使用Java对接StockTV印度股票数据源API实战指南
关键词：Java API开发、Spring Boot、WebSocket、Apache HttpClient一、项目概述
本指南将使用Java实现StockTV金融数据API的完整对接方案，包含以下核心模块：
[*]✅ REST API客户端：支持同步/异步调用
[*]✅ WebSocket实时订阅：基于Spring WebSocket
[*]✅ 企业级特性：连接池管理、熔断降级
[*]✅ 生产就绪：完整的异常处理和监控
二、环境准备
1. 技术栈要求
[*]JDK 17+
[*]Maven 3.6+
[*]Spring Boot 3.2+
[*]Apache HttpClient 5.3
2. 依赖配置（pom.xml）
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents.client5</groupId>
httpclient5</artifactId>
<version>5.3</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
spring-boot-starter-websocket</artifactId>
</dependency>
</dependencies>三、核心模块实现
1. REST客户端封装
@Component
public class StockTVClient {
private static final String BASE_URL = "https://api.stocktv.top";
private final CloseableHttpClient httpClient;
public StockTVClient() {
this.httpClient = HttpClients.custom()
.setConnectionManager(PoolingHttpClientConnectionManagerBuilder.create()
.setMaxConnTotal(100)
.setMaxConnPerRoute(20)
.build())
.build();
}
public String getStockList(String apiKey, int countryId) throws IOException {
HttpGet request = new HttpGet(BASE_URL + "/stock/stocks");
request.addHeader("X-API-KEY", apiKey);
try (CloseableHttpResponse response = httpClient.execute(request)) {
return EntityUtils.toString(response.getEntity());
}
}
}2. WebSocket客户端配置
@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {
@Override
public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
registry.addHandler(new StockWebSocketHandler(), "/stock-ws")
.setAllowedOrigins("*");
}
@Bean
public WebSocketHandler stockWebSocketHandler() {
return new StockWebSocketHandler();
}
}
public class StockWebSocketHandler extends TextWebSocketHandler {
@Override
public void afterConnectionEstablished(WebSocketSession session) {
String wsUrl = "wss://ws-api.stocktv.top/connect?key=YOUR_API_KEY";
session.sendMessage(new TextMessage(wsUrl));
}
@Override
protected void handleTextMessage(WebSocketSession session, TextMessage message) {
// 处理实时行情数据
System.out.println("收到消息: " + message.getPayload());
}
}四、业务逻辑实现
1. 股票数据服务层
@Service
public class StockService {
private final StockTVClient stockTVClient;
public StockService(StockTVClient stockTVClient) {
this.stockTVClient = stockTVClient;
}
@Retryable(maxAttempts = 3, backoff = @Backoff(delay = 1000))
public List<Stock> getIndianStocks(String apiKey) throws IOException {
String response = stockTVClient.getStockList(apiKey, 14);
return parseStockData(response);
}
private List<Stock> parseStockData(String json) {
// 使用Jackson解析JSON
ObjectMapper mapper = new ObjectMapper();
return mapper.readValue(json, new TypeReference<>() {});
}
}2. 控制器层
@RestController
@RequestMapping("/api/stocks")
public class StockController {
private final StockService stockService;
public StockController(StockService stockService) {
this.stockService = stockService;
}
@GetMapping("/india")
public ResponseEntity<List<Stock>> getIndiaStocks(
@RequestHeader("X-API-KEY") String apiKey
) {
try {
return ResponseEntity.ok(stockService.getIndianStocks(apiKey));
} catch (IOException e) {
throw new ResponseStatusException(
HttpStatus.INTERNAL_SERVER_ERROR,
"数据获取失败",
e
);
}
}
}五、高级功能扩展
1. 熔断降级（使用Resilience4j）
@CircuitBreaker(name = "stockService", fallbackMethod = "fallbackGetStocks")
@RateLimiter(name = "stockService")
public List<Stock> getIndianStocksWithCircuitBreaker(String apiKey) throws IOException {
return stockTVClient.getStockList(apiKey, 14);
}
private List<Stock> fallbackGetStocks(String apiKey, Throwable t) {
// 返回缓存数据或默认值
return Collections.emptyList();
}2. 异步调用
@Async
public CompletableFuture<List<Stock>> getStocksAsync(String apiKey) {
return CompletableFuture.supplyAsync(() -> {
try {
return stockService.getIndianStocks(apiKey);
} catch (IOException e) {
throw new CompletionException(e);
}
});
}六、生产环境配置
1. 应用配置（application.yml）
stocktv:
api:
base-url: https://api.stocktv.top
timeout: 10000
max-connections: 100
resilience4j:
circuitbreaker:
instances:
stockService:
failureRateThreshold: 50
minimumNumberOfCalls: 10
ratelimiter:
instances:
stockService:
limitForPeriod: 100
limitRefreshPeriod: 1s2. 安全配置
@Configuration
public class SecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.authorizeHttpRequests(auth -> auth
.requestMatchers("/api/**").authenticated()
.anyRequest().permitAll()
)
.httpBasic(Customizer.withDefaults());
return http.build();
}
}七、监控与调试
1. Actuator集成
<dependency>
<groupId>org.springframework.boot</groupId>
spring-boot-starter-actuator</artifactId>
</dependency>2. 自定义指标
@Bean
MeterRegistryCustomizer<MeterRegistry> metrics() {
return registry -> registry.config().commonTags("application", "stocktv-client");
}
@Timed(value = "stocktv.api.time", description = "API调用耗时")
public List<Stock> getStocksWithMetrics(String apiKey) throws IOException {
return stockService.getIndianStocks(apiKey);
}八、最佳实践建议
[*]连接管理
[*]使用连接池避免频繁建立连接
[*]设置合理的超时时间（推荐：连接超时3秒，读取超时10秒）
[*]安全防护
[*]API密钥加密存储（推荐使用Vault）
[*]启用HTTPS证书校验
[*]性能优化
[*]启用HTTP/2协议
[*]使用GZIP压缩响应
[*]日志记录
@Slf4j
public class StockTVClient {
public String getStockList(String apiKey) throws IOException {
log.debug("请求股票数据，API Key: {}", maskApiKey(apiKey));
// ...
}
private String maskApiKey(String key) {
if (key == null || key.length() < 8) return "****";
return key.substring(0, 3) + "****" + key.substring(key.length()-3);
}
}九、完整项目结构
stocktv-java/
├── src/
│ ├── main/
│ │ ├── java/
│ │ │ └── com/
│ │ │ └── stocktv/
│ │ │ ├── client/ # API客户端
│ │ │ ├── config/ # 配置类
│ │ │ ├── controller/ # 控制器
│ │ │ ├── service/ # 服务层
│ │ │ └── model/ # 数据模型
│ │ └── resources/
│ │ ├── application.yml # 应用配置
│ │ └── static/ # 静态资源
│ └── test/ # 测试代码
├── pom.xml
└── Dockerfile # 容器化配置十、扩展阅读
[*]Spring WebClient官方文档
[*]Resilience4j熔断器配置
[*]StockTV API文档中心
通过本指南，您已经掌握了使用Java对接StockTV金融数据API的核心技术。建议结合具体业务场景，在以下方向进行深度优化：
[*]数据持久化：集成MySQL/Redis存储历史数据
[*]实时计算：使用Flink进行流数据处理
[*]可视化展示：结合Echarts实现数据大屏
[*]自动化测试：使用Testcontainers进行集成测试
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