- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
使用 WildFly 9.0.2 最终版本,<hornetq-server>
部分在 standalone-full.xml
中定义如下。
像 <address-settings>
这样的部分, <acceptors>
和 <connectors>
完全省略了,因为我没有更改其中的任何内容。
<hornetq-server>
<security-domain>ProjectRealm</security-domain>
<security-enabled>true</security-enabled>
<journal-file-size>102400</journal-file-size>
<security-settings>
<security-setting match="#">
<permission type="send" roles="ROLE_USER ROLE_ADMIN"/>
<permission type="consume" roles="ROLE_USER ROLE_ADMIN"/>
<permission type="createDurableQueue" roles="ROLE_USER ROLE_ADMIN"/>
<permission type="deleteDurableQueue" roles="ROLE_USER ROLE_ADMIN"/>
<permission type="createNonDurableQueue" roles="ROLE_USER ROLE_ADMIN"/>
<permission type="deleteNonDurableQueue" roles="ROLE_USER ROLE_ADMIN"/>
</security-setting>
</security-settings>
<jms-connection-factories>
<connection-factory name="destinationFactory">
<connectors>
<connector-ref connector-name="http-connector"/>
</connectors>
<entries>
<entry name="java:jboss/exported/jms/destinationFactory"/>
</entries>
</connection-factory>
</jms-connection-factories>
<jms-destinations>
<jms-queue name="userStatusQueue">
<entry name="jms/destination"/>
<entry name="java:jboss/exported/jms/destination"/>
</jms-queue>
</jms-destinations>
</hornetq-server>
destinationFactory
的连接工厂。使用
http-connector
和一个名为
userStatusQueue
的队列绑定(bind)到嵌套
<entry>
中列出的 JNDI 名称元素。
<security-domain>ProjectRealm</security-domain>
<security-enabled>true</security-enabled>
15:49:28,093 WARNING [javax.enterprise.resource.webcontainer.jsf.lifecycle] (default task-2) java.lang.RuntimeException: javax.jms.JMSSecurityRuntimeException: HQ119032: User: null doesnt have permission=SEND on address {2}: javax.el.ELException: java.lang.RuntimeException: javax.jms.JMSSecurityRuntimeException: HQ119032: User: null doesnt have permission=SEND on address {2}
at com.sun.el.parser.AstValue.invoke(AstValue.java:296)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:149)
at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:814)
at javax.faces.component.UICommand.broadcast(UICommand.java:300)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:658)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:78)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
at io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:151)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
at org.omnifaces.facesviews.FacesViewsForwardingFilter.filterExtensionLess(FacesViewsForwardingFilter.java:128)
at org.omnifaces.facesviews.FacesViewsForwardingFilter.doFilter(FacesViewsForwardingFilter.java:89)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
at filter.LoginNocacheFilter.doFilter(LoginNocacheFilter.java:32)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
at org.omnifaces.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:122)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:108)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:51)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:56)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:199)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: javax.jms.JMSSecurityRuntimeException: HQ119032: User: null doesnt have permission=SEND on address {2}
at io.undertow.servlet.spec.RequestDispatcherImpl.forwardImpl(RequestDispatcherImpl.java:219)
at io.undertow.servlet.spec.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:108)
at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:643)
at admin.bean.SignInCheck.signIn(SignInCheck.java:63)
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 com.sun.el.parser.AstValue.invoke(AstValue.java:292)
... 64 more
Caused by: javax.jms.JMSSecurityRuntimeException: HQ119032: User: null doesnt have permission=SEND on address {2}
at org.hornetq.jms.client.JmsExceptionUtils.convertToRuntimeException(JmsExceptionUtils.java:76)
at org.hornetq.jms.client.HornetQJMSProducer.send(HornetQJMSProducer.java:112)
