如何在属性文件中使用 Map

Question

How to map this in a properties file?

I'm trying to follow this documentation on Spring Cloud Gateway

However, we us application.properties.

spring:
  cloud:
    gateway:
      globalcors:
        corsConfigurations:
          '[/**]':
            allowedOrigins: "https://docs.spring.io"
            allowedMethods:
            - GET

I've tried different variations to no avail:

spring.cloud.gateway.globalcors.cors-configurations./**.allowed-origin
spring.cloud.gateway.globalcors.cors-configurations.[/**].allowed-origin

I get an exception:

*************************** APPLICATION FAILED TO START

---

Description:

Failed to bind properties under 'spring.cloud.gateway.globalcors.cors-configurations.allowed-origins' to org.springframework.web.cors.CorsConfiguration:

 Reason: No converter found capable of converting from type [java.lang.String] to type

[org.springframework.web.cors.CorsConfiguration]

Action:

Update your application's configuration

Please note that this code is using Spring Cloud Hoxton.M3. I understand that one might assume that the known implementation as per the Spring Guide might be the answer but this is not the case as SC Gateway does not use HttpServlet anymore.

Update: This works according to Marcos Barbero. Apparently, Eclipse can't understand this data type as a property. For now, you'll have to deal with ignoring the parsing error.

spring.cloud.gateway.globalcors.corsConfigurations.[/**].allowedOrigins=*
spring.cloud.gateway.globalcors.corsConfigurations.[/**].allowedMethods=*
spring.cloud.gateway.globalcors.corsConfigurations.[/**].allowCredentials=true

Answer 1

I didn't try it out, but I think you can use it like this:

spring.cloud.gateway.globalcors.corsConfigurations.[/**].allowedOrigins="https://docs.spring.io"
spring.cloud.gateway.globalcors.corsConfigurations.[/**].allowedMethods[0]=GET

If it doesn't work, try to remove the square brackets from [/**] resulting in /** .

Answer 2

you can't set these properties using propeties file. Rather use Spring configuration to setup these properties something like below:

@Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurerAdapter() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/test-javaconfig").allowedOrigins("http://localhost:9000");
            }
        };
    }

Also, this post might be of some help.