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* [首页](/?t=1557382242590) |
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* [首页](/?t=1557742456964) |
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* 开发文档 |
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* [快速体验](files/10010_快速体验.md?t=1557382242593) |
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* [项目接入到SOP](files/10011_项目接入到SOP.md?t=1557382242610) |
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* [新增接口](files/10020_新增接口.md?t=1557382242610) |
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* [业务参数校验](files/10030_业务参数校验.md?t=1557382242610) |
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* [错误处理](files/10040_错误处理.md?t=1557382242610) |
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* [编写文档](files/10041_编写文档.md?t=1557382242610) |
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* [接口交互详解](files/10050_接口交互详解.md?t=1557382242610) |
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* [easyopen支持](files/10070_easyopen支持.md?t=1557382242610) |
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* [使用签名校验工具](files/10080_使用签名校验工具.md?t=1557382242611) |
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* [ISV管理](files/10085_ISV管理.md?t=1557382242611) |
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* [路由授权](files/10090_路由授权.md?t=1557382242611) |
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* [接口限流](files/10092_接口限流.md?t=1557382242611) |
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* [SDK开发](files/10095_SDK开发.md?t=1557382242611) |
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* [使用SpringCloudGateway](files/10096_使用SpringCloudGateway.md?t=1557382242611) |
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* [应用授权](files/10097_应用授权.md?t=1557382242611) |
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* [更改数据节点名称](files/10099_更改数据节点名称.md?t=1557382242612) |
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* [对接前端](files/10100_对接前端.md?t=1557382242612) |
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* [快速体验](files/10010_快速体验.md?t=1557742456965) |
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* [项目接入到SOP](files/10011_项目接入到SOP.md?t=1557742456983) |
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* [新增接口](files/10020_新增接口.md?t=1557742456983) |
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* [业务参数校验](files/10030_业务参数校验.md?t=1557742456983) |
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* [错误处理](files/10040_错误处理.md?t=1557742456983) |
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* [编写文档](files/10041_编写文档.md?t=1557742456984) |
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* [接口交互详解](files/10050_接口交互详解.md?t=1557742456984) |
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* [easyopen支持](files/10070_easyopen支持.md?t=1557742456984) |
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* [使用签名校验工具](files/10080_使用签名校验工具.md?t=1557742456984) |
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* [ISV管理](files/10085_ISV管理.md?t=1557742456984) |
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* [路由授权](files/10090_路由授权.md?t=1557742456984) |
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* [接口限流](files/10092_接口限流.md?t=1557742456984) |
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* [SDK开发](files/10095_SDK开发.md?t=1557742456984) |
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* [使用SpringCloudGateway](files/10096_使用SpringCloudGateway.md?t=1557742456984) |
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* [应用授权](files/10097_应用授权.md?t=1557742456984) |
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* [更改数据节点名称](files/10099_更改数据节点名称.md?t=1557742456984) |
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* [对接前端](files/10100_对接前端.md?t=1557742456985) |
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* [自定义过滤器](files/10102_自定义过滤器.md?t=1557742456985) |
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* 原理分析 |
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* [原理分析之@ApiMapping](files/90010_原理分析之@ApiMapping.md?t=1557382242612) |
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* [原理分析之路由存储](files/90011_原理分析之路由存储.md?t=1557382242612) |
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* [原理分析之如何路由](files/90012_原理分析之如何路由.md?t=1557382242612) |
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* [原理分析之文档归纳](files/90013_原理分析之文档归纳.md?t=1557382242612) |
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* [常见问题](files/90100_常见问题.md?t=1557382242612) |
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* [原理分析之@ApiMapping](files/90010_原理分析之@ApiMapping.md?t=1557742456985) |
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* [原理分析之路由存储](files/90011_原理分析之路由存储.md?t=1557742456985) |
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* [原理分析之如何路由](files/90012_原理分析之如何路由.md?t=1557742456985) |
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* [原理分析之文档归纳](files/90013_原理分析之文档归纳.md?t=1557742456985) |
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* [常见问题](files/90100_常见问题.md?t=1557742456985) |
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|
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@ -0,0 +1,105 @@ |
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# 自定义过滤器 |
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|
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## zuul过滤器 |
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zuul过滤器列表如下： |
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| 类型 | 顺序 | 过滤器 | 功能 | |
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| ----- | ---- | ----------------------- | ---------------------------- | |
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| pre | -1000 | PreValidateFilter (SOP自带) | 校验签名 | |
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| pre | -999 | PreRoutePermissionFilter (SOP自带) | 路由权限校验，有些接口需要配置权限才能访问 | |
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| pre | -998 | PreLimitFilter (SOP自带) | 限流拦截器 | |
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| pre | -3 | ServletDetectionFilter | 标记处理 Servlet 的类型 | |
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| pre | -2 | Servlet30WrapperFilter | 包装 HttpServletRequest 请求 | |
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| pre | -1 | FormBodyWrapperFilter | 包装请求体 | |
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| pre | 1 | DebugFilter | 标记调试标志 | |
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| pre | 5 | PreDecorationFilter | 决定路由转发过滤器 | |
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| route | 10 | RibbonRoutingFilter | serviceId 请求转发 | |
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| route | 100 | SimpleHostRoutingFilter | url 请求转发 | |
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| route | 500 | SendForwardFilter | forward 请求转发 | |
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| post | 0 | SendErrorFilter | 处理有错误的请求响应 | |
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| post | 1000 | SendResponseFilter | 处理正常的请求响应 | |
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|
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顺序值小的优先执行，`-3`之前是sop自带的过滤器，`-3`开始是zuul自带的过滤器。 |
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|
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创建自定义过滤器可以从`-500`开始（-1000 ~ -499留给SOP）。下面是一个自定义过虑器的例子： |
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```java |
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public class PreXXXFilter extends BaseZuulFilter { |
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@Override |
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protected FilterType getFilterType() { |
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return FilterType.PRE; |
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} |
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@Override |
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protected int getFilterOrder() { |
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return -500; |
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} |
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@Override |
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protected Object doRun(RequestContext requestContext) throws ZuulException { |
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HttpServletRequest request = requestContext.getRequest(); |
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ApiParam apiParam = ZuulContext.getApiParam(); |
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String appKey = apiParam.fetchAppKey(); |
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// ...业务处理 |
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// 固定返回null |
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return null; |
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} |
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} |
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``` |
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过滤器编写完毕后，在Config中使用： |
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```java |
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@Configuration |
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public class ZuulConfig extends AlipayZuulConfiguration { |
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... |
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@Bean |
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PreXXXFilter preXXXFilter() { |
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return new PreXXXFilter(); |
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} |
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... |
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} |
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``` |
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## spring cloud gateway |
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跟zuul同理 |
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```java |
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public class XXXFilter implements GlobalFilter, Ordered { |
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@Override |
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public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { |
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ApiParam apiParam = (ApiParam)exchange.getAttribute(SopConstants.CACHE_API_PARAM); |
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String appKey = apiParam.fetchAppKey(); |
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// ...业务处理 |
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... |
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return chain.filter(exchange); |
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} |
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@Override |
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public int getOrder() { |
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return -500; |
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} |
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} |
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``` |
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使用过滤器： |
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```java |
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@Configuration |
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public class GatewayConfig extends AlipayGatewayConfiguration { |
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... |
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@Bean |
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XXXFilter xxxFilter() { |
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return new XXXFilter(); |
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} |
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... |
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} |
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``` |
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