C# XML Parser: C# Parsing XML Tutorial

What to do when XML data has been Try this.

We do data crawling often encounter a headache - the target site's XML interface suddenly does not allow access. This is the time to offer our secret weapon:proxy IPThe first thing that you need to do is to get the XML parser to work. Take C. Handling XML parsing isn't hard per se, but pairing it with a proxy IP is the real deal.

// As a chestnut, using ipipgo's proxy to access the XML interface
var proxy = new WebProxy("proxy.ipipgo.com:8000"); var handler = new HttpClientHandler { Proxy = proxy }; }
var handler = new HttpClientHandler { Proxy = proxy }; var client = new HttpClientHandler { Proxy = proxy }; }
var client = new HttpClient(handler);

// Parsing the remote XML data
var response = await client.GetStringAsync("https://api.example.com/data.xml"); var doc = XDocument.
var doc = XDocument.Parse(response);

XML parsing triple axe, there is always a trick for you

C commonly used XML parsing methods on the three, let's disk one by one:

The right way to open a proxy IP

Many newbies planted in the proxy configuration, here is a universal template:

// Configure the ipipgo proxy with the gold standard writeup
var credentials = new NetworkCredential("Your account", "Password");
var proxy = new WebProxy("gateway.ipipgo.com", 8080)
{
    UseDefaultCredentials = false,
    Credentials = credentials,
    BypassProxyOnLocal = false
}

// Key point! This setting must be added
WebRequest.DefaultWebProxy = proxy;

Practical guide to stepping on the pit

Last year to help customers capture e-commerce data encountered a typical problem: XML parsing always timeout. Later found that the quality of the proxy IP is not good, replaced with ipipgoExclusive enterprise-class linesThe problem is solved immediately. Here's a great trick to check if the proxy is working:

// Add this check before initiating the request
Console.WriteLine($ "Currently using proxy: {WebRequest.DefaultWebProxy.GetProxy(new Uri("http://check.ipipgo.com"))}");;

Frequently Asked Questions QA

Q: What should I do if I use a proxy IP and it slows down?
A: Eighty percent of the public proxy resources are crowded out, change to ipipgo exclusive line to cure all diseases

Q：How to determine whether the XML parsing error is a code problem or a proxy problem?
A：先访问试试，不行就代码问题。能但代理不行，赶紧检查IP配置

Q: What if I need to process multiple XML sources at the same time?
A: on ipipgo'smultithreaded agent poolThe speed is directly taken off by assigning different export IPs to each request.

I'll end with something heartfelt.

Engaged in technical do not like to beat around the bush, directly on the conclusion: XML parsing itself is not difficult, the real threshold in theStable access to data sourcesI've used seven or eight proxies. I've used 7 or 8 proxy services and ended up using ipipgo for the long term for three reasons:

1. Their API returns are stable within 200ms
2. 10-minute response time for technical support in case of problems
3. The pricing scheme is particularly developer-friendly

They recently came out with a newXML专用代理ip通道The parsing efficiency can be improved by more than 40%. The need for long-term processing of XML data, it is recommended that the enterprise directly on the customized program, more cost-effective than buying bits and pieces of IP.