feat: 添加HTTP请求工具类

ccdi-lsfx/src/main/java/com/ruoyi/lsfx/util/HttpUtil.java

@@ -0,0 +1,91 @@
+package com.ruoyi.lsfx.util;
+
+import org.springframework.http.*;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestTemplate;
+
+import javax.annotation.Resource;
+import java.util.Map;
+
+/**
+ * HTTP请求工具类
+ */
+@Component
+public class HttpUtil {
+
+    @Resource
+    private RestTemplate restTemplate;
+
+    /**
+     * 发送GET请求（带请求头）
+     * @param url 请求URL
+     * @param headers 请求头
+     * @param responseType 响应类型
+     * @return 响应对象
+     */
+    public <T> T get(String url, Map<String, String> headers, Class<T> responseType) {
+        HttpHeaders httpHeaders = createHeaders(headers);
+        HttpEntity<Void> requestEntity = new HttpEntity<>(httpHeaders);
+
+        ResponseEntity<T> response = restTemplate.exchange(
+            url, HttpMethod.GET, requestEntity, responseType
+        );
+        return response.getBody();
+    }
+
+    /**
+     * 发送POST请求（JSON格式，带请求头）
+     * @param url 请求URL
+     * @param request 请求对象
+     * @param headers 请求头
+     * @param responseType 响应类型
+     * @return 响应对象
+     */
+    public <T> T postJson(String url, Object request, Map<String, String> headers, Class<T> responseType) {
+        HttpHeaders httpHeaders = createHeaders(headers);
+        httpHeaders.setContentType(MediaType.APPLICATION_JSON);
+
+        HttpEntity<Object> requestEntity = new HttpEntity<>(request, httpHeaders);
+
+        ResponseEntity<T> response = restTemplate.postForEntity(url, requestEntity, responseType);
+        return response.getBody();
+    }
+
+    /**
+     * 上传文件（Multipart格式）
+     * @param url 请求URL
+     * @param params 参数（包含文件）
+     * @param headers 请求头
+     * @param responseType 响应类型
+     * @return 响应对象
+     */
+    public <T> T uploadFile(String url, Map<String, Object> params, Map<String, String> headers, Class<T> responseType) {
+        HttpHeaders httpHeaders = createHeaders(headers);
+        httpHeaders.setContentType(MediaType.MULTIPART_FORM_DATA);
+
+        MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
+        if (params != null) {
+            params.forEach(body::add);
+        }
+
+        HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity<>(body, httpHeaders);
+
+        ResponseEntity<T> response = restTemplate.postForEntity(url, requestEntity, responseType);
+        return response.getBody();
+    }
+
+    /**
+     * 创建请求头
+     * @param headers 请求头Map
+     * @return HttpHeaders对象
+     */
+    private HttpHeaders createHeaders(Map<String, String> headers) {
+        HttpHeaders httpHeaders = new HttpHeaders();
+        if (headers != null && !headers.isEmpty()) {
+            headers.forEach(httpHeaders::set);
+        }
+        return httpHeaders;
+    }
+}