springboot启动报错：Unable to process parts as no multi-part configuration has been provided

谁借莪１个温暖的怀抱￠ 2023-07-17 02:53 8阅读 0赞

**搭建springboot后，新建控制器后，访问控制器接口，控制台报错：**

Unable to process parts as no multi-part configuration has been provided

报错为：无法处理部件，未提供多部件配置。

看错误中的 multi-part 中字眼就知道是上传文件的组件没有注入到springboot中自定义的servlet中去即可。

registrationBean.setMultipartConfig(multipartConfigElement);

**完整代码：**

在你的启动类Application中的自定义servlet中添加代码：

//自动注入springboot的默认上传配置
        @Autowired
        private MultipartConfigElement multipartConfigElement;
    
    
        @Bean
        public ServletRegistrationBean<DispatcherServlet> servletMvc() {
            //注解扫描上下文
            AnnotationConfigWebApplicationContext applicationContext
                    = new AnnotationConfigWebApplicationContext();
           //扫描包
            applicationContext.scan("com.xx.com");
            //通过构造函数指定dispatcherServlet的上下文
            DispatcherServlet dispatcherServlet = new DispatcherServlet(applicationContext);
            //用ServletRegistrationBean包装servlet
            ServletRegistrationBean<DispatcherServlet> registrationBean
                    = new ServletRegistrationBean<>(dispatcherServlet);
            registrationBean.setLoadOnStartup(0);
            registrationBean.setMultipartConfig(multipartConfigElement);
            //指定name，如果不指定默认为dispatcherServlet
            registrationBean.setName("rest");
            return registrationBean;
        }