【Android进阶】Android调用WebService的实现

最近想自己搞搞服务器，就从最简单的webservice开始吧

先上效果图



项目结构



开始贴代码，注释都有，有问题的请留言

MainActivity.java

package com.example.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.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
/**
* WebService调用实例
* @author 	ZhaoKaiQiang
*
*			Time:2014年3月11日
*/
public class MainActivity extends Activity {

private String result;
private EditText x;
private EditText y;
private TextView tv;

Handler handler = new Handler() {
public void handleMessage(Message msg) {
tv.setText(result);
};
};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
x = (EditText) findViewById(R.id.x);
y = (EditText) findViewById(R.id.y);
tv = (TextView) findViewById(R.id.tv);
}

public void click(View view) {
new Thread(new Runnable() {

@Override
public void run() {
//获取返回值
result = get("Add",
Integer.valueOf(x.getText().toString().trim()),
Integer.valueOf(y.getText().toString().trim()));
//发送message将结果更新
handler.sendEmptyMessage(1);
}
}).start();
}

/**
* 调用WebService
* @param Method	方法名
* @param x			加数x
* @param y			加数y
* @return			相加后的结果
*/
public  String get(String Method, int x, int y) {
//命名空间
String NAME_SPACE = "http://tempuri.org/";
//Webservice的调用地址url
String WEBSERVICE_URL = "http://119.167.225.206:55555/WebService1.asmx";
String data = "0";
try {
String soapAction = NAME_SPACE + Method;
SoapObject request = new SoapObject(NAME_SPACE, Method);
// 添加方法需要的参数
request.addProperty("x", x);
request.addProperty("y", y);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.bodyOut = request;
HttpTransportSE ht = new HttpTransportSE(WEBSERVICE_URL);
ht.call(soapAction, envelope);
if (envelope.getResponse() != null) {
Object response = (Object) envelope.getResponse();
//data就是服务器返回的数据
data = response.toString().trim();
}
} catch (Exception e) {
Toast.makeText(MainActivity.this,e.getMessage(), 0).show();
}
return data;
}

}

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="X"
android:textSize="22sp" />

<EditText
android:id="@+id/x"
android:layout_width="match_parent"
android:layout_height="wrap_content" />

<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Y"
android:textSize="22sp" />

<EditText
android:id="@+id/y"
android:layout_width="match_parent"
android:layout_height="wrap_content" />

<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="click"
android:text="调用WebService" />

<TextView
android:id="@+id/tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="22sp" />

</LinearLayout>

最后注意权限，加上上网权限

代码里的服务器是暂时的，可能会失效，把里面的属性换成自己的就可以，有问题，请留言