Android之webservice，基于soap协议的数据处理

我们可以通过http协议，采用HttpClient向服务器端action请求数据。当然调用服务器端方法获取数据并不止这一种。WebService也可以为我们提供所需数据，

那么什么是webService呢？，它是一种基于SAOP协议的远程调用标准，通过webservice可以将不同操作系统平台，不同语言，不同技术整合到一起。

  我们在PC机器java客户端中，需要一些库，比如XFire,Axis2,CXF等等来支持访问WebService，但是这些库并不适合我们资源有限的android手机客户端，做过JAVA ME的人都知道有KSOAP这个第三方的类库，可以帮助我们获取服务器端webService调用，当然KSOAP已经提供了基于android版本的 jar包了，那么我们就开始吧：

首先下载KSOAP包：ksoap2-android-assembly-2.5.2-jar-with-dependencies.jar包

然后新建android项目：并把下载的KSOAP包放在android项目的lib目录下：右键->build path->configure build path--选择Libraries，如图：

以下分为七个步骤来调用WebService方法：

第一：实例化SoapObject 对象，指定webService的命名空间（从相关WSDL文档中可以查看命名空间），以及调用方法名称。如：

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//命名空间  private static final String serviceNameSpace="http://WebXml.com.cn/";
//调用方法(获得支持的城市)  private static final String getSupportCity="getSupportCity";//实例化SoapObject对象  SoapObject request=new SoapObject(serviceNameSpace, getSupportCity);

第二步：假设方法有参数的话,设置调用方法参数

request.addProperty("参数名称","参数值");

第三步：设置SOAP请求信息(参数部分为SOAP协议版本号，与你要调用的webService中版本号一致):

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//获得序列化的Envelope  SoapSerializationEnvelope envelope=new SoapSerializationEnvelope(SoapEnvelope.VER11);
 envelope.bodyOut=request;

第四步：注册Envelope,

(new MarshalBase64()).register(envelope);

第五步：构建传输对象，并指明WSDL文档URL：

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//请求URL  private static final String serviceURL="http://www.webxml.com.cn/webservices/weatherwebservice.asmx";//Android传输对象  AndroidHttpTransport transport=new AndroidHttpTransport(serviceURL);
 transport.debug=true;

第六步：调用WebService(其中参数为1：命名空间+方法名称，2：Envelope对象):

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transport.call(serviceNameSpace+getWeatherbyCityName, envelope);

第七步：解析返回数据：

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if(envelope.getResponse()!=null){
return parse(envelope.bodyIn.toString());
 }/**************
 * 解析XML
 * @param str
 * @return */ private static List<String> parse(String str){
 String temp;
 List<String> list=new ArrayList<String>();
if(str!=null && str.length()>0){
int start=str.indexOf("string");
int end=str.lastIndexOf(";");
 temp=str.substring(start, end-3);
 String []test=temp.split(";");

for(int i=0;i<test.length;i++){
if(i==0){
 temp=test[i].substring(7);
 }else{
 temp=test[i].substring(8);
 }
int index=temp.indexOf(",");
 list.add(temp.substring(0, index));
 }
 }
return list;
 }

这样就成功啦。那么现在我们就来测试下吧，这里有个地址提供webService天气预报的服务的，我这里只提供获取城市列表：

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//命名空间
 private static final String serviceNameSpace="http://WebXml.com.cn/";
 //请求URL
 private static final String serviceURL="http://www.webxml.com.cn/webservices/weatherwebservice.asmx";
 //调用方法(获得支持的城市)
 private static final String getSupportCity="getSupportCity";
 //调用城市的方法(需要带参数)
 private static final String getWeatherbyCityName="getWeatherbyCityName";
 //调用省或者直辖市的方法(获得支持的省份或直辖市)
 private static final String getSupportProvince="getSupportProvince";

