zoukankan      html  css  js  c++  java
  • linux安装jdk

    cd   /usr/local
    
    mkdir  java
    
    -- 上传
    rz   jdk-8u161-linux-x64.tar.gz
    
    -- 解压
    tar  -zxvf    jdk-8u161-linux-x64.tar.gz

    修改环境变量

    vim /etc/profile

    添加以下内容

    export JAVA_HOME=/usr/local/java/jdk1.8.0_161
    export JRE_HOME=${JAVA_HOME}/jre
    export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$CLASSPATH
    export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
    export PATH=$PATH:${JAVA_PATH}

    保存后退出(退出键   :wq!)

    通过命令source /etc/profile让profile文件立即生效

    验证

    javac  
    
    Usage: javac <options> <source files>
    where possible options include:
      -g                         Generate all debugging info
      -g:none                    Generate no debugging info
      -g:{lines,vars,source}     Generate only some debugging info
      -nowarn                    Generate no warnings
      -verbose                   Output messages about what the compiler is doing
      -deprecation               Output source locations where deprecated APIs are used
      -classpath <path>          Specify where to find user class files and annotation processors
      -cp <path>                 Specify where to find user class files and annotation processors
      -sourcepath <path>         Specify where to find input source files
      -bootclasspath <path>      Override location of bootstrap class files
      -extdirs <dirs>            Override location of installed extensions
      -endorseddirs <dirs>       Override location of endorsed standards path
      -proc:{none,only}          Control whether annotation processing and/or compilation is done.
      -processor <class1>[,<class2>,<class3>...] Names of the annotation processors to run; bypasses default discovery process
      -processorpath <path>      Specify where to find annotation processors
      -parameters                Generate metadata for reflection on method parameters
      -d <directory>             Specify where to place generated class files
      -s <directory>             Specify where to place generated source files
      -h <directory>             Specify where to place generated native header files
      -implicit:{none,class}     Specify whether or not to generate class files for implicitly referenced files
      -encoding <encoding>       Specify character encoding used by source files
      -source <release>          Provide source compatibility with specified release
      -target <release>          Generate class files for specific VM version
      -profile <profile>         Check that API used is available in the specified profile
      -version                   Version information
      -help                      Print a synopsis of standard options
      -Akey[=value]              Options to pass to annotation processors
      -X                         Print a synopsis of nonstandard options
      -J<flag>                   Pass <flag> directly to the runtime system
      -Werror                    Terminate compilation if warnings occur
      @<filename>                Read options and filenames from file
    java -version
    java version "1.8.0_161"
    Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
    Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)
  • 相关阅读:
    ASP.NET MVC 重点教程一周年版 第二回 UrlRouting
    ASP.NET MVC 重点教程一周年版 第三回 Controller与View
    DynamicData for Asp.net Mvc留言本实例 下篇 更新
    Asp.net MVC视频教程 18 单选与复选框
    使用ASP.NET MVC Futures 中的异步Action
    ASP.NET MVC RC 升级要注意的几点
    ATL、MFC、WTL CString 的今生前世
    msvcprt.lib(MSVCP90.dll) : error LNK2005:已经在libcpmtd.lib(xmutex.obj) 中定义
    关于Windows内存的一些参考文章
    Windows访问令牌相关使用方法
  • 原文地址:https://www.cnblogs.com/yrjns/p/12468113.html
Copyright © 2011-2022 走看看