diff --git a/index/src/app/api/http/http.service.ts b/index/src/app/api/http/http.service.ts
index ecea0d2..f08f30d 100644
--- a/index/src/app/api/http/http.service.ts
+++ b/index/src/app/api/http/http.service.ts
@@ -24,7 +24,7 @@ export class HttpService {
 
     Service<T>(request: RequestObj) {
         // 设置默认值
-        request.contentType = request.contentType == null ? 'application/x-www-form-urlencoded' : 'application/json';
+        request.contentType = request.contentType == null ? 'application/x-www-form-urlencoded' : request.contentType;
         request.header = {
             'Content-Type': request.contentType
         };