 然后你可以在浏览器中输入地址（WSDL）：serviceURL,你会看到一些可供调用的方法：

 我们选择获取国内外主要城市或者省份的方法吧：getSupportProvice,然后调用，你会发现浏览器返回给我们的是xml文档：

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<?xml version="1.0" encoding="utf-8" ?> 
- <ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://WebXml.com.cn/"> <string>直辖市</string> 
<string>特别行政区</string> 
<string>黑龙江</string> 
<string>吉林</string> 
<string>辽宁</string> 
<string>内蒙古</string> 
<string>河北</string> 
<string>河南</string> 
<string>山东</string> 
<string>山西</string> 
<string>江苏</string> 
<string>安徽</string> 
<string>陕西</string> 
<string>宁夏</string> 
<string>甘肃</string> 
<string>青海</string> 
<string>湖北</string> 
<string>湖南</string> 
<string>浙江</string> 
<string>江西</string> 
<string>福建</string> 
<string>贵州</string> 
<string>四川</string> 
<string>广东</string> 
<string>广西</string> 
<string>云南</string> 
<string>海南</string> 
<string>*</string> 
<string>*</string> 
<string>*</string> 
<string>亚洲</string> 
<string>欧洲</string> 
<string>非洲</string> 
<string>北美洲</string> 
<string>南美洲</string> 
<string>大洋洲</string> 
</ArrayOfString>

我们可以用 listview来显示：

那么下面我将给出全部代码：

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public class WebServiceHelper {

//WSDL文档中的命名空间  private static final String targetNameSpace="http://WebXml.com.cn/";
//WSDL文档中的URL  private static final String WSDL="http://webservice.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl";

//需要调用的方法名(获得本天气预报Web Services支持的洲、国内外省份和城市信息)  private static final String getSupportProvince="getSupportProvince";
//需要调用的方法名(获得本天气预报Web Services支持的城市信息,根据省份查询城市集合：带参数)  private static final String getSupportCity="getSupportCity";
//根据城市或地区名称查询获得未来三天内天气情况、现在的天气实况、天气和生活指数  private static final String getWeatherbyCityName="getWeatherbyCityName";


/********
 * 获得州，国内外省份和城市信息
 * @return */ public List<String> getProvince(){
 List<String> provinces=new ArrayList<String>();
 String str="";
 SoapObject soapObject=new SoapObject(targetNameSpace,getSupportProvince);
//request.addProperty("参数", "参数值");调用的方法参数与参数值（根据具体需要可选可不选）  
 SoapSerializationEnvelope envelope=new SoapSerializationEnvelope(SoapEnvelope.VER11);
 envelope.dotNet=true;
 envelope.setOutputSoapObject(soapObject);//envelope.bodyOut=request;  

 AndroidHttpTransport httpTranstation=new AndroidHttpTransport(WSDL);
//或者HttpTransportSE httpTranstation=new HttpTransportSE(WSDL);  try {

 httpTranstation.call(targetNameSpace+getSupportProvince, envelope);
 SoapObject result=(SoapObject)envelope.getResponse();
//下面对结果进行解析，结构类似json对象
//str=(String) result.getProperty(6).toString();  
int count=result.getPropertyCount();
for(int index=0;index<count;index++){
 provinces.add(result.getProperty(index).toString());
 }

 } catch (IOException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 } catch (XmlPullParserException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 } 
return provinces;
 }

/**********
 * 根据省份或者直辖市获取天气预报所支持的城市集合
 * @param province
 * @return */ public List<String> getCitys(String province){
 List<String> citys=new ArrayList<String>();
 SoapObject soapObject=new SoapObject(targetNameSpace,getSupportCity);
 soapObject.addProperty("byProvinceName", province);
 SoapSerializationEnvelope envelope=new SoapSerializationEnvelope(SoapEnvelope.VER11);
 envelope.dotNet=true;
 envelope.setOutputSoapObject(soapObject);

 AndroidHttpTransport httpTransport=new AndroidHttpTransport(WSDL);
try {
 httpTransport.call(targetNameSpace+getSupportCity, envelope);
 SoapObject result=(SoapObject)envelope.getResponse();
int count=result.getPropertyCount();
for(int index=0;index<count;index++){
 citys.add(result.getProperty(index).toString());
 }

