RuoYi-Cloud 进阶篇_03（ Seata 高可用集群与 NacosConfig配置中心整合）

矫情吗；* 2022-09-10 04:23 490阅读 0赞

### 文章目录 ###

*   *   *   *   *   *  1. 创建文件config.txt
                     *  2. 创建nacos-config.sh
                     *  3. 配置导入nacos配置中心
                     *  4. 配置验证

###### 1. 创建文件config.txt ######

在seata的安装文件夹下创建文件config.txt

[root@node2 ~]# cd /app/seata/seata-server-1.4.2/
    [root@node2 seata-server-1.4.2]# vim config.txt

> 说明：  
> 第一行：这里order-service值得是订单模块的服务  
> 从第二行开始：下面是数据库信息根据自己的实际情况配置  
> 注意点：不能添加中文注释

添加以下内容：

service.vgroupMapping.order-service=default
    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/ry-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][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 ][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@node2 seata-server-1.4.2]# cd conf
    [root@node2 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
    do
      case $opt in
      h)
        host=$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
    done
    
    if [ -z ${host} ]; then
        host=localhost
    fi
    if [ -z ${port} ]; then
        port=8848
    fi
    if [ -z ${group} ]; then
        group="SEATA_GROUP"
    fi
    if [ -z ${tenant} ]; then
        tenant=""
    fi
    if [ -z ${username} ]; then
        username=""
    fi
    if [ -z ${password} ]; then
        password=""
    fi
    
    nacosAddr=$host:$port
    contentType="content-type:application/json;charset=UTF-8"
    
    echo "set nacosAddr=$nacosAddr"
    echo "set group=$group"
    
    urlencode() { 
      length="${ #1}"
      i=0
      while [ $length -gt $i ]; do
        char="${1:$i:1}"
        case $char in
        [a-zA-Z0-9.~_-]) printf $char ;;
        *) printf '%%%02X' "'$char" ;;
        esac
        i=`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/null
      if [ -z $(cat "${tempLog}") ]; then
        echo " Please check the cluster status. "
        exit 1
      fi
      if [ "$(cat "${tempLog}")" == "true" ]; then
        echo "Set $1=$2 successfully "
      else
        echo "Set $1=$2 failure "
        failCount=`expr $failCount + 1`
      fi
    }
    
    count=0
    for line in $(cat $(dirname "$PWD")/config.txt | sed s/[[:space:]]//g); do
        count=`expr $count + 1`
    	key=${line%%=*}
        value=${line#*=}
    	addConfig "${key}" "${value}"
    done
    
    echo "========================================================================="
    echo " Complete initialization parameters, total-count:$count , failure-count:$failCount "
    echo "========================================================================="
    
    if [ ${failCount} -eq 0 ]; then
    	echo " Init nacos config finished, please start seata-server. "
    else
    	echo " 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

sh nacos-config.sh -h 127.0.0.1

*  \-h后面是nacos配置中心的地址  
    操作记录：

[root@node2 conf]# sh nacos-config.sh -h 127.0.0.1
    set 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/ry-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@node2 conf]#

![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAZ2JsZnk_size_20_color_FFFFFF_t_70_g_se_x_16]

###### 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  
![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAZ2JsZnk_size_20_color_FFFFFF_t_70_g_se_x_16 1]  
![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAZ2JsZnk_size_20_color_FFFFFF_t_70_g_se_x_16 2]

[https_github.com_seata_seata_blob_develop_script_config-center_config.txt]: https://github.com/seata/seata/blob/develop/script/config-center/config.txt
[https_github.com_seata_seata_blob_develop_script_config-center_nacos_nacos-config.sh]: https://github.com/seata/seata/blob/develop/script/config-center/nacos/nacos-config.sh
[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAZ2JsZnk_size_20_color_FFFFFF_t_70_g_se_x_16]: /images/20220829/3337fddac12d403094d6d0bec7fc1019.png
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