在Spring boot中没有加载logback JNDI选择器

Question

<env-entry>
    <env-entry-name>logback/context-name</env-entry-name>
    <env-entry-type>java.lang.String</env-entry-type>
    <env-entry-value>appA</env-entry-value>
</env-entry>

我想也许我可以使用logging.config强制使用这些logging.config=z://dev/...../logback-app.xml或logging.config=file:z://dev/...../logback-app.xml或logging.config=classepath:logback-app.xml的logback配置文件，它们都不能加载该文件。在org.springframework.boot.logging.logback.LogBackLoggingSystem类的第67行，字符串configLocation为空。

即使设置了logging.config=z://dev/.../logback-spring.xml，也无法加载il。

我想我不能使用spring活动配置文件，因为appB不使用Spring Boot。

Answer 1

我也遇到了同样的问题，经过几天的搜索，这个链接证明是最有帮助的:http://rostislav-matl.blogspot.com/2013/03/remensed-logback-config-file-for-web.html

在spring初始值设定项中，您可以重写onStartup，以添加自定义侦听器：

  @Override
  public void onStartup(ServletContext servletContext) throws ServletException {
    // Add the customer listener to configure logback
    servletContext.addListener(CustomServletContextListener.class);
    super.onStartup(servletContext);
  }

public class CustomServletContextListener implements ServletContextListener {

  @Override
  public void contextInitialized(ServletContextEvent contextEvent) {
    // Get the war/context name from this context event
    String contextName = contextEvent.getServletContext().getContextPath().substring(1);

    // Get the path of the logback configuration file
    URL configFileURL = Thread.currentThread().getContextClassLoader().getResource("logback-" + contextName + ".xml");

    // If the URL exists in the classpath
    if (configFileURL != null) {
      try {
        // Reset the existing logger context and set the name to match the current context
        LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
        loggerContext.reset();
        loggerContext.setName(contextName);

        // Update the logger context and configure the logger based on the configuration file
        JoranConfigurator configurator = new JoranConfigurator();
        configurator.setContext(loggerContext);
        configurator.doConfigure(configFileURL);
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    }
  }
}