在写spring cloud gateway 时，网上查的资料都是把网关的路由配置写在配置文件里，但其实，可以把配置通过代码实现 示例如下：
代码语言：javascript复制 /**
* spring:
* cloud:
* gateway:
* routes:
* - id: nameRoot
* uri: http://nameservice
* predicates:
* - Path=/name/**
* - Weight=service1, 95
* filters:
* - StripPrefix=1
*/
private void createGatewayRoute(GatewayAppVo gatewayApp) {
gatewayApp.getMachineList().forEach(gatewayAppMachineVo -> {
GatewayRouteDto gatewayRouteDto = new GatewayRouteDto();
gatewayRouteDto.setId(gatewayApp.getId() "_" gatewayAppMachineVo.getServerId());
gatewayRouteDto.setPredicates(createPredicateDefinition(gatewayApp, gatewayAppMachineVo));
gatewayRouteDto.setFilters(Collections.singletonList(createFilterDefinition()));
gatewayRouteDto.setUri(gatewayAppMachineVo.getMachineHost());
gatewayRouteDto.setOrder(gatewayApp.getSequence());
redisUtils.set(STARMARK_GATEWAY_ROUTES gatewayApp.getProjectId() ":" gatewayApp.getId() "_" gatewayAppMachineVo.getServerId(),
JSONObject.toJSONString(gatewayRouteDto));
});
}
private List<PredicateDefinition> createPredicateDefinition(GatewayAppVo gatewayAppVo, GatewayAppMachineVo gatewayAppMachineVo) {
List<PredicateDefinition> predicatesList = new ArrayList<>();
//增加转发
{
Map<String, String> args = new HashMap<>();
args.put("pattern", "/" gatewayAppVo.getProjectId() "/" gatewayAppVo.getAccessPre());
args.put("pathPattern", "/" gatewayAppVo.getProjectId() "/" gatewayAppVo.getAccessPre());
PredicateDefinition predicateDefinition = new PredicateDefinition();
predicateDefinition.setArgs(args);
predicateDefinition.setName("Path");
predicatesList.add(predicateDefinition);
}
//增加权重
if (gatewayAppMachineVo.getWeight() != null) {
Map<String, String> args = new HashMap<>();
args.put("weight.group", gatewayAppMachineVo.getServerId());
args.put("weight.weight", gatewayAppMachineVo.getWeight().toString());
PredicateDefinition predicateDefinition = new PredicateDefinition();
predicateDefinition.setArgs(args);
predicateDefinition.setName("Weight");
predicatesList.add(predicateDefinition);
}
return predicatesList;
}
private FilterDefinition createFilterDefinition() {
Map<String, String> args = new HashMap<>();
args.put("parts", "1");
FilterDefinition filterDefinition = new FilterDefinition();
filterDefinition.setName("StripPrefix");
filterDefinition.setArgs(args);
return filterDefinition;
}上述代码是我做网关系统里，设置路由的代码，各位可参考！
