DynamicRouteLoader.java
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package org.jeecg.loader;
import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.ObjectUtil;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.nacos.api.NacosFactory;
import com.alibaba.nacos.api.config.ConfigService;
import com.alibaba.nacos.api.config.listener.Listener;
import com.alibaba.nacos.api.exception.NacosException;
import com.google.common.collect.Lists;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.ObjectUtils;
import org.apache.commons.lang3.StringUtils;
import org.jeecg.common.base.BaseMap;
import org.jeecg.common.constant.CacheConstant;
import org.jeecg.common.util.RedisUtil;
import org.jeecg.config.GatewayRoutersConfig;
import org.jeecg.config.RouterDataType;
import org.jeecg.loader.repository.DynamicRouteService;
import org.jeecg.loader.repository.MyInMemoryRouteDefinitionRepository;
import org.jeecg.loader.vo.MyRouteDefinition;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.cloud.gateway.event.RefreshRoutesEvent;
import org.springframework.cloud.gateway.filter.FilterDefinition;
import org.springframework.cloud.gateway.handler.predicate.PredicateDefinition;
import org.springframework.cloud.gateway.route.RouteDefinition;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.context.annotation.DependsOn;
import org.springframework.stereotype.Component;
import reactor.core.publisher.Mono;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.Executor;
/**
* 动态路由加载器
*
* @author : zyf
* @date :2020-11-10
*/
@Slf4j
@Component
@RefreshScope
@DependsOn({"gatewayRoutersConfig"})
public class DynamicRouteLoader implements ApplicationEventPublisherAware {
public static final long DEFAULT_TIMEOUT = 30000;
@Autowired
private GatewayRoutersConfig gatewayRoutersConfig;
private MyInMemoryRouteDefinitionRepository repository;
private ApplicationEventPublisher publisher;
private DynamicRouteService dynamicRouteService;
private ConfigService configService;
private RedisUtil redisUtil;
/**
* 需要拼接key的路由条件
*/
private static String[] GEN_KEY_ROUTERS = new String[]{"Path", "Host", "Method", "After", "Before", "Between", "RemoteAddr"};
public DynamicRouteLoader(MyInMemoryRouteDefinitionRepository repository, DynamicRouteService dynamicRouteService, RedisUtil redisUtil) {
this.repository = repository;
this.dynamicRouteService = dynamicRouteService;
this.redisUtil = redisUtil;
}
// @PostConstruct
// public void init() {
// init(null);
// }
public void init(BaseMap baseMap) {
log.info("初始化路由模式，dataType："+ gatewayRoutersConfig.getDataType());
if (RouterDataType.nacos.toString().endsWith(gatewayRoutersConfig.getDataType())) {
loadRoutesByNacos();
}
//从数据库加载路由
if (RouterDataType.database.toString().endsWith(gatewayRoutersConfig.getDataType())) {
loadRoutesByRedis(baseMap);
}
}
/**
* 刷新路由
*
* @return
*/
public Mono<Void> refresh(BaseMap baseMap) {
log.info("初始化路由模式，dataType："+ gatewayRoutersConfig.getDataType());
if (!RouterDataType.yml.toString().endsWith(gatewayRoutersConfig.getDataType())) {
this.init(baseMap);
}
return Mono.empty();
}
/**
* 从nacos中读取路由配置
*
* @return
*/
private void loadRoutesByNacos() {
List<RouteDefinition> routes = Lists.newArrayList();
configService = createConfigService();
if (configService == null) {
log.warn("initConfigService fail");
}
try {
String configInfo = configService.getConfig(gatewayRoutersConfig.getDataId(), gatewayRoutersConfig.getRouteGroup(), DEFAULT_TIMEOUT);
if (StringUtils.isNotBlank(configInfo)) {
log.info("获取网关当前配置:\r\n{}", configInfo);
routes = JSON.parseArray(configInfo, RouteDefinition.class);
}else{
log.warn("ERROR: 从Nacos获取网关配置为空，请确认Nacos配置是否正确！");
}
