Home Backend Development C#.Net Tutorial 10 recommended articles about WebClient

10 recommended articles about WebClient

Jun 13, 2017 am 10:00 AM

This article mainly introduces the implementation method of C# using WebClient to log in to the website and capture the web page information after login. It involves C# based session operation to log in to the web page and page reading related operation skills. Friends in need can refer to the examples in this article. C# uses WebClient to log in to the website and capture the web page information after login. I share it with you for your reference. The details are as follows: C# logging into the website is actually simulating the browser to submit the form, and then recording the session cookie value returned by the browser response. When sending the request again, the session cookie value can be used to request the simulated login. The effect is gone. The following CookieAwareWebClient implementations carry cookies when sending requests. public class CookieAwareWebClient : WebClient { private CookieContainer cookie = new C

1. 10 recommended articles about logging into the website

10 recommended articles about WebClient

Introduction: This article mainly introduces the implementation method of C# using WebClient to log in to the website and capture the web page information after login. It involves C# based on session operation to log in to the web page and page reading related operation skills. Friends who need it can Refer to the example in this article to describe the implementation method of C# using WebClient to log in to the website and capture the web page information after login. Share it with everyone for your reference. The details are as follows: C# logging in to the website actually simulates the browser to submit the form, and then records the session cookie value returned by the browser response. When sending the request again, use this session cookie value to request...

2. C#Use WebClient to log in to the website and capture the web page information after login.

10 recommended articles about WebClient

Introduction: This article mainly introduces the implementation method of C# using WebClient to log in to the website and capture the web page information after login. It involves C# based session operation login web page and page reading related operation skills, which are required Friends can refer to

3. WebClient code example for uploading pictures to remote service

10 recommended articles about WebClient

Introduction: This article mainly introduces the method of using WebClient to upload pictures to remote services in ASP.NET, including client and server. The code is accompanied by comments. Friends who need it can refer to it. Let’s go

4. Detailed graphic and text explanation of the file download code for WebClient implementation in C

10 recommended articles about WebClient

#Introduction: This article mainly introduces the implementation of file downloading by WebClient in C#. The editor thinks it is quite good, so I will share it with you now and give it as a reference. Let’s follow the editor to take a look

5. C# Use WebClient to implement two ways to download file code details

10 recommended articles about WebClient

Introduction: This article mainly introduces C# to use WebClient to download files in two ways. It introduces the two methods in detail. It is of great practical value. Friends who need it can For reference.

6. Introduction to two methods of parsing HTML under C

10 recommended articles about WebClient

#Introduction: Use System.Net.WebClient to download the Web Page and save it to a local file or String, and use regular expressions to analyze it. This method can be used in applications such as Web Crawler that need to analyze many Web Pages

7. The page table data is transmitted to the background through AJAX, but the Chinese value cannot be obtained? Why

Introduction: The page form data is transmitted to the background through AJAX, but the value cannot be obtained in Chinese? Why? JScript code var userindex = WebClient.Store[0].UserIndex; var name = $("name-input").value; var phone = $("pho

8. PHP POST download, unable to read the downloaded string

Introduction: PHP POST upload, the uploaded string cannot be read. It is written in local C# and is uploaded through this url using the WebClient class http://1.liuruitao.sinaapp.com/test.php?name={0}. The web page there if($_SERVER['REQUEST_METHOD']=="POST") { &nbs

9. PHP POST download, the downloaded string cannot be read

Introduction: PHP POST Uploading, the uploaded string cannot be read. It is written in local C# and is uploaded through this url using the WebClient class http://1.liuruitao.sinaapp.com/test.php?name={0}. The web page is if($_SERVER ['REQUEST_METHOD']=="POST") { &

10. The page table data is transmitted to the background through AJAX, but the Chinese value cannot be obtained? Why

Introduction: The page form data is transmitted to the background through AJAX, but the Chinese value cannot be obtained? Why? JScript code var userindex = WebClient.Store[0].UserIndex; var name = $("name-input").value; var phone = $("phone-i

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How to use various symbols in C language How to use various symbols in C language Apr 03, 2025 pm 04:48 PM

The usage methods of symbols in C language cover arithmetic, assignment, conditions, logic, bit operators, etc. Arithmetic operators are used for basic mathematical operations, assignment operators are used for assignment and addition, subtraction, multiplication and division assignment, condition operators are used for different operations according to conditions, logical operators are used for logical operations, bit operators are used for bit-level operations, and special constants are used to represent null pointers, end-of-file markers, and non-numeric values.

What is the role of char in C strings What is the role of char in C strings Apr 03, 2025 pm 03:15 PM

In C, the char type is used in strings: 1. Store a single character; 2. Use an array to represent a string and end with a null terminator; 3. Operate through a string operation function; 4. Read or output a string from the keyboard.

How to handle special characters in C language How to handle special characters in C language Apr 03, 2025 pm 03:18 PM

In C language, special characters are processed through escape sequences, such as: \n represents line breaks. \t means tab character. Use escape sequences or character constants to represent special characters, such as char c = '\n'. Note that the backslash needs to be escaped twice. Different platforms and compilers may have different escape sequences, please consult the documentation.

The difference between char and wchar_t in C language The difference between char and wchar_t in C language Apr 03, 2025 pm 03:09 PM

In C language, the main difference between char and wchar_t is character encoding: char uses ASCII or extends ASCII, wchar_t uses Unicode; char takes up 1-2 bytes, wchar_t takes up 2-4 bytes; char is suitable for English text, wchar_t is suitable for multilingual text; char is widely supported, wchar_t depends on whether the compiler and operating system support Unicode; char is limited in character range, wchar_t has a larger character range, and special functions are used for arithmetic operations.

The difference between multithreading and asynchronous c# The difference between multithreading and asynchronous c# Apr 03, 2025 pm 02:57 PM

The difference between multithreading and asynchronous is that multithreading executes multiple threads at the same time, while asynchronously performs operations without blocking the current thread. Multithreading is used for compute-intensive tasks, while asynchronously is used for user interaction. The advantage of multi-threading is to improve computing performance, while the advantage of asynchronous is to not block UI threads. Choosing multithreading or asynchronous depends on the nature of the task: Computation-intensive tasks use multithreading, tasks that interact with external resources and need to keep UI responsiveness use asynchronous.

How to convert char in C language How to convert char in C language Apr 03, 2025 pm 03:21 PM

In C language, char type conversion can be directly converted to another type by: casting: using casting characters. Automatic type conversion: When one type of data can accommodate another type of value, the compiler automatically converts it.

What is the function of C language sum? What is the function of C language sum? Apr 03, 2025 pm 02:21 PM

There is no built-in sum function in C language, so it needs to be written by yourself. Sum can be achieved by traversing the array and accumulating elements: Loop version: Sum is calculated using for loop and array length. Pointer version: Use pointers to point to array elements, and efficient summing is achieved through self-increment pointers. Dynamically allocate array version: Dynamically allocate arrays and manage memory yourself, ensuring that allocated memory is freed to prevent memory leaks.

How to use char array in C language How to use char array in C language Apr 03, 2025 pm 03:24 PM

The char array stores character sequences in C language and is declared as char array_name[size]. The access element is passed through the subscript operator, and the element ends with the null terminator '\0', which represents the end point of the string. The C language provides a variety of string manipulation functions, such as strlen(), strcpy(), strcat() and strcmp().

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