Style:Mac

Series:Java

Since:2018-09-10

End:2018-09-10

Total Hours:1

Degree Of Diffculty:5

Degree Of Mastery:5

Practical Level:5

Desired Goal:5

Archieve Goal:3

Gerneral Evaluation:3

Writer:kingdelee

Related Links:

http://www.cnblogs.com/kingdelee/

1.

centos6.8安装:

yum install -y epel-release

安装出现问题:

Error: docker-ce conflicts with 2:docker-1.13.1-75.git8633870.el7.centos.x86_64

yum remove -y docker-ce.x86_64 docker-ce-cli.x86_64 containerd.io.x86_64

根据文档描述的去做

https://yq.aliyun.com/articles/110806?spm=5176.8351553.0.0.2e381991PnZGy9

1. 安装/升级Docker客户端

推荐安装1.10.0以上版本的Docker客户端,参考文档 docker-ce

2. 配置镜像加速器

其他io版本的,是有/etc/sysconfig/docker,需要在里边修改镜像,最新版的,只需要按照下面的方式修改就行了,不需要管那个docker以及其他多余的修改

针对Docker客户端版本大于 1.10.0 的用户

您可以通过修改daemon配置文件/etc/docker/daemon.json来使用加速器

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://mm9zx6r4.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

https://docs.docker.com/install/linux/docker-ce/centos/#install-docker-ce

yum install -y yum-utils device-mapper-persistent-data lvm2

yum-config-manager --enable docker-ce-edge

启动docker

sudo systemctl start docker

通过服务启动docker

sudo systemctl restart docker

安装后,出现启动问题,可以重新删除后,再次安装

rm: cannot remove ‘/var/lib/docker/containers’: Device or resource busy

rm -rf /var/lib/docker

提示:

rm: cannot remove ‘/var/lib/docker/aufs’: Device or resource busy

原因:

在建立容器的时候做了相应目录的挂载,没有卸载,所以Device or resource busy

解决方法:

查找挂载的目录cat /proc/mounts | grep "docker"

卸载umount /var/lib/docker/aufs

rm -rf /var/lib/docke

如果无法删除,就重启再删

https://www.cnblogs.com/anliven/p/6218741.html

https://success.docker.com/article/using-systemd-to-control-the-docker-daemon

vim /etc/systemd/system/docker.service

ExecStart=/usr/bin/dockerd --config-file=/etc/docker/daemon.json -H unix://

重载配置

sudo systemctl daemon-reload

重启镜像

sudo systemctl restart docker

查看

ps -ef | grep docker

拉镜像:

docker run hello-world

docker命令

docker images 列出本地主机上的景象

各个选项说明:

REPOSITORY:表示镜像的仓库源

TAG:镜像的标签

IMAGE ID:镜像ID

CREATED:镜像创建时间

SIZE:镜像大小

同一仓库源可以有多个 TAG,代表这个仓库源的不同个版本,我们使用 REPOSITORY:TAG 来定义不同的镜像。

如果你不指定一个镜像的版本标签,例如你只使用 ubuntu,docker 将默认使用 ubuntu:latest 镜像

 docker search 搜索某个镜像

docker pull mysql 下载mysql镜像

docker rmi mysql 删除某个镜像

docker rmi -f hello-world

docker rmi -f $(docker images -qa) 级联删除所有镜像

  • docker run -it 镜像id,运行镜像

OPTIONS说明(常用):有些是一个减号,有些是两个减号

--name="容器新名字": 为容器指定一个名称;

-d: 后台运行容器,并返回容器ID,也即启动守护式容器;

-i:以交互模式运行容器,通常与 -t 同时使用;

-t:为容器重新分配一个伪输入终端,通常与 -i 同时使用;

-P: 随机端口映射;

