feat():分页功能

cloud-market-common/src/main/java/com/muyu/cloud/market/domin/resp/ProductListResp.java

@@ -63,6 +63,8 @@ public class ProductListResp {
     private Date createTime;
 
 
+
+
     /**
      * 数据库对象构建为返回结果对象
      * @param product

cloud-market-common/src/main/java/com/muyu/cloud/market/domin/resp/ProductTotalListResp.java

@@ -0,0 +1,35 @@
+package com.muyu.cloud.market.domin.resp;
+
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+
+/**
+ * @Author：weiran
+ * @Package：com.muyu.cloud.market.domin.resp
+ * @Project：cloud-market
+ * @name：ProductTotalListResp
+ * @Date：2024/8/26 8:32
+ */
+@Data
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+@Tag(name="数据总数列表",description = "数据和总数的响应")
+public class ProductTotalListResp {
+
+    private List<ProductListResp> productListResps;
+
+    private long total;
+
+    public static ProductTotalListResp of(List<ProductListResp> productList, long total) {
+        ProductTotalListResp response = new ProductTotalListResp();
+        response.setProductListResps(productList);
+        response.setTotal(total);
+        return response;
+    }
+}

cloud-market-server/src/main/java/com/muyu/cloud/market/controller/ProductApiController.java

@@ -5,6 +5,7 @@ import com.muyu.cloud.market.domin.req.ProductAddReq;
 import com.muyu.cloud.market.domin.req.ProductListReq;
 import com.muyu.cloud.market.domin.req.ProductUpdReq;
 import com.muyu.cloud.market.domin.resp.ProductListResp;
+import com.muyu.cloud.market.domin.resp.ProductTotalListResp;
 import com.muyu.cloud.market.service.ProductApiService;
 import com.muyu.common.core.domain.Result;
 import io.swagger.v3.oas.annotations.Operation;
@@ -40,7 +41,7 @@ public class ProductApiController {
      */
     @PostMapping(path ="/list")
     @Operation(summary = "产品列表",description = "查询全部产品信息")
-    public Result<List<ProductListResp>> selectList(@Validated @RequestBody ProductListReq productListReq){
+    public Result<ProductTotalListResp> selectList(@Validated @RequestBody ProductListReq productListReq){
         return Result.success(productApiService.selectList(productListReq));
     }
 

cloud-market-server/src/main/java/com/muyu/cloud/market/service/ProductApiService.java

@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.extension.service.IService;
 import com.muyu.cloud.market.domin.Product;
 import com.muyu.cloud.market.domin.req.ProductListReq;
 import com.muyu.cloud.market.domin.resp.ProductListResp;
+import com.muyu.cloud.market.domin.resp.ProductTotalListResp;
 
 import java.util.List;
 
@@ -21,7 +22,7 @@ public interface ProductApiService extends IService<Product> {
      * @param productListReq
      * @return
      */
-    List<ProductListResp> selectList(ProductListReq productListReq);
+    ProductTotalListResp selectList(ProductListReq productListReq);
 
     /**
      * 查询热点产品

cloud-market-server/src/main/java/com/muyu/cloud/market/service/impl/ProductApiServiceImpl.java

@@ -5,6 +5,7 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.muyu.cloud.market.domin.Product;
 import com.muyu.cloud.market.domin.req.ProductListReq;
 import com.muyu.cloud.market.domin.resp.ProductListResp;
+import com.muyu.cloud.market.domin.resp.ProductTotalListResp;
 import com.muyu.cloud.market.mapper.ProductApiMapper;
 import com.muyu.cloud.market.service.ProductApiService;
 import com.muyu.common.core.utils.StringUtils;
@@ -29,7 +30,7 @@ public class ProductApiServiceImpl extends ServiceImpl<ProductApiMapper, Product
      * @return
      */
     @Override
-    public List<ProductListResp> selectList(ProductListReq productListReq) {
+    public ProductTotalListResp selectList(ProductListReq productListReq) {
         Integer pageNum = productListReq.getPageNum();
         Integer pageSize = productListReq.getPageSize();
         LambdaQueryWrapper<Product> queryWrapper = new LambdaQueryWrapper<>();
@@ -37,12 +38,14 @@ public class ProductApiServiceImpl extends ServiceImpl<ProductApiMapper, Product
                 Product::getProductName,productListReq.getProductName());
         queryWrapper.eq(StringUtils.isNotEmpty(productListReq.getProductState()),
                 Product::getProductState,productListReq.getProductState());
+        long count = this.count(queryWrapper);
         queryWrapper.orderByDesc(Product::getProductSales);
         queryWrapper.last("LIMIT " + ((pageNum - 1) * pageSize) + ", " + pageSize);
         List<Product> productList = this.list(queryWrapper);
-        return productList.stream()
+        List<ProductListResp> productListResps = productList.stream()
                 .map(product -> ProductListResp.productListRespbuild(product))
                 .toList();
+        return ProductTotalListResp.of(productListResps, count);
     }