在Spring Boot中添加多个跨源URL

您设置的方式只会设置第三个原点，而另两个将消失。

如果要设置所有三个原点，则需要将它们作为逗号分隔的字符串传递。

@Overridepublic void addCorsMappings(CorsRegistry registry) {    registry.addMapping("/api/**")        .allowedOrigins("http://domain1.com","http://domain2.com"  "http://domain3.com");}

您可以在此处找到实际的代码：

https://github.com/spring-projects/spring-
framework/blob/00d2606b000f9bdafbd7f4a16b6599fb51b53fa4/spring-
webmvc/src/main/java/org/springframework/web/servlet/config/annotation/CorsRegistration.java#L61

https://github.com/spring-projects/spring-
framework/blob/31aed61d1543f9f24a82a204309c0afb71dd3912/spring-
web/src/main/java/org/springframework/web/cors/CorsConfiguration.java#L122

import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.PropertySource;import org.springframework.core.env.Environment;import org.springframework.web.servlet.config.annotation.CorsRegistry;import org.springframework.web.servlet.config.annotation.EnableWebMvc;import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;@Configuration@EnableWebMvc@PropertySource("classpath:config.properties")public class CorsClass extends WebMvcConfigurerAdapter {    @Autowired    private Environment environment;    @Override    public void addCorsMappings(CorsRegistry registry) {        String origins = environment.getProperty("origins");        registry.addMapping("/api/**")     .allowedOrigins(origins.split(","));    }}