-p: 指定端口映射,有以下四种格式

ip:hostPort:containerPort

ip::containerPort

hostPort:containerPort

containerPort

指定容器名字

docker run --name centos -it 75835a67d134

  • docker ps,列出正在运行的容器

  • docker ps -a 列出正在运行+历史上运行过的容器

在容器内

exit,退出并停止容器

ctrl+p+g,退出但不终止容器,如果是iterm下,可以直接关闭标签即可

  • docker attach 进入已经启动的容器

通过 docker ps -n 10,找到前10个创建的容器

尽管是用的同一个镜像,但是每个容器都是独立的,这些独立的容器,是通过刚刚docker run -it 创建的:

centos,admiring_kalam

可以通过docker的启动命令将其启动

修改容器名字,容器不能重名

docker 容器(服务)重命名只要一个命令就可以:
docker rename 原容器名 新容器名

docker top 容器id,查看容器内正在运行的进程

docker inspect  6647e43f5912,查看容器内部细节

[
{
"Id": "6647e43f5912ce8945e29143f4059afaf3c50f1853a67ca6833bdc2a8da10202",
"Created": "2018-10-27T04:07:38.596144727Z",
"Path": "/bin/bash",
"Args": [],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 9554,
"ExitCode": 0,
"Error": "",
"StartedAt": "2018-10-27T05:22:04.957537315Z",
"FinishedAt": "2018-10-27T05:19:02.144550316Z"
},
"Image": "sha256:75835a67d1341bdc7f4cc4ed9fa1631a7d7b6998e9327272afea342d90c4ab6d",
"ResolvConfPath": "/var/lib/docker/containers/6647e43f5912ce8945e29143f4059afaf3c50f1853a67ca6833bdc2a8da10202/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/6647e43f5912ce8945e29143f4059afaf3c50f1853a67ca6833bdc2a8da10202/hostname",
"HostsPath": "/var/lib/docker/containers/6647e43f5912ce8945e29143f4059afaf3c50f1853a67ca6833bdc2a8da10202/hosts",
"LogPath": "/var/lib/docker/containers/6647e43f5912ce8945e29143f4059afaf3c50f1853a67ca6833bdc2a8da10202/6647e43f5912ce8945e29143f4059afaf3c50f1853a67ca6833bdc2a8da10202-json.log",
"Name": "/centos",
"RestartCount": 0,
"Driver": "devicemapper",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {},
"RestartPolicy": {
"Name": "no",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": null,
"GroupAdd": null,
"IpcMode": "shareable",
"Cgroup": "",
"Links": null,
"OomScoreAdj": 0,
"PidMode": "",
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"SecurityOpt": null,
"UTSMode": "",
"UsernsMode": "",
"ShmSize": 67108864,
"Runtime": "runc",
"ConsoleSize": [
0,
0
],
"Isolation": "",
"CpuShares": 0,
"Memory": 0,
"NanoCpus": 0,
"CgroupParent": "",
"BlkioWeight": 0,
"BlkioWeightDevice": [],
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": [],
"DeviceCgroupRules": null,
"DiskQuota": 0,
"KernelMemory": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": null,
"OomKillDisable": false,
"PidsLimit": 0,
"Ulimits": null,
"CpuCount": 0,
"CpuPercent": 0,
"IOMaximumIOps": 0,
"IOMaximumBandwidth": 0,
"MaskedPaths": [
"/proc/acpi",
"/proc/kcore",
"/proc/keys",
"/proc/latency_stats",
"/proc/timer_list",
"/proc/timer_stats",
"/proc/sched_debug",
"/proc/scsi",
"/sys/firmware"
],
"ReadonlyPaths": [
"/proc/asound",
"/proc/bus",
"/proc/fs",
"/proc/irq",
"/proc/sys",
"/proc/sysrq-trigger"
]
},
"GraphDriver": {
"Data": {
"DeviceId": "25",
"DeviceName": "docker-253:0-34571929-ac887ffa3045a9e8c0146009778996bb55a34e2e730e2baa6ad71dd1cc1f666f",
"DeviceSize": "10737418240"
},
"Name": "devicemapper"
},
"Mounts": [],
"Config": {
"Hostname": "6647e43f5912",
"Domainname": "",
"User": "",
"AttachStdin": true,
"AttachStdout": true,
"AttachStderr": true,
"Tty": true,
"OpenStdin": true,
"StdinOnce": true,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": [
"/bin/bash"
],
"ArgsEscaped": true,
"Image": "75835a67d134",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": null,
"Labels": {
"org.label-schema.build-date": "20181006",
"org.label-schema.license": "GPLv2",
"org.label-schema.name": "CentOS Base Image",
"org.label-schema.schema-version": "1.0",
"org.label-schema.vendor": "CentOS"
}
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "d23327c79fd6c87969d0aa190f2e465f5be2fd6a0179a70d7e7c70ef0f13b71d",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {},
"SandboxKey": "/var/run/docker/netns/d23327c79fd6",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "03e81113086826176c03190b95513cf19860b3dee30f4b340831630a24ca6baf",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:11:00:02",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "ca2d34924a01911c8bde199f3850427b3973b6fce3c00fc0ee47f79285c35c80",
"EndpointID": "03e81113086826176c03190b95513cf19860b3dee30f4b340831630a24ca6baf",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:02",
"DriverOpts": null
}
}
}
}
]

