Spring Boot映射静态资源

开发配置：

• IntelliJ Idea
• JDK 1.8.0.131 64-bit
• spring boot 1.5.8

1.新建项目

使用Idea新建项目，默认情况下，resource下：META-INF/resources、resources,static、public下的静态文件可直接访问，如下所示：

访问地址：
http://localhost:8080/desert1.jpg
http://localhost:8080/desert2.jpg
http://localhost:8080/desert3.jpg
http://localhost:8080/desert4.jpg

2.使用@EnableWebMvc并继承WebMvcConfigurerAdapter类之后，无法访问静态资源

WebConfig

package com.example.demo.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

/**
 * @author Aaron
 */
@Configuration
@EnableWebMvc
@ComponentScan
public class WebConfig extends WebMvcConfigurerAdapter {

}

原因：
@EnableWebMvc配合WebMvcConfigurerAdapter修改了默认的静态资源范围配置，参考：http://blog.youkuaiyun.com/pinebud55/article/details/53420481

解决：
将默认的静态资源范围路径加回来：

package com.example.demo.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

/**
 * @author Aaron
 */
@Configuration
@EnableWebMvc
@ComponentScan
public class WebConfig extends WebMvcConfigurerAdapter {
    private static final String[] CLASSPATH_RESOURCE_LOCATIONS = {
            "classpath:/META-INF/resources/", "classpath:/resources/",
            "classpath:/static/", "classpath:/public/"};

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/**").addResourceLocations(CLASSPATH_RESOURCE_LOCATIONS);
    }

}

再次访问静态资源，ok！

参考：https://stackoverflow.com/questions/24661289/spring-boot-not-serving-static-content

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