Glassfish 3.0：部署ejb模块时发生异常...无效的ejb j ar：它包含零个ejb [英] Glassfish 3.0: Exception while deploying ejb module...Invalid ejb j ar: it contains zero ejb
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问题描述
我有一个非常简单的带有Maven的ejb 3.0模块，它只有两个会话bean，一个是无状态的，另一个是单例的...当我试图在Glassfish 3.0服务器上部署项目时，我遇到了以下异常：
I have a very simple ejb 3.0 module with maven, it has only two session beans one stateless and the other is singleton...when I am trying to deploy the project on Glassfish 3.0 server, I got this exception:
部署期间发生错误：部署应用程序时发生异常：
无效的ejb jar：它包含零ejb。注意：1.有效的ejb jar
至少需要一个会话，实体（1.x / 2.x样式）或
消息驱动的bean。 2. EJB3 +实体bean（@Entity）是POJO，
请将它们打包为库jar。 3.如果jar文件包含有效的
EJB，并用EJB组件级注释
（@ Stateless，@ Stateful，@ MessageDriven，@ Singleton）进行了注释，请检查
server.log以查看
请参阅server.log以获取更多详细信息。
Error occurred during deployment: Exception while deploying the app : Invalid ejb jar : it contains zero ejb. Note: 1. A valid ejb jar requires at least one session, entity (1.x/2.x style), or message-driven bean. 2. EJB3+ entity beans (@Entity) are POJOs and please package them as library jar. 3. If the jar file contains valid EJBs which are annotated with EJB component level annotations (@Stateless, @Stateful, @MessageDriven, @Singleton), please check server.log to see whether the annotations were processed properly.. Please see server.log for more details.
我使用Glassfish验证程序工具，我遇到了这个例外，但是我不知道该怎么办？
I verify the project with the Glassfish Verifier Tool, I got this exception, but I don't know what should I do?
Verifier output unparsable
Verifier output (C:\Users\Mariam.Moustafa\Documents\NetBeansProjects\web\EmployeesTimer\target\EmployeesTimer-1.0-SNAPSHOT.jar.xml) not found.
这是pom.xml：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.unilever</groupId>
<artifactId>EmployeesTimer</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>ejb</packaging>
<name>EmployeesTimer</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-bundle</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.2</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.2</version>
</dependency>
<!-- slf4j Logger -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.7</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.7</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ejb-plugin</artifactId>
<version>2.3</version>
<configuration>
<ejbVersion>3.1</ejbVersion>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.1</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>6.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>unknown-jars-temp-repo</id>
<name>A temporary repository created by NetBeans for libraries and jars it could not identify. Please replace the dependencies in this repository with correct ones and delete this repository.</name>
<url>file:${project.basedir}/lib</url>
</repository>
<repository>
<id>m2.dev.java.net</id>
<url>http://download.java.net/maven/2</url>
<layout>default</layout>
</repository>
<repository>
<id>prime-repo</id>
<name>PrimeFaces Maven Repository</name>
<url>http://repository.primefaces.org</url>
<layout>default</layout>
</repository>
</repositories>
</project>
我确认我有2个简单的ejb
I confirm that I have 2 simple ejb
@Stateless public class EmployeesFacade {}
@Singleton public class TimerService {
@EJB EmployeesFacade emloyeesFacade;
}
这里是代码：
第一个@singleton ejb bean
First @singleton ejb bean
package com.employeestimer.services;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
import com.unilever.employeestimer.enums.ConnectionEnum;
import com.unilever.employeestimer.exceptions.BusinessException;
import java.io.IOException;
import javax.ejb.EJB;
import javax.ejb.Schedule;
import javax.ejb.Singleton;
import javax.naming.NamingException;
import javax.ws.rs.core.MediaType;
import org.codehaus.jackson.JsonProcessingException;
import org.slf4j.LoggerFactory;
@Singleton
public class TimerService {
static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(TimerService.class);
@EJB
EmployeesFacade emloyeesFacade;
private final static String U_ENGAGE_URL = "http://..../webresources/employees/update";
@Schedule(second="*", minute="*/1",hour="*", persistent=false)
public void doWork() throws JsonProcessingException, IOException, NamingException{
try{
String input = emloyeesFacade.getUsersData(ConnectionEnum.USERNAME.getCode(), ConnectionEnum.PASSWORD.getCode());
consumeRESTfulWebService(input);
}catch(BusinessException e){
LOGGER.error("",e);
}
}
private void consumeRESTfulWebService(String input){
try {
LOGGER.debug("input = " + input);
Client client = Client.create();
WebResource webResource = client.resource(U_ENGAGE_URL);
ClientResponse response = webResource.type(MediaType.TEXT_PLAIN).post(ClientResponse.class, input);
if (response.getStatus() != ClientResponse.Status.NO_CONTENT.getStatusCode()) {
throw new RuntimeException("Failed : HTTP error code : "
+ response.getStatus());
}
LOGGER.debug("Output from Server .... \n");
} catch (Exception e) {
LOGGER.error("",e);
}
}
}
这是Facade bean ：
and here is the Facade bean:
package com.employeestimer.services;
import com.employeestimer.beans.EmployeeData;
import com.employeestimer.enums.ConfigurationsEnum;
import com.employeestimer.enums.ConnectionEnum;
import com.employeestimer.exceptions.BusinessException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import javax.ejb.Stateless;
import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.naming.ldap.Control;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;
import javax.naming.ldap.PagedResultsControl;
import javax.naming.ldap.PagedResultsResponseControl;
import org.codehaus.jackson.JsonProcessingException;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.map.ObjectWriter;
