windows下的安装与使用curl实现命令行访问Web网站

文章目录

    • curl 是什么?
    • curl 能干什么?
    • Windows下的curl的使用
    • curl常见用法
        • 获取内容的命令选项
        • 参数传递(-d)
        • Cookie操作
    • 使用注意事项
    • curl 命令选项大全

curl 是什么?

矫情一点, curl应该写作cURL, 全写是:CommandLine Uniform Resource Locator, 命令行统一资源定位器。顾名思义,cURL就是使用命令行访问网页URL的工具。
Linux系统自带curl工具, 以CentOS为例, 在命令行终端输入:

curl https://www.baidu.com

稍好片刻,终端会返回网站的响应源代码,效果如下:
windows下的安装与使用curl实现命令行访问Web网站_第1张图片

curl 能干什么?

正常使用浏览器访问在线网页,是不需要使用curl的, curl比较常使用在爬虫程序或是网页分析的程序中。场景包括:

  • 定期爬某些网站,获取源码,解析其中有用的部分
  • 企业内部系统串接, 被访问系统提供HTTP(s)的对外接口,附加GET类型的参数,并返回执行成功与失败的响应。
  • 脚本程序。比如批次脚本或是部署脚本。

Windows下的curl的使用

Windows默认没有提供该工具,但可以下载第三方的程序,下载地址:
https://curl.haxx.se/windows/
下载页面如下(根据操作系统版本选择下载):
windows下的安装与使用curl实现命令行访问Web网站_第2张图片
下载完成是一个.zip 的压缩文件, 要在命令行窗口直接使用curl命令,需要做以下两件事:

  1. 下载之后解压。
  2. 配置环境变量。将curl解压后的bin目录配置到系统Path变量中,这样打开命令行就可以直接使用curl命令了。

这里解压到D盘install 目录,解压后目录结构如下:
windows下的安装与使用curl实现命令行访问Web网站_第3张图片
Windows 10下环境配置页面如下:
windows下的安装与使用curl实现命令行访问Web网站_第4张图片

以上配置完成,新开Windows 命令行窗口, 输入 curl https://www.baidu.com, 出现以上和Linux类同的响应即安装成功。

curl常见用法

除了获取页面源码外, curl 还可以通过添加命令选项获取头信息、添加参数、发送Cookie等操作。

获取内容的命令选项

  • 基本使用,获取内容(HTTP源码) curl www.baidu.com
  • -i 除了网页内容,还包括头信息,比如 curl www.baidu.com -i
    -I 仅获取头信息,比如:curl www.baidu.com -I
    -v 获取更详细的信息, 比如: curl www.baidu.com -v 。 v是verbose(详细)的简写, 包括:源码,头,IP,协议等

参数传递(-d)

curl使用 -d 选项传递参数,对于不同类型的请求参数,可以结合 -X 参数。

  1. GET类型的参数
    GET类型的请求参数其实可以直接附加在URL后面, 类似: http://地址?参数名1=参数值1&参数名2=参数值2。也可以使用 -d 和 -G 选项(-d 后面是参数的键和值, -G代表GET方法类型,与-X GET 效果类似),类似:
curl -G -d "username=oscar" www.baidu.com
  1. POST方法参数
    直接看实例:
curl -d "username=oscar" -X POST www.baidu.com

这里的 -X POST也可以省略,直接写成:

curl -d "username=oscar"  www.baidu.com
  1. 多个参数的传递
    多个参数可以使用 &, 也可以使用多个 -d。
    方式1: 使用&
curl -d "username=oscar&password=123" www.baidu.com

方式2: 多个 -d 选项

curl -d "username=oscar" -d "password=123" www.baidu.com
  1. 参数文件
    如果参数较多的话,也可以将参数放在一个文件中,使用参数文件进行传递,比如:
curl -d "@params.txt" www.baidu.com 

params.txt是文件名

Cookie操作

Cookie的操作包括:

  • 发送Cookie到服务端
  • 接收服务端返回的Cookie,写入本地
    对应以上两种操作,可以分别使用 -b 和 -c 命令选项。
  • -b , 发送Cookie到服务器 ,示例: curl -b "foo=bar" www.baidu.com, 也可以发送文件,示例:curl -b cookies.txt www.baidu.com
  • -c,将Cookie写入文件,示例:curl -c cookies.txt www.baidu.com

