docker构建镜像 发布镜像

Dockerfile命令大全

# 引用
FROM centos
# 作者信息
MAINTAINER vitcloud.com>

# 运行环境路径
ENV MYPATH /usr/local
WORKDIR $MYPATH

# java软件环境
# 配置java环境目录
ENV JAVA_HOME /usr/local/jdk1.8.0_191
ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
# 配置tomcat环境目录
ENV CATALINA_HOME /usr/local/apache-tomcat-9.0.58
ENV CATALINA_BASE /usr/local/apache-tomcat-9.0.58
# path路径
ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin


# 安装第三方
RUN yum -y install vim			# vim
RUN yum -y install net-tools	# 网络

# python
RUN pip install flsk

# 暴露端口
EXPOSE 80

# 输出
CMD echo "------end------"

# 执行指令
CMD /bin/bash			# 只有最后一个会生效,可被替代
ENTRYPOINT ["ls","-a"]	# 可以追加命令

1 构建centos

1.1 Dockerfile

FROM centos
MAINTAINER vitcloud

ENV MYPATH /usr/local
WORKDIR $MYPATH

RUN yum -y install vim
RUN yum -y install net-tools

# 暴露端口
EXPOSE 80

CMD echo "------end------"
CMD /bin/bash

1.2 生成自己的容器镜像

名字:centos-base(若带版本 centos-base:1.0)
-f: dockerfile地址()

docker build -f ./Dockerfile -t centos-base .
docker build -f ./Dockerfile -t centos-base:1.0 .

1.3 运行(启动容器)

docker run -it centos-base

2 构建java环境(包含tomcat)

2.1 Dockerfile

FROM centos
MAINTAINER vitcloud.com>

COPY readme.txt /usr/local/readme.txt

# 添加 软件包
ADD jdk-8u191-linux-x64.tar.gz /usr/local/
ADD apache-tomcat-9.0.58.tar.gz /usr/local/

# 安装vim
RUN yum -y install vim

# 配置环境目录
ENV MYPATH /usr/lcoal
WORKDIR $MYPATH

# 配置java环境目录
ENV JAVA_HOME /usr/local/jdk1.8.0_191
ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

# 配置tomcat环境目录
ENV CATALINA_HOME /usr/local/apache-tomcat-9.0.58
ENV CATALINA_BASE /usr/local/apache-tomcat-9.0.58

# path路径
ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin

# 暴露端口
EXPOSE 8080

# 运行脚本
CMD /usr/local/apache-tomcat-9.0.58/bin/startup.sh && tail -F /usr/local/apache-tomcat-9.0.58/bin/logs/catalina.out

2.2 构建镜像

docker build -t vitcloud-tomcat .

2.3 启动容器

docker run -d -p 9090:8080 \
-v /usr/local/docker-build/tomcat/test:/usr/local/apache-tomcat-9.0.58/webapps/test \
-v /home/vitcloud-docker-build/tomcatlogs/:/usr/local/apache-tomcat-9.0.58/logs \
--name blog-tomcat \
vitcloud-tomcat

交互方式进入

docker exec -it 654c26bc7abb /bin/bash

2.4 发布项目

由于做了卷挂载,我们字节在本地编写项目就可以发布了

-app version="3.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="WebApp_ID">
</web-app>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>


