java.util.logging

问题 I have an application which uses JDK Logging with a logging.properties file which configures a number of older log-file via java.util.logging.FileHandler.count. At certain points in the application I would like to trigger a manual rollover of the logfile to have a new logfile started, e.g. before a scheduled activity starts. Is this possible with JDK Logging? In Log4j I am using the following, however in this case I would like to use JDK Logging! Logger logger = Logger.getRootLogger();

问题 I have removed the property hibernate.show_sql from my EntityManager creation and want to replace it with a logging level. I am using java's logging facility. As explained in this answer I should set the log level of org.hibernate.SQL . I have tried it with my logging.properties, but it doesn't work: handlers=java.util.logging.ConsoleHandler org.hibernate.level=FINE org.hibernate.SQL.level=FINEST org.hibernate.type.level=FINER I had also tried ALL, but it makes no difference. What is wrong?

问题 We do a lot of trace logging in our WebSphere application and would like to separate some timing information in a separate log file. Usually we import: import java.util.logging.Level; import java.util.logging.Logger; And then declare: private static final Logger logger = Logger.getLogger(Myclass.class.getName()); And then log: logger.info("now logging..."); What is the simplest way of doing that? 回答1: You can use Apache logging services to create logs outside Websphere Application Server.

问题 This question already has answers here : Where does java.util.logging.Logger store their log (3 answers) Closed 5 years ago . I have created a logger using: private final static Logger logger = Logger.getLogger(newClass.class.getName()); but where can see the generated log file in my system/workspace ? 回答1: By Default, it will not write those messages into a log file. You will have to specify a file Handler to which the log messages to write. Handler handler = new FileHandler("logfile.log",

问题 This question already has answers here : Where does java.util.logging.Logger store their log (3 answers) Closed 5 years ago . I have created a logger using: private final static Logger logger = Logger.getLogger(newClass.class.getName()); but where can see the generated log file in my system/workspace ? 回答1: By Default, it will not write those messages into a log file. You will have to specify a file Handler to which the log messages to write. Handler handler = new FileHandler("logfile.log",

问题 For my java project, i am using the java logging api. I want to log everything using a property file. Before using this file (log.properties), I configured my onwn formatter in the java code. (see below) Now I want to configure my own fomatter in the propertie file, instead of the java code. does someone know how to do that ? Formatter formatter = new Formatter() { @Override public String format(LogRecord arg0) { StringBuilder b = new StringBuilder(); b.append(new Date()); b.append(" "); b

问题 This question is related to Implementing logging in a Java application, but since the example code there has made the question incredibly long, I decided to start a new question based on what I have learned so far. To illustrate what I am trying to do, I have the following example class which extends JFrame: package swingloggingsscce; import java.io.IOException; import java.util.logging.FileHandler; import java.util.logging.Level; import java.util.logging.Logger; import java.util.logging

问题 Hi all I am new to Jboss so I am get confused while setting up an logging in Jboss 6.1 what I does I have download and extract the Jboss ( jboss-eap-6.1 ) on my machine then I follow the steps given in this article but still I not able to see the logging on console or in file the I google it around and come to know that I have to write jboss-deployment-structure.xml file under /META-INF/ folder and have to add -Dorg.jboss.as.logging.per-deployment=false to the start-up of the server (which I

问题 I created a webapp that runs on Tomcat 8. As always I want to use slf4j and in this case, backed by java.util.logging (because it is the default for Tomcat). The relevant dependencies are this: <!-- logging --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.10</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-jdk14</artifactId> <version>1.7.10</version> <scope>runtime</scope> </dependency> I added some log statements

问题 According to the Spring Boot documentation, it is possible to set the logging level of multiple logging framework (jul, slf4j, etc.) just by using the Spring Boot Logging Starter and setting appropriate logging.level in application properties. Everything works fine except that the library I use is logging with jul and log level Level.FINER. However, Level.INFO is properly logged. I set level in application.properties to: logging.level.=TRACE which should log everything according to