使用注意事项

以上参数使用双引号包含起来的,类似 “username=oscar”,在Linux系统下也可以使用单引号。但是在Windows下使用单引号会无法成功执行,出现的状况是:命令执行后,页面卡住不动。

curl 命令选项大全

 --anyauth       Pick "any" authentication method (H)
 -a, --append        Append to target file when uploading (F/SFTP)
     --basic         Use HTTP Basic Authentication (H)
     --cacert FILE   CA certificate to verify peer against (SSL)
     --capath DIR    CA directory to verify peer against (SSL)
 -E, --cert CERT[:PASSWD] Client certificate file and password (SSL)
     --cert-type TYPE Certificate file type (DER/PEM/ENG) (SSL)
     --ciphers LIST  SSL ciphers to use (SSL)
     --compressed    Request compressed response (using deflate or gzip)
 -K, --config FILE   Specify which config file to read
     --connect-timeout SECONDS  Maximum time allowed for connection
 -C, --continue-at OFFSET  Resumed transfer offset
 -b, --cookie STRING/FILE  String or file to read cookies from (H)
 -c, --cookie-jar FILE  Write cookies to this file after operation (H)
     --create-dirs   Create necessary local directory hierarchy
     --crlf          Convert LF to CRLF in upload
     --crlfile FILE  Get a CRL list in PEM format from the given file
 -d, --data DATA     HTTP POST data (H)
     --data-ascii DATA  HTTP POST ASCII data (H)
     --data-binary DATA  HTTP POST binary data (H)
     --data-urlencode DATA  HTTP POST data url encoded (H)
     --delegation STRING GSS-API delegation permission
     --digest        Use HTTP Digest Authentication (H)
     --disable-eprt  Inhibit using EPRT or LPRT (F)
     --disable-epsv  Inhibit using EPSV (F)
 -D, --dump-header FILE  Write the headers to this file
     --egd-file FILE  EGD socket path for random data (SSL)
     --engine ENGINGE  Crypto engine (SSL). "--engine list" for list
 -f, --fail          Fail silently (no output at all) on HTTP errors (H)
 -F, --form CONTENT  Specify HTTP multipart POST data (H)
     --form-string STRING  Specify HTTP multipart POST data (H)
     --ftp-account DATA  Account data string (F)
     --ftp-alternative-to-user COMMAND  String to replace "USER [name]" (F)
     --ftp-create-dirs  Create the remote dirs if not present (F)
     --ftp-method [MULTICWD/NOCWD/SINGLECWD] Control CWD usage (F)
     --ftp-pasv      Use PASV/EPSV instead of PORT (F)
 -P, --ftp-port ADR  Use PORT with given address instead of PASV (F)
     --ftp-skip-pasv-ip Skip the IP address for PASV (F)
     --ftp-pret      Send PRET before PASV (for drftpd) (F)
     --ftp-ssl-ccc   Send CCC after authenticating (F)
     --ftp-ssl-ccc-mode ACTIVE/PASSIVE  Set CCC mode (F)
     --ftp-ssl-control Require SSL/TLS for ftp login, clear for transfer (F)
 -G, --get           Send the -d data with a HTTP GET (H)
 -g, --globoff       Disable URL sequences and ranges using {} and []
 -H, --header LINE   Custom header to pass to server (H)
 -I, --head          Show document info only
 -h, --help          This help text
     --hostpubmd5 MD5  Hex encoded MD5 string of the host public key. (SSH)
 -0, --http1.0       Use HTTP 1.0 (H)
     --ignore-content-length  Ignore the HTTP Content-Length header
 -i, --include       Include protocol headers in the output (H/F)
 -k, --insecure      Allow connections to SSL sites without certs (H)
     --interface INTERFACE  Specify network interface/address to use
 -4, --ipv4          Resolve name to IPv4 address
 -6, --ipv6          Resolve name to IPv6 address
 -j, --junk-session-cookies Ignore session cookies read from file (H)
     --keepalive-time SECONDS  Interval between keepalive probes
     --key KEY       Private key file name (SSL/SSH)
     --key-type TYPE Private key file type (DER/PEM/ENG) (SSL)
     --krb LEVEL     Enable Kerberos with specified security level (F)
     --libcurl FILE  Dump libcurl equivalent code of this command line
     --limit-rate RATE  Limit transfer speed to this rate
 -l, --list-only     List only names of an FTP directory (F)
     --local-port RANGE  Force use of these local port numbers
 -L, --location      Follow redirects (H)
     --location-trusted like --location and send auth to other hosts (H)
 -M, --manual        Display the full manual
     --mail-from FROM  Mail from this address
     --mail-rcpt TO  Mail to this receiver(s)
     --mail-auth AUTH  Originator address of the original email
     --max-filesize BYTES  Maximum file size to download (H/F)
     --max-redirs NUM  Maximum number of redirects allowed (H)
 -m, --max-time SECONDS  Maximum time allowed for the transfer
     --metalink      Process given URLs as metalink XML file
     --negotiate     Use HTTP Negotiate Authentication (H)
 -n, --netrc         Must read .netrc for user name and password
     --netrc-optional Use either .netrc or URL; overrides -n
     --netrc-file FILE  Set up the netrc filename to use
 -N, --no-buffer     Disable buffering of the output stream
