For buckets with log storage enabled on or after December 1, 2025, object names in the log files will be URL-encoded by default. If your business works with the original object name, you must decode it to avoid parsing errors caused by encoded characters. This topic provides code examples in Python, Java, and Go that illustrate how to decode object names.

Python decoding example

from urllib.parse import unquote​
​
encoded_object = "data%2Ffile%2F%E6%97%A5%E5%BF%97%E5%AD%98%E5%82%A8.txt"​
decoded_object = unquote(encoded_object)​
# decoded_object will be "data/file/日志存储.txt"​

Java decoding example

import java.net.URLDecoder;​
import java.nio.charset.StandardCharsets;​
​
public class LocalDemoTest {​
    public static void main(String[] args) {​
​
        String encodedObject = "data%2Ffile%2F%E6%97%A5%E5%BF%97%E5%AD%98%E5%82%A8.txt";​
        // The '+' symbol in object names will not be URL encoded，so '+' will be decoded as a blank space. To avoid errors, replace '+' with '%2B'.​
        encodedObject = encodedObject.replace("+", "%2B");​
        // decodedObject will be "data/file/日志存储.txt"​
        try {​
            String decodedObject = URLDecoder.decode(encodedObject, StandardCharsets.UTF_8.toString());​
            System.out.println(decodedObject);​
        } catch (Exception e) {​
            e.printStackTrace();​
        }​
​
    }​
}​

Go decoding example

import "net/url"​
​
func main() {​
    encodedObject := "data%2Ffile%2F%E6%97%A5%E5%BF%97%E5%AD%98%E5%82%A8.txt"​
    // decodedObject will be "data/file/日志存储.txt"​
    decodedObject, err := url.PathUnescape(encodedObject)​
    if err != nil {​
        fmt.Println(err)​
    }​
    fmt.Println(decodedObject)​
}​

Last updated: 2025.10.30 18:52:24

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