从 adwords api 检索位置答案

【问题标题】：Retrieve Location from adwords api从 adwords api 检索位置
【发布时间】：2016-12-25 03:09:57
【问题描述】：

我正在尝试使用 adwords api 从我的广告系列中检索位置，我遇到了一个错误：

线程“main”java.lang.ClassCastException 中的异常：com.google.api.ads.adwords.axis.v201506.cm.Language 无法转换为 com.google.api.ads.adwords.axis.v201506。 cm.位置在 adwords.axis.v201506.basicoperations.GetCampaigns.locationExample(GetCampaigns.java:312) 在 adwords.axis.v201506.basicoperations.GetCampaigns.main(GetCampaigns.java:86)

这是我使用 Java 的代码：

public static void locationExample(
          AdWordsServices adWordsServices, AdWordsSession session, Long adGroupId) throws Exception {

        CampaignCriterionServiceInterface campaignCriterionService =
            adWordsServices.get(session, CampaignCriterionServiceInterface.class);

        int offset = 0;
        boolean morePages = true;

        // Create selector.
        SelectorBuilder builder = new SelectorBuilder();
        Selector selector = builder
            .fields(
                CampaignCriterionField.Id,
                CampaignCriterionField.CriteriaType,
                CampaignCriterionField.LocationName)
            .orderAscBy(CampaignCriterionField.Id)
            .offset(offset)
            .limit(PAGE_SIZE)
            .build();

        while (morePages) {

            CampaignCriterionPage page = campaignCriterionService.get(selector);


          if (page.getEntries() != null && page.getEntries().length > 0) {

            for (CampaignCriterion campaignCriterionResult : page.getEntries()) {
             Location location = (Location) campaignCriterionResult.getCriterion();
             System.out.println("Location ID: "+location.getId());
             System.out.println("Location Name: "+location.getLocationName());
             System.out.println("Location Bid adjustment: ");
             System.out.println("Location Type: "+location.getType());
            // System.out.println("Location Reach: "+location.get);
            }
          } else {
            System.out.println("No ad group criteria were found.");
          }

          offset += PAGE_SIZE;
          selector = builder.increaseOffsetBy(PAGE_SIZE).build();
          morePages = offset < page.getTotalNumEntries();
        }
      }

我的主要问题是如何从 adwords api 中检索位置和语言。

【问题讨论】：

标签： google-ads-api

【解决方案1】：

CampaignCriterion 检索与活动关联的所有条件，因此您不能将条件对象强制转换为一种类型（位置），因为这可能是另一个类。这一行是错误的：

Location location = (Location) campaignCriterionResult.getCriterion();

相反，您应该在投射对象之前检查类型。例如：

for(CampaignCriterion criterion: criterions) {
    if(criterion.getCriterion().getCriterionType().equals("Location")) {
        Location location = (Location) criterion.getCriterion();
        // Your code
    }
}

【讨论】：