Android中怎么與服務器端數據進行交互

今天就跟大家聊聊有關Android中怎么與服務器端數據進行交互，可能很多人都不太了解，為了讓大家更加了解，小編給大家總結了以下內容，希望大家根據這篇文章可以有所收獲。

?首先下載KSOAP包：

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

然后新建android項目：并把下載的KSOAP包放在android項目的lib目錄下：右鍵->build path->configure build path--選擇Libraries，如圖：

以下分為七個步驟來調用WebService方法：

1、實例化SoapObject 對象，指定webService的命名空間（從相關WSDL文檔中可以查看命名空間），以及調用方法名稱。如：

//命名空間          private static final String serviceNameSpace="http://WebXml.com.cn/";      //調用方法(獲得支持的城市)         private static final String getSupportCity="getSupportCity";    //實例化SoapObject對象             SoapObject request=new SoapObject(serviceNameSpace, getSupportCity);

2、假設方法有參數的話,設置調用方法參數

request.addProperty("參數名稱","參數值");

3、設置SOAP請求信息(參數部分為SOAP協議版本號，與你要調用的webService中版本號一致):

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

4、注冊Envelope,

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

5、構建傳輸對象，并指明WSDL文檔URL：

//請求URL         private static final String serviceURL="http://www.webxml.com.cn/webservices/weatherwebservice.asmx";  //Android傳輸對象                 AndroidHttpTransport transport=new  AndroidHttpTransport(serviceURL);        transport.debug=true;

6、調用WebService(其中參數為1：命名空間+方法名稱，2：Envelope對象):

transport.call(serviceNameSpace+getWeatherbyCityName, envelope);

7、解析返回數據：

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;  }

這樣就成功啦。那么現在我們就來測試下吧，這里有個地址提供webService天氣預報的服務的，我這里只提供獲取城市列表：

//命名空間      private static final String serviceNameSpace="http://WebXml.com.cn/";      //請求URL      private static final String serviceURL="http://www.webxml.com.cn/webservices/weatherwebservice.asmx";      //調用方法(獲得支持的城市)      private static final String getSupportCity="getSupportCity";      //調用城市的方法(需要帶參數)      private static final String getWeatherbyCityName="getWeatherbyCityName";      //調用省或者直轄市的方法(獲得支持的省份或直轄市)      private static final String getSupportProvince="getSupportProvince";

我們選擇獲取國內外主要城市或者省份的方法吧：getSupportProvice,然后調用，你會發現瀏覽器返回給我們的是xml文檔：

<?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>直轄市</string>     <string>特別行政區</string>     <string>黑龍江</string>     <string>吉林</string>     <string>遼寧</string>    <string>內蒙古</string>     <string>河北</string>     <string>河南</string>     <string>山東</string>     <string>山西</string>     <string>江蘇</string>     <string>安徽</string>     <string>陜西</string>     <string>寧夏</string>     <string>甘肅</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>貴州</string>     <string>四川</string>     <string>廣東</string>     <string>廣西</string>    <string>云南</string>     <string>海南</string>     <string>新疆</string>     <string>西藏</string>     <string>臺灣</string>     <string>亞洲</string>     <string>歐洲</string>     <string>非洲</string>     <string>北美洲</string>     <string>南美洲</string>     <string>大洋洲</string>     </ArrayOfString>

我們可以用 listview來顯示：

那么下面我將給出全部代碼：

public class WebServiceHelper {     //WSDL文檔中的命名空間     private static final   String targetNameSpace="http://WebXml.com.cn/";    //WSDL文檔中的URL      private static final   String WSDL="http://webservice.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl";             //需要調用的方法名(獲得本天氣預報Web Services支持的洲、國內外省份和城市信息)      private static final String getSupportProvince="getSupportProvince";      //需要調用的方法名(獲得本天氣預報Web Services支持的城市信息,根據省份查詢城市集合：帶參數)     private static final String getSupportCity="getSupportCity";      //根據城市或地區名稱查詢獲得未來三天內天氣情況、現在的天氣實況、天氣和生活指數      private static final String getWeatherbyCityName="getWeatherbyCityName";      /********       * 獲得州，國內外省份和城市信息      * @return       */      public  List<String> getProvince(){          List<String>   provinces=new ArrayList<String>();          String str="";          SoapObject soapObject=new SoapObject(targetNameSpace,getSupportProvince);          //request.addProperty("參數", "參數值");調用的方法參數與參數值（根據具體需要可選可不選）                  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();              //下面對結果進行解析，結構類似json對象              //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;      }          /**********       * 根據省份或者直轄市獲取天氣預報所支持的城市集合       * @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;      }          /***************************       * 根據城市信息獲取天氣預報信息       * @param city       * @return       ***************************/     public  WeatherBean getWeatherByCity(String city){                  WeatherBean bean=new WeatherBean();          SoapObject soapObject=new SoapObject(targetNameSpace,getWeatherbyCityName);          soapObject.addProperty("theCityName",city);//調用的方法參數與參數值（根據具體需要可選可不選）                  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();              //下面對結果進行解析，結構類似json對象              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;      }          /**       * 解析返回的結果       * @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());//城市簡介  bean.setCityDescription(soapObject.getProperty(soapObject.getPropertyCount()-1).toString());   bean.setLiveWeather(soapObject.getProperty(10).toString()+"\n"+soapObject.getProperty(11).toString()); //其他數據 //日期，          String date=soapObject.getProperty(6).toString();      String weatherToday="今天：" + date.split(" ")[0];            weatherToday+="\n天氣："+ date.split(" ")[1];           weatherToday+="\n氣溫："+soapObject.getProperty(5).toString();         weatherToday+="\n風力："+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天氣："+ date.split(" ")[1];           weatherTomorrow+="\n氣溫："+soapObject.getProperty(12).toString();          weatherTomorrow+="\n風力："+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天氣："+ date.split(" ")[1];           weatherAfterTomorrow+="\n氣溫："+soapObject.getProperty(17).toString();          weatherAfterTomorrow+="\n風力："+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;      }         //解析圖標字符串       private int parseIcon(String data){          // 0.gif，返回名稱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];       }  }

上就是我所作的查詢天氣預報的全部核心代碼了，讀者可以根據注釋以及本文章了解下具體實現，相信很快就搞明白了，運行結果如下：

看完上述內容，你們對Android中怎么與服務器端數據進行交互有進一步的了解嗎？如果還想了解更多知識或者相關內容，請關注億速云行業資訊頻道，感謝大家的支持。