Java 使用EJB3.1进行logback
我正在使用logback/slf4j处理应用程序中的日志记录。在我开始使用EJB之前,一切都运行得很好。一旦我将无状态EJB添加到我的应用程序中,记录器就开始忽略我的logback.xml并停止使用我的appender。我切换到编程记录器配置以查看出了什么问题,现在当我尝试在EJB中使用记录器时,出现以下错误:Java 使用EJB3.1进行logback,java,glassfish,ejb-3.0,logback,slf4j,Java,Glassfish,Ejb 3.0,Logback,Slf4j,我正在使用logback/slf4j处理应用程序中的日志记录。在我开始使用EJB之前,一切都运行得很好。一旦我将无状态EJB添加到我的应用程序中,记录器就开始忽略我的logback.xml并停止使用我的appender。我切换到编程记录器配置以查看出了什么问题,现在当我尝试在EJB中使用记录器时,出现以下错误: org.slf4j.impl.JDK14LoggerFactory无法强制转换为ch.qos.logback.classic.LoggerContext 源于行: LoggerCo
org.slf4j.impl.JDK14LoggerFactory无法强制转换为ch.qos.logback.classic.LoggerContext
源于行:
LoggerContext lc=(LoggerContext)LoggerFactory.getILoggerFactory();
要让logback与EJB一起工作,是否需要任何特殊配置?如果这很重要,我将部署在glassfish v3上。这看起来与中描述的问题非常接近,我怀疑存在类似的类加载问题。由于logback加载
logback.xml
的方式(更准确地说,就是它检索类加载器的方式),它可能无法提取其配置文件,并使用默认的基本配置
不确定如何打包代码,但建议的解决方法是在EAR库中包含logback.xml
。如果您没有使用EAR打包,请尝试识别用于查看logback.xml文件放置位置的类加载器
最后,这可能是logback中的一个问题。但是没有检查他们的问题跟踪程序
更新:如果您使用war打包,请尝试配置GlassFish,以便在委派之前先使用子类装入器。在sunweb.xml
中:
<sun-web-app>
<class-loader delegate="false"/>
</sun-web-app>
SimpleServlet.java
的代码是:
package com.stackoverflow.q2418355;
import javax.ejb.Stateless;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Stateless
public class SimpleEJB {
private static Logger logger = LoggerFactory.getLogger(SimpleEJB.class);
public String sayHello(String name) {
logger.debug(">> sayHello()");
logger.debug("<< sayHello()");
return "Hello " + name + "!!!";
}
}
package com.stackoverflow.q2418355;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(urlPatterns = { "/SimpleServlet" })
public class SimpleServlet extends HttpServlet {
@EJB
SimpleEJB bean;
private static Logger logger = LoggerFactory.getLogger(SimpleServlet.class);
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
logger.debug(">> doGet()");
PrintWriter out = response.getWriter();
out.println("<html><body>");
out.println("<h2>Serving at: " + request.getContextPath() + "</h2>");
out.println("<h2>Invoking EJB: " + bean.sayHello("Duke") + "</h2>");
out.println("</body></html>");
logger.debug("<< doGet()");
}
}
<html>
<body>
<h2>Hello World!</h2>
Invoke the Servlet by clicking <a href="SimpleServlet">here</a>.
</body>
</html>
我的logback.xml
看起来像:
<?xml version="1.0" encoding="UTF-8"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>com.stackoverflow.q2418355</groupId>
<artifactId>sample</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>sample Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>0.9.18</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.5.11</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1-beta-1</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
<finalName>sample</finalName>
</build>
</project>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>
</layout>
</appender>
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<File>/tmp/logs/testFile.log</File>
<Append>true</Append>
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</Pattern>
</layout>
</appender>
<logger name="com.stackoverflow.q2418355" level="TRACE"/>
<root level="debug">
<appender-ref ref="STDOUT" />
<appender-ref ref="FILE" />
</root>
</configuration>
我也尝试过将EJB打包在自己的JAR中,并部署在WEB-INF/lib
中,得到了相同的结果,它可以正常工作。你能看出有什么明显的区别吗?可能会上传你的应用程序的简化版本(顺便说一句,bug报告很可能需要)
我在Eclipse3.5下运行GlassFish v3(使用GlassFish v3插件)。无法将org.slf4j.impl.JDK14LoggerFactory转换为ch.qos.logback.classic。LoggerContext
异常显示slf4j不绑定到logback classic,而是绑定到slf4j-jdk14。简言之,不应该责怪logback代码,因为它既没有被执行也没有被调用
看起来GFv3正在将slf4j-jdk14.jar导出到您的应用程序中,从而覆盖了您选择的日志后端,在本例中是logback。这是应用服务器无意中将其选择强加给用户的场景之一
如果GFv3确实将它的SLF4J绑定强加给最终用户,那么这就是GFv3的问题,必须由GFv3开发人员解决。我可能错了,但我认为他们认为最终用户不需要java.util.logging提供的任何其他日志功能,只需要将slf4j-jdk14捆绑到GFv3中。用户需要联系他们并抱怨他们的假设不正确。也有可能他们意识到了这个问题,并且已经提供了一个解决方案 基本上,问题在于应用程序服务器使用提供的slf4j,而您尝试使用它时会转到应用程序服务器slf4j绑定,而不是您自己想要的绑定
你就不能在Glassfish中使用slf4j绑定吗?这里是非常准确的相关代码:
登录EJB:
@Stateless
@Interceptors(LoggingInterceptor.class)
public class LoginEJB
{
@PersistenceContext(unitName = "persistence")
private EntityManager em;
public User getUser(String username)
{
try
{
Query query = em.createQuery("Select u from User u where u.userName = '" + username + "'");
User user = (User) query.getSingleResult();
return user;
} catch (NoResultException e)
{
return null;
}
}
}
我的日志代码所在的拦截器:
import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class LoggingInterceptor
{
private Logger logger = LoggerFactory.getLogger(this.getClass());
@AroundInvoke
public Object logMethod(InvocationContext ic) throws Exception
{
logger.info("[{}] Entering - {}()", ic.getTarget().toString() , ic.getMethod().getName());
try
{
return ic.proceed();
} finally
{
logger.info("[{}] Exiting - {}()", ic.getTarget().toString() , ic.getMethod().getName());
}
}
}
logback.xml文件
<configuration scan="true">
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>%d{HH:mm:ss.SSS} [%-5level] [%logger{36}] - %msg%n</Pattern>
</layout>
</appender>
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<File>c:\ItamLogs\log.txt</File>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<FileNamePattern>c:\ItamLogs\Archive\log-%d{yyyy-MM-dd}.txt</FileNamePattern>
</rollingPolicy>
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>[%-5level] - %d{HH:mm:ss.SSS} [%logger{35}] - %msg%n</Pattern>
</layout>
</appender>
<logger name="org.hibernate">
<level value="WARN"/>
</logger>
<root level="DEBUG">
<appender-ref ref="STDOUT" />
<appender-ref ref="FILE" />
</root>
</configuration>
我有一个jsf页面
<span id="submit-button">
<h:commandButton id="button-submit" value="Sign On" action="#{loginBacking.performLogin}" />
</span>
最后是我的pom
<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.test</groupId>
<artifactId>tester</artifactId>
<version>1.0/version>
<name>Code</name>
<packaging>war</packaging>
<repositories>
<repository>
<id>maven2-repository.dev.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
</repository>
<repository>
<snapshots />
<id>codecaus</id>
<name>codehaus</name>
<url>http://repository.codehaus.org</url>
</repository>
<repository>
<snapshots />
<id>ibiblio</id>
<url>http://www.ibiblio.org/maven2/</url>
</repository>
<repository>
<id>jboss</id>
<url>http://repository.jboss.com/maven2</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>jboss-snapshot</id>
<url>http://snapshots.jboss.org/maven2</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>java.net.glassfish</id>
<name>Repository hosting the jee6 artifacts</name>
<url>http://download.java.net/maven/glassfish</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>jboss-plugins</id>
<url>http://repository.jboss.com/maven2</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>jboss-snapshot-plugins</id>
<url>http://snapshots.jboss.org/maven2</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
<dependencies>
<dependency>
<groupId>javax.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>el-api</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>bean-validator</artifactId>
<version>3.0-JBoss-4.0.0.Beta3</version>
</dependency>
<dependency>
<groupId>org.glassfish.extras</groupId>
<artifactId>glassfish-embedded-all</artifactId>
<version>3.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
</dependency>
<dependency>
<groupId>javax.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<!-- JPA -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>3.5.0-CR-2</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-annotations</artifactId>
<version>3.5.0-CR-2</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-commons-annotations</artifactId>
