前言：之前我们只将nacos注册中心和seata进行了整合，如果需要实现完整的功能还需要与nacos的配置中心进行整合。

一、配置管理

1. 创建文件config.txt

在seata的安装文件夹下创建文件config.txt

[root@localhost ~]# cd /app/seata/
[root@localhost seata]# vim config.txt

添加一下内容：

# 这里order-service值得是订单模块的服务
service.vgroupMapping.order-service=default
# 下面是数据库信息根据自己的实际情况配置
store.mode=db
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.cj.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1/:3306/seata?useUnicode=true
store.db.user=root
store.db.password=123456
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000

上面的文件是精简后的部分，完整文件可在github中找到

https://github.com/seata/seata/blob/develop/script/config-center/config.txt

2. 创建nacos-config.sh

在conf/文件夹下下载文件https://github.com/seata/seata/blob/develop/script/config-center/nacos/nacos-config.sh 用于将上面的seata配置信息导入到nacos 执行下面的命令

[root@localhost seata]# cd conf/
[root@localhost conf]# vim nacos-config.sh
内容比较多，建议直接下载吧

#!/bin/sh
# Copyright 1999-2019 Seata.io Group.
#
# 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.while getopts ":h:p:g:t:u:w:" opt
docase $opt inh)host=$OPTARG;;p)port=$OPTARG;;g)group=$OPTARG;;t)tenant=$OPTARG;;u)username=$OPTARG;;w)password=$OPTARG;;?)echo " USAGE OPTION: $0 [-h host] [-p port] [-g group] [-t tenant] [-u username] [-w password] "exit 1;;esac
doneif [ -z ${host} ]; thenhost=localhost
fi
if [ -z ${port} ]; thenport=8848
fi
if [ -z ${group} ]; thengroup="SEATA_GROUP"
fi
if [ -z ${tenant} ]; thentenant=""
fi
if [ -z ${username} ]; thenusername=""
fi
if [ -z ${password} ]; thenpassword=""
finacosAddr=$host:$port
contentType="content-type:application/json;charset=UTF-8"echo "set nacosAddr=$nacosAddr"
echo "set group=$group"urlencode() {length="${#1}"i=0while [ $length -gt $i ]; dochar="${1:$i:1}"case $char in[a-zA-Z0-9.~_-]) printf $char ;;*) printf '%%%02X' "'$char" ;;esaci=`expr $i + 1`done
}failCount=0
tempLog=$(mktemp -u)
function addConfig() {dataId=`urlencode $1`content=`urlencode $2`curl -X POST -H "${contentType}" "http://$nacosAddr/nacos/v1/cs/configs?dataId=$dataId&group=$group&content=$content&tenant=$tenant&username=$username&password=$password" >"${tempLog}" 2>/dev/nullif [ -z $(cat "${tempLog}") ]; thenecho " Please check the cluster status. "exit 1fiif [ "$(cat "${tempLog}")" == "true" ]; thenecho "Set $1=$2 successfully "elseecho "Set $1=$2 failure "failCount=`expr $failCount + 1`fi
}count=0
for line in $(cat $(dirname "$PWD")/config.txt | sed s/[[:space:]]//g); docount=`expr $count + 1`key=${line%%=*}value=${line#*=}addConfig "${key}" "${value}"
doneecho "========================================================================="
echo " Complete initialization parameters,  total-count:$count ,  failure-count:$failCount "
echo "========================================================================="if [ ${failCount} -eq 0 ]; thenecho " Init nacos config finished, please start seata-server. "
elseecho " init nacos config fail. "
fi

3. 配置导入nacos配置中心

将seata配置信息导入到nacos config配置中心

[root@localhost conf]# sh nacos-config.sh -h 127.0.0.1set nacosAddr=127.0.0.1:8848
set group=SEATA_GROUP
Set service.vgroupMapping.order-service=default successfully 
Set store.mode=db successfully 
Set store.db.datasource=druid successfully 
Set store.db.dbType=mysql successfully 
Set store.db.driverClassName=com.mysql.cj.jdbc.Driver successfully 
Set store.db.url=jdbc:mysql://127.0.0.1/:3306/seata?useUnicode=true successfully 
Set store.db.user=root successfully 
Set store.db.password=123456 successfully 
Set store.db.minConn=5 successfully 
Set store.db.maxConn=30 successfully 
Set store.db.globalTable=global_table successfully 
Set store.db.branchTable=branch_table successfully 
Set store.db.queryLimit=100 successfully 
Set store.db.lockTable=lock_table successfully 
Set store.db.maxWait=5000 successfully 
=========================================================================Complete initialization parameters,  total-count:15 ,  failure-count:0 
=========================================================================Init nacos config finished, please start seata-server. 
[root@localhost conf]# 

-h后面是nacos配置中心的地址

4. 配置验证

执行完成后登录到nacos 查看配置中心的数据是否导入完毕，如图所示