android調用web service(cxf)實例

android調用web service(cxf)實例

Google爲ndroid平臺開發Web Service提供了支持，提供了Ksoap2-android相關架包

1.下載該夾包可以直接登錄http://code.google.com/p/ksoap2-android/,現在該站點已經提供了直接的下載，只要點擊下載鏈接就可以下載了；

我現在的是ksoap2-android-assembly-2.6.5-jar-with-dependencies.jar

2.好了，現在我們就可以進行新建項目來進行測試了，首先我們先建立java服務端,這裏的一些前期準備我就不說了（比如與spring的整合等示例），

如果有不清楚的可以去看博客 http://www.cnblogs.com/shenliang123/archive/2012/04/16/2451580.html

由於這裏重點是android客戶端，java服務器端就直接給代碼了

Interface:(這裏提供了兩個方法，一個傳遞的是簡單字符串，另一個傳遞的是符合對象+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)

publicinterface 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")

publicclassTestServiceImpl implements TestService {

@Override

public String getUser(String name) {

System.out.println("客戶端傳遞的名字爲 = "+name);

return name;

}

@Override

public StudentList getStuList() {

System.out.println("該方法被調用");

List<Students> stuList = new ArrayList<Students>();

//第一個學生

Students stu1 = new Students();

stu1.setStuName("沈浪");

stu1.setStuNum("1006010054");

stu1.setStuSex("男");

stuList.add(stu1);

//第二個學生

Students stu2 = new Students();

stu2.setStuName("香香");

stu2.setStuNum("1006010043");

stu2.setStuSex("女");

stuList.add(stu2);

//將List集合封裝成一個對象才能在webService中進行傳遞

StudentList studentList = new StudentList();

studentList.setStuList(stuList);

return studentList;

}

list的封裝對象

package xidian.sl.service.impl.webService;

import java.util.List;

import xidian.sl.entity.Students;

publicclass StudentList{

private List<Students> stuList;

public List<Students> getStuList() {

return stuList;

}

publicvoid setStuList(List<Students> stuList) {

this.stuList = stuList;

}

然後在srping的整合配置文件中進行如下配置即可（默認web.xml中已經進行配置）

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

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">

<!--<importresource="classpath:META-INF/cxf/cxf-extension-soap.xml" />

警告提示已經廢棄了cxf-extension-soap.xml文件-->

<!-- 這裏配置服務接口，後面描述

id：指在spring配置的bean的ID.

Implementor:指明具體的實現類.

Address:指明這個web service的相對地址

-->

</bean>

<jaxws:endpoint id="testService"

implementor="#testServiceImpl"

address="/test"/>

<!-- 開啓tomcat服務器，訪問http://localhost:8080/WebExam/services/test?wsdl

http://localhost:8080/WebExam是本項目的訪問地址

services是由於web.xml配置所得，test是由於Spring配置文件中的address屬性所得

-->

</beans>

3.到此服務器端的已經建立完全，我們可以測試下：開啓tomcat，然後在瀏覽器中輸入http://localhost:8090/WebExam/services/test?wsdl可以查看wsdl

現在我們就可以開始建立android客戶端了

新建一個項目後導入ksoap2-android-assembly-2.6.5-jar-with-dependencies.jar，這裏要特別注意：導入包的方式不要選擇項目右鍵---->buildpath---->

add external archives...，如果使用這種方式表面上好像是導入了包，但還是沒有辦法引用到，然後啓動項目後一直會報：

我們還是選擇和開發web一樣的方式，就是在項目下新建lib或者libs文件夾，然後將jar直接複製到該文件夾中，IDE會幫助直接引入的：

這樣就正確無誤了，不再會報類無法引用到了

android中通過webservice調用服務器端其實還是很簡單的，只要按部就班的按照下面步驟進行即可：

（1）創建HttpTransportSE對象，該對象用於調用WebService操作

HttpTransportSE ht = newHttpTransportSE(SERVICE_URL);

（2）創建SoapSerializationEnvelope對象

SoapSerializationEnvelope envelope = newSoapSerializationEnvelope(SoapEnvelope.VER11);

（3）創建SoapObject對象，創建該對象時需要傳入所要調用的Web Service的命名空間和WebService方法名

SoapObject request = newSoapObject(SERVICE_NS, methodName);

（4）如果有參數傳給Web Service服務器端，調用SoapObject對象的addProperty(String name, Object value)方法來設置參數，該方法的name參數指定參數名

