angularjs 缓存

Posted 2020-10-02 撒哈拉的雪

 

设置缓存请求的数据：只有请求URL不变，就不会重新发请求

 

设置带定时时间的缓存：

 

.factory(\'cacheInterceptor\', [\'$cacheFactory\', \'$timeout\', function($cacheFactory, $timeout) {
  var ttlMap = {};
  return {
    request: function(config) {
      if (config.ttl) {
        var ttl = config.ttl;
        delete config.ttl;
        config.cache = true;

        // If not in ttlMap then we set up a timer to delete, otherwise there\'s already a timer.
        if (!ttlMap[config.url]) {
          ttlMap[config.url] = true;
          $timeout(ttl)
          .then(function() {
            $cacheFactory.get(\'$http\').remove(config.url);          
            delete ttlMap[config.url];
          });
        }
      }
      return config;
    }
  };
}])

.config([\'$routeProvider\', \'$httpProvider\', function($routeProvider, $httpProvider) {

  $httpProvider.interceptors.push(\'cacheInterceptor\');

$http.get(\'/permissions.json\', {timeToLive: Constant.timeToLive}).then(function(result){

.constant(\'Constant\', {
  url: {
    logout: \'/auth/logout\'
  },
  timeToLive: 60*60*1000
})