"UTF-8">
云间来客<<span class="token operator">/</span>title>
<<span class="token operator">/</span>head>
<body>
    <div>测试日志<<span class="token operator">/</span>div>
<<span class="token operator">/</span>body>
<<span class="token operator">/</span>html>
</code></pre> 
  <h2>3 centos7-python38</h2> 
  <ul> 
   <li>centos7.6.1810</li> 
   <li>python 3.8.5</li> 
  </ul> 
  <h3>3.1 <code>Dockerfile</code></h3> 
  <p>https://www.python.org/ftp/python/3.8.5/Python-3.8.5.tgz</p> 
  <pre><code class="prism language-powershell"><span class="token keyword">FROM</span> centos:7<span class="token punctuation">.</span>6<span class="token punctuation">.</span>1810
MAINTAINER vitcloud<vitcloud@163<span class="token punctuation">.</span>com>
RUN <span class="token function">set</span> <span class="token operator">-</span>ex \
    <span class="token comment"># 预安装所需组件</span>
    && yum install <span class="token operator">-</span>y wget tar libffi<span class="token operator">-</span>devel zlib<span class="token operator">-</span>devel bzip2<span class="token operator">-</span>devel openssl<span class="token operator">-</span>devel ncurses<span class="token operator">-</span>devel sqlite<span class="token operator">-</span>devel readline<span class="token operator">-</span>devel tk<span class="token operator">-</span>devel gcc make initscripts \
    && wget https:<span class="token operator">/</span><span class="token operator">/</span>www<span class="token punctuation">.</span>python<span class="token punctuation">.</span>org<span class="token operator">/</span>ftp<span class="token operator">/</span>python<span class="token operator">/</span>3<span class="token punctuation">.</span>8<span class="token punctuation">.</span>5<span class="token operator">/</span>Python<span class="token operator">-</span>3<span class="token punctuation">.</span>8<span class="token punctuation">.</span>5<span class="token punctuation">.</span>tgz \
    && tar <span class="token operator">-</span>zxvf Python<span class="token operator">-</span>3<span class="token punctuation">.</span>8<span class="token punctuation">.</span>5<span class="token punctuation">.</span>tgz \
    && cd Python<span class="token operator">-</span>3<span class="token punctuation">.</span>8<span class="token punctuation">.</span>5 \
    && <span class="token punctuation">.</span><span class="token operator">/</span>configure prefix=<span class="token operator">/</span>usr<span class="token operator">/</span>local<span class="token operator">/</span>python3 \
    && make \
    && make install \
    && make clean \
    && <span class="token function">rm</span> <span class="token operator">-</span>rf <span class="token operator">/</span>Python<span class="token operator">-</span>3<span class="token punctuation">.</span>8<span class="token punctuation">.</span>5<span class="token operator">*</span> \
    && yum install <span class="token operator">-</span>y epel<span class="token operator">-</span>release \
    && yum install <span class="token operator">-</span>y python<span class="token operator">-</span>pip
<span class="token comment"># 设置默认为python3</span>
RUN <span class="token function">set</span> <span class="token operator">-</span>ex \
    <span class="token comment"># 备份旧版本python</span>
    && <span class="token function">mv</span> <span class="token operator">/</span>usr<span class="token operator">/</span>bin<span class="token operator">/</span>python <span class="token operator">/</span>usr<span class="token operator">/</span>bin<span class="token operator">/</span>python27 \
    && <span class="token function">mv</span> <span class="token operator">/</span>usr<span class="token operator">/</span>bin<span class="token operator">/</span>pip <span class="token operator">/</span>usr<span class="token operator">/</span>bin<span class="token operator">/</span>pip27 \
    <span class="token comment"># 配置默认为python3</span>
    && ln <span class="token operator">-</span>s <span class="token operator">/</span>usr<span class="token operator">/</span>local<span class="token operator">/</span>python3<span class="token operator">/</span>bin<span class="token operator">/</span>python3<span class="token punctuation">.</span>8 <span class="token operator">/</span>usr<span class="token operator">/</span>bin<span class="token operator">/</span>python \
    && ln <span class="token operator">-</span>s <span class="token operator">/</span>usr<span class="token operator">/</span>local<span class="token operator">/</span>python3<span class="token operator">/</span>bin<span class="token operator">/</span>pip3 <span class="token operator">/</span>usr<span class="token operator">/</span>bin<span class="token operator">/</span>pip
<span class="token comment"># 修复因修改python版本导致yum失效问题</span>
RUN <span class="token function">set</span> <span class="token operator">-</span>ex \
    && sed <span class="token operator">-</span>i <span class="token string">"s#/usr/bin/python#/usr/bin/python2.7#"</span> <span class="token operator">/</span>usr<span class="token operator">/</span>bin<span class="token operator">/</span>yum \
    && sed <span class="token operator">-</span>i <span class="token string">"s#/usr/bin/python#/usr/bin/python2.7#"</span> <span class="token operator">/</span>usr<span class="token operator">/</span>libexec<span class="token operator">/</span>urlgrabber<span class="token operator">-</span>ext<span class="token operator">-</span>down \
