参照链接：http://blog.csdn.net/bravemelon/article/details/64925499 centOS 7 下安装 Nginx yum -y groupinstall "Development Tools" yum -y install wget yum install gcc-c++ pcre pcre-devel zlib zlib-devel openssl openssl-devel yum -y install make gcc gcc-c++ gcc-g77 flex bison file libtool libtool-libs autoconf kernel-devel libjpeg libjpeg-devel libpng libpng-devel libpng10 libpng10-devel gd gd-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glib2 glib2-devel bzip2 bzip2-devel libevent libevent-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl openssl-devel gettext gettext-devel ncurses-devel gmp-devel pspell-devel unzip libcap lsof 1.直接下载.tar.gz安装包，地址：https://nginx.org/en/download.html 2.使用wget命令下载（推荐）。 wget -c https://nginx.org/download/nginx-1.10.1.tar.gz 解压 依然是直接命令： tar -zxvf nginx-1.10.1.tar.gz cd nginx-1.10.1 配置 1.使用默认配置(推荐) ./configure 2.自定义配置（不推荐） ./configure --prefix=/usr/local/nginx --conf-path=/usr/local/nginx/conf/nginx.conf --pid-path=/usr/local/nginx/conf/nginx.pid --lock-path=/var/lock/nginx.lock --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --with-http_gzip_static_module --http-client-body-temp-path=/var/temp/nginx/client --http-proxy-temp-path=/var/temp/nginx/proxy --http-fastcgi-temp-path=/var/temp/nginx/fastcgi --http-uwsgi-temp-path=/var/temp/nginx/uwsgi --http-scgi-temp-path=/var/temp/nginx/scgi 注：将临时文件目录指定为/var/temp/nginx，需要在/var下创建temp及nginx目录 编译安装 make make install 查找安装路径： whereis nginx 启动、停止nginx cd /usr/local/nginx/sbin/ ./nginx [root@ecs-24--jenjins sbin]# ./nginx nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use) nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use) nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use) nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use) nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use) nginx: [emerg] still could not bind() 问题描述：地址已被使用。可能nginx服务卡死了，导致端口占用，出现此错误。 解决： kill -9 3274 kill -9 3547 或者 killall -9 nginx 从新载入配置文件启动 /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf 二、修改配置文件 1、以下的配置文件没用的都删除 [root@ecs-24--jenjins conf]# cat nginx.conf #user nobody; worker_processes 1; #error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info; #pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; #access_log logs/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; #gzip on; server { listen 80; server_name www.jenjins_1.com; access_log logs/hongfa1.access.log main; location / { root /web/hongfa1; index index.html index.htm; } } server { listen 8084; server_name www.jenjins_2.com; access_log logs/hongfa3.access.log main; location / { root /web/hongfa3; index index.html index.htm; } } server { listen 8083; server_name www.jenjins_3.com; access_log logs/hongfa3.access.log main; location / { root /web/hongfa5; index index.html index.htm; } } } 2、没有搭建本地DNS，就配置hosts解析文件，都是一样的效果 [root@ecs-24--jenjins ~]# cat /etc/hosts 127.0.0.1 ecs-24--jenjins 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 127.0.0.1 localhost 117.78.44.225 www.jenjins_1.com 117.78.44.225 www.jenjins_2.com 117.78.44.225 www.jenjins_3.com 117.78.44.225 www.jenjins_4.com 3、配置html虚拟机文件 在根目录下创建这几个文件 /web/hongfa4/index.html hongfa4 222222222 /web/hongfa5/index.html <h1>www.hongfa2.com</h1> /web/hongfa1/index.html <h1>www.hongfa1.com</h> /web/hongfa3/index.html <h1>www.hongfa3.com</h1> 4、设置防火墙，把80端口映射到 8081,8082,8083 ，8080不能用，因为nginx首页已经占用，而80 端口要占一个， [root@localhost ]# /sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT 这句话非常重要，下面两句可以不执行，要多执行几次 [root@localhost ]# /etc/init.d/iptables save [root@localhost ]# /etc/init.d/iptables restart ---如果不行，用下面的。 [root@ecs-24--jenjins hongfa1]# systemctl restart firewalld 至此，主机已可访问虚拟机的nginx服务。 下面可以不执行，好像是，不能访问，执行试试，也可以写到iptables配置文件里 iptables -A INPUT -p tcp -m tcp --dport 8084 -j ACCEPT iptables -A INPUT -p tcp -m tcp --dport 8083 -j ACCEPT iptables -A INPUT -p tcp -m tcp --dport 8081 -j ACCEPT 5、开始访问 5.1 http://117.78.44.225:80 www.hongfa1.com 5.2 http://117.78.44.225:8081 hongfa4 222222222 5.3 http://117.78.44.225:8083 www.hongfa2.com 5.4 http://117.78.44.225:8084 www.hongfa3.com 三、搭建mysql http://www.jianshu.com/p/95a103add722 Centos 7.2 编译安装 MySQL 5.7.14 一、环境准备 1、查看系统版本 1 2 3 4 [root@lnmp ~]# cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) [root@lnmp ~]# uname -r 3.10.0-327.28.2.el7.x86_64 2、卸载系统自带的mysql/mariadb数据库及boost旧版本 复制代码 rpm -qa | grep mysql rpm -qa | grep mariadb rpm -e --nodeps boost-system-1.53.0-25.el7.x86_64 rpm -e --nodeps boost-thread-1.53.0-25.el7.x86_64 rpm -e mariadb-libs-5.5.47-1.el7_2.x86_64 rpm -e --nodeps mariadb-libs-5.5.47-1.el7_2.x86_64 boost官网http://www.boost.org/ ，yum -y install boost boost-devel boost-doc安装的是boost1.53版本 3、准备安装文件 复制代码 [root@lnmp mysql]# ll total 131096 drwx------ 10 501 games 4096 Aug 17 15:02 boost_1_59_0 -rw-r--r-- 1 root root 83709983 Aug 13 2015 boost_1_59_0.tar.gz drwxr-xr-x 37 7161 31415 4096 Aug 17 15:48 mysql-5.7.14 -rw-r--r-- 1 root root 50517329 Aug 17 14:38 mysql-5.7.14.tar.gz 说明：mysql5.7系列指定boost版本为boost_1_59_0。 资源下载地址： [root@snails ~]# wget https://sourceforge.net/projects/boost/files/boost/1.59.0/boost_1_59_0.tar.gz [root@snails ~]# wget http://cdn.mysql.com/Downloads/MySQL-5.7/mysql-5.7.13.tar.gz 4、依赖包安装 yum -y install make gcc-c++ cmake bison-devel ncurses-devel libaio libaio-devel perl-Data-Dumper net-tools 二、安装boost/mysql 1、安装boost 1 tar xvf boost_1_59_0 2 cd boost_1_59_0 3 ./bootstrap.sh --with-libraries=system,filesystem,log,thread --with-toolset=gcc 4 ./b2 toolset=gcc cxxflags="-std=c++11" 5 ./b2 install --prefix=/usr/local/boost #备注：上面红色字体的内容，参考如下配置；上面绿色字体内容代表使用c++11标准，编译的库要使用统一标准。不使用，去掉绿色字体内容。 复制代码 1 Component configuration: 2 - atomic : not building 3 - chrono : not building 4 - context : not building 5 - coroutine : not building 6 - date_time : not building 7 - exception : not building 8 - filesystem : building 9 - graph : not building 10 - graph_parallel : not building 11 - iostreams : not building 12 - locale : not building 13 - log : building 14 - math : not building 15 - mpi : not building 16 - program_options : not building 17 - python : not building 18 - random : not building 19 - regex : not building 20 - serialization : not building 21 - hongfa4nals : not building 22 - system : building 23 - test : not building 24 - thread : building 25 - timer : not building 26 - wave : not building #默认安装在/usr/local/lib目录下;头文件在/usr/local/include/boost目录下；install后面可以加参数 --prefix=/usr 来设置安装路径 #如果提示boost版本不对应则卸载boost安装对应版本boost 新建MySQL用户和用户组 [root@snails ~]# groupadd -r mysql && useradd -r -g mysql -s /sbin/nologin -M mysql 预编译 [root@snails ~]# tar -zxvf boost_1_59_0.tar.gz [root@snails data]# md5sum mysql-5.7.13.tar.gz 8fab75dbcafcd1374d07796bff88ae00 mysql-5.7.13.tar.gz [root@snails ~]# tar -zxvf mysql-5.7.13.tar.gz [root@snails data]# mkdir -p /data/mysql [root@snails data]# cd mysql-5.7.13 [root@snails data]# cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/data/mysql -DWITH_BOOST=../boost_1_59_0 -DSYSCONFDIR=/etc -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -DWITH_FEDERATED_STORAGE_ENGINE=1 -DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DWITH_MYISAM_STORAGE_ENGINE=1 -DENABLED_LOCAL_INFILE=1 -DENABLE_DTRACE=0 -DDEFAULT_CHARSET=utf8mb4 -DDEFAULT_COLLATION=utf8mb4_general_ci -DWITH_EMBEDDED_SERVER=1 编译安装 [root@snails mysql-5.7.13]# make -j `grep processor /proc/cpuinfo | wc -l` #编译很消耗系统资源，小内存可能编译通不过make install [root@snails mysql-5.7.13]# make install 三、配置mysql 1、创建用户，初始化数据库 groupadd mysql useradd -g mysql -s /sbin/nologin mysql 2、授权mysql数据库目录 chown -R mysql:mysql /usr/local/mysql 3、初始化mysql数据库 /usr/local/mysql/bin/mysqld --initialize --user=mysql --datadir=/usr/local/mysql/data/ 4、拷贝配置文件,修改配置文件 复制代码,按照下面的修改一下，修改之后无法加载配置文件，没关系，可能编译有问题 1 cp support-files/my-default.cnf /etc/my.cnf 2 [root@lnmp ~]# cat /etc/my.cnf 3 # For advice on how to change settings please see 4 # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html 5 # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the 6 # *** default location during install, and will be replaced if you 7 # *** upgrade to a newer version of MySQL. 8 [mysqld] 9 # Remove leading # and set to the amount of RAM for the most important data 10 # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. 11 # innodb_buffer_pool_size = 128M 12 character_set_server=utf8 13 init_connect='SET NAMES utf8' 14 #skip-grant-tables 15 # Remove leading # to turn on a very important data integrity option: logging 16 # changes to the binary log between backups. 17 # log_bin 18 # These are commonly set, remove the # and set as required. 19 # basedir = ..... 20 #datadir = /usr/local/mysql/data 21 # port = ..... 22 # server_id = ..... 23 # socket = ..... 24 # Remove leading # to set options mainly useful for reporting servers. 25 # The server defaults are faster for transactions and fast SELECTs. 26 # Adjust sizes as needed, experiment to find the optimal values. 27 # join_buffer_size = 128M 28 # sort_buffer_size = 2M 29 # read_rnd_buffer_size = 2M 30 sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 31 [client] 32 default-character-set=utf8 复制代码 root@ecs-24--jenjins www.test.com]# source /etc/my.cnf -------------没关系，没有影响 bash: [mysqld]: command not found... 5、拷贝启动文件，并授权 1、cp support-files/mysql.server /etc/init.d/mysqld 2、chmod 755 /etc/init.d/mysqld 6 、启动数据库 /etc/init.d/mysqld start 三、更改初始化生成的数据库密码 注：由于5.7版本会初始化设置密码，需要自己修改，跟之前的数据库版本更改方式不一样。 完整的更改MySQL密码的方式如下： vim /etc/my.cnf 加入skip-grant-tables，免密码登录数据库 [root@ecs-24--jenjins mysql-5.6.17]# cat /etc/my.cnf # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the # *** default location during install, and will be replaced if you # *** upgrade to a newer version of MySQL. [mysqld] # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M character_set_server=utf8 init_connect='SET NAMES utf8' skip-grant-tables -------------加上这句话，免密登陆，登陆完再删掉。 # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # These are commonly set, remove the # and set as required. # basedir = ..... # datadir = ..... # port = ..... # server_id = ..... # socket = ..... # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES [client] default-character-set=utf8 重启MySQL数据库 [root@lnmp ~]# /etc/init.d/mysqld restart ----------或者service mysqld start Shutting down MySQL.. SUCCESS! Starting MySQL. SUCCESS! 登录数据，修改密码即可，注5.7的password字段改为authentication_string MySQL update mysql.user set authentication_string=password('pwd123') where user='root' ; 改完后，注释掉my.cnf里面的skip-grant-tables 这一行，重启MySQL登录验证即可，然后就可以登录数据库进行一些简单的操作了。 [root@lnmp ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 3 Server version: 5.7.14 Source distribution Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.00 sec) mysql> use mysql Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> show tables; +---------------------------+ | Tables_in_mysql | +---------------------------+ | columns_priv | | db | | engine_cost | | event | | func | | general_log | | gtid_executed | | help_category | | help_keyword | | help_relation | | help_topic | | innodb_index_stats | | innodb_table_stats | | ndb_binlog_index | | plugin | | proc | | procs_priv | | proxies_priv | | server_cost | | servers | | slave_master_info | | slave_relay_log_info | | slave_worker_info | | slow_log | | tables_priv | | time_zone | | time_zone_leap_second | | time_zone_name | | time_zone_transition | | time_zone_transition_type | | user | +---------------------------+ 31 rows in set (0.00 sec) 四、授权所有用户登陆 mysql> grant all privileges on *.* to 'root'@'%' identified by 'pwd123'; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) 四、安装php7 Centos7 安装 PHP7最新版的详细教程 http://www.jb51.net/article/109228.htm 方法一、简单安装（通过yum） 1.安装epel-release rpm -ivh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm 2.安装PHP7的rpm源 rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm 3.安装PHP7 yum install php70w 放法二、编译安装 1.下载php7 wget -O php7.tar.gz http://cn2.php.net/get/php-7.1.1.tar.gz/from/this/mirror 2.解压php7 tar -xvf php7.tar.gz 3.进入php目录 cd php-7.1.1/ 4.安装依赖包 yum install epel-release gcc gcc-c++ libxml2 libxml2-devel openssl openssl-devel bzip2 bzip2-devel libcurl libcurl-devel libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel gmp gmp-devel libmcrypt libmcrypt-devel readline readline-devel libxslt libxslt-devel -y 5.编译配置（如果出现错误，基本都是上一步的依赖文件没有安装所致） 编译前做一下这些，防止出错 [root@ecs-24--jenjins ~]# cd /usr/local/ [root@ecs-24--jenjins local]# mkdir php [root@ecs-24--jenjins 42]# mount [root@ecs-24--jenjins 42]# umount /run/user/42/gvfs ./configure --prefix=/usr/local/php --with-config-file-path=/etc --enable-fpm --with-fpm-user=nginx --with-fpm-group=nginx --enable-inline-optimization --disable-debug --disable-rpath --enable-shared --enable-soap --with-libxml-dir --with-xmlrpc --with-openssl --with-mcrypt --with-mhash --with-pcre-regex --with-sqlite3 --with-zlib --enable-bcmath --with-iconv --with-bz2 --enable-calendar --with-curl --with-cdb --enable-dom --enable-exif --enable-fileinfo --enable-filter --with-pcre-dir --enable-ftp --with-gd --with-openssl-dir --with-jpeg-dir --with-png-dir --with-zlib-dir --with-freetype-dir --enable-gd-native-ttf --enable-gd-jis-conv --with-gettext --with-gmp --with-mhash --enable-json --enable-mbstring --enable-mbregex --enable-mbregex-backtrack --with-libmbfl --with-onig --enable-pdo --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-zlib-dir --with-pdo-sqlite --with-readline --enable-session --enable-shmop --enable-simplexml --enable-sockets --enable-sysvmsg --enable-sysvsem --enable-sysvshm --enable-wddx --with-libxml-dir --with-xsl --enable-zip --enable-mysqlnd-compression-support --with-pear --enable-opcache 6.正式安装 make && make install 编译最后出现错误：collect2: error: ld returned 1 exit status 解决： [root@ecs-24--jenjins php-7.1.1]# make ZEND_EXTRA_LIBS='-liconv' [root@ecs-24--jenjins php-7.1.1]# ln -s /usr/local/lib/libiconv.so.2 /usr/lib64/ [root@ecs-24--jenjins php-7.1.1]# make && make install 7.