「解决Tomcat JDK版本兼容性问题及离线安装Docker教程」(离线安装SqlServer2022企业版+tomcat7+jdk1.7（centos7）)-Peak-Gao

作者安装了tomcat7.0.55以下的版本，使用JDK1.8报错如下：

type Exception report
message
descriptionThe server encountered an internal error 0 that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 1 in the generated java fileThe type java.io.0bjectInput5tream cannot be resolved, It is indirectly referenced from required ,claas file
Stacktrace:
org.apache.jasper.compiler,DefaultErrorHandler.javacError(DefaultErrorHandler.java:95)org.apache.jasper.compiler,ErrorDispatcher.javacError(ErrorDispatcher.java:330)org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:457)org.apache.jasper.compiler.Compiler.compile(Compiler.java:374)org.apache.jasper.compiler,Compiler.compile(Compiler.java:352)org.apache.jasper.compiler,Compiler.compile(Compiler.java:339)org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:594)org.apache.jasper.servlet,JspServletWrapper.service(JspServletWrapper.java:344)org.apache.jasper.servlet,JspServlet,serviceJspFile(JspServlet.java:391)org.apache.jasper.servlet,JspServlet,service(JspServlet.java:334)javaxgervlethttp,HttpSerylet,service(HttpServletjava:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.12 logs.

注：Apache Tomcat 7支持JDK 1.8。Tomcat 7.0.55及更高版本是兼容JDK 1.8的

1、离线安装jdk1.7

官网下载解压和正常的1.8配置一样

2、离线安装tomcat7.0.79

去官网下载上传解压启动

3、离线安装docker

1、获取docker安装文件，官方地址如下（下载到本地上传）：

https://download.docker.com/linux/static/stable/x86_64/docker-19.03.9.tgz

2、将下载的安装文件进行解压，命令如下：

tar zxvf docker-19.03.9.tgz

3、将上述解压后文件（docker文件夹）全部移动至/usr/bin目录下（必须），命令如下：

cp -p docker/* /usr/bin

4、将docker注册为service，步骤如下：
①输入如下命令：

vim /etc/systemd/system/docker.service

或者

vim /usr/lib/systemd/system/docker.service

②点击i，下面出现-----insert----进入编辑状态
复制下面内容至docker.service，复制内容如下：

[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target docker.socket
[Service]
Type=notify
EnvironmentFile=-/run/flannel/docker
WorkingDirectory=/usr/local/bin
ExecStart=/usr/bin/dockerd 
                -H tcp://0.0.0.0:4243 
                -H unix:///var/run/docker.sock 
                --selinux-enabled=false 
                --log-opt max-size=1g
ExecReload=/bin/kill -s HUP $MAINPID


# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
# Uncomment TasksMax if your systemd version supports it.
# Only systemd 226 and above support this version.
#TasksMax=infinity
TimeoutStartSec=0
# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes
# kill only the docker process, not all processes in the cgroup
KillMode=process
Restart=on-failure
[Install]
WantedBy=multi-user.targetU1

复制完成之后，点击esc键，并输入:wq!保存并强制退出；
可执行如下命令，查看上述复制内容是否正确

cat /etc/systemd/system/docker.service

创建daemon.json配置文件,用来指定docker创建的镜像所处的目录，以免空间不足

touch /etc/docker/daemon.json

{
"data-root": "/home/dockerData"
}

5、重新加载docker配置文件，命令如下：

systemctl daemon-reload

6、启动docker，命令如下：

 systemctl start docker

7、设置docker开机启动，命令如下：

systemctl enable docker

8、查看docker是否安装成功，命令如下：

docker version

4、导入sqlServer2022企业版

docker load -i sqlServer2022企业版镜像

这个是将导出的sql文件复制到docker中导入不然直接导入找不见文件
将备份文件复制到docker下的sqlserver容器中，不然找不到备份

docker cp /path/to/your/database.bak 容器id:/var/opt/mssql/backup/

配置容器自启动

docker run --restart always -d your_image

在已经运行的容器上更新重启策略

docker update --restart always your_container_id