1、配置Java环境变量：略

2、配置mycat环境变量：

新建变量“MYCAT_HOME”，值“E:\服务器\mycat”；在path中添加“;%MYCAT_HOME%\bin;”

3、修改mycat\conf\wrapper.conf

wrapper.java.command=/usr/local/jdk1.8.0_101/bin/java

4、server.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- - - Licensed 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. -->
<!DOCTYPE mycat:server SYSTEM "server.dtd">
<mycat:server xmlns:mycat="http://io.mycat/">
<system>
<property name="useSqlStat">0</property>  <!-- 1为开启实时统计、0为关闭 -->
<property name="useGlobleTableCheck">0</property>  <!-- 1为开启全加班一致性检测、0为关闭 -->
<property name="sequnceHandlerType">2</property>
      <!--  <property name="useCompression">1</property>--> <!--1为开启mysql压缩协议-->
        <!--  <property name="fakeMySQLVersion">5.6.20</property>--> <!--设置模拟的MySQL版本号-->
<!-- <property name="processorBufferChunk">40960</property> -->
<!-- 
<property name="processors">1</property> 
<property name="processorExecutor">32</property> 
-->
<!--默认为type 0: DirectByteBufferPool | type 1 ByteBufferArena-->
<property name="processorBufferPoolType">0</property>
<!--默认是65535 64K 用于sql解析时最大文本长度 -->
<!--<property name="maxStringLiteralLength">65535</property>-->
<!--<property name="sequnceHandlerType">0</property>-->
<!--<property name="backSocketNoDelay">1</property>-->
<!--<property name="frontSocketNoDelay">1</property>-->
<!--<property name="processorExecutor">16</property>-->
<!--
<property name="serverPort">8066</property> <property name="managerPort">9066</property> 
<property name="idleTimeout">300000</property> <property name="bindIp">0.0.0.0</property> 
<property name="frontWriteQueueSize">4096</property> <property name="processors">32</property> -->
<!--分布式事务开关，0为不过滤分布式事务，1为过滤分布式事务（如果分布式事务内只涉及全局表，则不过滤），2为不过滤分布式事务,但是记录分布式事务日志-->
<property name="handleDistributedTransactions">0</property>
<!--
off heap for merge/order/group/limit      1开启   0关闭
-->
<property name="useOffHeapForMerge">1</property>
<!--
单位为m
-->
<property name="memoryPageSize">1m</property>
<!--
单位为k
-->
<property name="spillsFileBufferSize">1k</property>
<property name="useStreamOutput">0</property>
<!--
单位为m
-->
<property name="systemReserveMemorySize">384m</property>
<!--是否采用zookeeper协调切换  -->
<property name="useZKSwitch">true</property>
</system>
<!-- 全局SQL防火墙设置 -->
<!-- 
<firewall> 
  <whitehost>
     <host host="127.0.0.1" user="mycat"/>
     <host host="127.0.0.2" user="mycat"/>
  </whitehost>
       <blacklist check="false">
       </blacklist>
</firewall>
-->
<user name="sunyu">
<property name="password">123</property>
<property name="schemas">TESTDB</property>
<!-- 表级 DML 权限设置 -->
<!--
<privileges check="false">
<schema name="TESTDB" dml="0110" >
<table name="tb01" dml="0000"></table>
<table name="tb02" dml="1111"></table>
</schema>
</privileges>
-->
</user>
<user name="aaa">
<property name="password">123</property>
<property name="schemas">TESTDB</property>
<property name="readOnly">true</property>
</user>
</mycat:server>

5、schema.xml

<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
<schema name="TESTDB" checkSQLschema="false" sqlMaxLimit="100">
<table name="employee" primaryKey="ID" dataNode="dn1,dn2"
  rule="sharding-by-intfile" />
<table name="renyuan" primaryKey="ID" dataNode="dn1,dn2"
  rule="sharding-by-intfile" />
  <table name="gongzi" primaryKey="ID" dataNode="dn1,dn2"
  rule="sharding-by-intfile" />
</schema>
<dataNode name="dn1" dataHost="ms1" database="test" />
<dataNode name="dn2" dataHost="ms2" database="test" />
<dataHost name="ms1" maxCon="1000" minCon="10" balance="0"
 writeType="0" dbType="mysql" dbDriver="native" switchType="1"  slaveThreshold="100">
<heartbeat>select user()</heartbeat>
<!-- can have multi write hosts -->
<writeHost host="hostM1" url="localhost:3306" user="sunyu"
  password="123">
<!-- can have multi read hosts -->
<readHost host="hostS2" url="localhost:3306" user="sunyu" password="123" />
</writeHost>
<writeHost host="hostS1" url="localhost:3306" user="sunyu"
  password="123" />
<!-- <writeHost host="hostM2" url="127.0.0.1:3316" user="root" password="123456"/> -->
</dataHost>
<dataHost name="ms2" maxCon="1000" minCon="10" balance="0"
 writeType="0" dbType="mysql" dbDriver="native" switchType="1"  slaveThreshold="100">
<heartbeat>select user()</heartbeat>
<!-- can have multi write hosts -->
<writeHost host="hostM1" url="192.168.1.100:3306" user="a"
  password="123">
<!-- can have multi read hosts -->
<readHost host="hostS2" url="192.168.1.100:3306" user="a" password="123" />
</writeHost>
<writeHost host="hostS1" url="192.168.1.100:3306" user="a"
  password="123" />
<!-- <writeHost host="hostM2" url="127.0.0.1:3316" user="root" password="123456"/> -->
</dataHost>
</mycat:schema>
6、启动mycat

注：MyCat服务器可以搭建多种数据库分布