} catch (NacosException e) {
log.error("初始化网关路由时发生错误", e);
e.printStackTrace();
}
for (RouteDefinition definition : routes) {
log.info("update route : {}", definition.toString());
dynamicRouteService.add(definition);
}
this.publisher.publishEvent(new RefreshRoutesEvent(this));
dynamicRouteByNacosListener(gatewayRoutersConfig.getDataId(), gatewayRoutersConfig.getRouteGroup());
}
/**
* 从redis中读取路由配置
*
* @return
*/
private void loadRoutesByRedis(BaseMap baseMap) {
List<MyRouteDefinition> routes = Lists.newArrayList();
configService = createConfigService();
if (configService == null) {
log.warn("initConfigService fail");
}
Object configInfo = redisUtil.get(CacheConstant.GATEWAY_ROUTES);
if (ObjectUtil.isNotEmpty(configInfo)) {
log.info("获取网关当前配置:\r\n{}", configInfo);
JSONArray array = JSON.parseArray(configInfo.toString());
try {
routes = getRoutesByJson(array);
} catch (URISyntaxException e) {
e.printStackTrace();
}
}else{
log.warn("ERROR: 从Redis获取网关配置为空，请确认system服务是否启动成功！");
}
for (MyRouteDefinition definition : routes) {
log.info("update route : {}", definition.toString());
Integer status=definition.getStatus();
if(status.equals(0)){
dynamicRouteService.delete(definition.getId());
}else{
dynamicRouteService.add(definition);
}
}
if(ObjectUtils.isNotEmpty(baseMap)){
String delRouterId = baseMap.get("delRouterId");
if (ObjectUtils.isNotEmpty(delRouterId)) {
dynamicRouteService.delete(delRouterId);
}
}
this.publisher.publishEvent(new RefreshRoutesEvent(this));
}
/**
* redis中的信息需要处理下 转成RouteDefinition对象
* - id: login
* uri: lb://cloud-jeecg-system
* predicates:
* - Path=/jeecg-boot/sys/**,
*
* @param array
* @return
*/
public static List<MyRouteDefinition> getRoutesByJson(JSONArray array) throws URISyntaxException {
List<MyRouteDefinition> ls = new ArrayList<>();
for (int i = 0; i < array.size(); i++) {
JSONObject obj = array.getJSONObject(i);
MyRouteDefinition route = new MyRouteDefinition();
route.setId(obj.getString("routerId"));
route.setStatus(obj.getInteger("status"));
Object uri = obj.get("uri");
if (uri == null) {
route.setUri(new URI("lb://" + obj.getString("name")));
} else {
route.setUri(new URI(obj.getString("uri")));
}
Object predicates = obj.get("predicates");
if (predicates != null) {
JSONArray list = JSON.parseArray(predicates.toString());
List<PredicateDefinition> predicateDefinitionList = new ArrayList<>();
for (Object map : list) {
JSONObject json = (JSONObject) map;
PredicateDefinition predicateDefinition = new PredicateDefinition();
//update-begin-author:zyf date:20220419 for:【VUEN-762】路由条件添加异常问题,原因是部分路由条件参数需要设置固定key
String name=json.getString("name");
predicateDefinition.setName(name);
//路由条件是否拼接Key
if(ArrayUtil.contains(GEN_KEY_ROUTERS,name)) {
JSONArray jsonArray = json.getJSONArray("args");
for (int j = 0; j < jsonArray.size(); j++) {
predicateDefinition.addArg("_genkey" + j, jsonArray.get(j).toString());
}
}else{
JSONObject jsonObject = json.getJSONObject("args");
if(ObjectUtil.isNotEmpty(jsonObject)){
for (Map.Entry<String, Object> entry : jsonObject.entrySet()) {
Object valueObj=entry.getValue();
if(ObjectUtil.isNotEmpty(valueObj)) {
predicateDefinition.addArg(entry.getKey(), valueObj.toString());
}
}
}
}
//update-end-author:zyf date:20220419 for:【VUEN-762】路由条件添加异常问题,原因是部分路由条件参数需要设置固定key
predicateDefinitionList.add(predicateDefinition);
}
route.setPredicates(predicateDefinitionList);
}
Object filters = obj.get("filters");
if (filters != null) {
JSONArray list = JSON.parseArray(filters.toString());
List<FilterDefinition> filterDefinitionList = new ArrayList<>();
if (ObjectUtil.isNotEmpty(list)) {
for (Object map : list) {
JSONObject json = (JSONObject) map;
