jdk7 apt-get 找不到。
tomcat7 也没找到。
以下是安装成功的,供大家参考。
1.JAVA
openjdk-7-jdk
/usr/lib/jvm/java-7-openjdk-amd641.安装指定版本apt search jdk //查找版本sudo apt install default-jdk //此为默认版本sudo apt install openjdk-7-jdk -ysudo apt install openjdk-11-jdk -ysudo apt install openjdk-17-jdk -ysudo apt-get update
sudo apt-get install libgl1-mesa-dev 或者sudo apt-get install libgl1-mesa-dev:amd64
sudo apt-get install libgl1-mesa-dev:arm642.检查版本java -version3.卸载
#3.1列举所有版本 dpkg -lsudo dpkg -l | grep 'jdk\|jre' #3.2 卸载这些包 ,将包名替换为你找到的实际包名sudo apt purge default-jdk default-jdk-headless default-jre default-jre-headless openjdk-21-jdk openjdk-21-jdk-headless openjdk-21-jre openjdk-21-jre-headless#3.3 清除剩余的依赖项 sudo apt autoremove --purge#3.4 修改 JAVA_HOME环境变量4.多个jdk时设置默认版本sudo dpkg -l |grep 'jdk\jre' # 列举所有版本 dpkg -l sudo update-alternatives --config java #切换默认版本 5.设置JAVA_HOME环境变量sudo vim /etc/environmentsudo vim ~/.bashrcJAVA_HOME="/usr/lib/jvm/java-17-openjdk-amd64/bin/java"sudo source /etc/environmentsudo source ~/.bashrcsudo echo $JAVA_HOME
2.TOMCAT
tomcat-7
1.建文件夹 复制文件
sudo mkdir /home/tangcj/tomcat
sudo cp apache-tomcat-7.0.57.tar.gz /home/tangcj/tomcat7
sudo cd /home/tangcj/tomcat
tar -zxvf apache-tomcat-7.0.57.tar.gz -C /home/tangcj/tomcat72.修改权限,启动
chmod -R 777 ./apache-tomcat-7.0.57./tomcat7/bin/startup.sh3.浏览
localhost:80804.添加环境变量
CATALINA_HOME=/home/tangcj/tomcat7
环境变量 windows
CATACLNA_HOME: D:\JAVA\apache-tomcat
JAVA_HOME: C:\Program Files (x86)\Java\jdk1.7.0_13
path: %JAVA_HOME%\bin%JAVA_HOME%\jre\bin%CATALINA_HOME%\bin
CLASSPATH:
C:\Program Files (x86)\Java\jdk1.7.0_13\lib\dt.jar;
C:\Program Files (x86)\Java\jdk1.7.0_13\lib\tools.jar;
%CATACLNA_HOME%\libubuntu24.04vim ~/.bashrcexport JAVA_HOME=/home/tangcj/java7
export CATALINA_HOME=/home/tangcj/tomcat7
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$CATALINA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$CATALINA_HOME/lib:$CLASSPATHsource ~/.bashrc