【发布时间】：2017-02-14 14:24:46
【问题描述】：
我正在尝试让 Twilio 在 Dropwizard 应用程序中工作。程序可以编译，但是在引导服务器时我经常遇到以下故障。
$ sudo ./startpiservice.sh
Exception in thread "main" java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/type/ReferenceType at com.fasterxml.jackson.datatype.guava.GuavaModule.setupModule(GuavaModule.java:55 ) at com.fasterxml.jackson.databind.ObjectMapper.registerModule(ObjectMapper.java:550) at io.dropwizard.jackson.Jackson.configure(Jackson.java:54) at io.dropwizard.jackson.Jackson.newObjectMapper(Jackson.java:24) at io.dropwizard.setup.Bootstrap.<init>(Bootstrap.java:64) at io.dropwizard.Application.run(Application.java:72) at applicationconfiguration.HomeApplication.main(HomeApplication.java:71) Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.databind.type.ReferenceType at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 7 more
整个文件都可以在我的 Dropbox 上找到...对不起，我在做我的日常工作，无法访问 GitHUb 将其上传到那里。
https://www.dropbox.com/sh/or5v14uyyjplvmr/AAB4uoHdRDYLZVylUfGNotkfa?dl=0
有问题的类是 SMSResource.java，位于 \pirestservice\src\main\java\resources\SMSResource.java
代码在没有任何 Twilio 的代码语句和导入的情况下编译和运行，但是一旦我使用导入语句和代码语句，程序在引导期间就会失败。
我对使用 Maven 和 Dropwizard 比较陌生……这是依赖项冲突的问题吗？我错过了什么吗？ Twilio 代码在一个简单的独立程序中工作......但在 Dropwizard 中却不行。
~~~~~~~~~~~~~~~~~~~~~~2017 年 3 月 2 日更新~~~~~~~~~~~~~~~~~~
根据 hortega 的建议，我修改了 Maven POM 文件并编译了程序，并在部署时运行了我的服务器。除了我需要的“/sendsms”之外，所有方法调用都有效。这是POM文件、java类文件和stacktrace的一部分。
<!-- Twilio -->
<dependency>
<groupId>com.twilio.sdk</groupId>
<artifactId>twilio</artifactId>
<version>(7.0,7.9)</version>
<exclusions>
<exclusion>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
</exclusion>
<exclusion>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
</exclusion>
<exclusion>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</exclusion>
</exclusions>
</dependency>
package resources;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import javax.annotation.security.RolesAllowed;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.twilio.Twilio;
import com.twilio.rest.api.v2010.account.Message;
import com.twilio.type.PhoneNumber;
import authentication.User;
import database.AccountDAO;
import database.UserDAO;
import io.dropwizard.hibernate.UnitOfWork;
/**
* This class defines the URLs and provides the interface to HTTP requests and works
* with the class PiGpioService to set and retrieve information from the model.
*/
@Path("/smsnotification")
@RolesAllowed("ADMIN")
@Produces(MediaType.APPLICATION_XML)
@Consumes(MediaType.APPLICATION_XML)
public class SMSResource implements GpioObserver
{
private static final Logger LOGGER = LoggerFactory.getLogger(SMSResource.class);
private final AccountDAO accountDAO;
private final UserDAO userDAO;
private int count;
private Timer timer;
private boolean timerSet = false;
public SMSResource(AccountDAO accountDAO, UserDAO userDAO)
{
this.accountDAO = accountDAO;
this.userDAO = userDAO;
}
/**
* method called by GpioRepresentation class when there is a
* change in state on garage door.
* @param String state
*/
public void update(String state)
{
//if state is HIGH trigger a timer to start. Kill the timer if
//the state is low.
if(state.equals("HIGH"))
{
//conditional to prevent multiple Timer objects
if(!timerSet)
{
timer = new Timer();
int delay = (20 * 60 * 1000);
int period = (20 * 60 * 1000);
//schedule first message to be sent when door is open 20 minutes.
