java

jdk

各种JAVA JDK的镜像分发
编程宝库 - 技术改变世界 jdk 镜像

ubuntu22.04 安装

# Linux x64 64位	jdk-8u351-linux-x64.tar.gz

tar -zxf jdk-8u351-linux-x64.tar.gz                
mv jdk1.8.0_351 jdk8/ 

vim ~/.profile  
export JAVA_HOME=${HOME}/lang/jdk8                                                                                                             
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=$JAVA_HOME/bin:$PATH
                                                                                  
. ~/.profile  
java -version

maven 下载

wget https://dlcdn.apache.org/maven/maven-3/3.9.4/binaries/apache-maven-3.9.4-bin.tar.gz
tar -zxf apache-maven-3.9.1-bin.tar.gz 
mv apache-maven-3.9.1 maven

vim ~/.profile
export MAVEN_HOME=${HOME}/lang/maven
export PATH=$PATH:${MAVEN_HOME}/bin

. ~/.profile  
mvn -v

插件

Extension Pack for Java 会包含其他的插件
Getting Started with Java in VS Code

默认是提示要安装 jdk
Java 17 or more recent is required to run the Java extension. Please download and install a recent JDK. You can still compile your projects with older JDKs by configuring ‘java.configuration.runtimes’

指定特定的jdk, 在设置里进行搜索

{"java.jdt.ls.java.home": "/home/wxg/lang/jdk8/"}

设置成功后, 会在插件页提示 This extension is enabled globally., 代码也有相应的标志

查看调用层次