@Scheduled定时任务重复执行两次的解决方法_schedulerunnable超时会执行第二次-优快云博客

本文链接：https://blog.youkuaiyun.com/tly_74125/article/details/80925599

本文介绍了如何在Spring MVC中配置DispatcherServlet，通过XML配置文件指定初始化参数并设置映射路径，确保请求能够正确地被DispatcherServlet处理。

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根据：https://blog.youkuaiyun.com/pearyangyang/article/details/77248020

添加代码：

    <servlet>
        <servlet-name>mvc-dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--加上了这个 定时器就不会同时执行两次了-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value></param-value>
        </init-param>
 
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>

那spring boot 怎么处理？

根据：https://blog.youkuaiyun.com/m0_37893932/article/details/79665148

添加类：

package com.wisdom.configuration;

import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.support.XmlWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;

import javax.servlet.ServletContext;
import javax.servlet.ServletRegistration;

/**
 * Created by tanly on 2018/7/5 0005.
 */
public class MyWebAppInitializer implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext container) {
        XmlWebApplicationContext appContext = new XmlWebApplicationContext();
        appContext.setConfigLocation("/WEB-INF/classes/application.properties");

        ServletRegistration.Dynamic dispatcher = container.addServlet("dispatcher", new DispatcherServlet(appContext));
//        dispatcher.setLoadOnStartup(1);
        dispatcher.addMapping("/");
    }
}