獲取XML文件從SOAP響應<BooksResult> XML</ BooksResult>

Question

我發現了一個XML文件，從NET Web服務的值，像這裏顯示的值

HTTP/1.1 200 OK 
Content-Type: text/xml; charset=utf-8 
Content-Length: length 

<?xml version="1.0" encoding="utf-8"?> 
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> 
    <soap:Body> 
    <GetDataForRecommendedBooksResponse xmlns="http://tempuri.org/"> 
     <GetDataForRecommendedBooksResult>xml</GetDataForRecommendedBooksResult> 
    </GetDataForRecommendedBooksResponse> 
    </soap:Body> 
</soap:Envelope> 

我reltivly新的Android和我想知道是否有辦法處理這個文件並從中讀取數據？或者我應該只使用一些原始類型而不是xml文件？

Answer 1

有很多辦法讓XML內容，我給你我的方式：

您首先需要3個主要方法：

方法1：

public static String getXML(String url){  
      String line = null; 
      Log.d("-----URL STATE -----","Start getXML"); 
      try { 
       URL u = new URL (url); 
       HttpURLConnection huc = (HttpURLConnection) u.openConnection(); 
       huc.setRequestMethod ("GET"); //OR huc.setRequestMethod ("HEAD"); 
       huc.connect() ; 
       int code = huc.getResponseCode() ; 
       System.out.println(code); 
       Log.d("-----URL STATE -----","Checking URL"); 
       if (code==404){ 
        line="Wrong URL"; 
        Log.d("-----URL STATE -----"," Wrong URL"+code); 
       }else{ 
       //------------------- 
       DefaultHttpClient httpClient = new DefaultHttpClient(); 
       HttpPost httpPost = new HttpPost(url); 
        HttpResponse httpResponse = httpClient.execute(httpPost); 
        HttpEntity httpEntity = httpResponse.getEntity(); 
        line = EntityUtils.toString(httpEntity); 
       } 

      } catch (UnsupportedEncodingException e) { 
       line = "<results status=\"error\"><msg>Can't connect to server</msg></results>"; 
      } catch (MalformedURLException e) { 
       line = "<results status=\"error\"><msg>Can't connect to server</msg></results>"; 
      } catch (IOException e) { 
       line = "<results status=\"error\"><msg>Can't connect to server</msg></results>"; 
      } 

      return line; 

    } 

方法2：

public final static Document XMLfromString(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) { 
     System.out.println("XML parse error: " + e.getMessage()); 
     return null; 
    } catch (SAXException e) { 
     System.out.println("Wrong XML file structure: " + e.getMessage()); 
     return null; 
    } catch (IOException e) { 
     System.out.println("I/O exeption: " + e.getMessage()); 
     return null; 
    } 

    return doc; 

} 

方法3：

public static String getValue(Element item, String str) {  
    NodeList n = item.getElementsByTagName(str);   
    return XMLfunctions.getElementValue(n.item(0)); 
} 

使用：

String xml = getXML(url); 
Document doc =XMLfromString(xml); 
NodeList nodes = doc.getElementsByTagName(yourTAG); //TAG you want to get as String 
ArrayList<String> TAGS=new ArrayList<String>(); 
for (int i = 0; i < nodes.getLength(); i++) { 
Element e = (Element) nodes.item(i); 
TAGS.add(getValue(e,yourTAG.toString()); 
} 

現在你可以使用「標籤」

永遠記住'StrictMode.setThreadPolicy' 之前的一切：

if (android.os.Build.VERSION.SDK_INT > 9) { 
      StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder() 
        .permitAll().build(); 
      StrictMode.setThreadPolicy(policy); 
     }