Question

当我列出$ cacheFactory对象时，它有几个方法，但我没有看到实际的键/值缓存。

假设您正在查看$ http缓存，$ cacheFactory（$ http）如何获取当前缓存的键列表或理想情况下的键和值？

Answer 1

使用$cacheFactory的装饰器添加getKeys方法：

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>


<body ng-app="decorateExample">

  <script>
  function cacheProvider($provide) 
    {
    // monkey-patches $templateCache to have a keys() method
    $provide.decorator('$templateCache', ['$delegate', cacheDelegator]);
    }
                                          
  function cacheDelegator($delegate) 
    {
    var keys = [], origPut = $delegate.put;

    $delegate.put = function(key, value) 
      {
      origPut(key, value);
      keys.push(key);
      };

    // we would need cache.peek() to get all keys from $templateCache, but this features was never
    // integrated into Angular: https://github.com/angular/angular.js/pull/3760
    // please note: this is not feature complete, removing templates is NOT considered
    $delegate.getKeys = function() 
         {
         return keys;
         };

    return $delegate;
    }
  
angular.module('decorateExample', []);
  
angular.module('decorateExample').config(['$provide', cacheProvider]);
</script>

</body>

＆＃13;

<强>参考

从Angular cacheFactory获取密钥

1 个答案: