пыталась сделать доп из 3 лабы......

demo/src/main/java/com/example/demo/supply/Order/OrderController.java

@@ -1,6 +1,10 @@
 package com.example.demo.supply.Order;
 
+import com.example.demo.supply.Product.Product;
 import com.example.demo.supply.Product.ProductDto;
+import com.example.demo.supply.Supplier.Supplier;
+import com.example.demo.supply.Supplier.SupplierDto;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
@@ -30,6 +34,16 @@ public class OrderController {
         return orderService.findAllOrderProducts(id).stream().map(ProductDto::new).toList();
     }
 
+//    @PostMapping("/someSuppliers/")
+//    public List<SupplierDto> getSomeSuppliers(@RequestBody() List<Product> products) {
+//        return orderService.suppliers(products).stream().map(SupplierDto::new).toList();
+//    }
+
+//    @PostMapping("/someSuppliers/")
+//    public List<ProductDto> getSomeSuppliers(@RequestBody() List<ProductDto> products) {
+//        return products;
+//    }
+
     @PostMapping("/")
     public Long createOrder(@RequestParam() Long supplierId) {
         return new OrderDto(orderService.addOrder(supplierId)).getId();

demo/src/main/java/com/example/demo/supply/Order/OrderRepository.java

@@ -1,10 +1,14 @@
 package com.example.demo.supply.Order;
 
 import com.example.demo.supply.Product.Product;
+import com.example.demo.supply.Supplier.Supplier;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 
 import java.util.List;
 
 public interface OrderRepository extends JpaRepository<_Order, Long> {
+    @Query("SELECT distinct o.supplier FROM _Order o join Product p where p in (?1)")
+    List<Supplier> getSomeSuppliers(List<Product> products);
+
 }

demo/src/main/java/com/example/demo/supply/Order/OrderService.java

@@ -2,6 +2,7 @@ package com.example.demo.supply.Order;
 
 import com.example.demo.supply.Product.Product;
 import com.example.demo.supply.Product.ProductService;
+import com.example.demo.supply.Supplier.Supplier;
 import com.example.demo.supply.Supplier.SupplierService;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -40,6 +41,11 @@ public class OrderService {
 //                .setParameter("products", products).getResultList();
 //    }
 
+    @Transactional
+    public List<Supplier> suppliers(List<Product> products){
+        return orderRepository.getSomeSuppliers(products);
+    }
+
     @Transactional
     public _Order addProduct(Long id, Long productId) {
         final _Order currentOrder = findOrder(id);

front/src/DataService.js

@@ -51,6 +51,28 @@ export default class DataService {
         return true;
     }
 
+    static async getSomeSuppliers(){
+        const arr =[
+            {
+                "id":104,
+                "name":"prod3",
+                "cost":3333
+            },
+            {
+                "id":153,
+                "name":"prod3",
+                "cost":5555
+            }
+        ]
+
+        //const resArr = JSON.stringify(arr)
+        //console.log(resArr)
+        const response = await axios.post(this.mainUrl + `order/someSuppliers/`, {
+            body: {arr}
+        });
+        console.log(response)
+    }
+
     static async update(url, data) {
         await fetch(getFullUrl(this.mainUrl + url, data), {
             method: 'PATCH',

front/src/Pages/OrdersPage.jsx

@@ -56,7 +56,9 @@ export default function OrderPage(){
     }
 
     const handleTableClick = (tableSelectedItems) => {selectedItems = tableSelectedItems;}
-    const handleTableDblClick = (tableSelectedItem) =>{}
+    const handleTableDblClick = (tableSelectedItem) =>{
+        DataService.getSomeSuppliers()
+    }
 
     return(
         <>

front/src/models/DataService2.js

@@ -1,46 +0,0 @@
-import axios from 'axios';
-
-function toJSON(data) {
-    const jsonObj = {};
-    const fields = Object.getOwnPropertyNames(data);
-    for (const field of fields) {
-        if (data[field] === undefined) {
-            continue;
-        }
-        jsonObj[field] = data[field];
-    }
-    return jsonObj;
-}
-
-export default class DataService {
-    static dataUrlPrefix = 'http://localhost:8080/';
-
-    static async readAll(url, transformer) {
-        const response = await axios.get(this.dataUrlPrefix + url);
-        return response.data.map(item => transformer(item));
-    }
-
-    static async read(url, transformer) {
-        const response = await axios.get(this.dataUrlPrefix + url);
-        return transformer(response.data);
-    }
-
-    static async create(url, data) {
-        console.log(toJSON(data))
-        const response = await axios.post(this.dataUrlPrefix + url, {
-            name: 'prod4',
-            cost: 123
-        });
-        return true;
-    }
-
-    static async update(url, data) {
-        const response = await axios.put(this.dataUrlPrefix + url, toJSON(data));
-        return true;
-    }
-
-    static async delete(url) {
-        const response = await axios.delete(this.dataUrlPrefix + url);
-        return response.data.id;
-    }
-}