    && yum install <span class="token operator">-</span>y deltarpm
<span class="token comment"># 基础环境配置</span>
RUN <span class="token function">set</span> <span class="token operator">-</span>ex \
    <span class="token comment"># 修改系统时区为东八区</span>
    && <span class="token function">rm</span> <span class="token operator">-</span>rf <span class="token operator">/</span>etc<span class="token operator">/</span>localtime \
    && ln <span class="token operator">-</span>s <span class="token operator">/</span>usr<span class="token operator">/</span>share<span class="token operator">/</span>zoneinfo<span class="token operator">/</span>Asia<span class="token operator">/</span>Shanghai <span class="token operator">/</span>etc<span class="token operator">/</span>localtime \
    && yum install <span class="token operator">-</span>y vim \
    <span class="token comment"># 安装定时任务组件</span>
    && yum <span class="token operator">-</span>y install cronie
<span class="token comment"># 支持中文</span>
RUN yum install kde<span class="token operator">-</span>l10n<span class="token operator">-</span>Chinese <span class="token operator">-</span>y
RUN localedef <span class="token operator">-</span>c <span class="token operator">-</span>f UTF<span class="token operator">-</span>8 <span class="token operator">-</span>i zh_CN zh_CN<span class="token punctuation">.</span>utf8
<span class="token comment"># 更新pip版本</span>
RUN pip install <span class="token operator">--</span>upgrade pip
ENV LC_ALL zh_CN<span class="token punctuation">.</span>UTF<span class="token operator">-</span>8
</code></pre> 
  <h3>3.2 构建</h3> 
  <pre><code class="prism language-powershell">docker build <span class="token operator">-</span>t centos7<span class="token operator">-</span>python38 <span class="token punctuation">.</span>
</code></pre> 
  <h3>3.3 容器启动</h3> 
  <pre><code class="prism language-powershell">docker run <span class="token operator">-</span>itd \
<span class="token operator">--</span>restart always <span class="token operator">--</span>privileged=true \
<span class="token operator">-</span>v <span class="token operator">/</span>root<span class="token operator">/</span>dockers<span class="token operator">/</span>python:<span class="token operator">/</span>root<span class="token operator">/</span>python \
<span class="token operator">-</span>v <span class="token operator">/</span>root<span class="token operator">/</span>dockers<span class="token operator">/</span>python<span class="token operator">/</span>cron:<span class="token operator">/</span><span class="token keyword">var</span><span class="token operator">/</span>spool<span class="token operator">/</span>cron <span class="token operator">/</span>usr<span class="token operator">/</span>sbin<span class="token operator">/</span>init
python:37
<span class="token operator">--</span>name python
</code></pre> 
  <h2>9 commit、push、save</h2> 
  <h3>9.1 将容器提交镜像 commit</h3> 
  <pre><code class="prism language-powershell">docker commit 提交同期成为一个副本

<span class="token comment"># 命令和git原理类似</span>
docker commit <span class="token operator">-</span>m=<span class="token string">"提交的描述信息"</span> <span class="token operator">-</span>a=<span class="token string">"作者"</span> 容器id 目标镜像名:<span class="token namespace">[TAG]</span>
</code></pre> 
  <p>案例</p> 
  <pre><code class="prism language-powershell">docker commit <span class="token operator">-</span>a=<span class="token string">"有勇气的牛排"</span> <span class="token operator">-</span>m=<span class="token string">"add webapps app"</span> 48629b5a69d2 tomcat02:1<span class="token punctuation">.</span>0
</code></pre> 
  <h3>9.2 发布镜像 push</h3> 
  <blockquote> 
   <p>DockerHub<br> 地址:https://hub.docker.com/</p> 
  </blockquote> 
  <pre><code class="prism language-powershell"><span class="token comment"># 帮助</span>
docker login <span class="token operator">--</span>help

<span class="token comment"># 登录</span>
docker login <span class="token operator">-</span>u 用户名

<span class="token comment"># 推动自己的镜像到 DockerHub</span>
docker push vitcloud<span class="token operator">/</span>tomcat:1<span class="token punctuation">.</span>0
</code></pre> 
  <p>给镜像添加tag</p> 
  <pre><code class="prism language-powershell">docker tag d89b35c35d33 vitcloud<span class="token operator">/</span>tomcat:1<span class="token punctuation">.</span>0
</code></pre> 
  <blockquote> 
   <p>发布到阿里云镜像服务</p> 
  </blockquote> 
  <p>创建命名空间<br> 创建容器镜像服务<br> 创建命名空间<br> 创建容器镜像<br> 浏览阿里云</p> 
  <pre><code class="prism language-powershell"><span class="token comment"># 登录阿里云</span>
docker login <span class="token operator">--</span>username=1809296387@qq<span class="token punctuation">.</span>com registry<span class="token punctuation">.</span>cn<span class="token operator">-</span>zhangjiakou<span class="token punctuation">.</span>aliyuncs<span class="token punctuation">.</span>com

<span class="token comment"># 给镜像生成版本号</span>
docker tag <span class="token namespace">[ImageId]</span> registry<span class="token punctuation">.</span>cn<span class="token operator">-</span>zhangjiakou<span class="token punctuation">.</span>aliyuncs<span class="token punctuation">.</span>com<span class="token operator">/</span>warm<span class="token operator">-</span>test<span class="token operator">/</span>charles<span class="token operator">-</span>test:<span class="token punctuation">[</span>镜像版本号<span class="token punctuation">]</span>