at org.hornetq.jms.client.HornetQJMSProducer.send(HornetQJMSProducer.java:135)
at filter.SecurityCheck.sendMessageToDestination(SecurityCheck.java:54)
at filter.SecurityCheck.doAfterProcessing(SecurityCheck.java:107)
at filter.SecurityCheck.doFilter(SecurityCheck.java:161)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchToPath(ServletInitialHandler.java:198)
at io.undertow.servlet.spec.RequestDispatcherImpl.forwardImpl(RequestDispatcherImpl.java:195)
... 72 more
Caused by: javax.jms.JMSSecurityException: HQ119032: User: null doesnt have permission=SEND on address {2}
at org.hornetq.core.protocol.core.impl.ChannelImpl.sendBlocking(ChannelImpl.java:399)
at org.hornetq.core.client.impl.ClientProducerImpl.sendRegularMessage(ClientProducerImpl.java:334)
at org.hornetq.core.client.impl.ClientProducerImpl.doSend(ClientProducerImpl.java:304)
at org.hornetq.core.client.impl.ClientProducerImpl.send(ClientProducerImpl.java:135)
at org.hornetq.jms.client.HornetQMessageProducer.doSendx(HornetQMessageProducer.java:524)
at org.hornetq.jms.client.HornetQMessageProducer.send(HornetQMessageProducer.java:210)
at org.hornetq.jms.client.HornetQMessageProducer.send(HornetQMessageProducer.java:200)
at org.hornetq.jms.client.HornetQJMSProducer.send(HornetQJMSProducer.java:107)
... 87 more
Caused by: HornetQSecurityException[errorType=SECURITY_EXCEPTION message=HQ119032: User: null doesnt have permission=SEND on address {2}]
... 95 more
<security-enabled>
给出
false
值(value)。但是,我只需要具有预定义权限/角色(
ROLE_ADMIN
或
ROLE_USER
)的用户来创建队列并发送消息。
<security-domain>
的方法如上所示,除上述异常外,失败。
/standalone/configuration/application-roles.properties
中添加角色完全符合
ProjectRealm.properties
中的定义使用的文件
<module-option name="rolesProperties"
value="file:${jboss.server.config.dir}/ProjectRealm.properties"/>
<login-module>
但这也无济于事。
admins=ROLE_ADMIN
users=ROLE_USER
<security-domain name="ProjectRealm" cache-type="default">
<authentication>
<login-module code="Database" flag="required">
<module-option name="dsJndiName" value="java:jboss/datasources/projectXADatasource"/>
<module-option name="principalsQuery" value="SELECT password FROM user_table WHERE email_id=?"/>
<module-option name="rolesQuery" value="SELECT user_role, 'Roles' FROM user_roles ur INNER JOIN user_table ut ON ur.user_id=ut.user_id WHERE ut.email_id=?"/>
<module-option name="hashAlgorithm" value="SHA-256"/>
<module-option name="hashEncoding" value="hex"/>
<module-option name="hashCharset" value="UTF-8"/>
<module-option name="hashStorePassword" value="false"/>
<module-option name="unauthenticatedIdentity" value="guest"/>
</login-module>
<login-module code="RoleMapping" flag="required">
<module-option name="rolesProperties" value="file:${jboss.server.config.dir}/ProjectRealm.properties"/>
<module-option name="replaceRole" value="false"/>
</login-module>
</authentication>
</security-domain>
JMSContext
使用的身份验证 Servlet 过滤器中。在用户成功通过身份验证和授权后,通过队列发送消息。
@WebFilter(filterName = "SecurityCheck", urlPatterns = {"/WEB-INF/jaas/*"}, dispatcherTypes = {DispatcherType.FORWARD})
public final class SecurityCheck implements Filter {
@Resource(lookup = "java:/jms/destination")
private Queue queue;
@Inject
@JMSConnectionFactory("java:jboss/exported/jms/destinationFactory")
private JMSContext context;
// jms/destinationFactory is expected to work here but it only works using the fully qualified namespace as above.
public SecurityCheck() {}
private void sendMessageToDestination(String message) throws JMSException {
context.createProducer().send(queue, message);
}
private void doBeforeProcessing(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
String userName = request.getParameter("userName");
request.login(userName.trim(), request.getParameter("password"));
}
private void doAfterProcessing(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException, JMSException {
if (request.isUserInRole("ROLE_ADMIN")) {
sendMessageToDestination("Message");
// Redirect to a secure area.
