JavaのGoogle APIとStrutsの比較

Question

通常のJavaプロジェクトを使用してGoogleアカウントのトークンを取得するには以下の方法を使用しても問題ありませんが、同じコードをStrutsプロジェクトで使用すると、 ClassNotFoundException。誰かが例外をスローしている理由を教えてもらえますか？迷っています。

public String Login(String username,String password){ 
    String token = null; 
    HttpClient client = new DefaultHttpClient(); 
    String postURL = "https://www.google.com/accounts/ClientLogin"; 
    HttpPost post = new HttpPost(postURL); 
    List<NameValuePair> nvps = new ArrayList<NameValuePair>(); 
    nvps.add(new BasicNameValuePair("accountType", "HOSTED_OR_GOOGLE")); 
    nvps.add(new BasicNameValuePair("Email", username)); 
    nvps.add(new BasicNameValuePair("Passwd", password)); 
    nvps.add(new BasicNameValuePair("service", "cp"));// Name of Google service 
    nvps.add(new BasicNameValuePair("source", "feras-MeAndTheGreenRobot-1.0")); 
    UrlEncodedFormEntity ent; 
    try { 
      ent = new UrlEncodedFormEntity(nvps, HTTP.UTF_8); 
      post.setEntity(ent); 
      HttpResponse responsePOST = client.execute(post); 
      HttpEntity resEntity = responsePOST.getEntity(); 
      if (resEntity != null) { 
         String authToken= EntityUtils.toString(resEntity); 
        System.out.println("RESPONSE is "+ authToken); 
token = authToken.substring(authToken.indexOf("Auth=") + 5, authToken.length()).trim(); 
        System.out.println("Auth is "+ authToken.substring(authToken.indexOf("Auth=") + 5, authToken.length()).trim()); 
      } 
    } catch (UnsupportedEncodingException e) { 
      e.printStackTrace(); 
    } catch (ClientProtocolException e) { 
      e.printStackTrace(); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } 
    return token; 
} 

例外

java.lang.ClassNotFoundException: org.apache.http.client.ClientProtocolException 
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701) 
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546) 
at com.struts.action.LoginAction.submit(LoginAction.java:85) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:404) 
at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:267) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:229) 
at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:221) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) 
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224) 
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223) 
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221) 
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150) 
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) 
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224) 
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223) 
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221) 
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123) 
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224) 
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223) 
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221) 
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:184) 

Answer 1

は、あなたのWebプロジェクトの"WEB-INF/lib"フォルダの下にHttpClientが使用するJARライブラリファイルを置くのですか？