Question

我有一个非常基本的lua脚本，该脚本会返回错误，但是直接在控制台中运行querySelector效果很好。

有人暗示我的lua有什么问题吗？

function main(splash, args)
      assert(splash:go(args.url))
      assert(splash:wait(1))
      assert(splash:runjs('document.querySelector("button.btn.btn-primary.btn-show-rates").click()'))
      splash:set_viewport_full()
      return {
        html = splash:html(),
      }
    end

顺便说一句：website is here

错误日志：

{
"type": "ScriptError",
"error": 400,
"info": {
    "type": "LUA_ERROR",
    "line_number": 4,
    "error": "JS error: 'TypeError: null is not an object (evaluating \\'document.querySelector(\"button.btn.btn-primary.btn-show-rates\").click\\')'",
    "message": "Lua error: [string \"function main(splash, args)\r...\"]:4: JS error: 'TypeError: null is not an object (evaluating \\'document.querySelector(\"button.btn.btn-primary.btn-show-rates\").click\\')'",
    "source": "[string \"function main(splash, args)\r...\"]"
},
"description": "Error happened while executing Lua script"
 }

Answer 1

原来这很简单...

稍稍较长的“等待”，然后更改为document.querySelectorAll使其起作用。此处的最终代码：

    function main(splash, args)
      assert(splash:go(args.url))
      assert(splash:wait(5.0))
      assert(splash:runjs('document.querySelectorAll("button.btn.btn-primary.btn-show-rates")[0].click()'))
      assert(splash:runjs('document.querySelectorAll("button.btn.btn-primary.btn-show-rates")[1].click()'))
      assert(splash:runjs('document.querySelectorAll("button.btn.btn-primary.btn-show-rates")[2].click()'))
      splash:set_viewport_full()
      return {
        html = splash:html(),
      }
    end

Lua脚本失败，但JS可在控制台中运行

1 个答案: