Ebean: is NOT an Entity Bean registered with this server? - spring-boot

Question

I'm useing spring-boot and Ebean, I follow the demo from github and the pom is
https://github.com/ebean-orm-examples/example-springboot/blob/master/pom.xml
domain:
import com.avaje.ebean.Model;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name="udp_dmp_crowd")
public class Crowd extends Model{
#Id
Long crowd_id;
String crowd_name;
public String getCrowd_name() {
return crowd_name;
}
public void setCrowd_name(String crowd_name) {
this.crowd_name = crowd_name;
}
public Long getCrowd_id() {
return crowd_id;
}
public void setCrowd_id(Long crowd_id) {
this.crowd_id = crowd_id;
}
}
service:
package com.ump.dmp.service;
import com.avaje.ebean.EbeanServer;
import com.ump.dmp.domain.Crowd;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
#Service
public class CrowdService {
#Autowired
EbeanServer server;
public List<Crowd> getCrowd() {
return server.find(Crowd.class).findList();
}
}
controller:
#Controller
public class WelcomeController {
#Autowired
private CrowdService crowdService;
#RequestMapping("/")
String index(Model model) {
System.out.println(">>>>>>>>>>>>>>> Crowd List <<<<<<<<<<<<<");
List<Crowd> crowdList = crowdService.getCrowd();
for (Crowd crowd : crowdList) {
System.out.println(crowd.getCrowd_name());
}
model.addAttribute("now", LocalDateTime.now());
return "index";
}
}
use command: mvn spring-boot:run to start the app, it works
but java -jar target/demo.jar it break:
javax.persistence.PersistenceException: com.ump.dmp.domain.Crowd is NOT an Entity Bean registered with this server?
at com.avaje.ebeaninternal.server.core.DefaultServer.createQuery(DefaultServer.java:920)
at com.avaje.ebeaninternal.server.core.DefaultServer.find(DefaultServer.java:888)
at com.ump.dmp.service.CrowdService.getCrowd(CrowdService.java:21)
at com.ump.dmp.controller.WelcomeController.index(WelcomeController.java:32)
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:497)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:114)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:105)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:107)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:522)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:1110)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:785)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1425)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)

Answer 1

currently using Ebean with spring,
i had a similar issue and managed to solve it succesfully and the only thing i had to do was to rebuild the project.
By the way there are several steps you need to respect to work with Ebean:
Make sure you have enabled the proper Ebean Enhancement plugin both in you IDE and in your build manager
Make sure all the models are annotated and extend base Ebean Model
Make sure the configuration you are using to create the Ebean server is aware of where your entity models are, and i do this by adding explicity the models package to the ServerConfig object that i use to create the Ebean server
About the last point, here is the Utils class that i use to retrieve and create the Ebean server:
public class EbeanServerUtils {
public final static String MODELS_PACKAGE="com.my.package.models";
/**
* Create and return an Ebean Server using the configurations contained in the File
*
* #param name The name of the db. This is the name followed by the key datasource in the
* properties file. Ex: datasource.NAME.username=test
* usually the name is db
* #param setDefault True if this server must be setted as the default server
* #return
*/
public static EbeanServer getServer(final String name, File propertiesFile, boolean setDefault) throws IOException {
Properties properties = new Properties();
properties.load(new FileInputStream(propertiesFile));
ServerConfig config = getServerConfig(name,properties,setDefault);
EbeanServer server = EbeanServerFactory.create(config);
return server;
}
public static EbeanServer getServer(final String name, Properties properties, boolean setDefault) {
ServerConfig config = getServerConfig(name,properties,setDefault);
EbeanServer server = EbeanServerFactory.create(config);
return server;
}
private static ServerConfig getServerConfig(final String name, Properties properties, boolean setDefault) {
ServerConfig config = new ServerConfig();
config.setName(name);
config.loadFromProperties(properties);
if (setDefault) {
config.setDefaultServer(true);
config.setRegister(true);
}
config.addPackage(MODELS_PACKAGE);
return config;
}
}
and here is a tipical config file for the test environment
datasource.default=db
ebean.db.migration.run=false
ebean.migration.run=false
ebean.db.ddl.generate=false
ebean.db.ddl.run=false
datasource.db.username=username
datasource.db.password=myusernamepwd
datasource.db.databaseUrl=jdbc:h2:tcp://testmachine:9092//path/to/test/db;MODE=DB2;INIT=CREATE SCHEMA IF NOT EXISTS TESTSCHEMANAME;
datasource.db.databaseDriver=org.h2.Driver
hope it helps you,
greetings

Answer 2

I faced this problem today and I found solution for this problem that you need to specify your entity package by adding the following line in ebean.properties
ebean.search.packages=your.entity.package
Detail: here

Answer 3

Adding entity package in ebeans.properties resolved the issue.
ebean.search.packages=com.example.entities