org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException报错问题

这个原因是

高版本SpringBoot整合swagger 造成的

我的项目是2.7.8

swagger版本是3.0.0

就会出现上面的报错

解决方式：

1.配置WebMvcConfigurer.java

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

@Configuration
public class WebMvcConfigurer extends WebMvcConfigurationSupport {

    /**
     * 发现如果继承了WebMvcConfigurationSupport，则在yml中配置的相关内容会失效。 需要重新指定静态资源
     */
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {        registry.addResourceHandler("/**").addResourceLocations(
                "classpath:/static/");
        registry.addResourceHandler("swagger-ui.html", "doc.html").addResourceLocations(
                "classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations(
                "classpath:/META-INF/resources/webjars/");
        super.addResourceHandlers(registry);
    }

}

2.在配置文件application.yml中添加

spring:
  mvc:
    pathmatch:
      matching-strategy: ant_path_matcher