<span class="token comment"># 推送</span>
docker push registry<span class="token punctuation">.</span>cn<span class="token operator">-</span>zhangjiakou<span class="token punctuation">.</span>aliyuncs<span class="token punctuation">.</span>com<span class="token operator">/</span>warm<span class="token operator">-</span>test<span class="token operator">/</span>diytomcat:1<span class="token punctuation">.</span>0

docker push vitcloud<span class="token operator">/</span>tomcat:1<span class="token punctuation">.</span>0

docker push registry<span class="token punctuation">.</span>cn<span class="token operator">-</span>zhangjiakou<span class="token punctuation">.</span>aliyuncs<span class="token punctuation">.</span>com<span class="token operator">/</span>warm<span class="token operator">-</span>test<span class="token operator">/</span>charles<span class="token operator">-</span>test:<span class="token punctuation">[</span>镜像版本号<span class="token punctuation">]</span>
</code></pre> 
  <h3>9.3 save</h3> 
  <p>将镜像保存到本地</p> 
  <pre><code class="prism language-powershell">docker save <span class="token operator">-</span>o centos7<span class="token operator">-</span>python38_2<span class="token punctuation">.</span>0<span class="token punctuation">.</span>tar centos7<span class="token operator">-</span>python38:2<span class="token punctuation">.</span>0
</code></pre> 
  <p>加载本地镜像</p> 
  <pre><code class="prism language-powershell">docker load <span class="token operator">-</span>i centos7<span class="token operator">-</span>python38_2<span class="token punctuation">.</span>0<span class="token punctuation">.</span>tar
</code></pre> 
  <p><a href="http://img.e-com-net.com/image/info8/dc5fda318bbf44d4b300105c74164f26.jpg" target="_blank"><img src="http://img.e-com-net.com/image/info8/dc5fda318bbf44d4b300105c74164f26.jpg" alt="docker构建镜像 发布镜像_第1张图片" width="344" height="344" style="border:1px solid black;"></a></p> 
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                        <span class="text-muted"></span>

                        <div>你是否曾感觉,即使拥有顶级的服务器和万兆网卡,你的网络应用也总是“喂不饱”硬件,性能总差那么一口气?传统的网络处理方式,就像在高速公路上设置了太多的收费站和检查点,限制了数据包的“奔跑”速度。今天,我们要深入探讨一个能够打破这些瓶颈,让你的网络应用快到飞起的“黑科技”——DPDK(DataPlaneDevelopmentKit,数据平面开发套件)。这不仅仅是一个工具包,更是一种全新的网络处理哲学。</div>
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                        <span class="text-muted">北漂老男人</span>
<a class="tag" taget="_blank" href="/search/Tomcat/1.htm">Tomcat</a><a class="tag" taget="_blank" href="/search/tomcat/1.htm">tomcat</a><a class="tag" taget="_blank" href="/search/java/1.htm">java</a>
                        <div>深入理解TomcatWrapper原理一、引言在Tomcat的分层容器架构中,Wrapper作为最底层的容器,专门负责管理单个Servlet的生命周期及请求分发。每一个Servlet(包括JSP、Filter等)都对应一个Wrapper。Wrapper是Servlet规范与Tomcat容器实现之间的桥梁,直接关系到请求的分发效率、Servlet的加载与重用、安全隔离等。本文将系统剖析Wrapper</div>
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                           title="微信公众号回调java_处理微信公众号消息回调" target="_blank">微信公众号回调java_处理微信公众号消息回调</a>
                        <span class="text-muted">weixin_39607620</span>
<a class="tag" taget="_blank" href="/search/%E5%BE%AE%E4%BF%A1%E5%85%AC%E4%BC%97%E5%8F%B7%E5%9B%9E%E8%B0%83java/1.htm">微信公众号回调java</a>
                        <div>1、背景在上一节中,咱们知道如何接入微信公众号,可是以后公众号会与咱们进行交互,那么微信公众号如何通知到咱们本身的服务器呢?咱们知道咱们接入的时候提供的url是GET/mp/entry,那么公众号以后产生的事件将会以POST/mp/entry发送到咱们本身的服务器上。html2、代码实现,此处仍是使用weixin-java-mp这个框架实现一、引入weixin-java-mpcom.github.</div>
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                           title="centos7安装配置 Anaconda3" target="_blank">centos7安装配置 Anaconda3</a>
                        <span class="text-muted"></span>

                        <div>Anaconda是一个用于科学计算的Python发行版,Anaconda于Python,相当于centos于linux。下载[root@testsrc]#mwgethttps://mirrors.tuna.tsinghua.edu.cn/anaconda/archive/Anaconda3-5.2.0-Linux-x86_64.shBegintodownload:Anaconda3-5.2.0-L</div>
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                        <span class="text-muted">名明鸣冥</span>
<a class="tag" taget="_blank" href="/search/python/1.htm">python</a><a class="tag" taget="_blank" href="/search/Qwen/1.htm">Qwen</a><a class="tag" taget="_blank" href="/search/vllm/1.htm">vllm</a><a class="tag" taget="_blank" href="/search/%E5%A4%A7%E6%A8%A1%E5%9E%8B%E9%83%A8%E7%BD%B2/1.htm">大模型部署</a>
                        <div>ollama和vllm的对比这块对比网上都很多资料了,这边使用上简单感觉就是ollama很方便部署,占用资料更少,但后续性能会差点,各选项也不一样.ollama安装和使用和docker很像,就不赘述了,这里是看vllm的安装硬件情况介绍30708G显存+-------------------------------------------------------------------------</div>
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                           title="新手如何通过github pages静态网站托管搭建个人网站和项目站点" target="_blank">新手如何通过github pages静态网站托管搭建个人网站和项目站点</a>
                        <span class="text-muted">vvandre</span>
<a class="tag" taget="_blank" href="/search/Web%E6%8A%80%E6%9C%AF/1.htm">Web技术</a><a class="tag" taget="_blank" href="/search/github/1.htm">github</a>
                        <div>一、githubpages静态网站托管介绍githubpages它是一个免费快捷的静态网站托管服务。对比传统建站,它有哪些优点呢?在传统方式中,首先要租用服务器,服务器上需要运行外部程序,还需要再购买域名,要配置SSL证书,最后还要配置DNS,将域名解析到服务器。这一套繁琐操作,基本上就把小白劝退了。graphTDA[租用服务器]-->B[部署Web应用(运行外部程序,如Nginx)]B-->C[</div>
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                           title="修改CentOS的SSH登录端口(22端口)" target="_blank">修改CentOS的SSH登录端口(22端口)</a>
                        <span class="text-muted">❀͜͡傀儡师</span>
<a class="tag" taget="_blank" href="/search/centos/1.htm">centos</a><a class="tag" taget="_blank" href="/search/ssh/1.htm">ssh</a><a class="tag" taget="_blank" href="/search/linux/1.htm">linux</a>
                        <div>要修改CentOS系统的SSH服务默认端口(22端口),请按照以下步骤操作:备份SSH配置文件sudocp/etc/ssh/sshd_config/etc/ssh/sshd_config.bak编辑SSH配置文件sudovi/etc/ssh/sshd_config查找并修改端口设置找到以下行(大约在第13行左右):#Port22取消注释并添加新端口(例如使用56001):#Port22Port56</div>
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                        <span class="text-muted">云博客-资源宝</span>
<a class="tag" taget="_blank" href="/search/%E6%99%BA%E8%83%BD%E6%89%8B%E6%9C%BA/1.htm">智能手机</a>
                        <div>搭建云手机教程本教程由分享:ziyouhua资源宝整理分享:www.httple.net首先检查自己vps是否支持这个项目sudoaptinstallcpu-checkerkvm-ok如果显示INFO:/dev/kvmexistsKVMaccelerationcanbeused表示支持,可以继续往下看ac13首先安装dockercurl-fsSLhttps://get.docker.com|sud</div>
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                        <span class="text-muted">bpmh</span>
<a class="tag" taget="_blank" href="/search/%E5%B8%B8%E7%94%A8%E5%B7%A5%E5%85%B7/1.htm">常用工具</a><a class="tag" taget="_blank" href="/search/word/1.htm">word</a><a class="tag" taget="_blank" href="/search/pdf/1.htm">pdf</a>
                        <div>️一、在线转换网站(方便快捷,无需安装)MicrosoftOfficeOnline(官方推荐,最安全可靠):网址:直接使用你的Microsoft账户登录https://www.office.com/方法:将你的.docx或.doc文件上传到OneDrive。在OfficeOnline中打开该Word文档。点击文件>另存为>下载PDF副本。优点:官方出品,完全免费,无需额外上传到第三方服务器,安全性</div>
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                        <span class="text-muted"></span>

