详细介绍android调用web service

来源：爱站网时间：2019-01-18编辑：网友分享

Web是基于SOAP协议的远程调用，通过Web可以将不同的操作系统平台、不同的语言和不同的技术集成在一起，下面是爱站技术频道小编详细介绍android调用web service，感兴趣的小伙伴们可以参考一下。

详细介绍android调用web service
1.下载该夹包可以直接登录http://code.google.com/p/ksoap2-android/,现在该站点已经提供了直接的下载，只要点击下载链接就可以下载了；
我现在的是ksoap2-android-assembly-2.6.5-jar-with-dependencies.jar

2.好了，现在我们就可以进行新建项目来进行测试了，首先我们先建立java服务端,这里的一些前期准备我就不说了（比如与spring的整合等示例），
由于这里重点是android客户端，java服务器端就直接给代码了

Interface:(这里提供了两个方法，一个传递的是简单字符串，另一个传递的是符合对象+集合)

package xidian.sl.service.webService;

import javax.jws.WebParam;

import javax.jws.WebService;

import javax.jws.soap.SOAPBinding;

import javax.jws.soap.SOAPBinding.Style;

import xidian.sl.service.impl.webService.StudentList;

@WebService

@SOAPBinding(style = Style.RPC)

public interface TestService {

public String getUser(@WebParam(name = "name")String name);

public StudentList getStuList();

}

implement:

package xidian.sl.service.impl.webService;

import java.util.ArrayList;

import java.util.List;

import javax.jws.WebService;

import xidian.sl.entity.Students;

import xidian.sl.service.webService.TestService;

@WebService(endpointInterface = "xidian.sl.service.webService.TestService")

public class TestServiceImpl implements TestService {

@Override

public String getUser(String name) {

System.out.println("客户端传递的名字为 = "+name);

return name;

}

@Override

public StudentList getStuList() {

System.out.println("该方法被调用");

List stuList = new ArrayList();

//第一个学生

Students stu1 = new Students();

stu1.setStuName("沈浪");

stu1.setStuNum("1006010054");

stu1.setStuSex("男");

stuList.add(stu1);

//第二个学生

Students stu2 = new Students();

stu2.setStuName("香香");

stu2.setStuNum("1006010043");

stu2.setStuSex("女");

stuList.add(stu2);

//将List集合封装成一个对象才能在webService中进行传递

StudentList studentList = new StudentList();

studentList.setStuList(stuList);

return studentList;

}

}

list的封装对象

package xidian.sl.service.impl.webService;

import java.util.List;

import xidian.sl.entity.Students;

public class StudentList {

private List stuList;

public List getStuList() {

return stuList;

}

public void setStuList(List stuList) {

this.stuList = stuList;

}

}

然后在srping的整合配置文件中进行如下配置即可（默认web.xml中已经进行配置）

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:jaxws="http://cxf.apache.org/jaxws"

xsi:schemaLocation="

http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context.xsd

http://cxf.apache.org/jaxws

http://cxf.apache.org/schemas/jaxws.xsd">

implementor="#testServiceImpl"

address="/test" />

3.到此服务器端的已经建立完全，我们可以测试下：开启tomcat，然后在浏览器中输入http://localhost:8090/WebExam/services/test?wsdl可以查看wsdl

现在我们就可以开始建立android客户端了
新建一个项目后导入ksoap2-android-assembly-2.6.5-jar-with-dependencies.jar，这里要特别注意：导入包的方式不要选择项目右键---->build path---->
add external archives...，如果使用这种方式表面上好像是导入了包，但还是没有办法引用到，然后启动项目后一直会报：

我们还是选择和开发web一样的方式，就是在项目下新建lib或者libs文件夹，然后将jar直接复制到该文件夹中，IDE会帮助直接引入的：

这样就正确无误了，不再会报类无法引用到了
android中通过webservice调用服务器端其实还是很简单的，只要按部就班的按照下面步骤进行即可：
（1）创建HttpTransportSE对象，该对象用于调用WebService操作

HttpTransportSE ht = new HttpTransportSE(SERVICE_URL);

（2）创建SoapSerializationEnvelope对象

SoapSerializationEnvelope envelope = new SoapSerializationEnvelope

(SoapEnvelope.VER11);

（3）创建SoapObject对象，创建该对象时需要传入所要调用的Web Service的命名空间和WebService方法名

SoapObject request = new SoapObject(SERVICE_NS, methodName);

（4）如果有参数传给Web Service服务器端，调用SoapObject对象的addProperty(String name, Object value)方法来设置参数，该方法的name参数指定参数名
注意：参数名不一定要与服务端的方法中的参数名相同，只要对应顺序相同即可；value参数指定参数值

request.addProperty("name", "1006010054");

（5）调用SoapSerializationEnvelope的setOutputSoapObject()方法，或者直接对bodyOut属性赋值，将前两步创建的SoapObject对象设为SoapSerializationEnvelope的传出SOAP消息体

envelope.bodyOut = request;

（6）调用对象的call()方法，并以SoapSerializationEnvelope作为参数调用远程的web service

ht.call(null, envelope);

