今天开始使用SpringBoot写项目，于是先让其能够访问静态资源，但是配置半天也不能访问我的helloWorld页面，原来，在SpringBoot2.x中，一下静态资源路径不生效了。
classpath:/META/resources/，classpath:/resources/，classpath:/static/，classpath:/public/）不生效。
springboot2.x以后，支持jdk1.8，运用了jdk1.8的一些特性。jdk1.8支持在接口中添加default方法，而此方法具有具体的方法实现。静态资源和拦截器的处理，不再继承“WebMvcConfigurerAdapter”方法。而是直接实现“WebMvcConfigurer”接口。通过重写接口中的default方法，来增加额外的配置。
要想能够访问静态资源，请配置WebMvcConfigurer
1 package io.guangsoft.web.config; 2
3 import io.guangsoft.common.interceptor.EncodingInterceptor; 4 import io.guangsoft.common.security.shiro.interceptor.PermissionInterceptorAdapter; 5 import io.guangsoft.common.utils.SpringContextHolder; 6 import io.guangsoft.web.interceptor.WebInterceptor; 7 import org.springframework.context.annotation.Bean; 8 import org.springframework.context.annotation.Configuration; 9 import org.springframework.core.env.Environment; 10 import org.springframework.web.servlet.HandlerInterceptor; 11 import org.springframework.web.servlet.config.annotation.InterceptorRegistry; 12 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry; 13 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; 14
15 @Configuration 16 public class InterceptorConfig implements WebMvcConfigurer { 17
18 /**
19 * 编码拦截器 20 */
21 @Bean 22 public HandlerInterceptor encodingInterceptor() { 23 EncodingInterceptor encodingInterceptor = new EncodingInterceptor(); 24 return encodingInterceptor; 25 } 26
27 /**
28 * 安全验证拦截器 29 * 30 * @return
31 */
32 @Bean 33 public PermissionInterceptorAdapter permissionInterceptorAdapter() { 34 PermissionInterceptorAdapter permissionInterceptorAdapter = new PermissionInterceptorAdapter(); 35 return permissionInterceptorAdapter; 36 } 37
38 /**
39 * 静态资源拦截器 40 */
41 @Bean 42 public WebInterceptor webInterceptor() { 43 WebInterceptor webInterceptor = new WebInterceptor(); 44 return webInterceptor; 45 } 46
47 @Override 48 public void addInterceptors(InterceptorRegistry registry) { 49 //编码拦截器
50 registry.addInterceptor(encodingInterceptor()).addPathPatterns("/**").excludePathPatterns("/upload/**", "/static/**"); 51 //安全验证拦截器
52 registry.addInterceptor(permissionInterceptorAdapter()).addPathPatterns("/**").excludePathPatterns("/upload/**", "/static/**"); 53 //web拦截器
54 registry.addInterceptor(webInterceptor()).addPathPatterns("/**").excludePathPatterns("/upload/**", "/static/**"); 55 } 56
57 /**
58 * 添加静态资源文件，外部可以直接访问地址 59 */
60 @Override 61 public void addResourceHandlers(ResourceHandlerRegistry registry) { 62 //第一个方法设置访问路径前缀，第二个方法设置资源路径
63 registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/"); 64 //添加对上传文件的直接访问
65 Environment env = SpringContextHolder.getBean(Environment.class); 66 String uploadFilePath = env.getProperty("upload-file-path"); 67 registry.addResourceHandler("/upload/**").addResourceLocations("file:" + uploadFilePath); 68 } 69
70 }