删除请求头 RemoveRequestHeaderGatewayFilterFactory

• 如果通过网关代理的请求，需要删除特定的请求头，可以使用 RemoveRequestHeaderGatewayFilterFactory 过滤器

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.cloud.gateway.filter.factory.RemoveRequestHeaderGatewayFilterFactory;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.test.context.TestPropertySource;
import org.springframework.web.client.RestTemplate;

import java.util.List;
import java.util.Map;
import java.util.UUID;

import static cn.com.xuxiaowei.shield.gateway.filter.factory.RemoveRequestHeaderGatewayFilterFactoryTests.NAME;
import static org.junit.jupiter.api.Assertions.*;

/**
 * @author xuxiaowei
 * @since 0.0.1
 * @see RemoveRequestHeaderGatewayFilterFactory
 */
@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=RemoveRequestHeader",
        "spring.cloud.gateway.routes[0].filters[0].args.name=" + NAME,
})
// @formatter:on
class RemoveRequestHeaderGatewayFilterFactoryTests {

    static final String NAME = "abcffgg";

    @LocalServerPort
    private int serverPort;

    @SneakyThrows
    @Test
    void apply() {

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

        String name = "kkllkp";
        String value = UUID.randomUUID().toString();

        RestTemplate restTemplate = new RestTemplate();
        HttpHeaders headers = new HttpHeaders();
        headers.set(NAME, "abff456456");
        headers.set(name, value);
        HttpEntity<HttpHeaders> httpEntity = new HttpEntity<>(headers);
        Map map = restTemplate.postForObject(url, httpEntity, Map.class);

        assertNotNull(map);

        Object object = map.get(NAME);
        Object valueObj = map.get(name);

        assertNull(object);

        assertNotNull(valueObj);
        assertInstanceOf(List.class, valueObj);

        List<String> list = (List<String>) valueObj;
        assertEquals(1, list.size());
        assertEquals(value, list.get(0));

    }

}