我希望将标头发送到我在 Linux 机器上的 Apache 服务器。如何通过 cURL 调用实现这一点？
【问题讨论】：
标签： curl http-headers
-H/--header <header>
(HTTP) Extra header to use when getting a web page. You may specify
any number of extra headers. Note that if you should add a custom
header that has the same name as one of the internal ones curl would
use, your externally set header will be used instead of the internal
one. This allows you to make even trickier stuff than curl would
normally do. You should not replace internally set headers without
knowing perfectly well what you're doing. Remove an internal header
by giving a replacement without content on the right side of the
colon, as in: -H "Host:".
curl will make sure that each header you add/replace get sent with
the proper end of line marker, you should thus not add that as a
part of the header content: do not add newlines or carriage returns
they will only mess things up for you.
See also the -A/--user-agent and -e/--referer options.
This option can be used multiple times to add/replace/remove multi-
ple headers.
curl --header "X-MyHeader: 123" www.google.com
您可以通过添加-v 选项来查看 curl 发送的请求。
【讨论】：
获取：
使用 JSON：
curl -i -H "Accept: application/json" -H "Content-Type: application/json" http://hostname/resource
使用 XML：
curl -H "Accept: application/xml" -H "Content-Type: application/xml" -X GET http://hostname/resource
发布：
用于发布数据：
curl --data "param1=value1¶m2=value2" http://hostname/resource
文件上传：
curl --form "fileupload=@filename.txt" http://hostname/resource
RESTful HTTP 发布：
curl -X POST -d @filename http://hostname/resource
用于登录网站（身份验证）：
curl -d "username=admin&password=admin&submit=Login" --dump-header headers http://localhost/Login
curl -L -b headers http://localhost/
【讨论】：
Accept 是为客户（询问/请求），谁希望拥有这个，但标头@987654330 @只是服务端的answer而已，没有误会是客户端的愿望：“我想要这种类型的内容”。正确的？所以对于 GET curl -i -H "Accept: application/json" http://hostname/resource 应该是它。我错了吗？请参阅developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Type «在响应中，Content-Type 标头告诉客户端返回内容的实际内容类型。»
Content-Type。不是请求。 Content-Type 将始终指代在两方之间传输的数据类型。如果它在请求标头上，则意味着客户端说“是的，我正在向您发送数据类型application/json”到服务器。如果它正在响应，则意味着服务器说'现在我正在向客户端发送数据类型text/plain'。
在PHP中：
curl_setopt($ch, CURLOPT_HTTPHEADER, array('HeaderName:HeaderValue'));
或者你可以设置多个：
curl_setopt($ch, CURLOPT_HTTPHEADER, array('HeaderName:HeaderValue', 'HeaderName2:HeaderValue2'));
【讨论】：
【讨论】：
GET（多参数）：
curl -X GET "http://localhost:3000/action?result1=gh&result2=ghk"
或
curl --request GET "http://localhost:3000/action?result1=gh&result2=ghk"
或
curl "http://localhost:3000/action?result1=gh&result2=ghk"
或
curl -i -H "Application/json" -H "Content-type: application/json" "http://localhost:3000/action?result1=gh&result2=ghk"
【讨论】：
您还可以发送多个标头、数据（例如 JSON），并将调用方法（POST、GET）指定到单个 CUrl 调用中，如下所示：
curl -X POST(Get or whatever) \
http://your_url.com/api/endpoint \
-H 'Content-Type: application/json' \
-H 'header-element1: header-data1' \
-H 'header-element2: header-data2' \
......更多标题......
-d '{
"JsonExArray": [
{
"json_prop": "1",
},
{
"json_prop": "2",
}
]
}'
【讨论】：
我已经从 curl 切换到 Httpie;语法如下：
http http://myurl HeaderName:value
【讨论】：
如果您想发送您的自定义标头，您可以这样做：
curl -v -H @{'custom_header'='custom_header_value'} http://localhost:3000/action?result1=gh&result2=ghk
【讨论】：
{'custom_header'='custom_header_value'}的文件中读取标题吗？
在 anaconda 环境中通过 windows 的命令应该是： 获取，例如：
curl.exe http://127.0.0.1:5000/books
为 ex 发布或修补数据：
curl.exe http://127.0.0.1:5000/books/8 -X PATCH -H "Content-Type: application/json" -d '{\"rating\":\"2\"}'
PS：为json数据添加反斜杠以避免此类错误=> Failed to decode JSON object: Expecting value: line 1 column 1 (char 0)
并使用curl.exe 而不是curl 只是为了避免这个问题：
Invoke-WebRequest : Cannot bind parameter 'Headers'. Cannot convert the "Content-Type: application/json" value of type
"System.String" to type "System.Collections.IDictionary".
At line:1 char:48
+ ... 0.1:5000/books/8 -X PATCH -H "Content-Type: application/json" -d '{\" ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (:) [Invoke-WebRequest], ParameterBindingException
+ FullyQualifiedErrorId : CannotConvertArgumentNoMessage,Microsoft.PowerShell.Commands.InvokeWebRequestCommand
【讨论】：
以下是一些最常见的 http 方法的 curl 命令。
这里考虑的域对象是
@Data
@NoArgsConstructor
@AllArgsConstructor
@Document
@Validated
public class Movie {
@Id
private String id;
private String name;
@NotNull
private Integer year;
@NotNull
private List<String> cast;
private LocalDate release_date;
}
curl -i \
-d '{"id":1, "name": "Dhoom", "year":2004,"cast":["John Abraham", "Abhishek Bachan"],"release_date": "2004-06-15"}' \
-H "Content-Type: application/json" \
-X POST http://localhost:8080/v1/movies
curl -i http://localhost:8080/v1/movies
curl -i http://localhost:8080/v1/movies/1
curl -i \
-d '{"id":1, "name": "Dhoom", "year":2005,"cast":["John Abhraham", "Abhishek Bachhan", "Uday Chopra", "Isha Deol"],"release_date": "2005-03-25"}' \
-H "Content-Type: application/json" \
-X PUT http://localhost:8080/v1/movies/1
curl -i -X DELETE http://localhost:8080/v1/movies/1
【讨论】：