} else if (request.isUserInRole("ROLE_USER")) {
sendMessageToDestination("Message");
// Redirect to a secure area.
}
//...
}
//...
}
https://localhost:8443/ContextPath
用于访问安全的网络资源
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
在
web.xml
.
@JMSDestinationDefinition(name = "destination", interfaceName = "javax.jms.Queue", resourceAdapter = "jmsra", destinationName = "destination")
@MessageDriven(activationConfig = {
@ActivationConfigProperty(propertyName = "destinationLookup", propertyValue = "jms/destination"),
@ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
@ActivationConfigProperty(propertyName = "connectionFactoryLookup", propertyValue = "java:jboss/exported/jms/destinationFactory"),
@ActivationConfigProperty(propertyName = "messagingType", propertyValue = "javax.jms.MessageListener"),
@ActivationConfigProperty(propertyName = "destination", propertyValue = "java:/jms/destination"),
@ActivationConfigProperty(propertyName = "useJNDI", propertyValue = "true")
})
public class UserStatusMessageBean implements MessageListener {
public UserStatusMessageBean() {}
@Resource
private MessageDrivenContext messageDrivenContext;
@EJB
private UserStatusService userStatusService;
@Override
public void onMessage(Message message) {
try {
if (message instanceof TextMessage) {
TextMessage textMessage = (TextMessage) message;
String text = textMessage.getText();
if (StringUtils.isNotBlank(text)) {
userStatusService.addHost(text);
} else {
System.out.println("No message found.");
}
} else {
System.out.println("Message is of wrong type : " + message.getClass().getName());
}
} catch (JMSException e) {
messageDrivenContext.setRollbackOnly();
System.out.println(e);
} catch (Throwable e) {
System.out.println(e);
}
}
}
@Stateless
@DeclareRoles(value = {"ROLE_ADMIN", "ROLE_USER"})
@RolesAllowed(value = {"ROLE_ADMIN", "ROLE_USER"})
public class UserStatusBean implements UserStatusService {
@PersistenceContext
private EntityManager entityManager;
@Override
public void addHost(String hostName) {
// Insert or update via JPA.
}
}
false
值给出,
<security-enabled>false</security-enabled>
20:21:55,343 ERROR [org.hornetq.ra] (default-threads - 3) HQ154003: Unable to reconnect org.hornetq.ra.inflow.HornetQActivationSpec(ra=org.hornetq.ra.HornetQResourceAdapter@dc9e56 destination=java:/jms/destination destinationType=javax.jms.Queue ack=Auto-acknowledge durable=false clientID=null user=null maxSession=15): HornetQSecurityException[errorType=SECURITY_EXCEPTION message=HQ119032: User: null doesnt have permission=CONSUME on address {2}]
at org.hornetq.core.protocol.core.impl.ChannelImpl.sendBlocking(ChannelImpl.java:399)
at org.hornetq.core.client.impl.ClientSessionImpl.internalCreateConsumer(ClientSessionImpl.java:2064)
at org.hornetq.core.client.impl.ClientSessionImpl.createConsumer(ClientSessionImpl.java:527)
at org.hornetq.core.client.impl.ClientSessionImpl.createConsumer(ClientSessionImpl.java:474)
at org.hornetq.core.client.impl.DelegatingSession.createConsumer(DelegatingSession.java:206)