 } catch (IOException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 } catch (XmlPullParserException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 } 
return citys;
 }

/***************************
 * 根据城市信息获取天气预报信息
 * @param city
 * @return ***************************/ public WeatherBean getWeatherByCity(String city){

 WeatherBean bean=new WeatherBean();

 SoapObject soapObject=new SoapObject(targetNameSpace,getWeatherbyCityName);
 soapObject.addProperty("theCityName",city);//调用的方法参数与参数值（根据具体需要可选可不选）  
 SoapSerializationEnvelope envelope=new SoapSerializationEnvelope(SoapEnvelope.VER11);
 envelope.dotNet=true;
 envelope.setOutputSoapObject(soapObject);//envelope.bodyOut=request;  

 AndroidHttpTransport httpTranstation=new AndroidHttpTransport(WSDL);
//或者HttpTransportSE httpTranstation=new HttpTransportSE(WSDL);  try {
 httpTranstation.call(targetNameSpace+getWeatherbyCityName, envelope);
 SoapObject result=(SoapObject)envelope.getResponse();
//下面对结果进行解析，结构类似json对象  bean=parserWeather(result);

 } catch (IOException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 } catch (XmlPullParserException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 } 
return bean;
 }

/** * 解析返回的结果
 * @param soapObject
*/ protected WeatherBean parserWeather(SoapObject soapObject){
 WeatherBean bean=new WeatherBean();

 List<Map<String,Object>> list=new ArrayList<Map<String,Object>>();


 Map<String,Object> map=new HashMap<String,Object>();

//城市名  bean.setCityName(soapObject.getProperty(1).toString());
//城市简介  bean.setCityDescription(soapObject.getProperty(soapObject.getPropertyCount()-1).toString());
//天气实况+建议  bean.setLiveWeather(soapObject.getProperty(10).toString()+"\n"+soapObject.getProperty(11).toString());

//其他数据
//日期，  String date=soapObject.getProperty(6).toString();
//---------------------------------------------------  String weatherToday="今天：" + date.split(" ")[0]; 
 weatherToday+="\n天气："+ date.split(" ")[1]; 
 weatherToday+="\n气温："+soapObject.getProperty(5).toString();
 weatherToday+="\n风力："+soapObject.getProperty(7).toString();
 weatherToday+="\n";

 List<Integer> icons=new ArrayList<Integer>();

 icons.add(parseIcon(soapObject.getProperty(8).toString())); 
 icons.add(parseIcon(soapObject.getProperty(9).toString()));

 map.put("weatherDay", weatherToday);
 map.put("icons",icons);
 list.add(map);




//-------------------------------------------------  map=new HashMap<String,Object>(); 
 date=soapObject.getProperty(13).toString();
 String weatherTomorrow="明天：" + date.split(" ")[0]; 
 weatherTomorrow+="\n天气："+ date.split(" ")[1]; 
 weatherTomorrow+="\n气温："+soapObject.getProperty(12).toString();
 weatherTomorrow+="\n风力："+soapObject.getProperty(14).toString();
 weatherTomorrow+="\n";

 icons=new ArrayList<Integer>();

 icons.add(parseIcon(soapObject.getProperty(15).toString())); 
 icons.add(parseIcon(soapObject.getProperty(16).toString()));

 map.put("weatherDay", weatherTomorrow);
 map.put("icons",icons);
 list.add(map);
//--------------------------------------------------------------  map=new HashMap<String,Object>(); 

 date=soapObject.getProperty(18).toString();
 String weatherAfterTomorrow="后天：" + date.split(" ")[0]; 
 weatherAfterTomorrow+="\n天气："+ date.split(" ")[1]; 
 weatherAfterTomorrow+="\n气温："+soapObject.getProperty(17).toString();
 weatherAfterTomorrow+="\n风力："+soapObject.getProperty(19).toString();
 weatherAfterTomorrow+="\n";

 icons=new ArrayList<Integer>();
 icons.add(parseIcon(soapObject.getProperty(20).toString())); 
 icons.add(parseIcon(soapObject.getProperty(21).toString()));

 map.put("weatherDay", weatherAfterTomorrow);
 map.put("icons",icons);
 list.add(map); 
//--------------------------------------------------------------  
 bean.setList(list);
return bean;
 }

