安卓怎么调用webservice
1个回答
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具体调用调用webservice的方法为:
(1) 指定webservice的命名空间和调用的方法名,如:
SoapObject request =new SoapObject(http://service,”getName”);
SoapObject类的第一个参数表示WebService的命名空间,可以从WSDL文档中找到WebService的命名空间。第二个参数表示要调用的WebService方法名。
(2) 设置调用方法的参数值,如果没有参数,可以省略,设置方法的参数值的代码如下:
Request.addProperty(“param1”,”value”);
Request.addProperty(“param2”,”value”);
要注意的是,addProperty方法的第1个参数虽然表示调用方法的参数名,但该参数值并不一定与服务端的WebService类中的方法参数名一致,只要设置参数的顺序一致即可。
(3) 生成调用Webservice方法的SOAP请求信息。该信息由SoapSerializationEnvelope对象描述,代码为:
SoapSerializationEnvelope envelope=new
SoapSerializationEnvelope(SoapEnvelope.VER11);
Envelope.bodyOut = request;
创建SoapSerializationEnvelope对象时需要通过SoapSerializationEnvelope类的构造方法设置SOAP协议的版本号。该版本号需要根据服务端WebService的版本号设置。在创建SoapSerializationEnvelope对象后,不要忘了设置SOAPSoapSerializationEnvelope类的bodyOut属性,该属性的值就是在第一步创建的SoapObject对象。
(4) 创建HttpTransportsSE对象。通过HttpTransportsSE类的构造方法可以指定WebService的WSDL文档的URL:
HttpTransportSE ht=new HttpTransportSE(“SearchNewsService?wsdl”);
(5)使用call方法调用WebService方法,代码:
ht.call(null,envelope);
Call方法的第一个参数一般为null,第2个参数就是在第3步创建的SoapSerializationEnvelope对象。
(6)使用getResponse方法获得WebService方法的返回结果,代码:
SoapObject soapObject =( SoapObject) envelope.getResponse();
以下为简单的实现一个天气查看功能的例子:
复制代码
publicclass WebService extends Activity {
privatestaticfinal String NAMESPACE ="";
// WebService地址
privatestatic String URL ="weatherwebservice.asmx";
privatestaticfinal String METHOD_NAME ="getWeatherbyCityName";
privatestatic String SOAP_ACTION ="getWeatherbyCityName";
private String weatherToday;
private Button okButton;
private SoapObject detail;
@Override
publicvoid onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
okButton = (Button) findViewById(R.id.ok);
okButton.setOnClickListener(new Button.OnClickListener() {
publicvoid onClick(View v) {
showWeather();
}
});
}
privatevoid showWeather() {
String city ="武汉";
getWeather(city);
}
@SuppressWarnings("deprecation")
publicvoid getWeather(String cityName) {
try {
System.out.println("rpc------");
SoapObject rpc =new SoapObject(NAMESPACE, METHOD_NAME);
System.out.println("rpc"+ rpc);
System.out.println("cityName is "+ cityName);
rpc.addProperty("theCityName", cityName);
AndroidHttpTransport ht =new AndroidHttpTransport(URL);
ht.debug =true;
SoapSerializationEnvelope envelope =new SoapSerializationEnvelope(
SoapEnvelope.VER11);
envelope.bodyOut = rpc;
envelope.dotNet =true;
envelope.setOutputSoapObject(rpc);
ht.call(SOAP_ACTION, envelope);
SoapObject result = (SoapObject) envelope.bodyIn;
detail = (SoapObject) result
.getProperty("getWeatherbyCityNameResult");
System.out.println("result"+ result);
System.out.println("detail"+ detail);
Toast.makeText(WebService.this, detail.toString(),
Toast.LENGTH_LONG).show();
parseWeather(detail);
return;
} catch (Exception e) {
e.printStackTrace();
}
}
privatevoid parseWeather(SoapObject detail)
throws UnsupportedEncodingException {
String date = detail.getProperty(6).toString();
weatherToday ="今天:"+ date.split("")[0];
weatherToday = weatherToday +"\n天气:"+ date.split("")[1];
weatherToday = weatherToday +"\n气温:"
+ detail.getProperty(5).toString();
weatherToday = weatherToday +"\n风力:"
+ detail.getProperty(7).toString() +"\n";
System.out.println("weatherToday is "+ weatherToday);
Toast.makeText(WebService.this, weatherToday,
