我试图通过 ksoap2 在 android 中开发连接 MySQL 数据库 application.so 我指的是 dis site:
http://codeoncloud.blogspot.in/2012/03/android-mysql-client.html
我反复收到"02-28 06:16:40.267:调试/SntpClient(66):请求时间失败:java.net.Socket异常:地址族不是受协议支持"在我的应用程序中。
Dis是我的安卓编码:
package com.retailer.client;
import android.app.Activity;
import android.os.Bundle;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope ;
import org.ksoap2.transport.HttpTransportSE;
import android.widget.TextView;
public class RetailerActivity extends Activity {
private static final String SOAP_ACTION = "retailer.com";
private static final String METHOD_NAME = "customerData";
private static final String NAMESPACE = "retailer.com";
private static final String URL = "http://192.168.1.249:8085/Retailer/services/RetailerWS?wsdl";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
HttpTransportSE ht = new HttpTransportSE(URL);
try {
ht.call(SOAP_ACTION, envelope);
SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
SoapPrimitive s = response;
String str = s.toString();
String resultArr[] = str.split("&");//Result string will split & store in an array
TextView tv = new TextView(this);
for(int i = 0; i<resultArr.length;i++){
tv.append(resultArr[i]+"nn");
}
setContentView(tv);
} catch (Exception e) {
e.printStackTrace();
}
}
}
还在我的清单文件上添加了互联网权限。
那为什么空白屏幕只显示在我的模拟器上。当我放置网站所有者 WSDL 链接意味着它对我有用......但是我放我的网址意味着它对我不起作用..但是网站所有者 WSDL 文件和我的 WSDL 文件都只是相同的。我检查了两个文件。然后 y dis 错误 dis 来到这里,请指导我....
问题是您正在主 UI 线程上执行网络访问。如果您尝试在主线程上执行 HTTP 请求,Android 3.0 及更高版本将使应用崩溃(即系统将抛出NetworkAccessOnMainThread
异常)。您需要将 HTTP 请求包装在AsyncTask
(或某种Thread
)中,以确保不会阻止 UI 线程。
阅读我关于这个主题的博客文章: