腾讯云java环境搭建完整流程

  1. 注册登录腾讯云,下载putty连接。

  2. jdk安装

    输入
    yum search jdk
    小贴士:yum可以理解为一个联网的软件管家,详见

    Loaded plugins: fastestmirror, security
    Loading mirror speeds from cached hostfile
    =============================== N/S Matched: jdk ===============================
    copy-jdk-configs.noarch : JDKs configuration files copier
    java-1.6.0-openjdk.x86_64 : OpenJDK Runtime Environment
    java-1.6.0-openjdk-demo.x86_64 : OpenJDK Demos
    java-1.6.0-openjdk-devel.x86_64 : OpenJDK Development Environment
    java-1.6.0-openjdk-javadoc.x86_64 : OpenJDK API Documentation
    java-1.6.0-openjdk-src.x86_64 : OpenJDK Source Bundle
    java-1.7.0-openjdk.x86_64 : OpenJDK Runtime Environment
    java-1.7.0-openjdk-demo.x86_64 : OpenJDK Demos
    java-1.7.0-openjdk-devel.x86_64 : OpenJDK Development Environment
    java-1.7.0-openjdk-javadoc.noarch : OpenJDK API Documentation
    java-1.7.0-openjdk-src.x86_64 : OpenJDK Source Bundle
    java-1.8.0-openjdk-debug.x86_64 : OpenJDK Runtime Environment with full debug on
    java-1.8.0-openjdk-demo.x86_64 : OpenJDK Demos
    java-1.8.0-openjdk-demo-debug.x86_64 : OpenJDK Demos with full debug on
    java-1.8.0-openjdk-devel.x86_64 : OpenJDK Development Environment
    java-1.8.0-openjdk-devel-debug.x86_64 : OpenJDK Development Environment with
                                          : full debug on
    java-1.8.0-openjdk-headless.x86_64 : OpenJDK Runtime Environment
    java-1.8.0-openjdk-headless-debug.x86_64 : OpenJDK Runtime Environment with full
                                             : debug on
    java-1.8.0-openjdk-javadoc.noarch : OpenJDK API Documentation
    java-1.8.0-openjdk-javadoc-debug.noarch : OpenJDK API Documentation for packages
                                            : with debug on
    java-1.8.0-openjdk-src.x86_64 : OpenJDK Source Bundle
    java-1.8.0-openjdk-src-debug.x86_64 : OpenJDK Source Bundle for packages with
                                        : debug on
    ldapjdk-javadoc.x86_64 : Javadoc for ldapjdk
    icedtea-web.x86_64 : Additional Java components for OpenJDK - Java browser
                       : plug-in and Web Start implementation
    ldapjdk.x86_64 : The Mozilla LDAP Java SDK
    
      Name and summary matches only, use "search all" for everything.
    
    这样就会显示出所有包括jdk的文件
    输入
  3. yum install -y java-1.8.0-openjdk*
    小贴士:-y意思是所有都选择yes
    这样就会安装所有jdk1.8相关的应用。
    安装完成之后
    javac -version
    查看jdk版本
  4. 安装mysql

    大雾~~~之前的方法安装的mysql是5.1的。。。。。现在说一下5.7的安装方法

    https://repo.mysql.com//mysql57-community-release-el6-11.noarch.rpm
    先去下载rpm文件,传到服务器上,然后
    rpm -Uvh mysql57-community-release-el6-11.noarch.rpm
    
    yum install -y mysql-community-server
    完成之后,启动mysql
    service mysqld start
    首次登陆密码在
    /var/log/mysqld.log
    搜一下password
    A temporary password is generated for root@localhost: A<0Igo=wc8kk
    A<0Igo=wc8kk就是密码
    登陆mysql
    mysql -u root -p
    再输入密码就能登陆mysql了,然后需要修改密码,

    如果密码设置太简单出现以下的提示

    腾讯云java环境搭建完整流程_第1张图片
     

    如何解决ERROR 1819 (HY000): Your password does not satisfy the current policy requirements呢? 这里直接提供解决方案文末有详细的说明

    必须修改两个全局参数:
    首先,修改validate_password_policy参数的值

    mysql> set global validate_password_policy=0;

    再修改密码的长度

    set global validate_password_length=1;

    执行修改密码就可以了

    ALTER USER 'root'@'localhost' IDENTIFIED BY 'root123';(ALTER等可以写成小写)

    授权其他机器登陆

    GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'yourpassword' WITH GRANT OPTION;

    附卸载mysql












  5. 同样使用yum
    yum -y install mysql mysql-deve mysql-server
    mysql-devel 开发用到的库以及包含文件
    mysql mysql 客户端
    mysql-server 数据库服务器
    安装完成之后,启动mysql
    service mysqld start
    然后设置密码
    /usr/bin/mysqladmin -u root password'111111'
    最后一步,允许别的计算机登陆mysql
    GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'yourpassword' WITH GRANT OPTION;
    这样你在本地就能用Navicat登陆mysql了





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