Android学习13-----网络通信(3) 与Web Service进行通讯
这里我们的WebService使用xFire开发。
首先开发服务器端，为了方便我们使用MyEclipse开发WebService
定义文件操作的接口IFileServices.java
package com.iflytek.services;public interface IFileServices {/** * 文件的保存 * * @param fileName * 文件名称 * @param content * 文件的内容 * @throws Exception */public void save(String fileName, String content) throws Exception;/** * 文件的读取 * * @param fileName * 文件名称 * @return * @throws Exception */public String load(String fileName) throws Exception;}实现类FileServicesImpl.java
package com.iflytek.services.impl;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.PrintStream;import java.util.Scanner;import com.iflytek.services.IFileServices;public class FileServicesImpl implements IFileServices {public String load(String fileName) throws Exception {File file = new File("D:" + File.separator + "xdwang" + File.separator+ fileName);if (!file.exists()) { // 文件不存在return null;}StringBuffer buf = new StringBuffer();Scanner scan = new Scanner(new FileInputStream(file));scan.useDelimiter("\n");while (scan.hasNext()) {buf.append(scan.next());}scan.close();return buf.toString();}public void save(String fileName, String content) throws Exception {File file = new File("D:" + File.separator + "xdwang" + File.separator+ fileName);if (!file.getParentFile().exists()) {file.getParentFile().mkdirs();}PrintStream out = new PrintStream(new FileOutputStream(file));out.print(content);out.close();}}配置services.xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://xfire.codehaus.org/config/1.0"><service><name>iflytek</name><serviceClass>com.iflytek.services.IFileServices</serviceClass><implementationClass>com.iflytek.services.impl.FileServicesImpl</implementationClass><style>wrapped</style><use>literal</use><scope>application</scope></service></beans>
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No.
方法
描述
1
Public SoapObject(String namespace,String name)
实例化SoapObject类对象
2
Public String getName()
取得要调用的方法名称
3
Public String getNameSpace()
取得Soap对象的命名空间
4
Public Object getProperty(java.lang.String name)
取得指定名称的属性
5
Public SoapObject addProperty(String name,Object value)
设置调用WebService方法时所需要的参数
No.
方法、常量、属性
类型
描述
1
常量
2
属性
3
属性
4
属性
5
构造
6
普通
No.
方法、属性
描述
1
2
3
package com.iflytek.demo;import java.io.IOException;import org.ksoap2.SoapEnvelope;import org.ksoap2.serialization.SoapObject;import org.ksoap2.serialization.SoapSerializationEnvelope;import org.ksoap2.transport.HttpTransportSE;import org.xmlpull.v1.XmlPullParserException;import android.app.Activity;import android.os.AsyncTask;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;import android.widget.Toast;public class WebServiceActivity extends Activity {private Button saveBtn = null;private Button loadBtn = null;private TextView showTxt = null;/** * 需要调用WebService的命名空间 */private static final String NAMESPACE = "http://IP/";/** * 服务的地址，不需要*.wsdl */private static String URL = "http://IP:8080/AndroidWebServiceProject/services/iflytek";/** * 需要调用的保存方法 */private static final String SAVE_METHOD_NAME = "save";/** * 需要调用的读取方法 */private static final String LOAD_METHOD_NAME = "load";private static String SOAP_ACTION = "http://IP:8080/AndroidWebServiceProject/services/";/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);this.saveBtn = (Button) super.findViewById(R.id.save);this.loadBtn = (Button) super.findViewById(R.id.load);this.showTxt = (TextView) super.findViewById(R.id.show);this.saveBtn.setOnClickListener(new SaveOnClickListenerImpl());this.loadBtn.setOnClickListener(new LoadOnClickListenerImpl());}private class SaveOnClickListenerImpl implements OnClickListener {@Overridepublic void onClick(View v) {final AsyncTask<Void, Void, String> task = new AsyncTask<Void, Void, String>() {@Overrideprotected void onPostExecute(String result) {Toast.makeText(WebServiceActivity.this, "数据保存成功",Toast.LENGTH_SHORT).show();}@Overrideprotected void onPreExecute() {super.onPreExecute();}@Overrideprotected String doInBackground(Void... arg0) {SoapObject soapObject = new SoapObject(NAMESPACE,SAVE_METHOD_NAME);soapObject.addProperty("fileName", "xdwang.txt");// 设置参数soapObject.addProperty("content", "Hello, xdwang ");SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);// 给出版本号envelope.bodyOut = soapObject;// 输出对象envelope.dotNet = false;// 不是.NET服务器envelope.setOutputSoapObject(soapObject);// 输出SoapObjetHttpTransportSE trans = new HttpTransportSE(URL);// 指定地址trans.debug = true; // 使用调试功能try {trans.call(SOAP_ACTION, envelope);// 调用方法} catch (IOException e) {e.printStackTrace();} catch (XmlPullParserException e) {e.printStackTrace();}return null;}};task.execute();}}private class LoadOnClickListenerImpl implements OnClickListener {@Overridepublic void onClick(View v) {final AsyncTask<Void, Void, String> task = new AsyncTask<Void, Void, String>() {@Overrideprotected void onPostExecute(String result) {WebServiceActivity.this.showTxt.setText("Web Service返回的数据是：" + result);}@Overrideprotected void onPreExecute() {super.onPreExecute();}@Overrideprotected String doInBackground(Void... arg0) {SoapObject soapObject = new SoapObject(NAMESPACE,LOAD_METHOD_NAME);soapObject.addProperty("fileName", "xdwang.txt");// 设置参数SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);// 给出版本号envelope.bodyOut = soapObject;// 输出对象envelope.dotNet = false;// 不是.NET服务器envelope.setOutputSoapObject(soapObject);// 输出SoapObjetHttpTransportSE trans = new HttpTransportSE(URL);// 指定地址trans.debug = true; // 使用调试功能try {trans.call(SOAP_ACTION, envelope);// 调用方法} catch (IOException e) {e.printStackTrace();} catch (XmlPullParserException e) {e.printStackTrace();}SoapObject result = (SoapObject) envelope.bodyIn;// 接收返回值return result.getProperty(0).toString();}};task.execute();}}}
main.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical" android:layout_width="fill_parent"android:layout_height="fill_parent"><Buttonandroid:id="@+id/save" android:layout_width="fill_parent"android:layout_height="wrap_content" android:text="通过WebService保存文件" /><Buttonandroid:id="@+id/load" android:layout_width="fill_parent"android:layout_height="wrap_content" android:text="通过WebService读取文件" /><TextViewandroid:id="@+id/show" android:layout_width="fill_parent"android:layout_height="wrap_content" android:text="显示文件读取内容" /></LinearLayout>
AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET" />
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