  

  • docker run -d 镜像名,创建镜像,并在后台运行

  • docker logs -tf --tail 10 6647e43f5912,查看logs日志,即history

  • docker exec -it 容器id ls,不进入容器,直接交互

docker cp 6647e43f5912:t1/a.txt . ,docker cp  容器ID:容器内路径 目的主机路径, 将容器的文件拷贝到主机上

attach    Attach to a running container                 # 当前 shell 下 attach 连接指定运行镜像

build     Build an image from a Dockerfile              # 通过 Dockerfile 定制镜像

commit    Create a new image from a container changes   # 提交当前容器为新的镜像

cp        Copy files/folders from the containers filesystem to the host path   #从容器中拷贝指定文件或者目录到宿主机中

create    Create a new container                        # 创建一个新的容器,同 run,但不启动容器

diff      Inspect changes on a container's filesystem   # 查看 docker 容器变化

events    Get real time events from the server          # 从 docker 服务获取容器实时事件

exec      Run a command in an existing container        # 在已存在的容器上运行命令

export    Stream the contents of a container as a tar archive   # 导出容器的内容流作为一个 tar 归档文件[对应 import ]

history   Show the history of an image                  # 展示一个镜像形成历史

images    List images                                   # 列出系统当前镜像

import    Create a new filesystem image from the contents of a tarball # 从tar包中的内容创建一个新的文件系统映像[对应export]

info      Display system-wide information               # 显示系统相关信息

inspect   Return low-level information on a container   # 查看容器详细信息

kill      Kill a running container                      # kill 指定 docker 容器

load      Load an image from a tar archive              # 从一个 tar 包中加载一个镜像[对应 save]

login     Register or Login to the docker registry server    # 注册或者登陆一个 docker 源服务器

logout    Log out from a Docker registry server          # 从当前 Docker registry 退出

logs      Fetch the logs of a container                 # 输出当前容器日志信息

port      Lookup the public-facing port which is NAT-ed to PRIVATE_PORT    # 查看映射端口对应的容器内部源端口

pause     Pause all processes within a container        # 暂停容器

ps        List containers                               # 列出容器列表

pull      Pull an image or a repository from the docker registry server   # 从docker镜像源服务器拉取指定镜像或者库镜像

push      Push an image or a repository to the docker registry server    # 推送指定镜像或者库镜像至docker源服务器

restart   Restart a running container                   # 重启运行的容器

rm        Remove one or more containers                 # 移除一个或者多个容器

rmi       Remove one or more images             # 移除一个或多个镜像[无容器使用该镜像才可删除,否则需删除相关容器才可继续或 -f 强制删除]