                        <div>GitLab安装成功后默认语言是英语,只有登录后才能手动指定为中文,且这个配置只对自己生效,经查阅资料后,总结全局修改GitLab14默认语言为中文方法如下:0.进入容器如果你用Docker部署的GitLab,那么需要使用命令sudodockerexec-itgitlab/bin/bash进入容器1.修改rails配置文件打开/opt/gitlab/embedded/service/gitlab-</div>
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                        <span class="text-muted">Python×CATIA工业智造</span>
<a class="tag" taget="_blank" href="/search/%E7%88%AC%E8%99%AB/1.htm">爬虫</a><a class="tag" taget="_blank" href="/search/%E5%88%86%E5%B8%83%E5%BC%8F/1.htm">分布式</a><a class="tag" taget="_blank" href="/search/python/1.htm">python</a><a class="tag" taget="_blank" href="/search/pycharm/1.htm">pycharm</a>
                        <div>引言:爬虫工程化的必然选择随着企业数据采集需求指数级增长,传统单点爬虫管理模式面临三重困境:管理效率瓶颈:手动部署耗时占开发总时长的40%以上系统可靠性低:研究显示超过65%的爬虫故障源于部署或调度错误资源利用率差:平均爬虫服务器CPU利用率不足30%爬虫管理方案对比:┌───────────────┬─────────────┬───────────┬───────────┬──────────</div>
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                           title="Claude Code 超详细完整指南(2025最新版)" target="_blank">Claude Code 超详细完整指南(2025最新版)</a>
                        <span class="text-muted">笙囧同学</span>
<a class="tag" taget="_blank" href="/search/python/1.htm">python</a>
                        <div>终端AI编程助手|高频使用点+生态工具+完整命令参考+最新MCP配置目录快速开始(5分钟上手)详细安装指南系统要求Windows安装(WSL方案)macOS安装Linux安装安装验证配置与认证首次认证环境变量配置代理配置⚡基础命令详解启动命令会话管理文件操作Think模式完全指南MCP服务器配置详解MCP基础概念添加MCP服务器10个必备MCP服务器MCP故障排除记忆系统详解高级使用技巧成本控制策</div>
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                           title="负载均衡-加权随机算法" target="_blank">负载均衡-加权随机算法</a>
                        <span class="text-muted">BP白朴</span>
<a class="tag" taget="_blank" href="/search/Nginx/1.htm">Nginx</a><a class="tag" taget="_blank" href="/search/%E8%B4%9F%E8%BD%BD%E5%9D%87%E8%A1%A1/1.htm">负载均衡</a><a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/%E7%AE%97%E6%B3%95/1.htm">算法</a><a class="tag" taget="_blank" href="/search/%E6%9C%8D%E5%8A%A1%E5%99%A8/1.htm">服务器</a>
                        <div>负载均衡-加权随机算法由于访问概率大致相同,所以如果部分服务器性能不一致的话,容易导致性能差的服务器压力过大,所以要根据服务器性能不一致的情况,给性能好的服务器多处理请求,给差的少分配请求(能者多劳)所以就需要在随机算法的基础上给每台服务器设置权重,延伸为加权随机算法1、将应用服务器集群的IP存到Map里,每个IP对应有一个权重2、创建一个List,来将所有权重下的IP存到list里面如:192.</div>
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                           title="如何在 Ubuntu 24.04 或 22.04 Linux 上安装和运行 Redis 服务器" target="_blank">如何在 Ubuntu 24.04 或 22.04 Linux 上安装和运行 Redis 服务器</a>
                        <span class="text-muted">山岚的运维笔记</span>
<a class="tag" taget="_blank" href="/search/Linux/1.htm">Linux</a><a class="tag" taget="_blank" href="/search/%E8%BF%90%E7%BB%B4%E5%8F%8A%E4%BD%BF%E7%94%A8/1.htm">运维及使用</a><a class="tag" taget="_blank" href="/search/linux/1.htm">linux</a><a class="tag" taget="_blank" href="/search/%E6%9C%8D%E5%8A%A1%E5%99%A8/1.htm">服务器</a><a class="tag" taget="_blank" href="/search/ubuntu/1.htm">ubuntu</a><a class="tag" taget="_blank" href="/search/redis/1.htm">redis</a><a class="tag" taget="_blank" href="/search/%E6%95%B0%E6%8D%AE%E5%BA%93/1.htm">数据库</a>
                        <div>Redis(RemoteDictionaryServer,远程字典服务器)是一种内存数据结构存储,通常用作NoSQL数据库、缓存和消息代理。它是开源的,因此用户可以免费安装,无需支付任何费用。Redis旨在为需要快速数据访问和低延迟的应用程序提供速度和效率。Redis支持多种数据类型,包括字符串(Strings)、列表(Lists)、集合(Sets)、哈希(Hashes)、有序集合(SortedS</div>
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                        <span class="text-muted">qu木木</span>
<a class="tag" taget="_blank" href="/search/%E7%BD%91%E7%BB%9C/1.htm">网络</a><a class="tag" taget="_blank" href="/search/http/1.htm">http</a><a class="tag" taget="_blank" href="/search/%E7%BC%93%E5%AD%98/1.htm">缓存</a>
                        <div>文章目录一、是什么?二、核心作用三、指令详解(常用)四、常见场景配置示例五、重要注意事项一、是什么?Cache-Control是HTTP头部中最关键、最灵活的控制缓存的字段,用于定义在客户端(浏览器)和代理服务器(如CDN)上的缓存策略。它取代了HTTP/1.0时代较为简单的Expires和Pragma头部,提供了更精细的控制。二、核心作用是否缓存:明确支出响应是否可以缓存,以及可以被谁缓存(浏览</div>
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                           title="webSocket双向通信" target="_blank">webSocket双向通信</a>
                        <span class="text-muted">@泽栖</span>
<a class="tag" taget="_blank" href="/search/websocket/1.htm">websocket</a><a class="tag" taget="_blank" href="/search/%E7%BD%91%E7%BB%9C%E5%8D%8F%E8%AE%AE/1.htm">网络协议</a><a class="tag" taget="_blank" href="/search/%E7%BD%91%E7%BB%9C/1.htm">网络</a>
                        <div>webSocket基础使用webSocket小说明:作用浏览器与服务器全双工通信——浏览器和服务器只需要完成一次握手,两者之间就可以创建持久性的连接,并进行双向数据传输。WebSocket与HTTP最大的区别HTTP通信是单向的,基于请求响应模式WebSocket支持双向通信。实现长连接适用场景:消息通信,视频弹幕,实时信息,等双向通信的使用需求使用:引入maven依赖org.springfram</div>
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                        <span class="text-muted">長樂.-</span>
<a class="tag" taget="_blank" href="/search/linux/1.htm">linux</a><a class="tag" taget="_blank" href="/search/%E8%BF%90%E7%BB%B4/1.htm">运维</a><a class="tag" taget="_blank" href="/search/%E6%9C%8D%E5%8A%A1%E5%99%A8/1.htm">服务器</a>
                        <div>Samba简述27zkqsamba是一个基于TCP/IP协议的开源软件套件,可以在Linux、Windows、macOS等操作系统上运行。它允许不同操作系统的计算机之间实现文件和打印机共享。samba提供了一个服务,使得Windows操作系统可以像访问本地文件一样访问Linux、Mac等操作系统上的共享文件。实现跨平台的文件共享,提高办公环境的效率和便利性。samba也支持Windows网络邻居协</div>
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                        <span class="text-muted">LLLL96</span>
<a class="tag" taget="_blank" href="/search/Ubuntu/1.htm">Ubuntu</a><a class="tag" taget="_blank" href="/search/docker/1.htm">docker</a><a class="tag" taget="_blank" href="/search/docker/1.htm">docker</a><a class="tag" taget="_blank" href="/search/redis/1.htm">redis</a><a class="tag" taget="_blank" href="/search/ubuntu/1.htm">ubuntu</a>
                        <div>目录介绍1.数据结构丰富2.高性能3.持久化1.拉取Redis镜像2.创建挂载目录(可选)3.配置Redis持久化(可选)4.使用配置文件运行容器5.查看redis日志介绍1.数据结构丰富Redis支持多种数据结构,包括:字符串(String):可以用来存储任何类型的数据,例如文本、数字或二进制数据。哈希(Hash):存储字段和值的映射,适合用于表示对象。列表(List):有序的字符串列表,可以用</div>
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                           title="Docker" target="_blank">Docker</a>
                        <span class="text-muted">℡余晖^</span>
<a class="tag" taget="_blank" href="/search/%E9%BB%91%E9%A9%AC%E7%82%B9%E8%AF%84%E9%A1%B9%E7%9B%AE%E7%9B%B8%E5%85%B3%E9%97%AE%E9%A2%98%E5%92%8C%E7%AC%94%E8%AE%B0/1.htm">黑马点评项目相关问题和笔记</a><a class="tag" taget="_blank" href="/search/docker/1.htm">docker</a><a class="tag" taget="_blank" href="/search/eureka/1.htm">eureka</a><a class="tag" taget="_blank" href="/search/%E5%AE%B9%E5%99%A8/1.htm">容器</a>
                        <div>在黑马点评项目中,在谈到Redisson解决redis的主从一致性问题时,弹幕提到了Docker,本文来简单了解一下Docker,我的初步理解运维是维护多个集群的稳定,那它和VM虚拟机的区别又是什么?,如果要更深入地理解与学习(运维工程师),可以到b站搜索专门的课程(SpringCloud)。一、Docker是什么?重新理解“容器化”的本质1.1Docker的定义Docker是一个开源的容器化平台</div>
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                        <span class="text-muted">李多田</span>

