Android(安卓)中使用SOAP协议

SOAP协议：简单对象访问协议（Simple Object Access Protocol）是一种轻量的、简单的、基于 XML 的协议，它被设计成在 WEB 上交换结构化的和固化的信息。

在Android上使用SOAP协议比较常用的方式是第三方的库，比如：kSOAP 2：http://ksoap2.sourceforge.net。

下面给出一个使用OutputStreamWriter实现的SOAP协议，比较简单，直接上主要代码：

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.net.URL;import java.net.URLConnection;import java.util.HashMap;public class SopaObject {private String nameSapce = null;private String method = null;private StringBuffer soapXmlOut = null;private StringBuilder soapXmlIn = null;private HashMap<String, String> headMap = null;private HashMap<String, String> bodyMap = null;private String responseCode = null;private String responseMessage = null;public SopaObject(String nameSapce, String method) {this.nameSapce = nameSapce;this.method = method;headMap = new HashMap<String, String>();bodyMap = new HashMap<String, String>();soapXmlOut = new StringBuffer();soapXmlOut.append("<?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/\">");}public void setSoapHead(HashMap<String, String> headMap) {this.headMap = headMap;}public void setSoapBody(HashMap<String, String> bodyMap) {this.bodyMap = bodyMap;}public void request(String urlPath) {try {URL url = new URL(urlPath);URLConnection connection = url.openConnection();connection.setDoOutput(true);connection.setRequestProperty("Pragma:", "no-cache");connection.setRequestProperty("Cache-Control", "no-cache");connection.setRequestProperty("Content-Type", "text/xml");OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream());// HeadObject[] headKeys = headMap.keySet().toArray();soapXmlOut.append("<soap:Header><Credentials xmlns=\"" + nameSapce + "\">");for (Object key : headKeys) {soapXmlOut.append("<" + key + ">" + headMap.get(key) + "</" + key + ">");}soapXmlOut.append("</Credentials></soap:Header>");// BodyObject[] bodyKeys = bodyMap.keySet().toArray();soapXmlOut.append("<soap:Body><" + method + " xmlns=\"" + nameSapce + "\">");for (Object key : bodyKeys) {soapXmlOut.append("<" + key + ">" + bodyMap.get(key) + "</" + key + ">");}soapXmlOut.append("</" + method + "></soap:Body>");soapXmlOut.append("</soap:Envelope>");// Sendout.write(new String(soapXmlOut.toString().getBytes("UTF-8")));// Flush and closeout.flush();out.close();// Get responseBufferedReader bufferedReader = new BufferedReader(new InputStreamReader(connection.getInputStream()));soapXmlIn = new StringBuilder();String line = null;for (line = bufferedReader.readLine(); line != null; line = bufferedReader.readLine()) {soapXmlIn.append(line);}System.out.println("wangleyiang:" + soapXmlIn.toString());} catch (IOException e) {e.printStackTrace();}}}

测试一下，使用一个基于WebService的气象服务：http://www.webservicex.net/globalweather.asmx，测试代码如下：

        SopaObject object = new SopaObject("http://www.webservicex.net", "GetCitiesByCountry");                HashMap<String, String> map = new HashMap<String, String>();    map.put("CountryName", "China");        object.setSoapBody(map);                object.request("http://www.webservicex.net/globalweather.asmx");

SoapObject的方法比较少，意思比较明确，就不做说明了！：）

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