如何使用elastic.js获得弹性搜索的所有索引？

3 回答

• 1

  elasticsearch JS API有一个方法来查询实例上的所有索引：https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/api-reference.html#api-cat-indices

  唯一的问题是它并没有真正以可读的JSON格式返回给您 . 所以我最终做的就是以下内容

  client.cat.indices({
    h: ['index', 'docs.count']
  }).then(function (body) {
    let lines = body.split('\n');
    let indices = lines.map(function (line) {
      let row = line.split(' ');
      return {name: row[0], count: row[1]};
    });
    indices.pop(); //the last line is empty by default
  });
  

  回复于 2024-04-28T00:31:55+08:00
• 1

  我在javascript中进行了如下查询，它返回了索引列表

  client.cat.indices({
    h: ['index']
  }).then(function (body) {
    console.log(body);
  });
  

  回复于 2024-04-28T00:31:55+08:00
• 1

  我正在使用elasticsearch.js，这是可以在浏览器中使用的Elastic Search的浏览器构建 . 请参阅link . 我维持了一个工厂：

  .factory('ElasticService', [ 'esFactory', function (elasticsearch) {
      var client = elasticsearch({
        host: ip + ':' + port,
      });  
  
  client.cat.indices("b",function(r,q){
    console.log(r,q);
  }) }]);
  

  这将返回所有索引 . 请参阅link进行完整配置 .

  编辑：以下是从特定索引检索数据的完整工厂 .

  .factory('ElasticService', ['$q', 'esFactory', '$location', function ($q, elasticsearch, $location) {
  var client = elasticsearch({
    host: ip + ':' + port
  });
  
  
  var search = function (index, body) {
    var deferred = $q.defer();
    client.search({
      index: index,
      type: type,
      body: body
    }).then(function (result) {
      var took = result.took;
      var size = result.hits.total;
      var ii = 0, hits_in, hits_out = [],aggs = [], highlight = [];
      hits_in = (result.hits || {}).hits || [];
      /* For the timebeing i have maintained this variable to save the aggregations */
      aggs = result.aggregations;
      for (; ii < hits_in.length; ii++) {
        hits_in[ii].fields.id = hits_in[ii]._id;
        hits_out.push(hits_in[ii].fields);
        // hits_out[hits_in[ii]._id]=hits_in[ii].fields: use this method if you wanna keep _id as the index
  
        // if there is a highlight coming along with the data we add a field highlight and push it to built an array
        if (hits_in[ii].highlight) {
          highlight.push(hits_in[ii].highlight);
        }
      }
      if (highlight.length) {
        deferred.resolve({hits: hits_out, highlight: highlight,aggs:aggs, size: size, took: took});
      }
      else {
        deferred.resolve({hits: hits_out, size: size,aggs:aggs, took: took});
      }
  
    }, deferred.reject);
    return deferred.promise;
  };
  return {search: search};  }]);
  

  因此控制器可以使用此工厂从特定索引中获取数据

  ElasticService.search('<index>', <query>).then(function (resp) {
      // resp has the content
    });
  

  回复于 2024-04-28T00:31:55+08:00