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错误信息如下

Job for postfix.service failed because the control process exited with error code. See "systemctl status postfix.service" and "journalctl -xe" for details.

LSB Version:    :....(太长了)
Distributor ID: CentOS
Description:    CentOS Linux release 8.2.2004 (Core) 
Release:        8.2.2004
Codename:       Core

location / { // …..省略部分代码
   if (!-e $request_filename) {
    rewrite  ^(.*)$  /index.php?s=/$1  last;
    }
}

server {
    listen       80;
    server_name  mydomain.com;
    access_log /data/logs/access_nginx.log combined;
    root /data/www/test_sdk/public;
    index  index.html index.htm index.php;    
    location / {
        try_files $uri @rewrite;
    }
    
    location /nginx_status {
      stub_status on;
      access_log off;
      allow 127.0.0.1;
      deny all;
    }

    location @rewrite {
        set $static 0;
        if  ($uri ~ \.(css|js|jpg|jpeg|png|gif|ico|woff|eot|svg|css\.map|min\.map)$) {
            set $static 1;
        }
        if ($static = 0) {
            rewrite ^/index.php(.*)$ /index.php?s=/$1 last;
        }
    }
    location ~ \.php/ {
       if ($request_uri ~ ^(.+\.php)(/.+?)($|\?)) { }
       #fastcgi_pass remote_php_ip:9000;
       fastcgi_pass unix:/dev/shm/php-cgi.sock;
       include fastcgi_params;
       fastcgi_param SCRIPT_NAME     $1;
       fastcgi_param PATH_INFO       $2;
       fastcgi_param SCRIPT_FILENAME $document_root$1;
    }
    location ~ \.php$ {
        #fastcgi_pass remote_php_ip:9000;
        fastcgi_pass unix:/dev/shm/php-cgi.sock;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|flv|mp4|ico)$ {
      expires 30d;
      access_log off;
    }
    location ~ .*\.(js|css)?$ {
      expires 7d;
      access_log off;
    }
    location ~ ^/(\.user.ini|\.ht|\.git|\.svn|\.project|LICENSE|README.md) {
      deny all;
    }
}

===参考链接===

https://www.kancloud.cn/manual/thinkphp6_0/1037488

https://www.seasidecrab.com/tp/487.html

http://www.thinkphp.cn/topic/34380.html

问题：

springboot连接我用docker启动的es服务时报错，None of the configured nodes are available

解决方案：

1、先通过http://localhost:9200/查看参数cluster_name 和 springboot里配置的参数cluster_name是否一致，如果不一致，要修改成一致

2、如果通过修改cluster_name参数仍然无法解决，这时候就要看下Spring Data Elasticsearch 依赖 和 Elasticsearch的版本对应关系了

1、微信 macOS 客户端增强 Tweak 动态库

2、微信简易版助手，各种花里胡哨的功能

1、进入 src/main/resources 目录下，新建banner.txt 文件

2、进入字母转字符串，字母转字符串 ,制作一个你想要的，然后复制到banner.txt文件中即可，再次启动就可以看到了

原因:启动时不需要数据源加载，但加载了数据源，数据源获取失败，异常报错，启动失败。

在启动类的@SpringBootApplication加上以下代码

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
public class SpringbootEsApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootEsApplication.class, args);
    }

}

===两种安装方式===

1、use elasticsearch-plugin to install

docker exec -it elasticsearch /bin/sh
cd bin/
elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.1.1/elasticsearch-analysis-ik-7.1.1.zip

#执行完毕后 
elasticsearch-plugin list #查看
elasticsearch-plugin remove analysis-ik #删除


2、download 插件
docker exec -it elasticsearch /bin/sh
cd plugins && mkdir ik
wget https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.1.1/elasticsearch-analysis-ik-7.1.1.zip
unzip elasticsearch-analysis-ik-7.1.1.zip


======安装完成后重启服务======


====增加分词====

docker exec -it elasticsearch /bin/sh
cd config/analysis-ik/
echo '济南彭于晏' >> main.dic

======安装完成后重启服务======

=====参考链接=====
https://github.com/medcl/elasticsearch-analysis-ik
https://github.com/yeszao/dnmp