Toast.LENGTH_LONG).show();
}
}
(1) 指定webservice的命名空间和调用的方法名,如:
SoapObject request =new SoapObject(http://service,”getName”);
SoapObject类的第一个参数表示WebService的命名空间,可以从WSDL文档中找到WebService的命名空间。第二个参数表示要调用的WebService方法名。
(2) 设置调用方法的参数值,如果没有参数,可以省略,设置方法的参数值的代码如下:
Request.addProperty(“param1”,”value”);
Request.addProperty(“param2”,”value”);
要注意的是,addProperty方法的第1个参数虽然表示调用方法的参数名,但该参数值并不一定与服务端的WebService类中的方法参数名一致,只要设置参数的顺序一致即可。
(3) 生成调用Webservice方法的SOAP请求信息。该信息由SoapSerializationEnvelope对象描述,代码为:
SoapSerializationEnvelope envelope=new
SoapSerializationEnvelope(SoapEnvelope.VER11);
Envelope.bodyOut = request;
创建SoapSerializationEnvelope对象时需要通过SoapSerializationEnvelope类的构造方法设置SOAP协议的版本号。该版本号需要根据服务端WebService的版本号设置。在创建SoapSerializationEnvelope对象后,不要忘了设置SOAPSoapSerializationEnvelope类的bodyOut属性,该属性的值就是在第一步创建的SoapObject对象。
(4) 创建HttpTransportsSE对象。通过HttpTransportsSE类的构造方法可以指定WebService的WSDL文档的URL:
HttpTransportSE ht=new HttpTransportSE(“SearchNewsService?wsdl”);
(5)使用call方法调用WebService方法,代码:
ht.call(null,envelope);
Call方法的第一个参数一般为null,第2个参数就是在第3步创建的SoapSerializationEnvelope对象。
(6)使用getResponse方法获得WebService方法的返回结果,代码:
SoapObject soapObject =( SoapObject) envelope.getResponse();
以下为简单的实现一个天气查看功能的例子:
复制代码
publicclass WebService extends Activity {
privatestaticfinal String NAMESPACE ="";
// WebService地址
privatestatic String URL ="weatherwebservice.asmx";
privatestaticfinal String METHOD_NAME ="getWeatherbyCityName";
privatestatic String SOAP_ACTION ="getWeatherbyCityName";
private String weatherToday;
private Button okButton;
private SoapObject detail;
@Override
publicvoid onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
okButton = (Button) findViewById(R.id.ok);
okButton.setOnClickListener(new Button.OnClickListener() {
publicvoid onClick(View v) {
showWeather();
}
});
}
privatevoid showWeather() {
String city ="武汉";
getWeather(city);
}
@SuppressWarnings("deprecation")
publicvoid getWeather(String cityName) {
try {
System.out.println("rpc------");
SoapObject rpc =new SoapObject(NAMESPACE, METHOD_NAME);
System.out.println("rpc"+ rpc);
System.out.println("cityName is "+ cityName);
rpc.addProperty("theCityName", cityName);
AndroidHttpTransport ht =new AndroidHttpTransport(URL);
ht.debug =true;
SoapSerializationEnvelope envelope =new SoapSerializationEnvelope(
SoapEnvelope.VER11);
envelope.bodyOut = rpc;
envelope.dotNet =true;
envelope.setOutputSoapObject(rpc);
ht.call(SOAP_ACTION, envelope);
SoapObject result = (SoapObject) envelope.bodyIn;
detail = (SoapObject) result
.getProperty("getWeatherbyCityNameResult");
System.out.println("result"+ result);
System.out.println("detail"+ detail);
Toast.makeText(WebService.this, detail.toString(),
Toast.LENGTH_LONG).show();
parseWeather(detail);
return;
} catch (Exception e) {
e.printStackTrace();
}
}
privatevoid parseWeather(SoapObject detail)
throws UnsupportedEncodingException {
String date = detail.getProperty(6).toString();
weatherToday ="今天:"+ date.split("")[0];
weatherToday = weatherToday +"\n天气:"+ date.split("")[1];
weatherToday = weatherToday +"\n气温:"
+ detail.getProperty(5).toString();
weatherToday = weatherToday +"\n风力:"
+ detail.getProperty(7).toString() +"\n";
System.out.println("weatherToday is "+ weatherToday);
Toast.makeText(WebService.this, weatherToday,
Toast.LENGTH_LONG).show();
}
}
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