//解析图标字符串  private int parseIcon(String data){
// 0.gif，返回名称0,  int resID=32;
 String result=data.substring(0, data.length()-4).trim();
// String []icon=data.split(".");
// String result=icon[0].trim();
// Log.e("this is the icon", result.trim());  
if(!result.equals("nothing")){
 resID=Integer.parseInt(result.trim());
 }
return resID;
//return ("a_"+data).split(".")[0];   } 
}

以及帮助类：

View Code

public class WebServiceUtil {

//命名空间  private static final String serviceNameSpace="http://WebXml.com.cn/";
//请求URL  private static final String serviceURL="http://www.webxml.com.cn/webservices/weatherwebservice.asmx";
//调用方法(获得支持的城市)  private static final String getSupportCity="getSupportCity";
//调用城市的方法(需要带参数)  private static final String getWeatherbyCityName="getWeatherbyCityName";
//调用省或者直辖市的方法(获得支持的省份或直辖市)  private static final String getSupportProvince="getSupportProvince";

/*************
 * @return城市列表
 *************/ public static List<String> getCityList(){
//实例化SoapObject对象  SoapObject request=new SoapObject(serviceNameSpace, getSupportCity);
//获得序列化的Envelope  SoapSerializationEnvelope envelope=new SoapSerializationEnvelope(SoapEnvelope.VER11);
 envelope.bodyOut=request;
 (new MarshalBase64()).register(envelope);
//Android传输对象  AndroidHttpTransport transport=new AndroidHttpTransport(serviceURL);
 transport.debug=true;

//调用  try {
 transport.call(serviceNameSpace+getWeatherbyCityName, envelope);
if(envelope.getResponse()!=null){
return parse(envelope.bodyIn.toString());
 }

 } catch (IOException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 } catch (XmlPullParserException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 }


return null;
 }


public static List<String> getProviceList(){
//实例化SoapObject对象  SoapObject request=new SoapObject(serviceNameSpace, getSupportProvince);
//获得序列化的Envelope  SoapSerializationEnvelope envelope=new SoapSerializationEnvelope(SoapEnvelope.VER11);
 envelope.bodyOut=request;
 (new MarshalBase64()).register(envelope);
//Android传输对象  AndroidHttpTransport transport=new AndroidHttpTransport(serviceURL);
 transport.debug=true;

//调用  try {
 transport.call(serviceNameSpace+getWeatherbyCityName, envelope);
if(envelope.getResponse()!=null){
return null;
 }

 } catch (IOException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 } catch (XmlPullParserException e) {
// TODO Auto-generated catch block  e.printStackTrace();
 }


return null;
 } 

/*************
 * @param cityName
 * @return *************/ public static String getWeather(String cityName){

return "";
 }

/**************
 * 解析XML
 * @param str
 * @return */ private static List<String> parse(String str){
 String temp;
 List<String> list=new ArrayList<String>();
if(str!=null && str.length()>0){
int start=str.indexOf("string");
int end=str.lastIndexOf(";");
 temp=str.substring(start, end-3);
 String []test=temp.split(";");

for(int i=0;i<test.length;i++){
if(i==0){
 temp=test[i].substring(7);
 }else{
 temp=test[i].substring(8);
 }
int index=temp.indexOf(",");
 list.add(temp.substring(0, index));
 }
 }
return list;
 }

/*********
 * 获取天气
 * @param soapObject
*/ private void parseWeather(SoapObject soapObject){
//String date=soapObject.getProperty(6);  } 
}

以上就是我所作的查询天气预报的全部核心代码了，读者可以根据注释以及本文章了解下具体实现，相信很快就搞明白了，运行结果如下：

转自：

http://blog.csdn.net/sosohotsummer/article/details/7958517