ElementUI之登陆+注册-＞饿了吗完成用户登录界面搭建，axios之get请求，axios之post请求，跨域,注册界面

一、 docker方式

docker pull postgres:16.0

docker rm -f lhrpg16

docker run --name lhrpg16 -h lhrpg16 -d -p 54329:5432 -e POSTGRES_PASSWORD=lhr -e TZ=Asia/Shanghai postgres:16.0

docker exec -it lhrpg16 bash

docker exec -it lhrpg16 psql -U postgres -d postgres

select * from pg_tables;
select version();

二、yum方式

dnf install -y cmake make gcc zlib gcc-c++ perl readline readline-devel zlib zlib-devel \
    perl python36 tcl openssl ncurses-devel openldap pam  perl-IPC-Run libicu-devel

dnf install epel-release -y

dnf --enablerepo=powertools install perl-IPC-Run -y

# 自2023年8月起，PostgreSQL RPM repo停止向PostgreSQL RPM repo添加新包，**包括PostgreSQL 16**.我们将维护旧的主要版本，直到每个主要版本被PostgreSQL项目终止。请访问这里每个主要版本的最新发布日期。https://download.postgresql.org/pub/repos/yum/16/redhat/rhel-8-x86_64/

wget https://download.postgresql.org/pub/repos/yum/16/redhat/rhel-8-x86_64/postgresql16-16.0-1PGDG.rhel8.x86_64.rpm
 
wget https://download.postgresql.org/pub/repos/yum/16/redhat/rhel-8-x86_64/postgresql16-server-16.0-1PGDG.rhel8.x86_64.rpm

wget https://download.postgresql.org/pub/repos/yum/16/redhat/rhel-8-x86_64/postgresql16-contrib-16.0-1PGDG.rhel8.x86_64.rpm

wget https://download.postgresql.org/pub/repos/yum/16/redhat/rhel-8-x86_64/postgis34_16-devel-3.4.0-1PGDG.rhel8.x86_64.rpm
 
wget https://download.postgresql.org/pub/repos/yum/16/redhat/rhel-8-x86_64/postgresql16-libs-16.0-1PGDG.rhel8.x86_64.rpm

# 安装

dnf localinstall postgresql16-*

# （建议安装）安装开发包，若后期需要编译一些插件，例如pg_recovery、pg_dirtyread等都需要该包

dnf localinstall postgresql16-devel-16.0-1PGDG.rhel8.x86_64.rpm

rpm -aq| grep postgres

echo "export PATH=/usr/pgsql-16/bin:$PATH" >> /etc/profile

# 初始化

/usr/pgsql-16/bin/postgresql-16-setup initdb

systemctl enable postgresql-16 --now

# 本地登陆

su - postgres

psql

# 安装插件

create extension pageinspect;

create extension pg_stat_statements;

select * from pg_extension;

select * from pg_available_extensions order by name;

# 修改密码

alter user postgres with  password 'lhr'; 或 \password

select * from pg_tables;

select version();

# 配置允许远程登陆

cat >> /var/lib/pgsql/16/data/postgresql.conf <<"EOF"
listen_addresses = '*'
port=5432
unix_socket_directories='/var/lib/pgsql/16/data'
logging_collector = on
log_directory = 'pg_log'
log_filename = 'postgresql-%a.log'
log_truncate_on_rotation = on
EOF

cat  << EOF > /var/lib/pgsql/16/data/pg_hba.conf
 # TYPE  DATABASE    USER    ADDRESS       METHOD
 local     all       all                    trust
 host      all       all    ::1/128         trust
 host      all       all   127.0.0.1/32     trust
 host      all       all    0.0.0.0/0        md5
 host   replication  all    0.0.0.0/0        md5
 EOF

systemctl restart postgresql-16

psql -U postgres -h 192.168.100.100 -d postgres -p54327

# 从Postgresql 9.2开始，还可以使用URI格式进行远程连接：psql postgresql://myuser:mypasswd@myhost:5432/mydb

psql postgresql://postgres:lhr@192.168.100.100:54327/postgres

mkdir -p /home/postgres

chown postgres.postgres /home/

sed -i 's|/var/lib/pgsql|/home/postgres|' /etc/passwd

echo "lhr" |passwd --stdin postgres

cat > /home/postgres/.bash_profile <<"EOF"
export PGPORT=54327
export PGHOME=/usr/pgsql-16
export PGDATA=/var/lib/pgsql/16/data
export PATH=$PGHOME/bin:$PATH
export MANPATH=$PGHOME/share/man:$MANPATH
export LANG=en_US.UTF-8
export DATE='date +"%Y%m%d%H%M"'
export LD_LIBRARY_PATH=$PGHOME/lib:$LD_LIBRARY_PATH
export PGHOST=$PGDATA
export PGUSER=postgres
export PGPASSWORD=lhr
export PGDATABASE=postgres
export PS1="[\u@\h \W]\$ "
alias ll='ls -l'
EOF


chown postgres.postgres /home/postgres/.bash_profile

三、编译方式

随手一记：生成密码的密文sha256加密

echo -n "Enter Password: " && head -1 </dev/stdin | tr -d '\n' | sha256sum | cut -d" " -f1