问题描述
我不熟悉Java进行Web开发，并且正在学习使用Java进行Web应用程序的课程。 我一直在尝试获取用于正常运行的软件套件，但无法做到这一点。我们的第一个示例Java脚本使用时间函数来获取当前日期时间：
package managed_bean;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import javax.inject.Named;
import javax.enterprise.context.RequestScoped;
@Named(value = "timeUtility")
@RequestScoped
public class TimeUtility {
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss.SSS");
public String getCurrentTime(){
return sdf.format(Calendar.getInstance().getTime());
}
}
然后将时间传递到Glassfish服务器，并在.xhtml文件中将其输出如下：
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html">
<h:head>
<title>Simple Example</title>
</h:head>
<h:body>
<h1>Simple Date Example</h1>
<h2>Current Time:
<h:outputText value="#{timeUtility.currentTime}" />
</h2>
</h:body>
</html>
但是在浏览器中我只能看到：
Glassfish服务器的Netbeans日志输出：
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=192m; support was removed in 8.0
Launching GlassFish on Felix platform
INFO: Create bundle provisioner class = class com.sun.enterprise.glassfish.bootstrap.osgi.BundleProvisioner.
WARNING: Skipping entry because it is not an absolute URI.
WARNING: Skipping entry because it is not an absolute URI.
Registered com.sun.enterprise.glassfish.bootstrap.osgi.EmbeddedOsgiGlassFishRuntime@73cd30dc in service registry.
#!## LogManagerService.postconstruct : rootFolder=/home/alex/GlassFish_Server/glassfish
#!## LogManagerService.postconstruct : templateDir=/home/alex/GlassFish_Server/glassfish/lib/templates
#!## LogManagerService.postconstruct : src=/home/alex/GlassFish_Server/glassfish/lib/templates/logging.properties
#!## LogManagerService.postconstruct : dest=/home/alex/GlassFish_Server/glassfish/domains/domain1/config/logging.properties
Running GlassFish Version: GlassFish Server Open Source Edition 5.1.0 (build default-private)|#]
Server log file is using Formatter class: com.sun.enterprise.server.logging.ODLLogFormatter|#]
Realm [admin-realm] of classtype [com.sun.enterprise.security.auth.realm.file.FileRealm] successfully created.|#]
Realm [file] of classtype [com.sun.enterprise.security.auth.realm.file.FileRealm] successfully created.|#]
Realm [certificate] of classtype [com.sun.enterprise.security.auth.realm.certificate.CertificateRealm] successfully created.|#]
Registered org.glassfish.ha.store.adapter.cache.ShoalbackingStoreProxy for persistence-type = replicated in backingStoreFactoryRegistry|#]
Authorization Service has successfully initialized.|#]
JTS5014: Recoverable JTS instance,serverId = [100]|#]
Grizzly Framework 2.4.4 started in: 22ms - bound to [/0.0.0.0:8080]|#]
Grizzly Framework 2.4.4 started in: 0ms - bound to [/0.0.0.0:8181]|#]
Grizzly Framework 2.4.4 started in: 1ms - bound to [/0.0.0.0:4848]|#]
Exception while visiting WEB-INF/classes/managed_bean/TimeUtility.class of size 859
java.lang.IllegalArgumentException
at org.glassfish.hk2.external.org.objectweb.asm.ClassReader.<init>(ClassReader.java:160)
at org.glassfish.hk2.external.org.objectweb.asm.ClassReader.<init>(ClassReader.java:143)
at org.glassfish.hk2.external.org.objectweb.asm.ClassReader.<init>(ClassReader.java:418)
at org.glassfish.hk2.classmodel.reflect.Parser$5.on(Parser.java:335)
at com.sun.enterprise.v3.server.ReadableArchiveScannerAdapter.handleEntry(ReadableArchiveScannerAdapter.java:141)
at com.sun.enterprise.v3.server.ReadableArchiveScannerAdapter.onSelectedEntries(ReadableArchiveScannerAdapter.java:103)
at org.glassfish.hk2.classmodel.reflect.Parser.doJob(Parser.java:321)
at org.glassfish.hk2.classmodel.reflect.Parser.access$300(Parser.java:44)
at org.glassfish.hk2.classmodel.reflect.Parser$3.call(Parser.java:280)
at org.glassfish.hk2.classmodel.reflect.Parser$3.call(Parser.java:269)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
|#]
Grizzly Framework 2.4.4 started in: 0ms - bound to [/0.0.0.0:3700]|#]
visiting unvisited references|#]
Java security manager is disabled.|#]
Entering Security Startup Service.|#]
Loading policy provider com.sun.enterprise.security.provider.PolicyWrapper.|#]
Security Service(s) started successfully.|#]
Created HTTP listener http-listener-1 on host/port 0.0.0.0:8080|#]
Created HTTP listener http-listener-2 on host/port 0.0.0.0:8181|#]
Created HTTP listener admin-listener on host/port 0.0.0.0:4848|#]
Created virtual server server|#]
Created virtual server __asadmin|#]
Setting JAAS app name glassfish-web|#]
Virtual server server loaded default web module |#]
visiting unvisited references|#]
visiting unvisited references|#]
visiting unvisited references|#]
visiting unvisited references|#]
Initializing Mojarra 2.3.9 for context '/WebApplication1'|#]
HV000001: Hibernate Validator 6.0.10.Final|#]
Loading application [WebApplication1] at [/WebApplication1]|#]
Loading application WebApplication1 done in 2,566 ms|#]
GlassFish Server Open Source Edition 5.1.0 (default-private) startup time : Felix (2,090ms),startup services(2,969ms),total(5,059ms)|#]
Grizzly Framework 2.4.4 started in: 1ms - bound to [/0.0.0.0:7676]|#]
Registered com.sun.enterprise.glassfish.bootstrap.osgi.EmbeddedOsgiGlassFishImpl@23ee75c5 as Osgi service registration: org.apache.Felix.framework.ServiceRegistrationImpl@11a7ba62.|#]
visiting unvisited references|#]
JMXStartupService has started JMXConnector on JMXService URL service:jmx:rmi://penguin:8686/jndi/rmi://penguin:8686/jmxrmi|#]
visiting unvisited references|#]
visiting unvisited references|#]
visiting unvisited references|#]
Initializing Mojarra 2.3.9 for context ''|#]
Loading application [__admingui] at [/]|#]
Loading application __admingui done in 1,957 ms|#]
Listening to REST requests at context: /management/domain.|#]
Context path from ServletContext: differs from path from bundle: /|#]
Created HTTP listener http-listener-2 on host/port 0.0.0.0:8181|#]
Grizzly Framework 2.4.4 started in: 3ms - bound to [/0.0.0.0:8181]|#]
Created HTTP listener http-listener-1 on host/port 0.0.0.0:8080|#]
Grizzly Framework 2.4.4 started in: 8ms - bound to [/0.0.0.0:8080]|#]
使用的环境和软件：
- 操作系统：Ubuntu 20 Desktop
- NetBeans 12
- Java版本8.1（1.8.0_272）
- Glasshfish服务器（通过netbeans IDE下载）版本4.1和5.1
其他详细信息： 有人告诉我使用Java 8.1，而不是最新版本。 我也会在Ubuntu桌面上配置全栈AMP服务器，如果这可能会造成干扰的话。 我可以通过Netbeans毫无问题地访问和使用MysqL数据库。
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
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