Android与服务器端数据交互（基于SOAP协议整合android+webservice）
上一节中我们通过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：
// 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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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：
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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：
到此结束，下一节主要是socket通信了。
标签：web,getProperty,String,envelope,toString,services,new,Android,soapObject From： https://blog.51cto.com/u_16034393/6886141