                        <div>本文还有配套的精品资源,点击获取简介:SpringWebFlux是Spring框架的一部分,支持反应式编程模型,适合高并发和低延迟Web应用。它提供了非阻塞I/O和事件驱动模型,优化了多核处理器资源的使用。SpringWebFlux拥有两种编程模式,核心组件包括WebHandler,RouterFunction,WebFilter,和WebSession。它与高性能服务器集成,并提供反应式HTTP</div>
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                        <span class="text-muted">web前端学习指南</span>

                        <div>为什么学习Web前端一定要掌握JavaScript?在前端的世界里,没有什么是JavaScript实现不了的,关于JS有一句话:凡是可以用JavaScript来写的应用,最终都会用JavaScript,JavaScript可运行在所有主要平台的所有主流浏览器上,也可运行在每一个主流操作系统的服务器端上。现如今我们在为网站写任何一个主要功能的时候都需要有懂能够用JavaScript写前端的开发人员。</div>
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                        <span class="text-muted"></span>

                        <div>引言分布式系统架构下,安全认证与授权面临跨服务、高并发、多租户等挑战。SpringSecurity与OAuth2.0的结合为微服务安全提供了标准化解决方案。分布式系统中的安全挑战跨服务身份认证的复杂性令牌管理的可扩展性问题多租户场景下的权限隔离需求防止CSRF、XSS等常见攻击SpringSecurityOAuth2.0核心架构授权服务器设计@EnableAuthorizationServer配置</div>
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                           title="Spring Native与GraalVM:无服务器架构的突破" target="_blank">Spring Native与GraalVM:无服务器架构的突破</a>
                        <span class="text-muted">tmjpz04412</span>
<a class="tag" taget="_blank" href="/search/spring/1.htm">spring</a><a class="tag" taget="_blank" href="/search/serverless/1.htm">serverless</a><a class="tag" taget="_blank" href="/search/%E6%9E%B6%E6%9E%84/1.htm">架构</a>
                        <div>SpringNative与GraalVM的关系SpringNative是Spring生态系统的一个模块,旨在支持将Spring应用编译为原生可执行文件。GraalVM是一个高性能运行时,提供原生镜像编译能力,允许将Java应用转换为独立的可执行文件。两者结合,显著提升了启动速度和内存效率。无服务器架构中的优势原生编译后的应用启动时间从秒级降至毫秒级,完美适配无服务器环境的冷启动需求。内存占用减少5</div>
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                           title="Docker部署Minio" target="_blank">Docker部署Minio</a>
                        <span class="text-muted">YiShuoChen666</span>
<a class="tag" taget="_blank" href="/search/eureka/1.htm">eureka</a><a class="tag" taget="_blank" href="/search/%E4%BA%91%E5%8E%9F%E7%94%9F/1.htm">云原生</a><a class="tag" taget="_blank" href="/search/docker/1.htm">docker</a><a class="tag" taget="_blank" href="/search/minio/1.htm">minio</a>
                        <div>一、拉取镜像dockerpullminio/minio:RELEASE.2025-04-22T22-12-26Z注:这里使用的版本是RELEASE.2025-04-22T22-12-26Z,最新的版本Web-UI界面没有管理bucket和其它的操作按钮,需要通过mc命令来实现,这对于新手很不友好二、创建目录,来存放minio的配置和将来放的文件mkdir-p/home/minio/configmk</div>
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                           title="使用 C# 实现 FTP 上传的方法,包括详细的代码示例和测试代码" target="_blank">使用 C# 实现 FTP 上传的方法,包括详细的代码示例和测试代码</a>
                        <span class="text-muted">zhxup606</span>
<a class="tag" taget="_blank" href="/search/%E6%9D%8E%E5%B7%A5%E7%AF%87/1.htm">李工篇</a><a class="tag" taget="_blank" href="/search/C%23%E5%AE%9E%E6%88%98%E6%95%99%E7%A8%8B/1.htm">C#实战教程</a><a class="tag" taget="_blank" href="/search/c%23/1.htm">c#</a><a class="tag" taget="_blank" href="/search/%E5%BC%80%E5%8F%91%E8%AF%AD%E8%A8%80/1.htm">开发语言</a>
                        <div>以下是使用C#实现FTP上传的方法,包括详细的代码示例和测试代码。以下代码使用System.Net.FtpWebRequest实现文件上传,并附带一个简单的测试用例。C#FTP上传方法csharpusingSystem;usingSystem.IO;usingSystem.Net;publicclassFtpClient{//////上传文件到FTP服务器//////FTP服务器地址,例如ftp:</div>
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                                <li><a href="/article/111.htm"
                                       title="JAVA基础" target="_blank">JAVA基础</a>
                                    <span class="text-muted">灵静志远</span>
<a class="tag" taget="_blank" href="/search/%E4%BD%8D%E8%BF%90%E7%AE%97/1.htm">位运算</a><a class="tag" taget="_blank" href="/search/%E5%8A%A0%E8%BD%BD/1.htm">加载</a><a class="tag" taget="_blank" href="/search/Date/1.htm">Date</a><a class="tag" taget="_blank" href="/search/%E5%AD%97%E7%AC%A6%E4%B8%B2%E6%B1%A0/1.htm">字符串池</a><a class="tag" taget="_blank" href="/search/%E8%A6%86%E7%9B%96/1.htm">覆盖</a>
                                    <div>一、类的初始化顺序 
1 (静态变量,静态代码块)-->(变量,初始化块)--> 构造器 
 同一括号里的,根据它们在程序中的顺序来决定。上面所述是同一类中。如果是继承的情况,那就在父类到子类交替初始化。 
 
二、String 
1 String a = "abc"; 
 JAVA虚拟机首先在字符串池中查找是否已经存在了值为"abc"的对象,根</div>
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                                <li><a href="/article/238.htm"
                                       title="keepalived实现redis主从高可用" target="_blank">keepalived实现redis主从高可用</a>
                                    <span class="text-muted">bylijinnan</span>
<a class="tag" taget="_blank" href="/search/redis/1.htm">redis</a>
                                    <div>方案说明 
 
两台机器(称为A和B),以统一的VIP对外提供服务 
1.正常情况下,A和B都启动,B会把A的数据同步过来(B is slave of A) 
2.当A挂了后,VIP漂移到B;B的keepalived 通知redis 执行:slaveof no one,由B提供服务 
3.当A起来后,VIP不切换,仍在B上面;而A的keepalived 通知redis 执行slaveof B,开始</div>
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                                <li><a href="/article/365.htm"
                                       title="java文件操作大全" target="_blank">java文件操作大全</a>
                                    <span class="text-muted">0624chenhong</span>
<a class="tag" taget="_blank" href="/search/java/1.htm">java</a>
                                    <div>最近在博客园看到一篇比较全面的文件操作文章,转过来留着。 
 
http://www.cnblogs.com/zhuocheng/archive/2011/12/12/2285290.html 
 
转自http://blog.sina.com.cn/s/blog_4a9f789a0100ik3p.html 
 
 
一.获得控制台用户输入的信息 
 
   &nbs</div>
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                                       title="android学习任务" target="_blank">android学习任务</a>
                                    <span class="text-muted">不懂事的小屁孩</span>
<a class="tag" taget="_blank" href="/search/%E5%B7%A5%E4%BD%9C/1.htm">工作</a>
                                    <div>任务 
完成情况   搞清楚带箭头的pupupwindows和不带的使用 已完成   熟练使用pupupwindows和alertdialog,并搞清楚两者的区别 已完成   熟练使用android的线程handler,并敲示例代码 进行中   了解游戏2048的流程,并完成其代码工作 进行中-差几个actionbar   研究一下android的动画效果,写一个实例 已完成   复习fragem</div>
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                                       title="zoom.js" target="_blank">zoom.js</a>
                                    <span class="text-muted">换个号韩国红果果</span>
<a class="tag" taget="_blank" href="/search/oom/1.htm">oom</a>
                                    <div>它的基于bootstrap 的 
https://raw.github.com/twbs/bootstrap/master/js/transition.js  transition.js模块引用顺序 
 

<link rel="stylesheet" href="style/zoom.css">
<script src=&q</div>
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                                       title="详解Oracle云操作系统Solaris 11.2" target="_blank">详解Oracle云操作系统Solaris 11.2</a>
                                    <span class="text-muted">蓝儿唯美</span>
<a class="tag" taget="_blank" href="/search/Solaris/1.htm">Solaris</a>
                                    <div>当Oracle发布Solaris 11时,它将自己的操作系统称为第一个面向云的操作系统。Oracle在发布Solaris 11.2时继续它以云为中心的基调。但是,这些说法没有告诉我们为什么Solaris是配得上云的。幸好,我们不需要等太久。Solaris11.2有4个重要的技术可以在一个有效的云实现中发挥重要作用:OpenStack、内核域、统一存档(UA)和弹性虚拟交换(EVS)。  </div>
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                                <li><a href="/article/873.htm"
                                       title="spring学习——springmvc(一)" target="_blank">spring学习——springmvc(一)</a>
                                    <span class="text-muted">a-john</span>
<a class="tag" taget="_blank" href="/search/springMVC/1.htm">springMVC</a>
                                    <div>Spring MVC基于模型-视图-控制器(Model-View-Controller,MVC)实现,能够帮助我们构建像Spring框架那样灵活和松耦合的Web应用程序。 
  
