如下面的屏幕截图所示,我已按照this article创建了一个Web服务(在java中)和一个客户端应用程序(android app)。
在文章和客户端应用8文件下的创建Web服务客户端部分下创建 Ant构建文件之后,我还获得了 BUILD SUCCESSFUL 消息如下图(2)所示生成。
现在,当我在客户端应用程序中编写HelloWebService service = new HelloWebService();
时,应用程序崩溃,我得到以下异常:
java.lang.NoClassDefFoundError:com.mycompany.service.client.HelloWebService
但是如果我尝试在Java应用程序中使用相同的Web服务,则可以使用:
HelloWebService service = new HelloWebService();
com.myservice.service.client.HelloWeb helloWeb = service.getHelloWebPort();
String response = helloWeb.sayGreeting(input);
我做错了吗?
任何帮助表示感谢。
虽然我使用两个应用程序的类似命令来生成所需的Web服务java文件,但两个应用程序的结构都不同。在Android应用程序中,文件是在 xml 目录下生成的。
命令是:wsimport -keep -s C:\Android\workspace\WebServiceDemo\src -p com.mycompany.service.client http://localhost:9898/HelloWeb?wsdl
HelloWebService.java
package com.mycompany.service.client;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.logging.Logger;
import javax.xml.namespace.QName;
import javax.xml.ws.Service;
import javax.xml.ws.WebEndpoint;
import javax.xml.ws.WebServiceClient;
import javax.xml.ws.WebServiceFeature;
/**
* This class was generated by the JAX-WS RI.
* JAX-WS RI 2.1.6 in JDK 6
* Generated source version: 2.1
*
*/
@WebServiceClient(name = "HelloWebService", targetNamespace = "http://service.mycompany.com/", wsdlLocation = "http://localhost:9898/HelloWeb?wsdl")
public class HelloWebService
extends Service
{
private final static URL HELLOWEBSERVICE_WSDL_LOCATION;
private final static Logger logger = Logger.getLogger(com.mycompany.service.client.HelloWebService.class.getName());
static {
URL url = null;
try {
URL baseUrl;
baseUrl = com.mycompany.service.client.HelloWebService.class.getResource(".");
url = new URL(baseUrl, "http://localhost:9898/HelloWeb?wsdl");
} catch (MalformedURLException e) {
logger.warning("Failed to create URL for the wsdl Location: 'http://localhost:9898/HelloWeb?wsdl', retrying as a local file");
logger.warning(e.getMessage());
}
HELLOWEBSERVICE_WSDL_LOCATION = url;
}
public HelloWebService(URL wsdlLocation, QName serviceName) {
super(wsdlLocation, serviceName);
}
public HelloWebService() {
super(HELLOWEBSERVICE_WSDL_LOCATION, new QName("http://service.mycompany.com/", "HelloWebService"));
}
/**
*
* @return
* returns HelloWeb
*/
@WebEndpoint(name = "HelloWebPort")
public HelloWeb getHelloWebPort() {
return super.getPort(new QName("http://service.mycompany.com/", "HelloWebPort"), HelloWeb.class);
}
/**
*
* @param features
* A list of {@link javax.xml.ws.WebServiceFeature} to configure on the proxy. Supported features not in the <code>features</code> parameter will have their default values.
* @return
* returns HelloWeb
*/
@WebEndpoint(name = "HelloWebPort")
public HelloWeb getHelloWebPort(WebServiceFeature... features) {
return super.getPort(new QName("http://service.mycompany.com/", "HelloWebPort"), HelloWeb.class, features);
}
}
的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.webservicedemo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.webservicedemo.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
答案 0 :(得分:0)
最后,在得知Android中不支持javax.*
个软件包后,我放弃了这种方法。
我使用了类似的东西:
class RequestTask extends AsyncTask<String, String, String> {
@Override
protected String doInBackground(String... uri) {
HttpClient httpclient = getNewHttpClient();
HttpResponse response;
String add = "{\"MemberNo\":\"" + uri[0] + "\"}";
HttpPost postMethod = new HttpPost(wsdl);// + add
String responseString = null;
try {
postMethod.addHeader("Content-Type", "application/json");
HttpEntity entity = new StringEntity(add);
postMethod.setEntity(entity);
response = httpclient.execute(postMethod);
StatusLine statusLine = response.getStatusLine();
if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
responseString = out.toString();
} else {
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return responseString;
}
}
感谢您的所有时间和回应!