解决springboot 2.x 里面访问静态资源的坑

@conditionalonmissingbean (webmvcconfigurationsupport. class )

/**

  * 原来是这么写的：

  * public class beanconfiguration extends webmvcconfigurationsupport

  * 导致默认配置的静态资源不生效了

  */

@configuration

public class beanconfiguration implements webmvcconfigurer {

     @bean

     public mappingjackson2httpmessageconverter jackson2httpmessageconverter() {

         mappingjackson2httpmessageconverter converter = new mappingjackson2httpmessageconverter();

         objectmapper mapper = new objectmapper();

         mapper.configure(deserializationfeature.fail_on_unknown_properties, false );

         mapper.setdateformat( new simpledateformat( "yyyy-mm-dd hh:mm:ss" ));

         mapper.settimezone(timezone.gettimezone( "gmt+8" ));

         mapper.setdefaultpropertyinclusion(jsoninclude.include.always);

         converter.setobjectmapper(mapper);

         return converter;

     }

     @override

     public void configuremessageconverters(list<httpmessageconverter<?>> converters) {

         //将我们定义的时间格式转换器添加到转换器列表中,

         //这样jackson格式化时候但凡遇到date类型就会转换成我们定义的格式

         converters.add(jackson2httpmessageconverter());

         // 添加字符串转换，否认如果返回字符串，则会报异常，其他converter

         // 参考：org.springframework.web.servlet.config.annotation.webmvcconfigurationsupport#adddefaulthttpmessageconverters

         stringhttpmessageconverter stringhttpmessageconverter = new stringhttpmessageconverter();

         stringhttpmessageconverter.setwriteacceptcharset( false );  // see spr-7316

         converters.add(stringhttpmessageconverter);

     }

}

package com.example.thymeleaf测试数据mons;

import org.springframework.stereotype测试数据ponent;

import org.springframework.web.servlet.config.annotation.resourcehandlerregistry;

import org.springframework.web.servlet.config.annotation.webmvcconfigurer;

/**

  * 配置静态资源映射

  *

  * @author sunziwen

  * @version 1.0

  * @date 2018-11-16 14:57

  **/

@component

public class webmvcconfig implements webmvcconfigurer {

     /**

      * 添加静态资源文件，外部可以直接访问地址

      *

      * @param registry

      */

     @override

     public void addresourcehandlers(resourcehandlerregistry registry) {

         registry.addresourcehandler( "/static/**" ).addresourcelocations( "classpath:/static/" );

     }

}