feat(shopping): 添加购物初始化接口并优化分页数据结构

- 在PageData类中添加Collections.emptyList()默认值防止空指针异常
- 为PageData类中的getter方法添加标准格式的空格
- 新增ShoppingInitRequest请求实体类用于接收购物初始化参数
- 添加modelId和targetId字段的非空验证注解
- 实现ShoppingController中的init接口方法并返回成功响应
- 导入必要的RequestBody、Valid注解和ShoppingInitRequest类

nflg-mobilebroken-common/src/main/java/com/nflg/mobilebroken/common/pojo/PageData.java

@@ -7,6 +7,7 @@ import lombok.experimental.Accessors;
 
 import java.io.Serializable;
 import java.util.Collection;
+import java.util.Collections;
 
 @Getter
 @Accessors(chain = true)
@@ -38,18 +39,18 @@ public class PageData<T> implements Serializable {
     //是否有下一页
     private boolean hasNextPage;
 
-    public boolean isHasNextPage(){
+    public boolean isHasNextPage() {
         return page < getTotalPages();
     }
 
     //是否有上一页
     private boolean hasPrevPage;
 
-    public boolean isHasPrevPage(){
+    public boolean isHasPrevPage() {
         return page > 1;
     }
 
     //分页数据
     @Setter
-    private Collection<T> items;
+    private Collection<T> items = Collections.emptyList();
 }

nflg-mobilebroken-quotation/src/main/java/com/nflg/mobilebroken/quotation/controller/app/ShoppingController.java

@@ -4,13 +4,16 @@ import com.nflg.mobilebroken.common.pojo.ApiResult;
 import com.nflg.mobilebroken.common.pojo.vo.SimpleUserVO;
 import com.nflg.mobilebroken.common.util.AppUserUtil;
 import com.nflg.mobilebroken.quotation.controller.ControllerBase;
+import com.nflg.mobilebroken.quotation.pojo.request.ShoppingInitRequest;
 import com.nflg.mobilebroken.repository.entity.TBaseCustomer;
 import com.nflg.mobilebroken.repository.service.IAppUserService;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 import javax.annotation.Resource;
+import javax.validation.Valid;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -47,4 +50,9 @@ public class ShoppingController extends ControllerBase {
             );
         }
     }
+
+    public ApiResult init(@Valid @RequestBody ShoppingInitRequest request){
+        //TODO
+        return ApiResult.success();
+    }
 }

nflg-mobilebroken-quotation/src/main/java/com/nflg/mobilebroken/quotation/pojo/request/ShoppingInitRequest.java

@@ -0,0 +1,21 @@
+package com.nflg.mobilebroken.quotation.pojo.request;
+
+import lombok.Data;
+
+import javax.validation.constraints.NotNull;
+
+@Data
+public class ShoppingInitRequest {
+
+    /**
+     * 机型ID
+     */
+    @NotNull
+    private Long modelId;
+
+    /**
+     * 报价对象ID
+     */
+    @NotNull
+    private Integer targetId;
+}