（7）掉用完成后，访问SoapSerializationEnvelope对象的bodyIn属性，该属性返回一个SoapObject对象，该对象就代表Web service的返回消息，解析该对象，即可获得调用web service的返回值

SoapObject result = (SoapObject) envelope.bodyIn;

String name = result.getProperty(0).toString();

下面给书具体的实例：
mian.xml很简单就是两个编辑框：

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >
android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello" />
android:id="@+id/editText1"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:ems="10" >

android:id="@+id/editText2"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:ems="10" />

Activity:（该Activity调用了服务器端返回普通字符串的方法）

package xidian.sl.android.webservice;

import org.ksoap2.SoapEnvelope;

import org.ksoap2.serialization.SoapObject;

import org.ksoap2.serialization.SoapSerializationEnvelope;

import org.ksoap2.transport.HttpTransportSE;

import android.app.Activity;

import android.os.Bundle;

import android.widget.EditText;

public class WebServiceSimpleDemo extends Activity{

final static String SERVICE_NS = "http://webService.service.sl.xidian/";

final static String SERVICE_URL = "http://192.168.1.103:8090/WebExam/services/test";

private EditText txt1;

private EditText txt2;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

txt1 = (EditText) findViewById(R.id.editText1);

txt2 = (EditText) findViewById(R.id.editText2);

//调用的方法

String methodName = "getUser";

//创建httpTransportSE传输对象

HttpTransportSE ht = new HttpTransportSE(SERVICE_URL);

ht.debug = true;

//使用soap1.1协议创建Envelop对象

SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

//实例化SoapObject对象

SoapObject request = new SoapObject(SERVICE_NS, methodName);

/**

* 设置参数，参数名不一定需要跟调用的服务器端的参数名相同，只需要对应的顺序相同即可

* */

request.addProperty("name", "1006010054");

//将SoapObject对象设置为SoapSerializationEnvelope对象的传出SOAP消息

envelope.bodyOut = request;

try{

//调用webService

ht.call(null, envelope);

//txt1.setText("看看"+envelope.getResponse());

if(envelope.getResponse() != null){

txt2.setText("有返回");

SoapObject result = (SoapObject) envelope.bodyIn;

String name = result.getProperty(0).toString();

txt1.setText("返回值 = "+name);

}else{

txt2.setText("无返回");

}

}catch (Exception e) {

e.printStackTrace();

}

}

}

在AndroidManifest.xml进行Activity的注册和并添加访问网络的权限

package="xidian.sl.android.webservice"

android:versionCode="1"

android:versionName="1.0" >

android:icon="@drawable/ic_launcher"

android:label="@string/app_name" >
android:name=".WebServiceSimpleDemo"

android:label="@string/app_name" >

运行后的结果如图所示：

下面我们来试着调用回传符合对象的方法：
activity:

package xidian.sl.android.webservice;

import org.ksoap2.SoapEnvelope;

import org.ksoap2.serialization.SoapObject;

import org.ksoap2.serialization.SoapSerializationEnvelope;

import org.ksoap2.transport.HttpTransportSE;

import android.app.Activity;

import android.os.Bundle;

import android.widget.EditText;

public class WebServiceComplexDemo extends Activity{

final static String SERVICE_NS = "http://webService.service.sl.xidian/";

final static String SERVICE_URL = "http://192.168.1.103:8090/WebExam/services/test";

private EditText txt1;

private EditText txt2;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

txt1 = (EditText) findViewById(R.id.editText1);

txt2 = (EditText) findViewById(R.id.editText2);

//调用的方法

String methodName = "getStuList";

//创建httpTransportSE传输对象

HttpTransportSE ht = new HttpTransportSE(SERVICE_URL);

ht.debug = true;

//使用soap1.1协议创建Envelop对象

SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

//实例化SoapObject对象

SoapObject request = new SoapObject(SERVICE_NS, methodName);

/**

* 设置参数，参数名不一定需要跟调用的服务器端的参数名相同，只需要对应的顺序相同即可

* */

//request.addProperty("name", "1006010054");

//将SoapObject对象设置为SoapSerializationEnvelope对象的传出SOAP消息

envelope.bodyOut = request;

try{

//调用webService

ht.call(null, envelope);

txt2.setText("回传的值 ："+envelope.getResponse());

if(envelope.getResponse() != null){

SoapObject result = (SoapObject) envelope.bodyIn;

SoapObject soapChilds = (SoapObject)result.getProperty(0);

StringBuffer sb = new StringBuffer();

for(int i=0; i SoapObject soapChildsChilds = (SoapObject)soapChilds.getProperty(i);

sb.append("姓名["+i+"] = "+soapChildsChilds.getProperty(0).toString()+"\n");

sb.append("学号["+i+"] = "+soapChildsChilds.getProperty(1).toString()+"\n");

sb.append("性别["+i+"] = "+soapChildsChilds.getProperty(2).toString()+"\n"+"\n");

}

txt1.setText(sb.toString());

}else{

txt1.setText("无返回");

}

}catch (Exception e) {

e.printStackTrace();

}

}

} ();>

以上都是爱站技术频道小编和大家分享详细介绍android调用web service，希望对大家的学习有一定的帮助！

详细介绍android调用web service

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