配置环境变量 vi /etc/profile 在末尾追加 export PATH=$PATH:/usr/local/php/bin 执行命令使得改动立即生效 source /etc/profile sed -i '$aexport PATH=$PATH:/usr/local/php/bin' /etc/profile && source /etc/profile 8.配置php-fpm cp /usr/local/php-7.1.1/php.ini-production /etc/php.ini cp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf 如果报错按照下面做 [root@ecs-24--jenjins ~]# find / -name php-fpm.conf.default find: ‘/run/user/42/gvfs’: Permission denied [root@ecs-24--jenjins 42]# mount 看最后一行 [root@ecs-24--jenjins 42]# umount /run/user/42/gvfs cp /usr/local/php/etc/php-fpm.d/www.conf.default /usr/local/php/etc/php-fpm.d/www.conf cp /usr/local/php-7.1.1/sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm chmod +x /etc/init.d/php-fpm 9.启动php-fpm /etc/init.d/php-fpm start 错误： Starting php-fpm [09-Aug-2014 00:45:40] ERROR: unable to bind listening socket for address '127.0.0.1:9000': Address already in use (98) [09-Aug-2014 00:45:40] ERROR: FPM initialization failed failed 解决方法： netstat -lntup | grep 9000 killall php-fpm [root@www ~]# service php-fpm start Starting php-fpm done 启动成功 下面的错误不用管，没有影响 [root@ecs-24--jenjins www.test.com]# source /etc/php.ini -----------------不用管，没有影响 bash: [PHP]: command not found... -bash: /etc/php.ini: line 2: syntax error near unexpected token `;;' -bash: /etc/php.ini: line 2: `;;;;;;;;;;;;;;;;;;;' 五、测试访问 [root@localhost ]# /sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT -----------------无法访问就执行这句话 root@localhost ]# /etc/init.d/iptables save [root@localhost ]# /etc/init.d/iptables restart [root@ecs-24--jenjins hongfa1]# systemctl restart firewalld 一、全部删了配置文件，赋值下面的。 root@ecs-24--jenjins html]# cat /usr/local/nginx/conf/nginx.conf user root root; worker_processes 1; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; server { listen 80; server_name www.test.com; charset utf-8; location / { root /var/www/www.test.com; index index.php index.html index.htm; } location ~ .php$ { root html; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /var/www/www.test.com$fastcgi_script_name; include fastcgi_params; } } } [root@ecs-24--jenjins ~]# mkdir -p /var/www/www.test.com/ [root@ecs-24--jenjins ~]# cd /var/www/www.test.com/ [root@ecs-24--jenjins ~]#touch index.php [root@ecs-24--jenjins ~]#vi index.php <?php phpinfo(); ?> [root@ecs-24--jenjins www.test.com]# chown -R 777 /var/www/www.test.com/ [root@ecs-24--jenjins www.test.com]# vi /etc/hosts 127.0.0.1 ecs-24--jenjins 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 127.0.0.1 localhost 117.78.44.225 www.test.com [root@ecs-24--jenjins www.test.com]# curl http://117.78.44.225/index.php 二、测试mysql连接是否成功 [root@ecs-24--jenjins ~]# cd /var/www/www.test.com/ [root@ecs-24--jenjins ~]#touch index.php [root@ecs-24--jenjins ~]#vi index.php [root@ecs-24--jenjins www.test.com]# cat index.php <?php $conn=mysqli_connect("127.0.0.1","root","123"); if($conn){ echo "连接mysql数据库成功"; }else{ echo "连接数据库失败"; } ?> [root@ecs-24--jenjins www.test.com]# curl http://117.78.44.225/index.php 连接mysql数据库成功 报错： 原因： centos php7怎么添加mysql支持 php7可以通过pod_mysql或者mysqli来开启mysql的支持php5中mysql扩展，在php7中已经不支持了。 一、正确做法 <?php $conn=mysqli_connect("127.0.0.1","root","pwd123"); 注意mysqli_connect 多个i if($conn){ echo "连接mysql数据库成功"; }else{ echo "连接数据库失败"; } ?> 错误的 <?php $conn=mysql_connect("127.0.0.1","root","pwd123"); 注意mysql_connect 少个i if($conn){ echo "连接mysql数据库成功"; }else{ echo "连接数据库失败"; } ?> 六：上传web网站 http://www.2cto.com/net/201612/577868.html