ShardingSphere-Proxy 分库分表简单示例

最新推荐文章于 2025-11-06 14:33:12 发布

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最新推荐文章于 2025-11-06 14:33:12 发布 · 974 阅读

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#Java #ShardingSphere #MySQL #分库分表

本文提供了一个使用ShardingSphere-Proxy进行分库分表的简单示例。通过设置MySQL环境和配置ShardingSphere-Proxy 5.0.0 alpha，将订单表水平拆分为2个库，每库16张表。然后，介绍了如何在SpringBoot Mybatis应用中进行相关配置，包括数据库连接配置和测试类代码。

ShardingSphere-Proxy 分库分表简单示例

简要说明

对一张简单的订单表数据表进行水平分库分表，拆分2个库，每个库16张表并在新结构在演示常见的增删改查操作

环境配置

设置MySQL

使用docker设置mysql

# 启动两个mysql
docker run --name mysql11 -p 3311:3306 -e MYSQL_ROOT_PASSWORD=root -e MYSQL_ROOT_HOST=% -d mysql:latest
docker run --name mysql12 -p 3312:3306 -e MYSQL_ROOT_PASSWORD=root -e MYSQL_ROOT_HOST=% -d mysql:latest

# 在11上创建数据库demo_ds_0
docker exec -ti mysql11 mysql -u root -p
create database demo_ds_0;

# 在12上创建数据库demo_ds_1
docker exec -ti mysql11 mysql -u root -p
create database demo_ds_1;

ShardingSphere-Proxy 5.0.0 alpha 设置

docker一直不能设置成功，有点奇怪，这里就直接下载使用了

1.下载ShardingSphere-Proxy，下载完成后放到自己相应的目录下
2.下载MySQL-connect.jar,下载完成后将jar文件放到Sharding根目录的lib目录下

下面需要配置两个文件：server.yaml、config-sharding.yaml,示例如下（配置都有默认示例说明的，相应进行修改即可）

server.yaml

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

######################################################################################################
# 
# If you want to configure governance, authorization and proxy properties, please refer to this file.
# 
######################################################################################################
#
#governance:
#  name: governance_ds
#  registryCenter:
#    type: ZooKeeper
#    serverLists: localhost:2181
#    props:
#      retryIntervalMilliseconds: 500
#      timeToLiveSeconds: 60
#      maxRetries: 3
#      operationTimeoutMilliseconds: 500
#  overwrite: false

authentication:
  users:
    root:
      password: root
    sharding:
      password: sharding
      authorizedSchemas: sharding_db

props:
  max-connections-size-per-query: 1
  acceptor-size: 16  # The default value is available processors count * 2.
  executor-size: 16  # Infinite by default.
  proxy-frontend-flush-threshold: 128  # The default value is 128.
    # LOCAL: Proxy will run with LOCAL transaction.
    # XA: Proxy will run with XA transaction.
    # BASE: Proxy will run with B.A.S.E transaction.
  proxy-transaction-type: LOCAL
  proxy-opentracing-enabled