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58 lines
1.7 KiB
58 lines
1.7 KiB
5 years ago
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# 网关拦截器
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从3.1.0开始新增了网关拦截器，使用该拦截器可做一些数据统计，日志记录等工作。
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使用方法如下：
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- 在sop-gateway工程下新增一个类，实现`RouteInterceptor`接口，实现接口中的方法。别忘了加`@Component`
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```java
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@Component
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public class MyRouteInterceptor implements RouteInterceptor {
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@Override
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public void preRoute(RouteInterceptorContext context) {
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ApiParam apiParam = context.getApiParam();
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System.out.println("请求接口：" + apiParam.fetchNameVersion());
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}
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@Override
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public void afterRoute(RouteInterceptorContext context) {
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System.out.println("请求成功，微服务返回结果：" + context.getServiceResult());
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}
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@Override
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public int getOrder() {
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return 0;
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}
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}
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```
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RouteInterceptor接口方法说明：
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- `public void preRoute(RouteInterceptorContext context)`
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路由转发前执行，在签名验证通过之后会立即执行这个方法。
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- `public void afterRoute(RouteInterceptorContext context)`
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路由转发完成后，即拿到微服务返回结果后执行这个方法
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- `public int getOrder()`
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指定拦截执行顺序，数字小的优先执行，建议从0开始。
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- `default boolean match(RouteInterceptorContext context)`
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是否匹配，返回true执行拦截器，默认true
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RouteInterceptorContext参数存放了各类参数信息。
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参考类：
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- `com.gitee.sop.gatewaycommon.interceptor.RouteInterceptor` 拦截器接口
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- `com.gitee.sop.gatewaycommon.interceptor.RouteInterceptorContext` 拦截器上下文
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- `com.gitee.sop.gatewaycommon.interceptor.MonitorRouteInterceptor` 默认实现的拦截器，用于收集监控数据
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