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我在通过 Android 上的新 java api 从功能提要中检索地图功能时遇到了真正的问题。尽管我可以获得包含 id 和标题（来自特定 MapFeed）的 featureFeed，但只要我将 FeatureContent 添加到请求中（用于获取地标详细信息），FeatureFeed.executeGet() 就会返回“400 bad request”错误。我做错了什么，还是目前实际上有错误？下面是我的一些代码 - 任何信息都将不胜感激，因为我已经为此努力了 3 天！（我在 FeatureContent 类中尝试过“kml:placemark”、“atom:placemark”和“placemark”）


public class FeatureFeed { 
    @Key("atom:id") 
    public String id; 
    @Key("atom:title") 
    public String title; 
    @Key("atom:entry") 
    public List features; 



public List<FeatureEntry> maps = new ArrayList<FeatureEntry>();

public static FeatureFeed executeGet( HttpTransport transport,
                BuildMapsUrl url) throws IOException {
 url.fields = GData.getFieldsFor(FeatureFeed.class);
 AtomParser parser = new AtomParser();
 parser.namespaceDictionary = Namespace.FEED_NAMESPACE_DICTIONARY;
 transport.addParser(parser);
 HttpRequest request = transport.buildGetRequest();
 request.url = url;
 return (FeatureFeed) RedirectHandler.
                  execute(request).parseAs(FeatureFeed.class);
}




}



public class FeatureEntry implements Cloneable {
 @Key("atom:id")
 public String id;
 @Key("atom:title")
 public String title;
 @Key("atom:content")
 public FeatureContent content;



public FeatureEntry() {
  // required
 }
 public FeatureEntry(String title, FeatureContent content) {
  this.title = title;
  this.content = content;
 }
}



public class FeatureContent implements Cloneable { 



@Key("@type")
 public String contentType = "application/vnd.google-earth.kml+xml";



@Key ("kml:Placemark") // adding this always fails with Bad Request

 public FeaturePlaceMark placemark; // adding this always fails with Bad Request



public FeatureContent() {
  //required
 }



public FeatureContent(FeaturePlaceMark placemark) {
  this.placemark = placemark;
 }
}



FEED_NAMESPACE_DICTIONARY.namespaceAliasToUriMap; 
                 feedMap.put("", "http://www.w3.org/2005/Atom");
                 feedMap.put("kml", "http://www.opengis.net/kml/2.2"); 
                 feedMap.put("atom", "http://www.w3.org/2005/Atom");
                 feedMap.put("exif", "http://schemas.google.com/photos/exif/2007"); 
                 feedMap.put("gd", "http://schemas.google.com/g/2005");
                 feedMap.put("gm", "http://schemas.google.com/g/2008#mapfeature");
                 feedMap.put("geo", "http://www.w3.org/2003/01/geo/wgs84_pos#"); 
                 feedMap.put("georss", "http://www.georss.org/georss"); 
                 feedMap.put("gml", "http://www.opengis.net/gml"); 
                 feedMap.put("gphoto", "http://schemas.google.com/photos/2007"); 
                 feedMap.put("media", "http://search.yahoo.com/mrss/"); 
                 feedMap.put("openSearch", "http://a9.com/-/spec/opensearch/1.1/"); 
                 feedMap.put("xml", "http://www.w3.org/XML/1998/namespace");

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1 回答 1

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我也去过那里...当我删除这句话url.fields = GData.getFieldsFor(FeatureFeed.class);时，程序运行良好，奇怪但有效。你可以试试看。

于 2011-03-28T08:18:46.237 回答