Springboot添加靜態資源映射addResourceHandlers，可實現url訪問

@Configuration

//public class WebMvcConfiger extends WebMvcConfigurerAdapter {
public class WebMvcConfiger implements WebMvcConfigurer { @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("/picture/**").addResourceLocations("file:D:/picture/"); } }

registry.addResourceHandler("/picture/**")  
//表示文件路徑，這里的意思是picture包下的所有文件，所有/picture/開頭的請求 都會去后面配置的路徑下查找資源
.addResourceLocations("file:D:/picture/"); 
//表示要開放的資源