run       Run a command in a new container              # 创建一个新的容器并运行一个命令

save      Save an image to a tar archive                # 保存一个镜像为一个 tar 包[对应 load]

search    Search for an image on the Docker Hub         # 在 docker hub 中搜索镜像

start     Start a stopped containers                    # 启动容器

stop      Stop a running containers                     # 停止容器

tag       Tag an image into a repository                # 给源中镜像打标签

top       Lookup the running processes of a container   # 查看容器中运行的进程信息

unpause   Unpause a paused container                    # 取消暂停容器

version   Show the docker version information           # 查看 docker 版本号

wait      Block until a container stops, then print its exit code   # 截取容器停止时的退出状态值

-------------------------------------------



attach    Attach to a running container                 # 当前 shell 下 attach 连接指定运行镜像

build     Build an image from a Dockerfile              # 通过 Dockerfile 定制镜像

commit    Create a new image from a container changes   # 提交当前容器为新的镜像

cp        Copy files/folders from the containers filesystem to the host path   #从容器中拷贝指定文件或者目录到宿主机中

create    Create a new container                        # 创建一个新的容器,同 run,但不启动容器

diff      Inspect changes on a container's filesystem   # 查看 docker 容器变化

events    Get real time events from the server          # 从 docker 服务获取容器实时事件

exec      Run a command in an existing container        # 在已存在的容器上运行命令

export    Stream the contents of a container as a tar archive   # 导出容器的内容流作为一个 tar 归档文件[对应 import ]

history   Show the history of an image                  # 展示一个镜像形成历史

images    List images                                   # 列出系统当前镜像

import    Create a new filesystem image from the contents of a tarball # 从tar包中的内容创建一个新的文件系统映像[对应export]

info      Display system-wide information               # 显示系统相关信息

inspect   Return low-level information on a container   # 查看容器详细信息

kill      Kill a running container                      # kill 指定 docker 容器

load      Load an image from a tar archive              # 从一个 tar 包中加载一个镜像[对应 save]

login     Register or Login to the docker registry server    # 注册或者登陆一个 docker 源服务器

logout    Log out from a Docker registry server          # 从当前 Docker registry 退出

logs      Fetch the logs of a container                 # 输出当前容器日志信息

port      Lookup the public-facing port which is NAT-ed to PRIVATE_PORT    # 查看映射端口对应的容器内部源端口

pause     Pause all processes within a container        # 暂停容器

ps        List containers                               # 列出容器列表

pull      Pull an image or a repository from the docker registry server   # 从docker镜像源服务器拉取指定镜像或者库镜像

push      Push an image or a repository to the docker registry server    # 推送指定镜像或者库镜像至docker源服务器

restart   Restart a running container                   # 重启运行的容器

rm        Remove one or more containers                 # 移除一个或者多个容器

rmi       Remove one or more images             # 移除一个或多个镜像[无容器使用该镜像才可删除,否则需删除相关容器才可继续或 -f 强制删除]

run       Run a command in a new container              # 创建一个新的容器并运行一个命令

save      Save an image to a tar archive                # 保存一个镜像为一个 tar 包[对应 load]

search    Search for an image on the Docker Hub         # 在 docker hub 中搜索镜像

start     Start a stopped containers                    # 启动容器

stop      Stop a running containers                     # 停止容器

tag       Tag an image into a repository                # 给源中镜像打标签

top       Lookup the running processes of a container   # 查看容器中运行的进程信息

unpause   Unpause a paused container                    # 取消暂停容器

version   Show the docker version information           # 查看 docker 版本号

wait      Block until a container stops, then print its exit code   # 截取容器停止时的退出状态值

1.run和start的关系:

实践中需要注意的几个地方,创建并启动容器时候,通过docker run -it -p 主机端口:容器端口,这个端口一旦指定,容器就无法再去修改。

如果想换端口,就必须重新再run一遍。

每次run都会创建新的容器,所以,如果不需要修改端口的情况下,想再次开启容器,需要执行start而不是run。

如果是tomcat,在主机情况下,通过 localhost:主机端口 可以访问到docker的容器端口

比如:指定 docker run -it -p 8088:8080 tomcat,那么就可以通过 localhost:8088访问tomcat,因为docker中tomcat的默认端口是8080

