr/local/maven/apache-maven-3.5.0
Java version: 1.8.0_351, vendor: Oracle Corporation
Java home: /usr/local/java/jdk1.8.0_351/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-1127.el7.x86_64", arch: "amd64", family: "unix"
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安装完成。

三、安装git

yum -y install git
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检查是否安装完成：

[root@localhost Downloads]# git --version
git version 1.8.3.1
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安装完成。

四、安装IDEA

1、下载安装

wget https://download.jetbrains.com/idea/ideaIU-2022.2.tar.gz
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--2022-12-27 21:21:39--  https://download.jetbrains.com/idea/ideaIU-2022.2.tar.gz
Resolving download.jetbrains.com (download.jetbrains.com)... 54.72.98.183, 52.30.174.243, 2a05:d018:93b:d103:9ef6:b46c:1446:c871, ...
Connecting to download.jetbrains.com (download.jetbrains.com)|54.72.98.183|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://download.jetbrains.com.cn/idea/ideaIU-2022.2.tar.gz [following]
--2022-12-27 21:21:41--  https://download.jetbrains.com.cn/idea/ideaIU-2022.2.tar.gz
Resolving download.jetbrains.com.cn (download.jetbrains.com.cn)... 118.193.97.138, 118.193.97.131, 118.193.97.148, ...
Connecting to download.jetbrains.com.cn (download.jetbrains.com.cn)|118.193.97.138|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1037063835 (989M) [binary/octet-stream]
Saving to: ‘ideaIU-2022.2.tar.gz’

100%[===========================================>] 1,037,063,835 10.8MB/s   in 97s    

2022-12-27 21:23:18 (10.2 MB/s) - ‘ideaIU-2022.2.tar.gz’ saved [1037063835/1037063835]


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下载完后解压：

tar -zxvf ideaIU-2022.2.tar.gz -C /usr/local/
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sh /usr/local/idea-IU-222.3345.118/bin/idea.sh
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2、创建快捷方式

进入目录，创建idea.desktop文件

cd ~/Desktop
touch idea.desktop
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编辑idea.desktop文件

vim idea.desktop
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内容如下：

[Desktop Entry]
Name[zh_CN]=IntelliJ IDEA
Name=IntelliJ IDEA
GenericName[zh_CN]=idea
GenericName=idea
X-GNOME-FullName[zh_CN]=IntelliJ IDEA
X-GNOME-FullName=IntelliJ IDEA 
Comment[zh_CN]=java IDE 
Keywords[zh_CN]=idea;java;dev;ide;
Keywords=idea;java;dev;ide;
Exec=/usr/local/idea-IU-222.3345.118/bin/idea.sh
# Translators: Do NOT translate or transliterate this text (this is an icon file name)!
Icon=/usr/local/idea-IU-222.3345.118/bin/idea.png
Terminal=false
Type=Application
Categories=GNOME;GTK;Utility;Clock;
StartupNotify=true
DBusActivatable=true
X-GNOME-UsesNotifications=true
X-Geoclue-Reason[zh_CN]=Java 
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图片使用自带idea.png：

保存后桌面出现文件：

双击，选择信任并执行

以后就可以方便的使用快捷方式打开IDEA了。

3、配置

新建一个项目，配置JDK

配置Maven

file-> setting

修改maven home path。

参考博客:
Centos7下Java开发基本环境搭建
centos8安装idea的图文详细步骤
CentOS7安装IntelliJ IDEA