Google bigquery 调用projectListRequest.execute()方法时出现NoSuchMethodError错误
我正在尝试使用JSP servlet开发一个简单的BigQuery应用程序。我正在遵循上给出的示例 在早期阶段,没有调用doGet方法,因此我重写了服务方法。代码如下所示Google bigquery 调用projectListRequest.execute()方法时出现NoSuchMethodError错误,google-bigquery,Google Bigquery,我正在尝试使用JSP servlet开发一个简单的BigQuery应用程序。我正在遵循上给出的示例 在早期阶段,没有调用doGet方法,因此我重写了服务方法。代码如下所示 public class BigQueryWebServerAuthDemo extends AbstractAuthorizationCodeServlet { protected void service(HttpServletRequest req, HttpServletResponse resp)
public class BigQueryWebServerAuthDemo extends AbstractAuthorizationCodeServlet {
protected void service(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
System.out.println(" Start service ");
doGet(req, resp);
}
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException {
System.out.println(" Start doGet ");
doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException {
System.out.println(" Start doPost ");
response.setContentType("text/html");
PrintWriter writer = response.getWriter();
System.out.println(" Begin loadbigquery() ");
Bigquery bigquery = CredentialUtils.loadbigquery();
System.out.println(" end loadbigquery() ");
Bigquery.Projects.List projectListRequest = bigquery.projects().list();
ProjectList projectList = projectListRequest.execute();
if (projectList.getProjects() != null) {
java.util.List<Projects> projects = projectList.getProjects();
writer.println("<h3>BigQuery project list:</h3>");
for (ProjectList.Projects project : projects) {
writer.printf("%s<br />", project.getProjectReference().getProjectId());
}
}
System.out.println(" End doPost ");
}
@Override
protected AuthorizationCodeFlow initializeFlow() throws ServletException, IOException {
System.out.println(" inside BigQueryWebServerAuthDemo --- initializeFlow() ");
return CredentialUtils.newFlow();
}
@Override
protected String getRedirectUri(HttpServletRequest request) throws ServletException, IOException {
System.out.println(" inside BigQueryWebServerAuthDemo --- getRedirectUri() ");
return CredentialUtils.getRedirectUri(request);
}
@Override
protected String getUserId(HttpServletRequest request) throws ServletException, IOException {
System.out.println(" inside BigQueryWebServerAuthDemo --- getUserId ");
return request.getParameter("userId");
}
}
我有一个JSP页面,从中获取参数userId。现在我得到了一份工作
尽管Eclipse编译器未显示任何错误,但执行方法[projectListRequest.execute]上的NoSuchMethodError错误
下面是我的web.xml配置信息
<servlet>
<servlet-name>oauth2callback</servlet-name>
<servlet-class>main.BigQueryWebServerAuthCallBack</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>oauth2callback</servlet-name>
<url-pattern>/oauth2callback</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>ServletBigQuery</servlet-name>
<servlet-class>main.BigQueryWebServerAuthDemo</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ServletBigQuery</servlet-name>
<url-pattern>/ServletBigQuery</url-pattern>
</servlet-mapping>
我还有两个类CredentialUtils和BigQueryWebServerAuthCallBack,如上面提到的教程所示
实际上,我对Java还不熟悉。我想摆脱NoSuchMethodError错误。任何帮助都将不胜感激 通过大量的谷歌搜索解决了这个问题。在项目构建过程中,几乎没有不必要的jar。一旦我移除它们,这是一个平稳的过程