//then send a message every 20 minutes to a maximum of
//3 times.
MessageExecutor msgExec = new MessageExecutor();
timer.schedule(msgExec, delay, period);
timerSet = true;
}
}
else
{
//cancel timer if the garage door is closed and reset the count
timer.cancel();
count = 0;
timerSet = false;
}
}
/**
* Send an SMS text message.
* FOR TESTING ONLY
*/
@GET
@Path("/sendsms")
@UnitOfWork
public Response sendSMSMessage()
{
List<User> users;
List<TwilioAccount> accountDetails;
int index = 0;
users = userDAO.getAllUsers();
accountDetails = accountDAO.getAccountDetails();
Twilio.init(accountDetails.get(index).getSID(), accountDetails.get(index).getToken());
for(User u : users)
{
LOGGER.info("SendSMS URL Works and I can get my USER and TWILIO Details,"
+ "User {}, phone number {}, SID = {}, token = {}, from# = {}.",
u.getName(), u.getPhoneNumber(), accountDetails.get(index).getSID(), accountDetails.get(index).getToken(),
accountDetails.get(index).getPhoneNumber());
Message message = Message
.creator(new PhoneNumber(u.getPhoneNumber()), new PhoneNumber(accountDetails.get(index).getPhoneNumber()),
"This is the ship that made the Kessel Run in fourteen parsecs?")
.setMediaUrl("https://c1.staticflickr.com/3/2899/14341091933_1e92e62d12_b.jpg")
.create();
}
return Response.ok("message(s) sent").build();
}
/**
* This private (inner) class is responsible for initiating a message
* being sent every 20 minutes to alert that the garage door has been
* left open.
*/
private class MessageExecutor extends TimerTask
{
@Override
@UnitOfWork
public void run()
{
if(count < 3)
{
List<User> users;
List<TwilioAccount> accountDetails;
int index = 0;
users = userDAO.getAllUsers();
accountDetails = accountDAO.getAccountDetails();
//Twilio.init(accountDetails.get(index).getSID(), accountDetails.get(index).getToken());
for(User u : users)
{
LOGGER.info("SendSMS URL Works and I can get my USER and TWILIO Details,"
+ "User {}, phone number {}, SID = {}, token = {}, from# = {}.",
u.getName(), u.getPhoneNumber(), accountDetails.get(index).getSID(), accountDetails.get(index).getToken(),
accountDetails.get(index).getPhoneNumber());
//Message message = Message
// .creator(new PhoneNumber(u.getPhoneNumber()), new PhoneNumber(accountDetails.get(index).getPhoneNumber()),
// "This is the ship that made the Kessel Run in fourteen parsecs?")
// .setMediaUrl("https://c1.staticflickr.com/3/2899/14341091933_1e92e62d12_b.jpg")
//.create();
}
count++;
}
}
}
}
这里是堆栈跟踪/记录器的输出：
INFO [2017-03-03 02:14:29,347] authentication.BasicAuthenticator: User: Mike logged in with email: mike@xxxxxxx.ca and password: xxxxxx.
INFO [2017-03-03 02:14:29,374] org.hibernate.engine.internal.StatisticalLoggingSessionEventListener: Session Metrics {
531871 nanoseconds spent acquiring 1 JDBC connections;
0 nanoseconds spent releasing 0 JDBC connections;
5236262 nanoseconds spent preparing 1 JDBC statements;
6003028 nanoseconds spent executing 1 JDBC statements;
0 nanoseconds spent executing 0 JDBC batches;
0 nanoseconds spent performing 0 L2C puts;
0 nanoseconds spent performing 0 L2C hits;
0 nanoseconds spent performing 0 L2C misses;
0 nanoseconds spent executing 0 flushes (flushing a total of 0 entities and 0 collections);
0 nanoseconds spent executing 0 partial-flushes (flushing a total of 0 entities and 0 collections)
}
INFO [2017-03-03 02:14:29,571] resources.SMSResource: SendSMS URL Works and I can get my USER and TWILIO Details,User Mike, phone number +1xxxxxxxxxx, SID = ACxxxxxxxxxxxxx, token = 1xxxxxxxxxx5, from# = +1xxx5xx8xx9.