import org.slf4j.LoggerFactory;
@Stateless
public class EmployeesFacade {
static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(EmployeesFacade.class);
public String getLDAPConnectionType() {
return ConfigurationsEnum.LDAP_Connection_Type.getCode();
}
public String getDomain() {
return ConfigurationsEnum.DOMAIN.getCode();
}
public String getLDAPIP() {
return ConfigurationsEnum.LDAP_IP.getCode();
}
public String getLDAPPort() {
return ConfigurationsEnum.LDAP_PORT.getCode();
}
public String getLDAPBase() {
return ConfigurationsEnum.LDAP_BASE.getCode();
}
private LdapContext getContext(String username, String password) throws BusinessException, NamingException {
Hashtable env = new Hashtable();
if (getDomain() == null || getLDAPConnectionType() == null
|| getLDAPIP() == null || getLDAPPort() == null) {
throw new BusinessException("error_general");
}
String domain = getDomain();
String url = getLDAPConnectionType() + "://" + getLDAPIP() + ":" + getLDAPPort();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, url);
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.REFERRAL, "follow");
if (!username.contains("@")) {
username = username + "@" + domain;
}
env.put(Context.SECURITY_PRINCIPAL, username);
env.put(Context.SECURITY_CREDENTIALS, password);
return new InitialLdapContext(env, null);
}
public String getUsersData(String username, String password) throws BusinessException, JsonProcessingException, IOException, NamingException {
List<EmployeeData> employeelist = new ArrayList<EmployeeData>();
EmployeeData employee;
String json = "";
try {
LdapContext context = getContext(username, password);
SearchControls constraints = new SearchControls();
constraints.setSearchScope(SearchControls.SUBTREE_SCOPE);
String[] attrIDs = {"mail"}; //, "sn", "cn", "c", "l"};
constraints.setReturningAttributes(attrIDs);
// Activate paged results
int pageSize = Integer.parseInt(ConnectionEnum.PAGESIZE.getCode());
byte[] cookie = null;
context.setRequestControls(new Control[]{new PagedResultsControl(pageSize,
Control.NONCRITICAL)});
int total;
NamingEnumeration<SearchResult> result = null;
do {
/* perform the search */
result = context.search(getLDAPBase(), "(&(objectClass=User)(c=EG))", constraints);
/* for each entry print out name + all attrs and values */
while (result != null && result.hasMore()) {
SearchResult entry = (SearchResult) result.next();
employee = new EmployeeData();
Attribute attribute;
if (entry.getAttributes() != null) {
if (entry.getAttributes().get("mail") != null) {
attribute = entry.getAttributes().get("mail");
employee.setEmail(attribute != null ? attribute.toString().replace("mail: ", "") : "");
employeelist.add(employee);
}
}
}
// Examine the paged results control response
Control[] controls = context.getResponseControls();
if (controls != null) {
for (int i = 0; i < controls.length; i++) {
if (controls[i] instanceof PagedResultsResponseControl) {
PagedResultsResponseControl prrc = (PagedResultsResponseControl) controls[i];
total = prrc.getResultSize();
if (total != 0) {
LOGGER.debug("***************** END-OF-PAGE " + "(total : " + total + ") *****************\n");
} else {
LOGGER.debug("***************** END-OF-PAGE " + "(Page no. " + i + ") ***************\n");
}
cookie = prrc.getCookie();
}
}
} else {
LOGGER.debug("No controls were sent from the server");
}
// Re-activate paged results
context.setRequestControls(new Control[]{new PagedResultsControl(
pageSize, cookie, Control.CRITICAL)});
} while (cookie != null);
//result.close();
context.close();
ObjectWriter ow = new ObjectMapper().writer().withDefaultPrettyPrinter();
json = ow.writeValueAsString(employeelist);
LOGGER.debug("\n \n \n ************* \n ************* \n ************* \n \n THE SIZE = " + employeelist.size() + "\n \n ************* \n ************* \n ************* \n \n \n");
} catch (NamingException ex) {
String detailmessage = ex.getExplanation();
if (detailmessage.contains(" 32 ")) {
// User not Found
throw new BusinessException("error_invalidUser");
} else if (detailmessage.contains(" 49 ")) {
if (detailmessage.contains(" 775 ") || detailmessage.contains(" 701 ") || detailmessage.contains(" 533 ")) {
//Invalid Account
throw new BusinessException("error_invalidAccount");
} else {
//Invalid Username or password
throw new BusinessException("error_invalidUsernamePassword");
}
} else {
LOGGER.error("error_general", ex);
throw new BusinessException("error_general");
}
}
return json;
}
}
推荐答案
I看不到您的设置有问题。如果您确实在该项目中有一些用 @Singleton 或 @Stateless 标注的类，则应该可以使用。
I don't see a problem with your setup. If you really have some class annotated with @Singleton or @Stateless inside this project, this should work.
但重要的一点是，如果您有Glassfish库中没有的任何依赖项，则必须将它们与应用程序一起打包，而EJB / JAR打包是不可能的。您必须将其打包为WAR或EAR文件。
But one important point is that if you have any dependencies which are not available in the libs of Glassfish, you have to package them with your application which is not possible with EJB/JAR packaging. You have to package it as a WAR or EAR file.
要快速入门，请尝试以下操作：
For a quick start, try the following:
更改
<packaging>ejb</packaging>
到
<packaging>war</packaging>
并更改
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ejb-plugin</artifactId>
<version>2.3</version>
<configuration>
<ejbVersion>3.1</ejbVersion>
</configuration>
</plugin>
到
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
如果要将其打包为EAR，则可以使用 maven-ear-plugin 。
If you want to package it as an EAR, you can use the maven-ear-plugin.
另请参见
- Packaging EJB in JavaEE 6 WAR vs EAR
- Maven 2 & Packaging ejb vs jar
- Maven EJB packaging with dependent libraries
- Adam Bien - Is Java EE 6 War The New EAR?
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