　　注意：參數名不一定要與服務端的方法中的參數名相同，只要對應順序相同即可；value參數指定參數值

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

（5）調用SoapSerializationEnvelope的setOutputSoapObject()方法，或者直接對bodyOut屬性賦值，將前兩步創建的SoapObject對象設爲SoapSerializationEnvelope

　　的傳出SOAP消息體

envelope.bodyOut = request;

（6）調用對象的call()方法，並以SoapSerializationEnvelope作爲參數調用遠程的web service

ht.call(null, envelope);

（7）掉用完成後，訪問SoapSerializationEnvelope對象的bodyIn屬性，該屬性返回一個SoapObject對象，該對象就代表Web service的返回消息，解析該對象，即可獲得

　　調用web service的返回值

SoapObject result = (SoapObject) envelope.bodyIn;

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

下面給書具體的實例：
mian.xml很簡單就是兩個編輯框：

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical">

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"/>

<EditText

android:id="@+id/editText1"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:ems="10">

</EditText>

<EditText

android:id="@+id/editText2"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:ems="10"/>

</LinearLayout>

Activity:（該Activity調用了服務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;

publicclass WebServiceSimpleDemoextends Activity{

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

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

private EditText txt1;

private EditText txt2;

/** Calledwhen the activity is first created. */

@Override

publicvoid onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

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

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

//調用的方法

String methodName = "getUser";

//創建httpTransportSE傳輸對象

HttpTransportSE ht = newHttpTransportSE(SERVICE_URL);

ht.debug = true;

//使用soap1.1協議創建Envelop對象

SoapSerializationEnvelope envelope = newSoapSerializationEnvelope(SoapEnvelope.VER11);

//實例化SoapObject對象

SoapObject request = newSoapObject(SERVICE_NS, methodName);

/**

* 設置參數，參數名不一定需要跟調用的服務器端的參數名相同，只需要對應的順序相同即可

* */

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

//將SoapObject對象設置爲SoapSerializationEnvelope對象的傳出SOAP消息

envelope.bodyOut = request;

try{

//調用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("無返回");

}

}catch (Exception e) {

e.printStackTrace();

}

在AndroidManifest.xml進行Activity的註冊和並添加訪問網絡的權限

<?xml version="1.0"encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="xidian.sl.android.webservice"

android:versionCode="1"

android:versionName="1.0">

<uses-sdk android:minSdkVersion="10"/>

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name">

<activity

android:name=".WebServiceSimpleDemo"

android:label="@string/app_name">

<intent-filter>

</intent-filter>

</activity>

</application>

<uses-permission android:name="android.permission.INTERNET"/>

</manifest>

運行後的結果如圖所示：

下面我們來試着調用回傳符合對象的方法：

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;

publicclassWebServiceComplexDemo extends Activity{

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

finalstatic String SERVICE_URL =

"http://192.168.1.103:8090/WebExam/services/test";

private EditText txt1;

private EditText txt2;

/** Calledwhen the activity is first created. */

@Override

publicvoid onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

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

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

//調用的方法

String methodName ="getStuList";

//創建httpTransportSE傳輸對象

HttpTransportSE ht = newHttpTransportSE(SERVICE_URL);

ht.debug = true;

//使用soap1.1協議創建Envelop對象

SoapSerializationEnvelope envelope = new

SoapSerializationEnvelope(SoapEnvelope.VER11);

//實例化SoapObject對象

SoapObject request = newSoapObject(SERVICE_NS, methodName);

/**

* 設置參數，參數名不一定需要跟調用的服務器端的參數名相同，只需要對應的順序相同即可

* */

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

//將SoapObject對象設置爲SoapSerializationEnvelope對象的傳出SOAP消息

envelope.bodyOut = request;

try{

//調用webService

ht.call(null, envelope);

txt2.setText("回傳的值："+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<soapChilds.getPropertyCount(); i++){

SoapObject soapChildsChilds=(SoapObject)soapChilds.getProperty(i);

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

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

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

}

txt1.setText(sb.toString());

}else{

txt1.setText("無返回");

}

}catch (Exception e) {

e.printStackTrace();

}

區別就是對於返回值的處理上，使用幾次getPropert()方法，這裏主要看返回值的層次，看下面的結果應該就能明白了，根據括號的層次來進行確定

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