at org.hornetq.ra.inflow.HornetQMessageHandler.setup(HornetQMessageHandler.java:184)
at org.hornetq.ra.inflow.HornetQActivation.setup(HornetQActivation.java:340)
at org.hornetq.ra.inflow.HornetQActivation.handleFailure(HornetQActivation.java:768)
at org.hornetq.ra.inflow.HornetQActivation$SetupActivation.run(HornetQActivation.java:823)
at org.jboss.jca.core.workmanager.WorkWrapper.run(WorkWrapper.java:226)
at org.jboss.threads.SimpleDirectExecutor.execute(SimpleDirectExecutor.java:33)
at org.jboss.threads.QueueExecutor.runTask(QueueExecutor.java:808)
at org.jboss.threads.QueueExecutor.access$100(QueueExecutor.java:45)
at org.jboss.threads.QueueExecutor$Worker.run(QueueExecutor.java:828)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
最佳答案
我在 WildFly 9.0.2 上重现了相同的问题(使用 REST EJB 资源而不是您的 Servlet)
23:31:22,138 ERROR [io.undertow.request] (default task-7) UT005023: Exception handling request to /jeeshop-admin/rs/users/administrators: org.jboss.resteasy.spi.UnhandledException: javax.jms.JMSSecurityException: HQ119032: User: null doesnt have permission=SEND on address {2}
at org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:76)
@Resource(mappedName = "java:jboss/exported/jms/destinationFactory")
ConnectionFactory factory;
private void sendMessageToDestination(String message, String user) throws JMSException {
try (Connection connection = factory.createConnection(user,"hardcodedPassword");
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer producer = session.createProducer(queue)) {
TextMessage textMessage = session.createTextMessage(message);
producer.send(textMessage);
}
}
<security-domain name="jeeshop" cache-type="default">
<authentication>
<login-module code="Database" flag="required">
<module-option name="dsJndiName" value="java:/JeeshopDS"/>
<module-option name="principalsQuery" value="select password from User where login = ? and (disabled is null or disabled = 0) and activated = 1"/>
<module-option name="rolesQuery" value="select name,'Roles' from Role r, User_Role ur, User u where u.login=? and u.id = ur.userId and r.id = ur.roleId"/>
<module-option name="hashAlgorithm" value="SHA-256"/>
<module-option name="hashEncoding" value="base64"/>
<module-option name="unauthenticatedIdentity" value="guest"/>
</login-module>
</authentication>
</security-domain>
<xa-datasource jndi-name="java:/JeeshopDS" pool-name="JeeshopDS" enabled="true">
<xa-datasource-property name="ServerName">
localhost
</xa-datasource-property>
<xa-datasource-property name="DatabaseName">
jeeshop
</xa-datasource-property>
<driver>mysql</driver>
<security>
<user-name>jeeshop</user-name>
<password>test</password>
</security>
<validation>
<valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLValidConnectionChecker"/>
<exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLExceptionSorter"/>
</validation>
</xa-datasource>
CREATE TABLE IF NOT EXISTS Role (
id bigint(20) NOT NULL AUTO_INCREMENT,
name varchar(255) NOT NULL,
PRIMARY KEY (id),
UNIQUE KEY UK_Role_name (name)
);
