• SpringBoot-配置嵌入式Servlet容器(十四)


    SpringBoot默认使用Tomcat作为嵌入式的Servlet容器;

    如何定制和修改Servlet容器的相关配置

    1、修改和server有关的配置(ServerProperties【也是EmbeddedServletContainerCustomizer】);

    server.port=8081
    server.context-path=/crud
    
    server.tomcat.uri-encoding=UTF-8
    
    //通用的Servlet容器设置
    server.xxx
    //Tomcat的设置
    server.tomcat.xxx

    2、编写一个EmbeddedServletContainerCustomizer:嵌入式的Servlet容器的定制器;来修改Servlet容器的配置

    @Bean  //一定要将这个定制器加入到容器中
    public EmbeddedServletContainerCustomizer embeddedServletContainerCustomizer(){
        return new EmbeddedServletContainerCustomizer() {
    
            //定制嵌入式的Servlet容器相关的规则
            @Override
            public void customize(ConfigurableEmbeddedServletContainer container) {
                container.setPort(8083);
            }
        };
    }

    注册Servlet三大组件【Servlet、Filter、Listener】

    由于SpringBoot默认是以jar包的方式启动嵌入式的Servlet容器来启动SpringBoot的web应用,没有web.xml文件。

    注册三大组件用以下方式

    ServletRegistrationBean

    //注册三大组件
    @Bean
    public ServletRegistrationBean myServlet(){
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(new MyServlet(),"/myServlet");
        return registrationBean;
    }

    FilterRegistrationBean

    @Bean
    public FilterRegistrationBean myFilter(){
        FilterRegistrationBean registrationBean = new FilterRegistrationBean();
        registrationBean.setFilter(new MyFilter());
        registrationBean.setUrlPatterns(Arrays.asList("/hello","/myServlet"));
        return registrationBean;
    }

    ServletListenerRegistrationBean

    @Bean
    public ServletListenerRegistrationBean myListener(){
        ServletListenerRegistrationBean<MyListener> registrationBean = new ServletListenerRegistrationBean<>(new MyListener());
        return registrationBean;
    }

    SpringBoot帮我们自动SpringMVC的时候,自动的注册SpringMVC的前端控制器;DIspatcherServlet;

    DispatcherServletAutoConfiguration中:

    @Bean(name = DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME)
    @ConditionalOnBean(value = DispatcherServlet.class, name = DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)
    public ServletRegistrationBean dispatcherServletRegistration(
          DispatcherServlet dispatcherServlet) {
       ServletRegistrationBean registration = new ServletRegistrationBean(
             dispatcherServlet, this.serverProperties.getServletMapping());
        //默认拦截: /  所有请求;包静态资源,但是不拦截jsp请求;   /*会拦截jsp
        //可以通过server.servletPath来修改SpringMVC前端控制器默认拦截的请求路径
        
       registration.setName(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME);
       registration.setLoadOnStartup(
             this.webMvcProperties.getServlet().getLoadOnStartup());
       if (this.multipartConfig != null) {
          registration.setMultipartConfig(this.multipartConfig);
       }
       return registration;
    }

    替换为其他嵌入式Servlet容器

    默认支持:

    Tomcat(默认使用)

    <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-web</artifactId>
       引入web模块默认就是使用嵌入式的Tomcat作为Servlet容器;
    </dependency>

    Jetty

    <!-- 引入web模块 -->
    <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-web</artifactId>
       <exclusions>
          <exclusion>
             <artifactId>spring-boot-starter-tomcat</artifactId>
             <groupId>org.springframework.boot</groupId>
          </exclusion>
       </exclusions>
    </dependency>
    
    <!--引入其他的Servlet容器-->
    <dependency>
       <artifactId>spring-boot-starter-jetty</artifactId>
       <groupId>org.springframework.boot</groupId>
    </dependency>

    Undertow

    <!-- 引入web模块 -->
    <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-web</artifactId>
       <exclusions>
          <exclusion>
             <artifactId>spring-boot-starter-tomcat</artifactId>
             <groupId>org.springframework.boot</groupId>
          </exclusion>
       </exclusions>
    </dependency>
    
    <!--引入其他的Servlet容器-->
    <dependency>
       <artifactId>spring-boot-starter-undertow</artifactId>
       <groupId>org.springframework.boot</groupId>
    </dependency>

     

  • 相关阅读:
    linux进程和调度
    linux驱动设备树
    linux驱动开发3
    字符设备驱动开发
    驱动内存分配api说明(转转)
    linux驱动里面双向链表
    好用的开源代码(库,操作系统,gui)等等
    linux驱动并发逻辑
    字符驱动开发2
    android view可见性判断(判断是否在屏幕中显示)
  • 原文地址:https://www.cnblogs.com/xiaoqiqistudy/p/11366461.html
Copyright © 2020-2023  润新知