curl例子学习

绝地灬酷狼 2023-05-22 04:44 42阅读 0赞

# 零、curl命令模拟post请求发送json格式数据 #

curl -H "Content-Type:application/json" -H "Data_Type:msg" -X POST --data '{
        
    	"camera_id":"1111",
    	"kind":1,
    	"iswarm":"0",
    	"media_type":"jpeg",
    	"imagesrc":"/9j/2wCEAAgGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8UHRofHh0aHBwgJC4nICIsIxwcKDcpLDAxNDQ0Hyc5PTgyPC4zNDIBCQkJDAsMGA0NGDIhHCEyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMv/AABEIAGQAZAMBIgACEQEDEQH/xAGiAAABBQEBAQEBAQAAAAAAAAAAAQIDBAUGBwgJCgsQAAIBAwMCBAMFBQQEAAABfQECAwAEEQUSITFBBhNRYQcicRQygZGhCCNCscEVUtHwJDNicoIJChYXGBkaJSYnKCkqNDU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6g4SFhoeIiYqSk5SVlpeYmZqio6Slpqeoqaqys7S1tre4ubrCw8TFxsfIycrS09TV1tfY2drh4uPk5ebn6Onq8fLz9PX29/j5+gEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoLEQACAQIEBAMEBwUEBAABAncAAQIDEQQFITEGEkFRB2FxEyIygQgUQpGhscEJIzNS8BVictEKFiQ04SXxFxgZGiYnKCkqNTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqCg4SFhoeIiYqSk5SVlpeYmZqio6Slpqeoqaqys7S1tre4ubrCw8TFxsfIycrS09TV1tfY2dri4+Tl5ufo6ery8/T19vf4+fr/2gAMAwEAAhEDEQA/APAkqwlV0qwlAFhKsJVdKsJQBYSrCVXSrCUAWEqwlV0qwlAFhKsJVdKsJQBYSrCVXSrCUATjpS0g6UtAHj6VYSq6VYSgCwlWEqulWEoAsJVhKrpVhKALCVYSq6VYSgCwlWEqulWEoAsJVhKrpVhKAJx0paQdKWgDx9KsJVdKsJQBYSrCVXSrCUAWEqwlV0qwlAFhKsJVdKsJQBYSrCVXSrCUAWEqwlV0qwlAE46UtIOlLQB4+lWEqulWEoAsJVhKrpVhKALCVYSq6VYSgCwlWEqulWEoAsJVhKrpVhKALCVYSq6VYSgCcdKWkHSloA8fSrCVXSrCUAWEqwlV0qwlAFhKsJVdKsJQBYSrCVXSrCUAWEqwlV0qwlAFhKsJVdKsJQBOOlLSDpS0AePpVhKrpVhKALCVYSq6VYSgCwlWEqulWEoAsJVhKrpVhKALCVYSq6VYSgCwlWEqulWEoAnHSlpB0paAPH0qwlV0qwlAFhKsJVdKsJQBYSrCVXSrCUAWEqwlV0qwlAFhKsJVdKsJQBYSrCVXSrCUATjpS0g6UtAH/9k="
    }' http://192.168.1.11:8080/alert/push

// Content-Type: application/x-www-form-urlencoded
        // curl -v http://ip:port/kv -H "content-type:application/x-www-form-urlencoded" -d 'user=admin&pswd=123456'
    
    
    
    
        // Content-Type: application/json
        // curl -v http://ip:port/json -H "Content-Type:application/json" -d '{"user":"admin","pswd":"123456"}'
    
    
    
        // Content-Type: multipart/form-data
        // bin/curl -v http://ip:port/form -F "user=admin pswd=123456"
    
    
        // curl -v http://ip:port/test -H "Content-Type:application/x-www-form-urlencoded" -d 'bool=1&int=123&float=3.14&string=hello'
        // curl -v http://ip:port/test -H "Content-Type:application/json" -d '{"bool":true,"int":123,"float":3.14,"string":"hello"}'
        // bin/curl -v http://ip:port/test -F 'bool=1 int=123 float=3.14 string=hello'
    
    
        // Content-Type: application/grpc
        // bin/curl -v --http2 http://ip:port/grpc -H "content-type:application/grpc" -d 'protobuf'
    
    
        // RESTful API: /group/:group_name/user/:user_id
        // curl -v -X DELETE http://ip:port/group/test/user/123

# 一、查看网页源码 #

直接在curl命令后加上网址，就可以看到网页源码。我们以网址www.sina.com为例（选择该网址，主要因为它的网页代码较短）：

$ curl www.sina.com

如果要把这个网页保存下来，可以使用`-o`参数，这就相当于使用wget命令了。

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
    　　<html><head>
    　　<title>301 Moved Permanently</title>
    　　</head><body>
    　　<h1>Moved Permanently</h1>
    　　<p>The document has moved <a href="http://www.sina.com.cn/">here</a>.</p>
    　　</body></html>

如果要把这个网页保存下来，可以使用`-o`参数，这就相当于使用wget命令了。

$ curl -o [文件名] www.sina.com

# 二、自动跳转 #

有的网址是自动跳转的。使用`-L`参数，curl就会跳转到新的网址。

$ curl -L www.sina.com

键入上面的命令，结果就自动跳转为www.sina.com.cn。

# 三、显示头信息 #

`-i`参数可以显示http response的头信息，连同网页代码一起。

$ curl -i www.sina.com

`-I`参数则是只显示http response的头信息。

# 四、显示通信过程 #

`-v`参数可以显示一次http通信的整个过程，包括端口连接和http request头信息。