Spring Cloud Gateway动态路由Apollo实现详解
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背景
在之前我们了解的Spring Cloud Gateway配置路由方式有两种方式
- 通过配置文件
spring:
cloud:
gateway:
routes:
- id: test
predicates:
- Path=/ms/test
private void refreshGatewayProperties(ConfigChangeEvent changeEvent) {
log.info("Refreshing GatewayProperties!");
preDestroyGatewayProperties(changeEvent);
this.applicationContext.publishEvent(new EnvironmentChangeEvent(changeEvent.changedKeys()));
refreshGatewayRouteDefinition();
log.info("GatewayProperties refreshed!");
}
private synchronized void preDestroyGatewayProperties(ConfigChangeEvent changeEvent) {
log.info("Pre Destroy GatewayProperties!");
final boolean needClearRoutes = this.checkNeedClear(changeEvent, ID_PATTERN, this.gatewayProperties.getRoutes()
.size());
if (needClearRoutes) {
this.gatewayProperties.setRoutes(new ArrayList<>());
}
final boolean needClearDefaultFilters = this.checkNeedClear(changeEvent, DEFAULT_FILTER_PATTERN, this.gatewayProperties.getDefaultFilters()
.size());
if (needClearDefaultFilters) {
this.gatewayProperties.setDefaultFilters(new ArrayList<>());
}
log.info("Pre Destroy GatewayProperties finished!");
}
private void refreshGatewayRouteDefinition() {
log.info("Refreshing Gateway RouteDefinition!");
this.publisher.publishEvent(new RefreshRoutesEvent(this));
log.info("Gateway RouteDefinition refreshed!");
}
private boolean checkNeedClear(ConfigChangeEvent changeEvent, String pattern, int existSize) {
return changeEvent.changedKeys().stream().filter(key -> key.matches(pattern))
.filter(key -> {
ConfigChange change = changeEvent.getChange(key);
return PropertyChangeType.DELETED.equals(change.getChangeType());
}).count() == existSize;
}
}
然后我们在apollo添加namespace:route.yml
配置内容如下:
spring:
cloud:
gateway:
routes:
- id: test
predicates:
- Path=/ms/test/*
filters:
- StripPrefix=2
uri: http://localhost:9000
然后我们可以通过访问地址: http:localhost:8080/ms/test/health
看删除后是否是404，加上后是否可以正常动态路由
值得注意的是上面@ApolloConfigChangeListener中如果没有添加新的namespace，value可以不用填写，如果配置文件是yml配置文件，在监听的时候需要指定文件后缀
以上就是Spring Cloud Gateway动态路由Apollo实现详解的详细内容，更多关于Spring Cloud Gateway Apollo的资料请关注编程网其它相关文章！
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