Springboot中WebMvcConfigurer接口详解
作者:互联网
用途:跨域、拦截器、静态资源处理
接口方法的作用:
addInterceptors:拦截器 addViewControllers:页面跳转 addResourceHandlers:静态资源 configureDefaultServletHandling:默认静态资源处理器 configureViewResolvers:视图解析器 configureContentNegotiation:配置内容裁决的一些参数 addCorsMappings:跨域 configureMessageConverters:信息转换器
在Spring Boot 1.5版本都是靠重写WebMvcConfigurerAdapter的方法来添加自定义拦截器,消息转换器等。SpringBoot 2.0 后,该类被标记为@Deprecated(弃用)。官方推荐直接实现WebMvcConfigurer或者直接继承WebMvcConfigurationSupport,方式一实现 WebMvcConfigurer接口(推荐),方式二继承WebMvcConfigurationSupport类,具体实现可看这篇文章。https://blog.csdn.net/fmwind/article/details/82832758
package com.olive.config; import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.CorsRegistry; import org.springframework.web.servlet.config.annotation.EnableWebMvc; import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; /** * WebMvcConfigurer * */ @Configuration @EnableWebMvc public class ConfigurerAdapter implements WebMvcConfigurer { //图片保存路径 public static final String PIC_PATH = "/landscape/"; @Value(value="${application.profile}") private String profile; //跨域 @Override public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowCredentials(true) .allowedHeaders("*") .allowedOrigins("*") .allowedMethods("GET","POST","PUT","DELETE"); } // 可解决Long 类型在 前端精度丢失的问题, 如不想全局 直接添加注解 @JsonSerialize(using= ToStringSerializer.class) 到相应的字段 @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("/**").addResourceLocations("classpath:/META-INF/resources/").setCachePeriod(0); /** 图片传路径 */ registry.addResourceHandler("/landscape/**").addResourceLocations("file:" + profile); }
// 添加拦截器 @Override public void addInterceptors(InterceptorRegistry registry) { /*拦截所有url请求*/ registry.addInterceptor(authenticationInterceptor()) .addPathPatterns("/**"); } }
标签:Springboot,springframework,详解,registry,org,WebMvcConfigurer,import,annotation 来源: https://www.cnblogs.com/zhougongjin/p/15880762.html