shardingsphere学习

准备3个ubuntu虚拟机(此处用vagrant)

vagrant init envimation/ubuntu-xenial-docker

修改Vagrantfile
配置网络模式和Ip(此处是10-12)
config.vm.network "public_network", ip:"192.168.1.10"

配置内存大小,此处2G
config.vm.provider "virtualbox" do |vb|
vb.memory = "2048" 
end

在10中
下载java8 jdk

sudo mkdir /opt/java
sudo chown vagrant  /opt/java
tar zxf jdk-8u191-linux-x64.tar.gz
sudo cp -r ~/jdk1.8.0_191/*  /opt/java
echo 'export JAVA_HOME=/opt/java/;export PATH=${JAVA_HOME}/bin:${PATH}' >> ~/.bashrc
source ~/.bashrc
java -version

wget https://github.com/apache/incubator-shardingsphere-doc/raw/master/dist/sharding-proxy-3.0.0.M1.tar.gz
tar zxf sharding-proxy-3.0.0.M1.tar.gz
cd sharding-proxy-3.0.0.M1

编辑conf/config.yaml

dataSources:
  ds_0:
    url: jdbc:mysql://192.168.1.11:3306/test
    username: root
    password: 密码
  ds_1:
    url: jdbc:mysql://192.168.1.12:3306/test
    username: root
    password: 密码

shardingRule:
  tables:
    t_order:
      actualDataNodes: ds_${0..1}.t_order${0..1}
      tableStrategy:
        inline:
          shardingColumn: order_id
          algorithmExpression: t_order${order_id % 2}
      keyGeneratorColumnName: order_id
  defaultDatabaseStrategy:
    inline:
      shardingColumn: user_id
      algorithmExpression: ds_${user_id % 2}
  defaultTableStrategy:
    none:
  defaultKeyGeneratorClassName: io.shardingsphere.core.keygen.DefaultKeyGenerator

  props:
    sql.show: true

在11和12中

sudo apt-get update
sudo apt-get install mysql-server
mysql -uroot -p密码 
create user root identified by '密码'
grant all privileges on *.* to 'root'@‘%‘;
flush privileges
create database test;
create table t_order0(order_id bigint not null auto_increment primary key, user_id bigint not null default 0, name varchar(100) not null default "");
create table t_order1(order_id bigint not null auto_increment primary key, user_id bigint not null default 0, name varchar(100) not null default "");

编辑/etc/mysql/mysql.conf.d/mysqld.cnf

bind = 0.0.0.0

重启

sudo service mysql restart

在10 中

./bin/start.sh

验证

mysql -uroot -p密码 -P3307
insert into t_order(order_id,user_id,name) values(1,1,"test");

按照分库分表规则,应该结果在12的t_order1表,进入验证