JSONArray jsonArray = json.getJSONArray("args");
String name = json.getString("name");
FilterDefinition filterDefinition = new FilterDefinition();
for (Object o : jsonArray) {
JSONObject params = (JSONObject) o;
filterDefinition.addArg(params.getString("key"), params.get("value").toString());
}
filterDefinition.setName(name);
filterDefinitionList.add(filterDefinition);
}
route.setFilters(filterDefinitionList);
}
}
ls.add(route);
}
return ls;
}
// private void loadRoutesByDataBase() {
// List<GatewayRouteVo> routeList = jdbcTemplate.query(SELECT_ROUTES, new RowMapper<GatewayRouteVo>() {
// @Override
// public GatewayRouteVo mapRow(ResultSet rs, int i) throws SQLException {
// GatewayRouteVo result = new GatewayRouteVo();
// result.setId(rs.getString("id"));
// result.setName(rs.getString("name"));
// result.setUri(rs.getString("uri"));
// result.setStatus(rs.getInt("status"));
// result.setRetryable(rs.getInt("retryable"));
// result.setPredicates(rs.getString("predicates"));
// result.setStripPrefix(rs.getInt("strip_prefix"));
// result.setPersist(rs.getInt("persist"));
// return result;
// }
// });
// if (ObjectUtil.isNotEmpty(routeList)) {
// // 加载路由
// routeList.forEach(route -> {
// RouteDefinition definition = new RouteDefinition();
// List<PredicateDefinition> predicatesList = Lists.newArrayList();
// List<FilterDefinition> filtersList = Lists.newArrayList();
// definition.setId(route.getId());
// String predicates = route.getPredicates();
// String filters = route.getFilters();
// if (StringUtils.isNotEmpty(predicates)) {
// predicatesList = JSON.parseArray(predicates, PredicateDefinition.class);
// definition.setPredicates(predicatesList);
// }
// if (StringUtils.isNotEmpty(filters)) {
// filtersList = JSON.parseArray(filters, FilterDefinition.class);
// definition.setFilters(filtersList);
// }
// URI uri = UriComponentsBuilder.fromUriString(route.getUri()).build().toUri();
// definition.setUri(uri);
// this.repository.save(Mono.just(definition)).subscribe();
// });
// log.info("加载路由:{}==============", routeList.size());
// Mono.empty();
// }
// }
/**
* 监听Nacos下发的动态路由配置
*
* @param dataId
* @param group
*/
public void dynamicRouteByNacosListener(String dataId, String group) {
try {
configService.addListener(dataId, group, new Listener() {
@Override
public void receiveConfigInfo(String configInfo) {
log.info("进行网关更新:\n\r{}", configInfo);
List<MyRouteDefinition> definitionList = JSON.parseArray(configInfo, MyRouteDefinition.class);
for (MyRouteDefinition definition : definitionList) {
log.info("update route : {}", definition.toString());
dynamicRouteService.update(definition);
}
}
@Override
public Executor getExecutor() {
log.info("getExecutor\n\r");
return null;
}
});
} catch (Exception e) {
log.error("从nacos接收动态路由配置出错!!!", e);
}
}
/**
* 创建ConfigService
*
* @return
*/
private ConfigService createConfigService() {
try {
Properties properties = new Properties();
properties.setProperty("serverAddr", gatewayRoutersConfig.getServerAddr());
if(StringUtils.isNotBlank(gatewayRoutersConfig.getNamespace())){
properties.setProperty("namespace", gatewayRoutersConfig.getNamespace());
}
if(StringUtils.isNotBlank( gatewayRoutersConfig.getUsername())){
properties.setProperty("username", gatewayRoutersConfig.getUsername());
}
if(StringUtils.isNotBlank(gatewayRoutersConfig.getPassword())){
properties.setProperty("password", gatewayRoutersConfig.getPassword());
}
return configService = NacosFactory.createConfigService(properties);
} catch (Exception e) {
log.error("创建ConfigService异常", e);
return null;
}
}
@Override
public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
this.publisher = applicationEventPublisher;
}
}