使用GoogleAPI时出现Tomcat启动错误

Question

我对GoogleAPI有些问题。

HttpTransport transport = new NetHttpTransport();
JsonFactory jsonFactory = new JacksonFactory();

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.nio.charset.Charset;
import java.security.GeneralSecurityException;
import java.util.Arrays;
import java.util.Collections;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.google.api.client.googleapis.auth.oauth2.GoogleIdToken;
import com.google.api.client.googleapis.auth.oauth2.GoogleIdToken.Payload;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.JsonParser;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.googleapis.auth.oauth2.GoogleIdTokenVerifier;

import airbnb.dao.CustomerDAO;
import airbnb.vo.CustomerVO;


public class CustomerController extends HttpServlet{
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private static final String CLIENT_ID = "Client_id";

    @Override
    public void init() throws ServletException {




    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String mode = req.getParameter("mode");
        //String customerCheck = req.getParameter("customerName");
        System.out.println("customerCheck");





        String id_token = req.getParameter("id_token");
        System.out.println("id_token"+id_token);

        HttpTransport transport = new NetHttpTransport();//*
        JsonFactory jsonFactory = new JacksonFactory();//*


        GoogleIdTokenVerifier verifier = new GoogleIdTokenVerifier.Builder(transport, jsonFactory)
                .setAudience(Collections.singletonList(CLIENT_ID))
                // Or, if multiple clients access the backend:
                //.setAudience(Arrays.asList(CLIENT_ID_1, CLIENT_ID_2, CLIENT_ID_3))
                .build();


            GoogleIdToken idToken = null;
            try {
                idToken = verifier.verify(id_token);
            } catch (GeneralSecurityException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
                if (idToken != null) {
                    Payload payload = idToken.getPayload();

                    // Print user identifier
                    String userId = payload.getSubject();
                    System.out.println("User ID: " + userId);

                    // Get profile information from payload
                    String email = payload.getEmail();
                    boolean emailVerified = Boolean.valueOf(payload.getEmailVerified());
                    String name = (String) payload.get("name");
                    String pictureUrl = (String) payload.get("picture");
                    String locale = (String) payload.get("locale");
                    String familyName = (String) payload.get("family_name");
                    String givenName = (String) payload.get("given_name");

                    // Use or store profile information
                    // ...
                     System.out.println("User ID: " + userId);
                      System.out.println("email: " + email);
                      System.out.println("emailVerified: " + emailVerified);
                      System.out.println("name: " + name);
                      System.out.println("pictureUrl: " + pictureUrl);
                      System.out.println("locale: " + locale);
                      System.out.println("familyName: " + familyName);
                      System.out.println("givenName: " + givenName);

                } else {
                    System.out.println("Invalid ID token.");
                }   
    }
}

这是错误。

条件：jdk 1.8,Tomcat 8.5

请帮我解决这个错误。

Answer 1

检查此行：

java.lang.NoClassDefFoundError: com/google/api/client/http/HttpTransport

您需要从这里在Tomcat类路径中添加google-api-clientjar文件