跨域访问时很多需求,所以springboot的跨域解决也是【必须的】
1.注解方式(个人比较喜欢,方便省事)
直接添加一个注解 @CrossOrigin
如图:
2.拦截器方式
//自定义拦截器
import org.springframework.web.servlet.HandlerInterceptor;
public class CorsInterceptor implements HandlerInterceptor{
@Override
public boolean preHandle(HttpServletRequest httpServletRequest,HttpServletResponse httpServletResponse,Object o) throws Exception{
String origin = httpServletRequest.getHeader("Origin");
httpServletResponse.setHeader("Access-Control-Allow-Origin",origin);
httpServletResponse.setHeader("Access-Control-Allow-Methods","*");
httpServletResponse.setHeader("Access-Control-Allow-Headers","Origin,Content-Type,Accept,token,X-Requested-With");
httpServletResponse.setHeader("Access-Control-Allow-Credentials","true");
return true;
}
//其他postHandle,afterCompletion空继承
}
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//配置类加入自定义拦截器
@Configuration
public class MvcConfig extends WebMvcConfigurationSupport{
@Override
public void addInterceptors(InterceptorRegistry registry){
registry.addInterceptor(new CorsInterceptor()).addPathPatterns("/**");
}
}
原文地址:https://blog.csdn.net/qq_40006446
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