1,跟踪Spring MVC的请求 
请求的第一站是Spring的DispatcherServlet。与大多数基于Java的Web框架一样,Spring MVC所有的请求都会通过一个前端控制器Servlet。前</div>
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                                       title="hdu4342 History repeat itself-------多校联合五" target="_blank">hdu4342 History repeat itself-------多校联合五</a>
                                    <span class="text-muted">aijuans</span>
<a class="tag" taget="_blank" href="/search/%E6%95%B0%E8%AE%BA/1.htm">数论</a>
                                    <div>水题就不多说什么了。 
#include<iostream>#include<cstdlib>#include<stdio.h>#define ll __int64using namespace std;int main(){    int t;    ll n;    scanf("%d",&t);    while(t--)   </div>
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                                <li><a href="/article/1127.htm"
                                       title="EJB和javabean的区别" target="_blank">EJB和javabean的区别</a>
                                    <span class="text-muted">asia007</span>
<a class="tag" taget="_blank" href="/search/bean/1.htm">bean</a><a class="tag" taget="_blank" href="/search/ejb/1.htm">ejb</a>
                                    <div>EJB不是一般的JavaBean,EJB是企业级JavaBean,EJB一共分为3种,实体Bean,消息Bean,会话Bean,书写EJB是需要遵循一定的规范的,具体规范你可以参考相关的资料.另外,要运行EJB,你需要相应的EJB容器,比如Weblogic,Jboss等,而JavaBean不需要,只需要安装Tomcat就可以了 
  
1.EJB用于服务端应用开发, 而JavaBeans</div>
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                                <li><a href="/article/1254.htm"
                                       title="Struts的action和Result总结" target="_blank">Struts的action和Result总结</a>
                                    <span class="text-muted">百合不是茶</span>
<a class="tag" taget="_blank" href="/search/struts/1.htm">struts</a><a class="tag" taget="_blank" href="/search/Action%E9%85%8D%E7%BD%AE/1.htm">Action配置</a><a class="tag" taget="_blank" href="/search/Result%E9%85%8D%E7%BD%AE/1.htm">Result配置</a>
                                    <div>  
  
一:Action的配置详解: 
     下面是一个Struts中一个空的Struts.xml的配置文件 
    
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
	&quo</div>
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                                <li><a href="/article/1381.htm"
                                       title="如何带好自已的团队" target="_blank">如何带好自已的团队</a>
                                    <span class="text-muted">bijian1013</span>
<a class="tag" taget="_blank" href="/search/%E9%A1%B9%E7%9B%AE%E7%AE%A1%E7%90%86/1.htm">项目管理</a><a class="tag" taget="_blank" href="/search/%E5%9B%A2%E9%98%9F%E7%AE%A1%E7%90%86/1.htm">团队管理</a><a class="tag" taget="_blank" href="/search/%E5%9B%A2%E9%98%9F/1.htm">团队</a>
                                    <div>在网上看到博客" 
怎么才能让团队成员好好干活"的评论,觉得写的比较好。   原文如下:   我做团队管理有几年了吧,我和你分享一下我认为带好团队的几点: 
1.诚信 
        对团队内成员,无论是技术研究、交流、问题探讨,要尽可能的保持一种诚信的态度,用心去做好,你的团队会感觉得到。   2.努力提</div>
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                                    <span class="text-muted">sunjing</span>
<a class="tag" taget="_blank" href="/search/ProGuard/1.htm">ProGuard</a>
                                    <div>Open Source Obfuscators 
ProGuard 
http://java-source.net/open-source/obfuscators/proguardProGuard is a free Java class file shrinker and obfuscator. It can detect and remove unused classes, fields, m</div>
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                                       title="【Redis三】基于Redis sentinel的自动failover主从复制" target="_blank">【Redis三】基于Redis sentinel的自动failover主从复制</a>
                                    <span class="text-muted">bit1129</span>
<a class="tag" taget="_blank" href="/search/redis/1.htm">redis</a>
                                    <div>在第二篇中使用2.8.17搭建了主从复制,但是它存在Master单点问题,为了解决这个问题,Redis从2.6开始引入sentinel,用于监控和管理Redis的主从复制环境,进行自动failover,即Master挂了后,sentinel自动从从服务器选出一个Master使主从复制集群仍然可以工作,如果Master醒来再次加入集群,只能以从服务器的形式工作。 
  什么是Sentine</div>
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                                <li><a href="/article/1762.htm"
                                       title="使用代理实现Hibernate Dao层自动事务" target="_blank">使用代理实现Hibernate Dao层自动事务</a>
                                    <span class="text-muted">白糖_</span>
<a class="tag" taget="_blank" href="/search/DAO/1.htm">DAO</a><a class="tag" taget="_blank" href="/search/spring/1.htm">spring</a><a class="tag" taget="_blank" href="/search/AOP/1.htm">AOP</a><a class="tag" taget="_blank" href="/search/%E6%A1%86%E6%9E%B6/1.htm">框架</a><a class="tag" taget="_blank" href="/search/Hibernate/1.htm">Hibernate</a>
                                    <div>都说spring利用AOP实现自动事务处理机制非常好,但在只有hibernate这个框架情况下,我们开启session、管理事务就往往很麻烦。 
public void save(Object obj){
		Session session = this.getSession();
		Transaction tran = session.beginTransaction();
		try </div>
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                                <li><a href="/article/1889.htm"
                                       title="maven3实战读书笔记" target="_blank">maven3实战读书笔记</a>
                                    <span class="text-muted">braveCS</span>
<a class="tag" taget="_blank" href="/search/maven3/1.htm">maven3</a>
                                    <div>Maven简介 
是什么? 
Is a software project management and comprehension tool.项目管理工具 
是基于POM概念(工程对象模型) 
[设计重复、编码重复、文档重复、构建重复,maven最大化消除了构建的重复] 
[与XP:简单、交流与反馈;测试驱动开发、十分钟构建、持续集成、富有信息的工作区] 
  
  
功能: </div>
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                                <li><a href="/article/2016.htm"
                                       title="编程之美-子数组的最大乘积" target="_blank">编程之美-子数组的最大乘积</a>
                                    <span class="text-muted">bylijinnan</span>
<a class="tag" taget="_blank" href="/search/%E7%BC%96%E7%A8%8B%E4%B9%8B%E7%BE%8E/1.htm">编程之美</a>
                                    <div>

public class MaxProduct {

	/**
	 * 编程之美 子数组的最大乘积
	 * 题目: 给定一个长度为N的整数数组,只允许使用乘法,不能用除法,计算任意N-1个数的组合中乘积中最大的一组,并写出算法的时间复杂度。
	 * 以下程序对应书上两种方法,求得“乘积中最大的一组”的乘积——都是有溢出的可能的。
	 * 但按题目的意思,是要求得这个子数组,而不</div>
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                                <li><a href="/article/2143.htm"
                                       title="读书笔记-2" target="_blank">读书笔记-2</a>
                                    <span class="text-muted">chengxuyuancsdn</span>
<a class="tag" taget="_blank" href="/search/%E8%AF%BB%E4%B9%A6%E7%AC%94%E8%AE%B0/1.htm">读书笔记</a>
                                    <div>1、反射 
2、oracle年-月-日 时-分-秒 
3、oracle创建有参、无参函数 
4、oracle行转列 
5、Struts2拦截器 
6、Filter过滤器(web.xml) 
 
