API:随机

From mediawiki.org
This page is a translated version of the page API:Random and the translation is 74% complete.
MediaWiki版本:
1.12

GET请求查看随机页面列表。

该模块可用作生成器

API帮助文档


list=random (rn)

(main | query | random)
  • This module requires read rights.
  • This module can be used as a generator.
  • Source: MediaWiki
  • License: GPL-2.0-or-later

Get a set of random pages.

Pages are listed in a fixed sequence, only the starting point is random. This means that if, for example, Main Page is the first random page in the list, List of fictional monkeys will always be second, List of people on stamps of Vanuatu third, etc.

Specific parameters:
Other general parameters are available.
rnnamespace

Return pages in these namespaces only.

Values (separate with | or alternative): 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 90, 91, 92, 93, 100, 101, 102, 103, 104, 105, 106, 107, 486, 487, 710, 711, 828, 829, 1198, 1199, 2600, 5500, 5501
To specify all values, use *.
rnfilterredir

How to filter for redirects.

One of the following values: all, nonredirects, redirects
Default: nonredirects
rnredirect
Deprecated.

Use rnfilterredir=redirects instead.

Type: boolean (details)
rnlimit

Limit how many random pages will be returned.

Type: integer or max
The value must be between 1 and 500.
Default: 1
rncontinue

When more results are available, use this to continue. More detailed information on how to continue queries can be found on mediawiki.org.

Examples:
Return two random pages from the main namespace.
api.php?action=query&list=random&rnnamespace=0&rnlimit=2 [open in sandbox]
Return page info about two random pages from the main namespace.
api.php?action=query&generator=random&grnnamespace=0&grnlimit=2&prop=info [open in sandbox]

示例

GET请求

列出5个随机页面


响应

{

"batchcomplete": "",
    "continue": {
        "rncontinue": "0.559881820010|0.559881954661|47659388|0",
        "continue": "-||"
    },
    "query": {
        "random": [
            {
                "id": 32381675,
                "ns": 0,
                "title": "Mallabhum Institute of Technology"
            },
            {
                "id": 25126452,
                "ns": 3,
                "title": "User talk:96.232.132.176"
            },
            {
                "id": 1440028,
                "ns": 0,
                "title": "Hyundai Epsilon engine"
            },
            {
                "id": 35446805,
                "ns": 15,
                "title": "Category talk:Ukrainian card games"
            },
            {
                "id": 12613,
                "ns": 0,
                "title": "Grue"
            }
        ]
    }
}

示例代码

Python

#!/usr/bin/python3

"""
    get_random.py

    MediaWiki API Demos
    Demo of `Random` module: Get request to list 5 random pages.

    MIT License
"""

import requests

S = requests.Session()

URL = "https://en.wikipedia.org/w/api.php"

PARAMS = {
    "action": "query",
    "format": "json",
    "list": "random",
    "rnlimit": "5"
}

R = S.get(url=URL, params=PARAMS)
DATA = R.json()

RANDOMS = DATA["query"]["random"]

for r in RANDOMS:
    print(r["title"])

PHP

<?php
/*
    get_random.php

    MediaWiki API Demos
    Demo of `Random` module: Get request to list 5 random pages.

    MIT License
*/

$endPoint = "https://en.wikipedia.org/w/api.php";
$params = [
    "action" => "query",
    "format" => "json",
    "list" => "random",
    "rnlimit" => "5"
];

$url = $endPoint . "?" . http_build_query( $params );

$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
$output = curl_exec( $ch );
curl_close( $ch );

$result = json_decode( $output, true );

foreach( $result["query"]["random"] as $k => $v ) {
    echo( $v["title"] . "\n" );
}

JavaScript

/*
    get_random.js

    MediaWiki API Demos
    Demo of `Random` module: Get request to list 5 random pages.

    MIT License
*/

var url = "https://en.wikipedia.org/w/api.php"; 

var params = {
    action: "query",
    format: "json",
    list: "random",
    rnlimit: "5"
};

url = url + "?origin=*";
Object.keys(params).forEach(function(key){url += "&" + key + "=" + params[key];});

fetch(url)
    .then(function(response){return response.json();})
    .then(function(response) {
        var randoms = response.query.random;
        for (var r in randoms) {
            console.log(randoms[r].title);
        }
    })
    .catch(function(error){console.log(error);});

MediaWiki JS

/*
	get_random.js

	MediaWiki API Demos
	Demo of `Random` module: Get request to list 5 random pages.

	MIT License
*/

var params = {
		action: 'query',
		format: 'json',
		list: 'random',
		rnlimit: '5'
	},
	api = new mw.Api();

api.get( params ).done( function ( data ) {
	var randoms = data.query.random,
		r;
	for ( r in randoms ) {
		console.log( randoms[ r ].title );
	}
} );

参数历史

  • v1.26: Previous limit of 10/20 on rnlimit was increased to standard 500/5000 limits.
  • v1.26: 棄用rnredirect
  • v1.26: 啟用rnfilterredir
  • v1.14: 啟用rnredirect

附加提醒

  • 不像許多模塊一樣在 Action API 中,頁面的預設值是1而非10.
  • Pages are returned in a fixed sequence; only the starting point is actually random.
  • The default behavior is to pick pages from across the entire wiki, including talk pages, user pages, and so on. If you are looking for similar functionality as Special:Random, i.e. pick random articles, restrict rnnamespace to 0.
  • If the number of pages is fewer than rnlimit, the request will simply return all available pages. It will not repeat pages to pad out the response up to the limit.

參閱