CREATE TABLE IF NOT EXISTS User_Role (
userId bigint(20) NOT NULL,
roleId bigint(20) NOT NULL,
PRIMARY KEY (userId,roleId)
);
sendMessageToDestination()
的目的地。产生消息:
@MessageDriven(activationConfig = {
@ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
@ActivationConfigProperty(propertyName = "useJNDI", propertyValue = "true"),
@ActivationConfigProperty(propertyName = "destination", propertyValue = "java:jboss/exported/jms/destination"),
@ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge")})
public class TestMDB implements MessageListener {
@Override
@PermitAll
public void onMessage(Message message) {
if (message instanceof TextMessage) {
try {
System.out.println(((TextMessage) message).getText());
} catch (JMSException e) {
// propagate for transaction rollback
throw new IllegalArgumentException(e);
}
}
}
}
关于jakarta-ee - JAAS 身份验证在 JMS 中使用 WildFly : javax. jms.JMSSecurityException:HQ119032:用户:null 没有权限 = 在地址 {2} 上发送,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33970295/
我正在尝试关注 this tutorial .我想我不是从使用可下载项目开始,而是从我之前做过的一个简单的“spring MVC - Maven - eclipse”项目开始。这个项目运行良好。 因此
我觉得 Java EE 6 规范有些困惑。有几组注释。 我们有javax.ejb注释如 @Stateful和 @Stateless用于创建 EJB。 还有一个@javax.annotation.Man
我正在开发一个依赖于“javax.lang”和“javax.annotation”的java项目。我安装了jre/jdk,类路径上还有很多其他javax.*,我每天都用Java进行开发。但是,这两个包
我正在尝试将一个值添加到 JsonValue 列表中。可以这样做吗? 一些背景知识,我正在从 Rest API 检索 Json 响应,在此 Json 中是一个如下名称列表: { “名称”:{名称1,名
我正在开发一个 JSF2、Icefaces 网络应用程序。我有以下看法: 当我保存上面的 时出现以下异常. Application caught instance of
我遇到了一个小问题,我的代码中有一个异常。 我有一个基本框架类: import java.awt.BorderLayout; import java.awt.Color; import java.aw
我正在使用 Apache Derby 并具有以下代码: DBConnectionFactory.java package edu.unsw.comp9321.jdbc; import java.sql
javax.mail 和 javax.mail-api 有什么区别? 我从 maven 存储库中找到了那些。 什么时候应该使用它们? javax.mail-api自带的软件包,但我无法使用,所以我下载
我是 Java 的新手,正在尝试进入 WebServices。我在某处找到了两个示例,但对可用选项感到困惑。 首先,带注解的javax.jws.WebService 似乎工作正常,但javax.xml
在升级了一些 Glassfish/Grizzly 依赖项之后(为了与最新版本的 Azure SDK IOT 设备客户端兼容),我开始出现错误,因为 com.google.common.EventBus
我收到了一个遗留 JSP 系统,其中 Eclipse 在每次出现以下代码时都会标记“导入 javax.event 无法解析”错误: 这是我的java版本: shakir@anduril:~$ jav
我使用以下代码获取连接到系统的 USB 设备的制造商代码。我添加了 jsr80-1.0.1 jar 。我收到以下错误 javax.usb.UsbException: Properties file j
我正在学习 EJB,当尝试使用 junit 测试它时,出现以下错误 cd.espoirmur.Ejb.InterfaceEjbLocal_80488159 Jun 03, 2016 10:33:58
我必须处理一个需要提供数据源作为参数的 API。问题是我从提供 EntityManager 或 PersistentContext 的上下文访问它,它们似乎没有通过其方法公开任何数据源。如何以编程方式
据我所知,Java ServletContext 和上下文对象在 Java EE 程序开发中很常见。但是,我不太确定它们之间有什么区别,尤其是上下文类的用法。 据我了解,ServletContext
我在一个简单的 tomcat jsp 项目中遇到了这个错误。我在谷歌上阅读的文章暗示我应该在我的项目中包含 servlet-api.jar。我就是这样做的,但没有用。有人对此有任何想法吗?我的 JRE
我想对我的实体进行一些 Bean 验证,以便我可以适本地映射错误以发送回客户端。 我知道 javax.validation.constraints 注释用于实现此目的。我的问题是,对于模式生成,我需要
想法:2018.3 jetty :9.4.11 我按照 IDEA 中给出的说明下载了 jrebel 文件夹 在 Debug模式下运行 Jetty 服务器时出现以下错误。 HTTP ERROR 500
我正在开发一个主要使用无状态 session bean (SLSB) 的 EJB3 应用程序。他们使用容器管理事务 (CMT)。 我希望 bean 知道事务(用于日志记录等)。我可以实现 javax.
我正在使用 OSGI 开发 Web 应用程序。我有一个我找不到的 Maven 配置错误。这是完整的源代码: http://uploading.com/files/8e5c9888/SH_27_test
我是一名优秀的程序员,十分优秀!