55 lines
2.3 KiB
Markdown
55 lines
2.3 KiB
Markdown
# Sentinel Spring Cloud Gateway Adapter
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Sentinel provides integration module with Spring Cloud Gateway.
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The integration module is based on the Sentinel Reactor Adapter.
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> This module is quite similar to sentinel-spring-cloud-gateway-adapter and The difference is that this module has made some adaptations for webflux 6.x.
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> The usage is consistent with sentinel-spring-cloud-gateway-adapter, with the difference being that the maven dependency is different.
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Add the following dependency in `pom.xml` (if you are using Maven):
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```xml
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<dependency>
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<groupId>com.alibaba.csp</groupId>
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<artifactId>sentinel-spring-cloud-gateway-v6x-adapter</artifactId>
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<version>x.y.z</version>
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</dependency>
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```
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Then you only need to inject the corresponding `SentinelGatewayFilter` and `SentinelGatewayBlockExceptionHandler` instance
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in Spring configuration. For example:
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```java
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@Configuration
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public class GatewayConfiguration {
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private final List<ViewResolver> viewResolvers;
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private final ServerCodecConfigurer serverCodecConfigurer;
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public GatewayConfiguration(ObjectProvider<List<ViewResolver>> viewResolversProvider,
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ServerCodecConfigurer serverCodecConfigurer) {
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this.viewResolvers = viewResolversProvider.getIfAvailable(Collections::emptyList);
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this.serverCodecConfigurer = serverCodecConfigurer;
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}
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@Bean
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@Order(-1)
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public SentinelGatewayBlockExceptionHandler sentinelGatewayBlockExceptionHandler() {
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// Register the block exception handler for Spring Cloud Gateway.
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return new SentinelGatewayBlockExceptionHandler(viewResolvers, serverCodecConfigurer);
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}
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@Bean
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@Order(-1)
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public GlobalFilter sentinelGatewayFilter() {
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return new SentinelGatewayFilter();
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}
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}
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```
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The gateway adapter will regard all `routeId` (defined in Spring properties) and all customized API definitions
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(defined in `GatewayApiDefinitionManager` of `sentinel-api-gateway-adapter-common` module) as resources.
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You can register various customized callback in `GatewayCallbackManager`:
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- `setBlockHandler`: register a customized `BlockRequestHandler` to handle the blocked request. The default implementation is `DefaultBlockRequestHandler`, which returns default message like `Blocked by Sentinel: FlowException`.
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