INFO [2017-03-03 02:14:37,092] org.hibernate.engine.internal.StatisticalLoggingSessionEventListener: Session Metrics {
526871 nanoseconds spent acquiring 1 JDBC connections;
0 nanoseconds spent releasing 0 JDBC connections;
5925736 nanoseconds spent preparing 2 JDBC statements;
6532189 nanoseconds spent executing 2 JDBC statements;
0 nanoseconds spent executing 0 JDBC batches;
0 nanoseconds spent performing 0 L2C puts;
0 nanoseconds spent performing 0 L2C hits;
0 nanoseconds spent performing 0 L2C misses;
0 nanoseconds spent executing 0 flushes (flushing a total of 0 entities and 0 collections);
29239673 nanoseconds spent executing 2 partial-flushes (flushing a total of 2 entities and 2 collections)
}
ERROR [2017-03-03 02:14:37,113] io.dropwizard.jersey.errors.LoggingExceptionMapper: Error handling a request: 0cd82e2d769a36c4
! com.twilio.exception.ApiException: java.lang.IllegalStateException
! at com.twilio.http.NetworkHttpClient.makeRequest(NetworkHttpClient.java:89)
! at com.twilio.http.HttpClient.reliableRequest(HttpClient.java:38)
! at com.twilio.http.HttpClient.reliableRequest(HttpClient.java:22)
! at com.twilio.http.TwilioRestClient.request(TwilioRestClient.java:42)
! at com.twilio.rest.api.v2010.account.MessageCreator.create(MessageCreator.java:307)
! at com.twilio.rest.api.v2010.account.MessageCreator.create(MessageCreator.java:25)
! at com.twilio.base.Creator.create(Creator.java:45)
! at resources.SMSResource.sendSMSMessage(SMSResource.java:139)
! at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
! at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
! at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
! at java.lang.reflect.Method.invoke(Method.java:498)
! at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
! at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
! at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
! at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:160)
! at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
! at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
! at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
! at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
! at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
! at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
! at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
! at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
! at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
! at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
! at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
! at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
! at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
! at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
! at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
! at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
! at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
! at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
! at io.dropwizard.jetty.NonblockingServletHolder.handle(NonblockingServletHolder.java:49)
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1689)
! at io.dropwizard.servlets.ThreadNameFilter.doFilter(ThreadNameFilter.java:34)
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1676)
! at io.dropwizard.jersey.filter.AllowedMethodsFilter.handle(AllowedMethodsFilter.java:50)
! at io.dropwizard.jersey.filter.AllowedMethodsFilter.doFilter(AllowedMethodsFilter.java:44)
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1676)
! at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)
! at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1174)
! at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
! at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1106)
! at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
! at com.codahale.metrics.jetty9.InstrumentedHandler.handle(InstrumentedHandler.java:240)
! at io.dropwizard.jetty.RoutingHandler.handle(RoutingHandler.java:51)
! at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:459)
! at io.dropwizard.jetty.BiDiGzipHandler.handle(BiDiGzipHandler.java:68)
! at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:56)
! at org.eclipse.jetty.server.handler.StatisticsHandler.handle(StatisticsHandler.java:169)
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
! at org.eclipse.jetty.server.Server.handle(Server.java:524)
! at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:319)
! at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:253)
! at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
! at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
! at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
! at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
! at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
! at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
! at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
! at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
! at java.lang.Thread.run(Thread.java:745)
192.168.1.224 - - [03/Mar/2017:02:14:37 +0000] "GET /smsnotification/sendsms HTTP/1.1" 500 110 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36" 8177
我已经受够了把头撞到墙上的夜晚......如果有人可以提供建议，请告诉我。
【问题讨论】：
标签： java twilio dropwizard