<version>3.2.0.Beta1</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>3.5.0-CR-2</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>3.5.0-CR-2</version>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>8.4-701.jdbc4</version>
</dependency>
<!-- logging -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>0.9.18</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>0.9.18</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.5.11</version>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.0.0</version>
</dependency>
</dependencies>
<properties>
<netbeans.hint.deploy.server>gfv3ee6</netbeans.hint.deploy.server>
</properties>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.0</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.0</version>
</plugin>
</plugins>
</build>
</project>
4.0.0
com.test
测试员
1.0/版本>
代码
战争
maven2-repository.dev.java.net
Maven的Java.net存储库
http://download.java.net/maven/2/
编解码器
科德豪斯
http://repository.codehaus.org
书志目录
http://www.ibiblio.org/maven2/
jboss
http://repository.jboss.com/maven2
真的
假的
jboss快照
http://snapshots.jboss.org/maven2
真的
真的
java.net.glassfish
托管jee6工件的存储库
http://download.java.net/maven/glassfish
jboss插件
http://repository.jboss.com/maven2
真的
假的
jboss快照插件
http://snapshots.jboss.org/maven2
真的
真的
javax.faces
JSFAPI
2
假如
javax.servlet
servlet api
2.5
假如
javax.el
埃尔api
1
假如
javax.validation
验证api
1.0.0.GA
玻璃鱼
bean验证器
3.0-JBoss-4.0.0.Beta3
org.glassfish.extras
玻璃鱼嵌入所有
3
测试
爪哇
JavaEEAPI
6.0-快照
朱尼特
朱尼特
4.7
javax.faces
JSFAPI
2
假如
org.hibernate
冬眠核心
3.5.0-CR-2
org.hibernate
H
@ManagedBean
public class LoginBacking extends AbstractBacking
{
@NotEmpty(message = "User Name required.")
private String username;
@NotEmpty(message = "Password required.")
private String password;
@EJB
private LoginEJB loginEJB;
public String getPassword()
{
return password;
}
public void setPassword(String password)
{
this.password = password;
}
public String getUsername()
{
return username;
}
public void setUsername(String username)
{
this.username = username;
}
public String performLogin()
{
String result = "login";
User user = loginEJB.getUser(username);
if(null == user || !user.getPassword().equals(password))
{
this.getFacesContext().addMessage("login-form:button-submit", new FacesMessage("The User Name or Password entered is incorrect."));
return result;
}
this.setCurrentUser(user);
result = "success";
return result;
}
}
<span id="submit-button">
<h:commandButton id="button-submit" value="Sign On" action="#{loginBacking.performLogin}" />
</span>
<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.test</groupId>
<artifactId>tester</artifactId>
<version>1.0/version>
<name>Code</name>
<packaging>war</packaging>
<repositories>
<repository>
<id>maven2-repository.dev.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
</repository>
<repository>
<snapshots />
<id>codecaus</id>
<name>codehaus</name>
<url>http://repository.codehaus.org</url>
</repository>
<repository>
<snapshots />
<id>ibiblio</id>
<url>http://www.ibiblio.org/maven2/</url>
</repository>
<repository>
<id>jboss</id>
<url>http://repository.jboss.com/maven2</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>jboss-snapshot</id>
<url>http://snapshots.jboss.org/maven2</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>java.net.glassfish</id>
<name>Repository hosting the jee6 artifacts</name>
<url>http://download.java.net/maven/glassfish</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>jboss-plugins</id>
<url>http://repository.jboss.com/maven2</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>jboss-snapshot-plugins</id>
<url>http://snapshots.jboss.org/maven2</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
<dependencies>
<dependency>
<groupId>javax.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>el-api</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>bean-validator</artifactId>
<version>3.0-JBoss-4.0.0.Beta3</version>
</dependency>
<dependency>
<groupId>org.glassfish.extras</groupId>
<artifactId>glassfish-embedded-all</artifactId>
<version>3.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
</dependency>
<dependency>
<groupId>javax.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<!-- JPA -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>3.5.0-CR-2</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-annotations</artifactId>
<version>3.5.0-CR-2</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-commons-annotations</artifactId>
<version>3.2.0.Beta1</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>3.5.0-CR-2</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>3.5.0-CR-2</version>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>8.4-701.jdbc4</version>
</dependency>
<!-- logging -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>0.9.18</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>0.9.18</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.5.11</version>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.0.0</version>
</dependency>
</dependencies>
<properties>
<netbeans.hint.deploy.server>gfv3ee6</netbeans.hint.deploy.server>
</properties>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.0</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.0</version>
</plugin>
</plugins>
</build>
</project>