我无法从不以.xml扩展名结尾的url解析xml。但是,使用下面的代码,我可以在首先保存到/ res / raw时成功解析相同的xml。
或者使用。this或.xml扩展名创建时 例如,“api.androidhive.info/pizza/?format=xml”。
同时在网址末尾添加/?format=xml
并不能解决问题。
我认为这与获取HttpResponse有关,但我无法解决当前代码的问题。我需要能够检索xml并解析它,即使没有.xml扩展名。
public String getXmlFromUrl(String url) {
String xml = null;
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
xml = EntityUtils.toString(httpEntity);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// return XML
return xml;
}
public Document getDomElement(String xml){
Document doc = null;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xml));
doc = db.parse(is);
} catch (ParserConfigurationException e) {
Log.e("Error: ", e.getMessage());
return null;
} catch (SAXException e) {
Log.e("Error: ", e.getMessage());
return null;
} catch (IOException e) {
Log.e("Error: ", e.getMessage());
return null;
}
return doc;
}
以下是我的logcat的结果:
07-25 17:54:39.090: I/INFO(29276): Content:{"Message":"An error has occurred.","ExceptionMessage":"Value cannot be null.\r\nParameter name: entity","ExceptionType":"System.ArgumentNullException","StackTrace":" at System.Data.Entity.ModelConfiguration.Utilities.RuntimeFailureMethods.Requires(Boolean condition, String userMessage, String conditionText)\r\n at System.Data.Entity.DbSet`1.Add(TEntity entity)\r\n at iisCMS.Controllers.GetAppsController.PostApp(App app)\r\n at lambda_method(Closure , Object , Object[] )\r\n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass13.<GetExecutor>b__c(Object instance, Object[] methodParameters)\r\n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)\r\n at System.Threading.Tasks.TaskHelpers.RunSynchronously[TResult](Func`1 func, CancellationToken cancellationToken)"}
当我检查来自服务器的响应时,它是application/xml
,我认为我需要text/xml
以任何方式将一个转换为另一个?
答案 0 :(得分:0)
正如评论所示,现在您已经在String变量xml
中读取了正确的XML。
首先将XML写入文件。
Path path = new Path("C:/Temp/test.xml");
Files.write(file, xml.getBytes("UTF-8"),
StandardOpenOption.WRITE | StandardOpenOption.CREATE);
然后您可以使用浏览器查看文件是否存在违规行为。 DTD,模式,命名空间,验证。