删除nginx相关的容器

docker rm -f $(docker ps -a | grep nginx | awk '{print $1}')

尝试改了ip

来源:https://www.cnblogs.com/zhangzeyu/p/6427249.html

进入后修改 nginx.conf

没有vim时要安装vim

vim /etc/nginx/nginx.conf

镜像操作实验---------------------------

[root@localhost vagrant]# docker exec -it 5475cb7c3fa1 /bin/bash

root@5475cb7c3fa1:/usr/local/tomcat/webapps# rm -rf docs/

[root@localhost vagrant]# docker commit -a "lee"  -m "remove a docs" 5475cb7c3fa1 tomcat:v1
sha256:bbfa74687c1f9161fcfbe14ee8247445f7ac1a52fc47df46065c625ea8797069 [root@localhost vagrant]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
tomcat v1 bbfa74687c1f About a minute ago 463MB
tomcat latest 05af71dd9251 10 days ago 463MB
nginx latest dbfc48660aeb 11 days ago 109MB
centos latest 75835a67d134 2 weeks ago 200MB
[root@localhost vagrant]#

  

nginx启动-------------------------------------------

参考:https://blog.csdn.net/kim_weir/article/details/80403805

里边docker映射nginx时,出现无法映射的情况

解决思路

1.自己创建映射的目录及文件,并拷贝conf

2.修改文件访问权限

3.修改文件所有者权限

docker run -p 80:80 --name nginx_80_80 -v $PWD/www:/www -v $PWD/conf/nginx.conf:/etc/nginx/nginx.conf -v $PWD/logs:/wwwlogs  -d nginx

删除技巧:docker rm -f $(docker ps -a | grep nginx | awk '{print $1}')

设置共享目录------------------

本质上是创建数据卷进行共享通信

docker run -it -v /宿主机绝对路径目录:/容器内目录      镜像名

docker run -it -v /home/vagrant/test/myfile:/myfile centos

查看容器卷,docker inspect 容器id

-----------------------

可在Dockerfile中使用VOLUME指令来给镜像添加一个或多个数据卷

VOLUME["/dataVolumeContainer","/dataVolumeContainer2","/dataVolumeContainer3"]

构建镜像

# volume test
FROM centos
VOLUME ["/dataVolumeContainer1","/dataVolumeContainer2"]
CMD echo "finished,--------success1"
CMD /bin/bash

docker build -f 镜像文件 -t 新的镜像名

docker build -f /home/vagrant/test/myfile/dockerfile -t centos_v1

通过docker inspect 容器id查看

构建继承关系-----------

以这个为镜像centos_v1为模板,构建容器centos_t1,centos_t2,centos_t3

docker run -it --name centos_t1 centos_v1 /bin/bash
exit

[root@localhost myfile]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9be7c0facf42 centos_v1 "/bin/bash" 6 minutes ago Exited (0) 25 seconds ago centos_t1

  