 
1、反射
(1)检查类的结构
在java.lang.reflect包里有3个类Field,Method,Constructor分别用于描述类的域、方法和构造器。
2、oracle年月日时分秒
s</div>
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                                       title="[求学与房地产]慎重选择IT培训学校" target="_blank">[求学与房地产]慎重选择IT培训学校</a>
                                    <span class="text-muted">comsci</span>
<a class="tag" taget="_blank" href="/search/it/1.htm">it</a>
                                    <div>      关于培训学校的教学和教师的问题,我们就不讨论了,我主要关心的是这个问题 
 
      培训学校的教学楼和宿舍的环境和稳定性问题 
 
      我们大家都知道,房子是一个比较昂贵的东西,特别是那种能够当教室的房子... 
 
&nb</div>
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                                <li><a href="/article/2397.htm"
                                       title="RMAN配置中通道(CHANNEL)相关参数 PARALLELISM 、FILESPERSET的关系" target="_blank">RMAN配置中通道(CHANNEL)相关参数 PARALLELISM 、FILESPERSET的关系</a>
                                    <span class="text-muted">daizj</span>
<a class="tag" taget="_blank" href="/search/oracle/1.htm">oracle</a><a class="tag" taget="_blank" href="/search/rman/1.htm">rman</a><a class="tag" taget="_blank" href="/search/filesperset/1.htm">filesperset</a><a class="tag" taget="_blank" href="/search/PARALLELISM/1.htm">PARALLELISM</a>
                                    <div>RMAN配置中通道(CHANNEL)相关参数 PARALLELISM 、FILESPERSET的关系 转 
 
PARALLELISM --- 
 
我们还可以通过parallelism参数来指定同时"自动"创建多少个通道: 
RMAN > configure device type disk parallelism 3 ; 
表示启动三个通道,可以加快备份恢复的速度。 </div>
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                                <li><a href="/article/2524.htm"
                                       title="简单排序:冒泡排序" target="_blank">简单排序:冒泡排序</a>
                                    <span class="text-muted">dieslrae</span>
<a class="tag" taget="_blank" href="/search/%E5%86%92%E6%B3%A1%E6%8E%92%E5%BA%8F/1.htm">冒泡排序</a>
                                    <div>
    public void bubbleSort(int[] array){
        for(int i=1;i<array.length;i++){
            for(int k=0;k<array.length-i;k++){
                if(array[k] > array[k+1]){
             </div>
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                                    <span class="text-muted">dcj3sjt126com</span>
<a class="tag" taget="_blank" href="/search/sciet/1.htm">sciet</a>
                                    <div>concert 音乐会 
tonight 今晚 
famous 有名的;著名的 
song 歌曲 
thousand 千 
accident 事故;灾难 
careless 粗心的,大意的 
break 折断;断裂;破碎 
heart 心(脏) 
happen  偶尔发生,碰巧 
tourist 旅游者;观光者 
science (自然)科学 
marry 结婚 
subject 题目;</div>
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                                       title="I.安装Memcahce 1. 安装依赖包libevent Memcache需要安装libevent,所以安装前可能需要执行 Shell代码 收藏代码" target="_blank">I.安装Memcahce 1. 安装依赖包libevent Memcache需要安装libevent,所以安装前可能需要执行 Shell代码 收藏代码</a>
                                    <span class="text-muted">dcj3sjt126com</span>
<a class="tag" taget="_blank" href="/search/redis/1.htm">redis</a>
                                    <div>wget http://download.redis.io/redis-stable.tar.gz 
tar xvzf redis-stable.tar.gz 
cd redis-stable 
make 
  
前面3步应该没有问题,主要的问题是执行make的时候,出现了异常。 
异常一: 
make[2]: cc: Command not found 
异常原因:没有安装g</div>
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   并发容器ConcurrentHashMap 
      替代同步基于散列的Map,通过Lock控制。 
  &nb</div>
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<a class="tag" taget="_blank" href="/search/Spring+Security/1.htm">Spring Security</a><a class="tag" taget="_blank" href="/search/Remember+Me/1.htm">Remember Me</a><a class="tag" taget="_blank" href="/search/%E8%AE%B0%E4%BD%8F%E6%88%91/1.htm">记住我</a>
                                    <div>Remember-Me功能 
  
目录 
  
1.1     概述 
1.2     基于简单加密token的方法 
1.3     基于持久化token的方法 
1.4     Remember-Me相关接口和实现</div>
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一、位运算符C语言提供了六种位运算符: 
 
& 按位与 
| 按位或 
^ 按位异或 
~ 取反 
<< 左移 
>> 右移 
 
 

1. 按位与运算 按位与运算符"&"是双目运算符。其功能是参与运算的两数各对应的二进位相与。只有对应的两个二进位均为1时,结果位才为1 ,否则为0。参与运算的数以补码方式出现。 
 
例如:9&am</div>
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                                    <div>1.mysql 连接 
   package.json中dependencies加入 
  
  
"mysql":"~2.7.0" 
   执行 npm install 
  
   在config 下创建文件 database.js 
    
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<a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/HotSpot/1.htm">HotSpot</a><a class="tag" taget="_blank" href="/search/jvm/1.htm">jvm</a><a class="tag" taget="_blank" href="/search/%E5%8A%A8%E6%80%81%E7%BC%96%E8%AF%91/1.htm">动态编译</a>
                                    <div>    在HotSpot虚拟机中,有两个技术是至关重要的,即动态编译(Dynamic compilation)和Profiling。 
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                                    <span class="text-muted">roadrunners</span>
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                                    <div>nimbus结点配置(storm.yaml)信息: 
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional inf</div>
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                                    <div> 1. 拥有足够的物理内存来把整个InnoDB文件加载到内存中——在内存中访问文件时的速度要比在硬盘中访问时快的多。     2. 不惜一切代价避免使用Swap交换分区 – 交换时是从硬盘读取的,它的速度很慢。     3. 使用电池供电的RAM(注:RAM即随机存储器)。     4. 使用高级的RAID(注:Redundant Arrays of Inexpensive Disks,即磁盘阵列</div>
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                                    <div> 题目链接:zoj 3829 Known Notation 
 题目大意:给定一个不完整的后缀表达式,要求有2种不同操作,用尽量少的操作使得表达式完整。 
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