Android中怎么与服务器端数据进行交互

今天就跟大家聊聊有关Android中怎么与服务器端数据进行交互，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

首先下载KSOAP包：

ksoap2-android-assembly-2.5.2-jar-with-dependencies.jar

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：

1、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：

//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);

2、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");

3、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):

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

4、注册Envelope,

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

5、构建传输对象，并指明WSDL文档URL：

//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;

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

transport.call(serviceNameSpace+getWeatherbyCityName, envelope);

7、解析返回数据：

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：

//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";

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：

<?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>新疆</string>     <string>西藏</string>     <string>台湾</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：

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());   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];       }  }

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：

看完上述内容，你们对Android中怎么与服务器端数据进行交互有进一步的了解吗？如果还想了解更多知识或者相关内容，请关注亿速云行业资讯频道，感谢大家的支持。