新增：产品详情查询。

carbon-back/carbon-back-service/src/main/java/com/hcloud/microserver/system/bank/controller/ProductInfoController.java

@@ -149,7 +149,7 @@ public class ProductInfoController extends CarbonBaseController {
     }
 
     @ApiOperation("获取产品详细信息")
-    @PostMapping("/findByProductInfoGuid")
+    @GetMapping("/findByProductInfoGuid")
     public ResponseBase findByProductInfoGuid(@RequestParam("productGuid") String productGuid) {
         ProductInfo productInfos = this.productInfoService.findById(productGuid);
         return responseResultSuccess(productInfos);