小编use*_*377的帖子

我想为我的项目的每个类的每个记录器添加一个自定义处理程序。我有一个 logging.properties 文件，它在最开始时使用：

try (InputStream in = ReportingService.class.getResourceAsStream("logging.properties")) {
    LogManager.getLogManager().readConfiguration(in);
} catch (IOException ex) {
    Logger.getLogger(myClass.class.getName()).log(Level.SEVERE, null, ex);
}

logging.properties 文件如下所示：

handlers=java.util.logging.ConsoleHandler,myPackage.AlertHandler
.level=SEVERE
java.util.logging.ConsoleHandler.level=SEVERE
java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter
myPackage.AlertHandler.level=SEVERE
myPackage.AlertHandler.formatter=java.util.logging.SimpleFormatter

而 myPackage.AlertHandler.java 看起来像这样：

package myPackage;
import java.util.logging.Handler;
import java.util.logging.LogRecord;
import javafx.scene.control.Alert;
public class AlertHandler extends Handler {
    @Override
    public void publish(LogRecord lr) {
        Alert a = new Alert(Alert.AlertType.ERROR);
        a.setTitle("Exception!");
        a.setHeaderText("Exception was thrown, here is the StackTrace:");
        a.setContentText(getFormatter().formatMessage(lr));
        Platform.runLater(()->{a.showAndWait();});
    }
    @Override
    public void flush() {
        //no real handler is open, nothing to flush
    } …