在Spring Boot 2.X应用程序中可以使用注解@CrossOrigin，也可以通过使用WebMvcConfigurer对象来定义全局CORS配置。
1.@CrossOrigin注解示例代码
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class HelloController {
@CrossOrigin
@RequestMapping("/hello")
public String HelloSpring (){
return "hello world";
}
}
2.WebMvcConfigurer对象示例代码
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@Configuration
public class MyConfiguration {
@Bean
public WebMvcConfigurer corsConfigurer() {
return new WebMvcConfigurer() {
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/*")
.allowedOrigins("*")
.allowCredentials(true)
.allowedMethods("GET", "POST", "DELETE", "PUT","PATCH")
.maxAge(3600);
}
};
}
}
