Spring cloud Gateway 指定执行过滤器（在配置文件中配置所需要过滤器）

Love The Way You Lie 2023-07-15 09:14 7阅读 0赞

## ** gateway 相关文章** ##

### **              [Spring cloud gateway 处理跨域问题][Spring cloud gateway]** ###

###               [Spring cloud gateway 拦截请求404 等HTTP 状态码][Spring cloud gateway _404 _HTTP] ###

###               [Spring cloud gateway 修改response 截断问题，乱码问题解决][Spring cloud gateway _response] ###

###               [Spring cloud gateway 详解和配置使用（文章较长）][Spring cloud gateway 1] ###

##              Spring cloud gateway 设置https 和http同时支持 ##

## **                                Spring cloud Gateway  指定执行过滤器 ** ##

###                                                **在配置文件中配置所需要过滤器** ###

gateway的配置过滤器分为两种

# ①：全局过滤器 #

### 全局过滤器 不需要在配置文件配置，所有到服务的请求都会进行拦截， ###

/**
     * @author 荡漾
     * @title: TokenFilter
     * @projectName gateway
     * @description: TODO token校验全局过滤器
     * @date 2019/6/21  12:41
     */
    @Configuration
    @Slf4j
    public class TokenFilter implements GlobalFilter, Ordered {
    
        @Override
        public int getOrder() {
            return -10000;
        }
    
     @Override
        public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
           return chain.filter(exchange);
      }
    }

# ②：指定过滤器 #

需要继承 AbstractGatewayFilterFactory

### 优点，可在配置文件中配置，可以为某个服务指定过滤器， ###

只需把filter对应的名字写入配置文件即可如图：

这里值得注意的是， 如果你filter的名称后缀是 GatewayFilterFactory 如 TestGatewayFilterFactory 在配置文件中只需要写Test即可 如果不是那就写全称就可以了

![20200316112057917.png][]

@Component
    @Slf4j
    public class Test  extends AbstractGatewayFilterFactory<Test.NameConfig> {
    
    
        public Test() {
            super(NameConfig.class);
            log.info("Loaded GatewayFilterFactory [Authorize]");
        }
    
        @Override
        public GatewayFilter apply(Test.NameConfig config) {
            return (exchange, chain) -> {
                System.out.println("=  =  =  =  =  = 执行了=  =  =  =  =  =  =  =");
                return chain.filter(exchange);
            };
        }
        public static class NameConfig {
    
            private String name;
    
            public String getName() {
                return name;
            }
    
            public void setName(String name) {
                this.name = name;
            }
    
        }
    }

### **参考： [stackoverflow][] ** ###

[Spring cloud gateway]: https://blog.csdn.net/qq_38380025/article/details/104936705
[Spring cloud gateway _404 _HTTP]: https://blog.csdn.net/qq_38380025/article/details/104755040
[Spring cloud gateway _response]: https://blog.csdn.net/qq_38380025/article/details/100032490
[Spring cloud gateway 1]: https://blog.csdn.net/qq_38380025/article/details/102968559
[20200316112057917.png]: /images/20230528/3be868731af04de7828ec6e975d29355.png
[stackoverflow]: https://stackoverflow.com/questions/48221295/how-to-specify-custom-filter-in-application-yml-spring-cloud-gateway