JavaScript 添加响应头

• 可以给 .js 后缀的文件，添加自定义响应头

package cn.com.xuxiaowei.shield.gateway.filter.factory;

import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.server.LocalServerPort;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.test.context.TestPropertySource;
import org.springframework.web.client.RestTemplate;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

/**
 * @author xuxiaowei
 * @since 0.0.1
 * @see JavaScriptAddResponseHeaderGatewayFilterFactory
 */
@Slf4j
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
// @formatter:off
@TestPropertySource(properties = {
		"spring.cloud.gateway.routes[0].id=demo",
		"spring.cloud.gateway.routes[0].uri=http://localhost:45678",
		"spring.cloud.gateway.routes[0].predicates[0]=Host=demo.localdev.me:*",
		"spring.cloud.gateway.routes[0].filters[0].name=JavaScriptAddResponseHeader",
		"spring.cloud.gateway.routes[0].filters[0].args.name=Cache-Control",
		"spring.cloud.gateway.routes[0].filters[0].args.value=max-age=3600"
})
// @formatter:on
class JavaScriptAddResponseHeaderGatewayFilterFactoryTests {

    @LocalServerPort
    private int serverPort;

    @SneakyThrows
    @Test
    void apply() {

        String url = String.format("http://demo.localdev.me:%s/a.js", serverPort);

        RestTemplate restTemplate = new RestTemplate();

        ResponseEntity<String> entity = restTemplate.getForEntity(url, String.class);

        assertNotNull(entity);
        assertEquals(HttpStatus.OK, entity.getStatusCode());

        HttpHeaders headers = entity.getHeaders();
        String cacheControl = headers.getCacheControl();

        assertNotNull(cacheControl);

        log.info("{}: \n{}", HttpHeaders.CACHE_CONTROL, cacheControl);
    }

}