Question

我正在使用jQuery中的AJAX调用从API检索JSON对象。这是我回来的一个示例对象：

  ...
  "batchcomplete": "",
  "query": {
    "normalized": [
      {
        "from": "star trek",
        "to": "Star trek"
      }
    ],
    "pages": {
      "1048985": {
        "pageid": 1048985,
        "ns": 0,
        "title": "Star trek",
        "extract": "<ul><li><b>From other capitalisation</b>: This is a redirect from a title with another method of capitalisation. It leads to the title in accordance with the Wikipedia naming conventions for capitalisation, or it leads to a title that is associated in some way with the conventional capitalisation of this redirect title. This may help writing, searching and international language issues.\n<ul><li>If this redirect is an incorrect capitalisation, then {{R from miscapitalisation}} should be used <i>instead</i>, and pages that use this link should be updated to link <i>directly</i> to the target. Miscapitisations can be tagged in <i>any namespace</i>.</li>\n<li>Use this rcat to tag <i>only</i> mainspace redirects; when other capitalisations are in other namespaces, use {{R from modification}} <i>instead</i>.</li>\n</ul></li>\n</ul>"
      }
    }
  }
}

我有另一个JSON对象回来，看起来像这样：

{
  "batchcomplete": "",
  "query": {
    "normalized": [
      {
        "from": "set",
        "to": "Set"
      }
    ],
    "pages": {
      "454886": {
        "pageid": 454886,
        "ns": 0,
        "title": "Set",
        "extract": "<p><b>Set</b> or <b>The Set</b> may refer to:</p>\n\n"
      }
    }
  }
}

我尝试做的是搜索这些对象以寻找特定的字符串，以便对结果执行逻辑以检索我实际需要的数据。在第一个例子中，我想在“extract”值中找到“From other capitalization”，在第二个例子中，我想找到'可以引用：'。

有没有办法在特定的JSON对象中搜索特定的字符串并返回该字符串是否存在？

Answer 1

对于你的具体情况，我会做这样的事情

function searchResponse(response, query){

  // loop through the objects keys which appear to be different page numbers
  for (const pageNum in response.pages){
    // reference the actual page object
    const page = response.pages[pageNum];


    // test the extract against the query.         
    if (page.extract.indexOf(query) !== -1) {
      return true;
    }
  }
  return false;
}

然后，您可以使用您要查找的任何搜索词调用每个响应上的函数。 true的结果意味着响应包含查询。但是，如果api返回多个页面，这将无效，因为它会搜索每个页面，return true如果任何页面包含query，这可能不是所需的结果。

Answer 2

我希望这会对你有所帮助。使用普通的javascript迭代键并找到所需的对象。

var obj = {
  "batchcomplete": "",
  "query": {
    "normalized": [{
      "from": "set",
      "to": "Set"
    }],
    "pages": {
      "454886": {
        "pageid": 454886,
        "ns": 0,
        "title": "Set",
        "extract": "<p><b>Set</b> or <b>The Set</b> may refer to:</p>\n\n"
      }
    }
  }
 };

var searchStr = " may refer to";
var results = [];
Object.keys(obj.query.pages).forEach(function(key) {
  if (obj.query.pages[key].extract.includes(searchStr)) {
    results.push(obj.query.pages[key].extract);
  }
});

results.forEach(function(res){ console.log(res); });

如何使用jquery在JSON对象中搜索对象内的特定字符串

2 个答案: