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Golang development skills: How to use Baidu AI interface to implement web crawler
Introduction:
A web crawler is a program that automatically collects information on the Internet. The Baidu AI interface provides a wealth of functions and services that can help developers achieve various complex tasks. In this article, we will discuss how to use Golang to write a crawler and combine it with Baidu AI interface to achieve intelligent analysis and processing of data.
go get github.com/baidu-aip-sdk/go-aip
func httpGet(url string) ([]byte, error) { response, err := http.Get(url) if err != nil { return nil, err } defer response.Body.Close() body, err := ioutil.ReadAll(response.Body) if err != nil { return nil, err } return body, nil }
Next, we use this function to send a request to get the HTML content of the web page:
html, err := httpGet("https://www.example.com") if err != nil { log.Fatal(err) }
In this way we After obtaining the HTML content of the web page, we can then process it according to our needs.
import ( "github.com/baidu-aip-sdk/go-aip" )
Then, we need to initialize the client of Baidu AI interface and pass in the API Key and Secret Key applied before:
client := aip.NewAipNlp("<API Key>", "<Secret Key>")
Next, we can call the sentiment analysis API to perform sentiment analysis:
result, err := client.SentimentClassify(string(html), nil) if err != nil { log.Fatal(err) } // 处理分析结果...
To sum up, by combining Golang and Baidu AI interface, we can write a powerful web crawler and realize intelligent analysis and processing of data. Of course, this article just gives a simple example, you can extend and optimize the code according to your own needs. I hope this article will be helpful to your learning in Golang development and web crawling.
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