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a-ruoyi-gateway
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孙小云 2026-02-02 15:43:41 +08:00
parent d80502c681
commit 2b702197fa
1 changed files with 96 additions and 28 deletions
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122
src/main/java/com/ruoyi/gateway/filter/WvpAccessTokenFilter.java
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@ -5,11 +5,18 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.gateway.filter.GatewayFilter;
import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.client.WebClient;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;
import java.nio.charset.StandardCharsets;
import java.time.LocalDateTime;
/**
* WVP Access Token 过滤器
* 用于为 WVP 请求添加或替换 access-token 请求头
@ -19,9 +26,22 @@ public class WvpAccessTokenFilter extends AbstractGatewayFilterFactory<WvpAccess
private static final Logger log = LoggerFactory.getLogger(WvpAccessTokenFilter.class);
/**
* WVP token 过期时间（分钟）- 从 WVP 源码中获取
*/
private static final long TOKEN_EXPIRATION_MINUTES = 30;
/**
* 提前刷新时间（分钟）- 在 token 过期前 5 分钟刷新
*/
private static final long REFRESH_BEFORE_EXPIRATION_MINUTES = 5;
private static String cachedAccessToken = null;
private static LocalDateTime tokenExpirationTime = null;
private static final Object LOCK = new Object();
private final WebClient webClient = WebClient.builder().build();
public WvpAccessTokenFilter() {
super(Config.class);
}
@ -29,53 +49,100 @@ public class WvpAccessTokenFilter extends AbstractGatewayFilterFactory<WvpAccess
@Override
public GatewayFilter apply(Config config) {
return (exchange, chain) -> {
try {
// 获取 access token
String accessToken = getAccessToken();
String path = exchange.getRequest().getURI().getPath();
String query = exchange.getRequest().getURI().getQuery();
String fullPath = query != null ? path + "?" + query : path;
log.info("WVP 请求 - 原始路径: {}", exchange.getRequest().getURI().getPath());
log.info("WVP 请求 - 添加 access-token");
log.info("WVP 请求 - 路径: {}", fullPath);
// 修改请求，添加或替换 access-token 请求头
ServerHttpRequest modifiedRequest = exchange.getRequest().mutate()
.header("access-token", accessToken)
.build();
// 使用 WebClient 直接调用 WVP，支持自动重试
return callWvpWithRetry(fullPath, exchange, 0)
.flatMap(responseBody -> {
// 将响应写回客户端
ServerHttpResponse response = exchange.getResponse();
response.setStatusCode(HttpStatus.OK);
response.getHeaders().add("Content-Type", "application/json;charset=UTF-8");
// 创建新的 exchange
ServerWebExchange modifiedExchange = exchange.mutate()
.request(modifiedRequest)
.build();
DataBufferFactory bufferFactory = response.bufferFactory();
DataBuffer buffer = bufferFactory.wrap(responseBody.getBytes(StandardCharsets.UTF_8));
return chain.filter(modifiedExchange).then(Mono.fromRunnable(() -> {
log.info("WVP 响应 - Status: {}", modifiedExchange.getResponse().getStatusCode());
}));
} catch (Exception e) {
log.error("获取 WVP access token 失败", e);
// 即使获取 token 失败，也继续转发请求
return response.writeWith(Mono.just(buffer));
})
.onErrorResume(e -> {
log.error("WVP 请求失败", e);
return chain.filter(exchange);
}
});
};
}
/**
* 获取 access token，使用缓存机制
* 如果缓存为空，则调用 WvpTokenClient.login 获取新的 token
* 调用 WVP 接口，支持自动重试
*
* @param path 请求路径
* @param exchange ServerWebExchange
* @param retryCount 重试次数
* @return 响应体
*/
private Mono<String> callWvpWithRetry(String path, ServerWebExchange exchange, int retryCount) {
try {
String accessToken = getAccessToken();
String wvpUrl = "http://wvp-pro:18978" + path;
log.debug("调用 WVP 接口: {}, access-token: {}", wvpUrl, accessToken);
return webClient.get()
.uri(wvpUrl)
.header("access-token", accessToken)
.retrieve()
.bodyToMono(String.class)
.onErrorResume(e -> {
log.error("WVP 请求失败，尝试刷新 token 并重试", e);
if (retryCount < 1) {
// 清除缓存的 token，下次会重新获取
clearCachedToken();
// 重试一次
return callWvpWithRetry(path, exchange, retryCount + 1);
}
return Mono.error(e);
});
} catch (Exception e) {
log.error("获取 access token 失败", e);
return Mono.error(e);
}
}
/**
* 获取 access token，使用缓存机制并支持提前刷新
* 如果缓存为空或即将过期，则调用 WvpTokenClient.login 获取新的 token
*/
private String getAccessToken() throws Exception {
if (cachedAccessToken == null) {
LocalDateTime now = LocalDateTime.now();
// 检查 token 是否需要刷新（不存在或即将过期）
if (cachedAccessToken == null || tokenExpirationTime == null ||
now.plusMinutes(REFRESH_BEFORE_EXPIRATION_MINUTES).isAfter(tokenExpirationTime)) {
synchronized (LOCK) {
if (cachedAccessToken == null) {
log.info("缓存中没有 access token，正在登录 WVP...");
// 双重检查
now = LocalDateTime.now();
if (cachedAccessToken == null || tokenExpirationTime == null ||
now.plusMinutes(REFRESH_BEFORE_EXPIRATION_MINUTES).isAfter(tokenExpirationTime)) {
log.info("Token 不存在或即将过期，正在刷新 WVP access token...");
WvpTokenClient.LoginResponse loginResponse = WvpTokenClient.login("admin", "admin");
if (loginResponse.getCode() == 0 && loginResponse.getData() != null) {
cachedAccessToken = loginResponse.getData().getAccessToken();
log.info("WVP 登录成功，获取到 access token");
// 设置过期时间为当前时间 + TOKEN_EXPIRATION_MINUTES
tokenExpirationTime = now.plusMinutes(TOKEN_EXPIRATION_MINUTES);
log.info("WVP 登录成功，获取到 access token，过期时间: {}", tokenExpirationTime);
} else {
throw new Exception("WVP 登录失败: " + loginResponse.getMsg());
}
}
}
}
return cachedAccessToken;
}
@ -85,6 +152,7 @@ public class WvpAccessTokenFilter extends AbstractGatewayFilterFactory<WvpAccess
public static void clearCachedToken() {
synchronized (LOCK) {
cachedAccessToken = null;
tokenExpirationTime = null;
log.info("已清除缓存的 WVP access token");
}
}