启动

进入确认有这两个容器卷 

在卷1里边添加 centos_t1.txt

创建容器继承, centos_t2 继承 centos_t1 通过同一个镜像centos_v1

docker run -it --name centos_t2 --volumes-from centos_t1 centos_v1

[root@localhost myfile]# docker run -it --name centos_t2 --volumes from centos_t1 centos_v1
unknown flag: --volumes
See 'docker run --help'.
[root@localhost myfile]# docker run -it --name centos_t2 --volumes-from centos_t1 centos_v1
[root@612a7e2a951a /]# exit
exit
[root@localhost myfile]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
612a7e2a951a centos_v1 "/bin/sh -c /bin/bash" 12 seconds ago Exited (0) 2 seconds ago centos_t2
9be7c0facf42 centos_v1 "/bin/bash" 12 minutes ago Exited (0) 6 minutes ago centos_t1
32943e151a0d centos "/bin/bash" 6 hours ago Exited (0) 31 minutes ago modest_boyd
10ffd9d1d69d nginx "nginx -g 'daemon of…" 8 hours ago Up 8 hours 0.0.0.0:80->80/tcp nginx_80_80
977213f8852b tomcat:v1 "catalina.sh run" 22 hours ago Exited (143) 11 hours ago tomcat_v1
d78bf34cd7c9 tomcat "catalina.sh run" 30 hours ago Exited (143) 13 hours ago tomcat8088
1a9337aa387e centos "/bin/bash" 34 hours ago Exited (0) 34 hours ago awesome_benz
e2e9ba157f7b centos "/bin/bash" 34 hours ago Exited (0) 34 hours ago relaxed_bardeen
6647e43f5912 75835a67d134 "/bin/bash" 37 hours ago Exited (255) 31 hours ago centos
dc14127dd454 75835a67d134 "/bin/bash" 37 hours ago Exited (137) 36 hours ago centos2
46db1d72bb6e 4ab4c602aa5e "/hello" 3 days ago Exited (0) 3 days ago naughty_nash
[root@localhost myfile]# docker start 612a7e2a951a
612a7e2a951a
[root@localhost myfile]# docker attach 612a7e2a951a
[root@612a7e2a951a /]# cd /
.dockerenv dataVolumeContainer1/ etc/ lib64/ opt/ run/ sys/ var/
anaconda-post.log dataVolumeContainer2/ home/ media/ proc/ sbin/ tmp/
bin/ dev/ lib/ mnt/ root/ srv/ usr/
[root@612a7e2a951a /]# cd /dataVolumeContainer1
[root@612a7e2a951a dataVolumeContainer1]# ls
centos_t1.txt
[root@612a7e2a951a dataVolumeContainer1]#

关于继承,容器间的信息传递,数据卷的生命周期是持续到没有容器使用它为止

------------------------------------

  




最新文章

  1. oracle树形查询 start with connect by
  2. 揭开Socket编程的面纱
  3. 给groupBox添加滚动条
  4. 【bzoj3246】 Ioi2013—Dreaming
  5. LeetCode: Maximum Product Subarray &amp;&amp; Maximum Subarray &amp;子序列相关
  6. 转载robots.txt的学习
  7. spring @Component
  8. HTML5笔记3——Web Storage和本地数据库
  9. PyQt5--基础篇:用eric6工具实现三级联动效果
  10. ArcGIS中的坐标系:基本概念和常用操作(一)
  11. 创建Gitblit本地服务器(For windows )01
  12. CentOS下配置SS5(SOCKS5)代理服务器
  13. BZOJ3393 [Usaco2009 Jan]Laserphones 激光通讯 BFS
  14. Win8驱动的兼容性问题
  15. python框架之Django(13)-admin组件
  16. JDBC事务,银行转账,货物进出库等等。
  17. 用Sample Flex Viewer框架创建GeoWeb应用程序
  18. hadoop-eclipse插件编译及windows下运行wordcount项目
  19. Oracle 视图view
  20. 关于System.getProperty(&quot;java.io.tmpdir&quot;);的输出,及System.getProperty();参数

热门文章

  1. 别再用&quot;while (!feof(file))&quot;来逐行读取txt文件了!
  2. 在XPS13 上安装Ubuntu 16.04
  3. k-近邻算法概述
  4. MariaDB报错Plugin &#39;InnoDB&#39; init function returned error.解决方案
  5. JS对象的拷贝
  6. spark伪分布式的安装
  7. 2017-2018 ACM-ICPC, NEERC, Northern Subregional Contest
  8. Installation of CarbonData 1.1.0 with Spark 1.6.2
  9. C. Vasya and Robot二分
  10. 黑盒测试实践——day03