今天就跟大家聊聊有关利用spring-boot怎么允许接口跨域,可能很多人都不太了解,为了让大家更加了解,小编给大家总结了以下内容,希望大家根据这篇文章可以有所收获。
pom.xml(依赖的jar)
// 在spring-boot-starter-web的启动器中,已经依赖好了 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency>
CORS跨域的配置(主要配置允许什么样的方法跨域)
import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.cors.CorsConfiguration; import org.springframework.web.cors.UrlBasedCorsConfigurationSource; import org.springframework.web.filter.CorsFilter; import org.springframework.web.servlet.config.annotation.CorsRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; import java.util.ArrayList; import java.util.List; /** * Created by Msater Zg on 2017/4/3. */ @Configuration public class CorsConfig extends WebMvcConfigurerAdapter { @Override public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowedOrigins("*") .allowCredentials(true) .allowedMethods("GET", "POST", "DELETE", "PUT") .maxAge(3600); } private CorsConfiguration buildConfig() { CorsConfiguration corsConfiguration = new CorsConfiguration(); List<String> list = new ArrayList<>(); list.add("*"); corsConfiguration.setAllowedOrigins(list); /* // 请求常用的三种配置,*代表允许所有,当时你也可以自定义属性(比如header只能带什么,只能是post方式等等) */ corsConfiguration.addAllowedOrigin("*"); corsConfiguration.addAllowedHeader("*"); corsConfiguration.addAllowedMethod("*"); return corsConfiguration; } @Bean public CorsFilter corsFilter() { UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); source.registerCorsConfiguration("/**", buildConfig()); return new CorsFilter(source); } }
拦截器配置(可以根据不同路径,配置不同的拦截器)
import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Created by Msater Zg on 2017/4/5. * 拦截器 */ public class ApiInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { // 请求前调用 System.out.println("拦截了"); return true; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { // 请求过程中调用 System.out.println("拦截了"); } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { // 请求完成时调用 System.out.println("拦截了"); } }
拦截器管理类,用于生成项目的拦截器链
import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.InterceptorRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; /** * Created by Msater Zg on 2017/4/5. * 拦截器管理工具 */ @Configuration public class MyWebAppConfigurer extends WebMvcConfigurerAdapter { @Override public void addInterceptors(InterceptorRegistry registry) { // 多个拦截器组成一个拦截器链 // addPathPatterns 用于添加拦截规则 // excludePathPatterns 用户排除拦截 registry.addInterceptor(new ApiInterceptor()).addPathPatterns("/user/**"); //对来自/user/** 这个链接来的请求进行拦截 super.addInterceptors(registry); } }
看完上述内容,你们对利用spring-boot怎么允许接口跨域有进一步的了解吗?如果还想了解更多知识或者相关内容,请关注亿速云行业资讯频道,感谢大家的支持。
免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。