Android_WebServices_源代码分析 _代码分析

临文乍了了，彻卷兀若无。这篇文章主要讲述Android_WebServices_源代码分析相关的知识，希望能为你提供帮助。
本博文为子墨原创，转载请注明出处！ http://blog.csdn.net/zimo2013/article/details/38037989在 Android_WebServices_介绍一文中，简介了WebServices的基础知识。以下主要分析 ksoap2-android-assembly-3.3.0-jar-with-dependencies.jar实现源代码。 1.调用WebServices流程【Android_WebServices_源代码分析】

public void getRemoteInfo(String phoneSec) { String nameSpace = "http://WebXml.com.cn/"; String methodName = "getMobileCodeInfo"; String endPoint = "http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx"; String soapAction = "http://WebXml.com.cn/getMobileCodeInfo"; // 1.初始化 SoapObject对象。为该方法设置參数。相当于信体 SoapObject request = new SoapObject(nameSpace, methodName); request.addProperty("mobileCode", phoneSec); request.addProperty("userId", ""); // 2.实例化SoapSerializationEnvelope对象，相当于信皮 SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER10); envelope.bodyOut = request; envelope.dotNet = true; //兼容.net开发的Net-Services // 3.实例化HttpTransportSE对象，还能够指定放了訪问的请求时间 HttpTransportSE transport = new HttpTransportSE(endPoint); //HttpTransportSE transport = new HttpTransportSE(endPoint, timeout)； try { // 4.核心方法调用，当中soapActon在SoapSerializationEnvelope.VER12时无效，且为POST请求 transport.call(soapAction, envelope); SoapObject response = (SoapObject) envelope.bodyIn; final String result = response.getProperty(0).toString(); //Vector toast(result); } catch (Exception e) { e.printStackTrace(); toast(e.getMessage()); } }

2.transport.call关键源代码分析

/** * Perform a soap call with a given namespace and the given envelope providing * any extra headers that the user requires such as cookies. Headers that are * returned by the web service will be returned to the caller in the form of a * < code> List< /code> of < code> HeaderProperty< /code> instances. * * @param soapAction *the namespace with which to perform the call in. * @param envelope *the envelope the contains the information for the call. * @param headers *< code> List< /code> of < code> HeaderProperty< /code> headers to send with the SOAP request. * @param outputFile *a file to stream the response into rather than parsing it, streaming happens when file is not null * * @return Headers returned by the web service as a < code> List< /code> of * < code> HeaderProperty< /code> instances. * * @throws HttpResponseException *an IOException when Http response code is different from 200 */ public List call(String soapAction, SoapEnvelope envelope, List headers, File outputFile) throws HttpResponseException, IOException, XmlPullParserException {if (soapAction == null) { soapAction = "\"\""; }//依据envelope，将其序列化为一个请求字节数组 byte[] requestData = https://www.songbingjia.com/android/createRequestData(envelope,"UTF-8"); // debug=true, requestDump的值为请求的数据，方便调试 requestDump = debug ?
new String(requestData) : null; responseDump = null; //connection = new ServiceConnectionSE(proxy, url, timeout); 包含设置时间 ServiceConnection connection = getServiceConnection(); connection.setRequestProperty("User-Agent", USER_AGENT); // SOAPAction is not a valid header for VER12 so do not add // it // @see "http://code.google.com/p/ksoap2-android/issues/detail?
id=67 if (envelope.version != SoapSerializationEnvelope.VER12) { connection.setRequestProperty("SOAPAction", soapAction); }if (envelope.version == SoapSerializationEnvelope.VER12) { connection.setRequestProperty("Content-Type", CONTENT_TYPE_SOAP_XML_CHARSET_UTF_8); } else { connection.setRequestProperty("Content-Type", CONTENT_TYPE_XML_CHARSET_UTF_8); }// this seems to cause issues so we are removing it //connection.setRequestProperty("Connection", "close"); connection.setRequestProperty("Accept-Encoding", "gzip"); // Pass the headers provided by the user along with the call if (headers != null) { for (int i = 0; i < headers.size(); i++) { HeaderProperty hp = (HeaderProperty) headers.get(i); connection.setRequestProperty(hp.getKey(), hp.getValue()); } }// POST请求 connection.setRequestMethod("POST"); //发送数据。耗时较长，将requestData发送至connection的输出流 sendData(requestData, connection, envelope); requestData = https://www.songbingjia.com/android/null; InputStream is = null; List retHeaders = null; byte[] buf = null; // To allow releasing the resource after used int contentLength = 8192; // To determine the size of the response and adjust buffer size boolean gZippedContent = false; boolean xmlContent = false; // 得到响应码 int status = connection.getResponseCode(); try { //得到响应头 retHeaders = connection.getResponseProperties(); for (int i = 0; i < retHeaders.size(); i++) { HeaderProperty hp = (HeaderProperty)retHeaders.get(i); // HTTP response code has null key if (null == hp.getKey()) { continue; }// If we know the size of the response, we should use the size to initiate vars if (hp.getKey().equalsIgnoreCase("content-length") ) { if ( hp.getValue() != null ) { try { contentLength = Integer.parseInt( hp.getValue() ); } catch ( NumberFormatException nfe ) { contentLength = 8192; } } }// Check the content-type header to see if we‘re getting back XML, in case of a // SOAP fault on 500 codes if (hp.getKey().equalsIgnoreCase("Content-Type") & & hp.getValue().contains("xml")) { xmlContent = true; }// ignoring case since users found that all smaller case is used on some server // and even if it is wrong according to spec, we rather have it work.. if (hp.getKey().equalsIgnoreCase("Content-Encoding") & & hp.getValue().equalsIgnoreCase("gzip")) { gZippedContent = true; } }//first check the response code.... if (status != 200) { //throw new IOException("HTTP request failed, HTTP status: " + status); throw new HttpResponseException("HTTP request failed, HTTP status: " + status, status); }if (contentLength > 0) { if (gZippedContent) { is = getUnZippedInputStream( new BufferedInputStream(connection.openInputStream(),contentLength)); } else { is = new BufferedInputStream(connection.openInputStream(),contentLength); } } } catch (IOException e) { if (contentLength > 0) { if(gZippedContent) { is = getUnZippedInputStream( new BufferedInputStream(connection.getErrorStream(),contentLength)); } else { is = new BufferedInputStream(connection.getErrorStream(),contentLength); } }if ( e instanceof HttpResponseException) { if (!xmlContent) { if (debug & & is != null) { //go ahead and read the error stream into the debug buffers/file if needed. readDebug(is, contentLength, outputFile); }//we never want to drop through to attempting to parse the HTTP error stream as a SOAP response. connection.disconnect(); throw e; } } }// debug=true responseDump=响应数据，方便调试 if (debug) { is = readDebug(is, contentLength, outputFile); }// 依据is流，将流数据解析至 envelope.bodyIn中去 parseResponse(envelope, is,retHeaders); //释放资源 is = null; buf = null; connection.disconnect(); connection = null; // 返回响应头 return retHeaders; }

实例下载http://download.csdn.net/detail/strawberry2013/7663399