     --no-keepalive  Disable keepalive use on the connection
     --no-sessionid  Disable SSL session-ID reusing (SSL)
     --noproxy       List of hosts which do not use proxy
     --ntlm          Use HTTP NTLM authentication (H)
 -o, --output FILE   Write output to <file> instead of stdout
     --pass PASS     Pass phrase for the private key (SSL/SSH)
     --post301       Do not switch to GET after following a 301 redirect (H)
     --post302       Do not switch to GET after following a 302 redirect (H)
     --post303       Do not switch to GET after following a 303 redirect (H)
 -#, --progress-bar  Display transfer progress as a progress bar
     --proto PROTOCOLS  Enable/disable specified protocols
     --proto-redir PROTOCOLS  Enable/disable specified protocols on redirect
 -x, --proxy [PROTOCOL://]HOST[:PORT] Use proxy on given port
     --proxy-anyauth Pick "any" proxy authentication method (H)
     --proxy-basic   Use Basic authentication on the proxy (H)
     --proxy-digest  Use Digest authentication on the proxy (H)
     --proxy-negotiate Use Negotiate authentication on the proxy (H)
     --proxy-ntlm    Use NTLM authentication on the proxy (H)
 -U, --proxy-user USER[:PASSWORD]  Proxy user and password
     --proxy1.0 HOST[:PORT]  Use HTTP/1.0 proxy on given port
 -p, --proxytunnel   Operate through a HTTP proxy tunnel (using CONNECT)
     --pubkey KEY    Public key file name (SSH)
 -Q, --quote CMD     Send command(s) to server before transfer (F/SFTP)
     --random-file FILE  File for reading random data from (SSL)
 -r, --range RANGE   Retrieve only the bytes within a range
     --raw           Do HTTP "raw", without any transfer decoding (H)
 -e, --referer       Referer URL (H)
 -J, --remote-header-name Use the header-provided filename (H)
 -O, --remote-name   Write output to a file named as the remote file
     --remote-name-all Use the remote file name for all URLs
 -R, --remote-time   Set the remote file's time on the local output
 -X, --request COMMAND  Specify request command to use
     --resolve HOST:PORT:ADDRESS  Force resolve of HOST:PORT to ADDRESS
     --retry NUM   Retry request NUM times if transient problems occur
     --retry-delay SECONDS When retrying, wait this many seconds between each
     --retry-max-time SECONDS  Retry only within this period
 -S, --show-error    Show error. With -s, make curl show errors when they occur
 -s, --silent        Silent mode. Don't output anything
     --socks4 HOST[:PORT]  SOCKS4 proxy on given host + port
     --socks4a HOST[:PORT]  SOCKS4a proxy on given host + port
     --socks5 HOST[:PORT]  SOCKS5 proxy on given host + port
     --socks5-basic  Enable username/password auth for SOCKS5 proxies
     --socks5-gssapi Enable GSS-API auth for SOCKS5 proxies
     --socks5-hostname HOST[:PORT] SOCKS5 proxy, pass host name to proxy
     --socks5-gssapi-service NAME  SOCKS5 proxy service name for gssapi
     --socks5-gssapi-nec  Compatibility with NEC SOCKS5 server
 -Y, --speed-limit RATE  Stop transfers below speed-limit for 'speed-time' secs
 -y, --speed-time SECONDS  Time for trig speed-limit abort. Defaults to 30
     --ssl           Try SSL/TLS (FTP, IMAP, POP3, SMTP)
     --ssl-reqd      Require SSL/TLS (FTP, IMAP, POP3, SMTP)
 -2, --sslv2         Use SSLv2 (SSL)
 -3, --sslv3         Use SSLv3 (SSL)
     --ssl-allow-beast Allow security flaw to improve interop (SSL)
     --stderr FILE   Where to redirect stderr. - means stdout
     --tcp-nodelay   Use the TCP_NODELAY option
 -t, --telnet-option OPT=VAL  Set telnet option
     --tftp-blksize VALUE  Set TFTP BLKSIZE option (must be >512)
 -z, --time-cond TIME  Transfer based on a time condition
 -1, --tlsv1         Use => TLSv1 (SSL)
     --tlsv1.0       Use TLSv1.0 (SSL)
     --tlsv1.1       Use TLSv1.1 (SSL)
     --tlsv1.2       Use TLSv1.2 (SSL)
     --trace FILE    Write a debug trace to the given file
     --trace-ascii FILE  Like --trace but without the hex output
     --trace-time    Add time stamps to trace/verbose output
     --tr-encoding   Request compressed transfer encoding (H)
 -T, --upload-file FILE  Transfer FILE to destination
     --url URL       URL to work with
 -B, --use-ascii     Use ASCII/text transfer
 -u, --user USER[:PASSWORD]  Server user and password
     --tlsuser USER  TLS username
     --tlspassword STRING TLS password
     --tlsauthtype STRING  TLS authentication type (default SRP)
     --unix-socket FILE    Connect through this UNIX domain socket
 -A, --user-agent STRING  User-Agent to send to server (H)
 -v, --verbose       Make the operation more talkative
 -V, --version       Show version number and quit
 -w, --write-out FORMAT  What to output after completion
     --xattr        Store metadata in extended file attributes
 -q                 If used as the first parameter disables .curlrc

你可能感兴趣的:(460-Tools)