腾讯云java环境搭建

腾讯云java环境搭建"/>

腾讯云java环境搭建

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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

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=============================== 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

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

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

//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.rpmyum 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passwordA temporary password is generated for root@localhost: A<0Igo=wc8kkA<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

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

同样使用yum

yum -y install mysql mysql-deve mysql-servermysql-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