java - 如何将 web.xml 代码转换为 java 旋律的 java 配置

Question

是否可以将项目中的web.xml完全去掉，转为Java配置？

如何将下面的web.xml转为java配置？

我已经通过几个链接来理解这一点

其中一些是: How to replace web.xml with application context config files?

但找不到任何教程/博客如何将 web.xml 的每个成员替换为相应的 java 配置。如果有任何可用的东西，那将非常有帮助。

例如，一些过滤器来自库，我们只需要在 web.xml 中声明功能。如何在 java 配置中实现同样的功能(用 java 配置替换整个 web.xml)

  <filter>
            <filter-name>monitoring</filter-name>
            <filter-class>net.bull.javamelody.MonitoringFilter</filter-class>
            <init-param>
                <param-name>allowed-addr-pattern</param-name>
                <param-value>127\.0\..*\..*</param-value>
            </init-param>
        </filter>
        <filter-mapping>
            <filter-name>monitoring</filter-name>
            <url-pattern>/monitoring</url-pattern>
        </filter-mapping>
        <listener>
            <listener-class>net.bull.javamelody.SessionListener</listener-class>
        </listener>


        <login-config>
            <auth-method>BASIC</auth-method>
            <realm-name>Monitoring</realm-name>
        </login-config>

        <security-constraint>
            <web-resource-collection>
                <web-resource-name>Monitoring</web-resource-name>
                <url-pattern>/monitoring</url-pattern>
            </web-resource-collection>
            <auth-constraint>
                <role-name>jmon-admin</role-name>
            </auth-constraint>
            <!-- if SSL enabled (SSL and certificate must then be configured in the 
                server) <user-data-constraint> <transport-guarantee>CONFIDENTIAL</transport-guarantee> 
                </user-data-constraint> -->
        </security-constraint>

Answer 1

我想我终于成功了

要监控 sql，请将其添加到您的数据源配置中

  @Bean
  public SpringDataSourceBeanPostProcessor monitoringDataSourceBeanPostProcessor() {
    SpringDataSourceBeanPostProcessor processor = new SpringDataSourceBeanPostProcessor();
    processor.setExcludedDatasources(null);
    return processor;
  }

将其添加到您的安全配置中(您可以针对特定角色限制它)

.antMatchers("/monitoring/**")

可选步骤是编辑此类(以覆盖 onStartup 方法)但我想默认情况下不需要它

import net.bull.javamelody.MonitoringFilter;
import net.bull.javamelody.Parameter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

import javax.servlet.DispatcherType;
import javax.servlet.FilterRegistration;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import java.util.EnumSet;

public class AppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

  private static final Logger LOGGER = LoggerFactory.getLogger(AppInitializer.class);
  @Override
  protected Class<?>[] getRootConfigClasses() {
    return null;
  }

  @Override
  protected Class<?>[] getServletConfigClasses() {
    return new Class<?>[]{SpringWebConfig.class};
  }

  @Override
  protected String[] getServletMappings() {
    return new String[]{"/"};
  }

  @Override
  public void onStartup(ServletContext servletContext) throws ServletException {
    super.onStartup(servletContext);
    FilterRegistration javaMelody = servletContext.getFilterRegistration("javamelody");
    if (javaMelody != null) {
      LOGGER.info("Java Melody Filter Registration found: {}", javaMelody);
      // Filter registered by Servlet Container via web-fragment in
      // javamelody.jar
      addFilter(javaMelody);
    } else {
      LOGGER.info("Java Melody Filter Registration not found. Registering dynamically");
      // Running in embedded server mode.
      FilterRegistration.Dynamic javaMelodyFilter = servletContext.addFilter("javamelody", new MonitoringFilter());
      addFilter(javaMelodyFilter);
    }
  }

  private void addFilter(FilterRegistration javaMelody) {
    javaMelody.addMappingForUrlPatterns(
            EnumSet.of(DispatcherType.REQUEST, DispatcherType.FORWARD, DispatcherType.ASYNC), true, "/*");
    javaMelody.setInitParameter(Parameter.LOG.getCode(), Boolean.toString(false));
    javaMelody.setInitParameter(Parameter.DISPLAYED_COUNTERS.getCode(), "http,sql,error,log");
  }

}

我找到了这个来源 here和 here