what is xml
xml is a language very similar to html, which adopts a certain format to display data. for example:
This example very vividly indicates:
Here is a note
The note is for you
The note is from me
The title is: Reminder and
the text is: See you at 8 o'clock tonight
The difference between xml and html
The original intention of xml design is to transmit data, and the focus is on data;
the original intention of html design is to display data, and the focus is on display;
the combination of html and css can show very beautiful effects, and xml does not aim at this.
Why is there xml in the interface?
The role of xml is very similar to json. Through json, the role of xml can be replaced:
Previously, interfaces usually used xml to transfer data. Now, most interfaces use json for data transfer, and xml has been neglected. The main reasons are:
The data transmission volume of json is small, and various attributes are often used in xml, and there are many redundant information;
json supports common formats such as numbers, Booleans, null, arrays, and objects, and xml is all text;
json parsing is more convenient.
However, there are still some companies that use xml for their interfaces, such as the well-known WeChat, many of which still use xml. The reason is that xml still has some advantages in some specific areas:
Readability has a slight advantage;
for UI pages, it is more convenient to use attributes to transmit page data, such as
Android applications.
historical advantage. XML developed earlier than json, and many experienced programmers prefer xml, and Java
programmers tend to like xml (now there are very few). Many APIs of WeChat still use xml,
perhaps for these reasons.
The difference between xml and json, in the final analysis, is that they express data in different ways. xml uses a tree structure, and json corresponds to a hash map.
Use tools to test the xml data interface
Sending data in xml format through the interface is almost the same as sending json, just change the format to xml. Use the postman interface testing tool to send the following xml data to the interface https://httpbin.org/post: 
Fill in the postman data:
You can view the sent data by capturing packets with fiddler:
View the returned results through postman:
From the example above:
Sending in xml format only needs to modify the format of the request header.
The format of the request header is Content-Type: application/xml.
Use the python programming language to test the xml data interface.
Using the requests library of the python language can easily send data in xml format, just change the request header format to application/xml:
The xml data is stored in the file.
If the test data is not passed directly in the code, but stored in the form of a file, use the open function in python to read it directly.
Corresponding code:
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3. Actual Combat of Web Automation Project
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5. Resume of first-tier manufacturers
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Eight, JMeter performance test
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