Bagaimana untuk melaksanakan sistem pengurusan pembelian, penjualan dan inventori komoditi berdasarkan Springboot

package com.dev.shop.bus.controller;
 
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
 
 
@Controller
@RequestMapping("bus")
public class BusinessController {
 
    /**
     * 跳转到客户管理页面
     * @return
     */
    @RequestMapping("toCustomerManager")
    public String toCustomerManager(){
        return "business/customer/customerManager";
    }
 
    /**
     * 跳转到供应商管理页面
     * @return
     */
    @RequestMapping("toProviderManager")
    public String toProviderManager(){
        return "business/provider/providerManager";
    }
 
    /**
     * 跳转到商品管理页面
     * @return
     */
    @RequestMapping("toGoodsManager")
    public String toGoodsManager(){
        return "business/goods/goodsManager";
    }
 
    /**
     * 跳转到进货管理页面
     * @return
     */
    @RequestMapping("toInportManager")
    public String toInportManager(){
        return "business/inport/inportManager";
    }
 
    /**
     * 跳转到退货管理页面
     * @return
     */
    @RequestMapping("toOutportManager")
    public String toOutportManager(){
        return "business/outport/outportManager";
    }
 
    /**
     * 跳转到商品销售管理页面
     * @return
     */
    @RequestMapping("toSalesManager")
    public String toSalesManager(){
        return "business/sales/salesManager";
    }
 
    /**
     * 跳转到商品销售管理页面
     * @return
     */
    @RequestMapping("toSalesbackManager")
    public String toSalesbackManager(){
        return "business/salesback/salesbackManager";
    }
 
}

package com.dev.shop.bus.controller;
 
 
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.dev.shop.bus.entity.Customer;
import com.dev.shop.bus.service.ICustomerService;
import com.dev.shop.bus.vo.CustomerVo;
import com.dev.shop.sys.common.Constast;
import com.dev.shop.sys.common.DataGridView;
import com.dev.shop.sys.common.ResultObj;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
 
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
 
@RestController
@RequestMapping("/customer")
public class CustomerController {
 
    @Autowired
    private ICustomerService customerService;
 
    /**
     * 查询所有的客户
     * @param customerVo
     * @return
     */
    @RequestMapping("loadAllCustomer")
    public DataGridView loadAllCustomer(CustomerVo customerVo){
        //1.声明一个分页page对象
        IPage<Customer> page = new Page(customerVo.getPage(),customerVo.getLimit());
        //2.声明一个queryWrapper
        QueryWrapper<Customer> queryWrapper = new QueryWrapper();
        queryWrapper.like(StringUtils.isNotBlank(customerVo.getCustomername()),"customername",customerVo.getCustomername());
        queryWrapper.like(StringUtils.isNotBlank(customerVo.getConnectionpersion()),"connectionpersion",customerVo.getConnectionpersion());
        queryWrapper.like(StringUtils.isNotBlank(customerVo.getPhone()),"phone",customerVo.getPhone());
        customerService.page(page,queryWrapper);
        return new DataGridView(page.getTotal(),page.getRecords());
    }
 
    /**
     * 添加一个客户
     * @param customerVo
     * @return
     */
    @RequestMapping("addCustomer")
    public ResultObj addCustomer(CustomerVo customerVo){
        try {
            customerService.save(customerVo);
            return ResultObj.ADD_SUCCESS;
        } catch (Exception e) {
            e.printStackTrace();
            return ResultObj.ADD_ERROR;
        }
    }
 
    /**
     * 修改一个客户
     * @param customerVo
     * @return
     */
    @RequestMapping("updateCustomer")
    public ResultObj updateCustomer(CustomerVo customerVo){
        try {
            customerService.updateById(customerVo);
            return ResultObj.UPDATE_SUCCESS;
        } catch (Exception e) {
            e.printStackTrace();
            return ResultObj.UPDATE_ERROR;
        }
    }
 
    /**
     * 删除一个客户
     * @param id 客户的ID
     * @return
     */
    @RequestMapping("deleteCustomer")
    public ResultObj deleteCustomer(Integer id){
        try {
            customerService.removeById(id);
            return ResultObj.DELETE_SUCCESS;
        } catch (Exception e) {
            e.printStackTrace();
            return ResultObj.DELETE_ERROR;
        }
    }
 
    /**
     * 批量删除客户
     * @param customerVo 选中的客户
     * @return
     */
    @RequestMapping("batchDeleteCustomer")
    public ResultObj batchDeleteCustomer(CustomerVo customerVo){
        try {
            Collection<Serializable> idList = new ArrayList<Serializable>();
            for (Integer id : customerVo.getIds()) {
                idList.add(id);
            }
            customerService.removeByIds(idList);
            return ResultObj.DELETE_SUCCESS;
        } catch (Exception e) {
            e.printStackTrace();
            return ResultObj.DELETE_ERROR;
        }
    }
 
    /**
     * 加载所有客户的下拉列表
     * @return
     */
    @RequestMapping("loadAllCustomerForSelect")
    public DataGridView loadAllCustomerForSelect(){
        QueryWrapper<Customer> queryWrapper = new QueryWrapper<Customer>();
        queryWrapper.eq("available", Constast.AVAILABLE_TRUE);
        List<Customer> list = customerService.list(queryWrapper);
        return new DataGridView(list);
    }
 
}

package com.dev.shop.bus.controller;
 
 
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.dev.shop.bus.entity.Goods;
import com.dev.shop.bus.entity.Provider;
import com.dev.shop.bus.service.IGoodsService;
import com.dev.shop.bus.service.IProviderService;
import com.dev.shop.bus.vo.GoodsVo;
import com.dev.shop.sys.common.AppFileUtils;
import com.dev.shop.sys.common.Constast;
import com.dev.shop.sys.common.DataGridView;
import com.dev.shop.sys.common.ResultObj;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
 
import java.util.List;
 
@RestController
@RequestMapping("/goods")
public class GoodsController {
 
    @Autowired
    private IGoodsService goodsService;
 
    @Autowired
    private IProviderService providerService;
 
    /**
     * 查询商品
     * @param goodsVo
     * @return
     */
    @RequestMapping("loadAllGoods")
    public DataGridView loadAllGoods(GoodsVo goodsVo){
        IPage<Goods> page = new Page<>(goodsVo.getPage(),goodsVo.getLimit());
        QueryWrapper<Goods> queryWrapper = new QueryWrapper();
        queryWrapper.eq(goodsVo.getProviderid()!=null&&goodsVo.getProviderid()!=0,"providerid",goodsVo.getProviderid());
        queryWrapper.like(StringUtils.isNotBlank(goodsVo.getGoodsname()),"goodsname",goodsVo.getGoodsname());
        queryWrapper.like(StringUtils.isNotBlank(goodsVo.getProductcode()),"productcode",goodsVo.getProductcode());
        queryWrapper.like(StringUtils.isNotBlank(goodsVo.getPromitcode()),"promitcode",goodsVo.getPromitcode());
        queryWrapper.like(StringUtils.isNotBlank(goodsVo.getDescription()),"description",goodsVo.getDescription());
        queryWrapper.like(StringUtils.isNotBlank(goodsVo.getSize()),"size",goodsVo.getSize());
        queryWrapper.orderByDesc("id");
        goodsService.page(page,queryWrapper);
        List<Goods> records = page.getRecords();
        for (Goods goods : records) {
            Provider provider = providerService.getById(goods.getProviderid());
            if (null!=provider){
                goods.setProvidername(provider.getProvidername());
            }
        }
        return new DataGridView(page.getTotal(),page.getRecords());
    }
 
    /**
     * 添加商品
     * @param goodsVo
     * @return
     */
    @RequestMapping("addGoods")
    public ResultObj addGoods(GoodsVo goodsVo){
        try {
            if (goodsVo.getGoodsimg()!=null&&goodsVo.getGoodsimg().endsWith("_temp")){
                String newName = AppFileUtils.renameFile(goodsVo.getGoodsimg());
                goodsVo.setGoodsimg(newName);
            }
            goodsService.save(goodsVo);
            return ResultObj.ADD_SUCCESS;
        } catch (Exception e) {
            e.printStackTrace();
            return ResultObj.ADD_ERROR;
        }
    }
 
    /**
     * 修改商品
     * @param goodsVo
     * @return
     */
    @RequestMapping("updateGoods")
    public ResultObj updateGoods(GoodsVo goodsVo){
        try {
            //商品图片不是默认图片
            if (!(goodsVo.getGoodsimg()!=null&&goodsVo.getGoodsimg().equals(Constast.DEFAULT_IMG))){
                if (goodsVo.getGoodsimg().endsWith("_temp")){
                    String newName = AppFileUtils.renameFile(goodsVo.getGoodsimg());
                    goodsVo.setGoodsimg(newName);
                    //删除原先的图片
                    String oldPath = goodsService.getById(goodsVo.getId()).getGoodsimg();
                    AppFileUtils.removeFileByPath(oldPath);
                }
            }
            goodsService.updateById(goodsVo);
            return ResultObj.UPDATE_SUCCESS;
        } catch (Exception e) {
            e.printStackTrace();
            return ResultObj.UPDATE_ERROR;
        }
    }
 
    /**
     * 删除商品
     * @param id
     * @return
     */
    @RequestMapping("deleteGoods")
    public ResultObj deleteGoods(Integer id,String goodsimg){
        try {
            //删除商品的图片
            AppFileUtils.removeFileByPath(goodsimg);
            goodsService.removeById(id);
            return ResultObj.DELETE_SUCCESS;
        } catch (Exception e) {
            e.printStackTrace();
            return ResultObj.DELETE_ERROR;
        }
    }
 
    /**
     * 加载所有可用的商品
     * @return
     */
    @RequestMapping("loadAllGoodsForSelect")
    public DataGridView loadAllGoodsForSelect(){
        QueryWrapper<Goods> queryWrapper = new QueryWrapper<Goods>();
        queryWrapper.eq("available",Constast.AVAILABLE_TRUE);
        List<Goods> list = goodsService.list(queryWrapper);
        for (Goods goods : list) {
            Provider provider = providerService.getById(goods.getProviderid());
            if (null!=provider){
                goods.setProvidername(provider.getProvidername());
            }
        }
        return new DataGridView(list);
    }
 
    /**
     * 根据供应商ID查询商品信息
     * @param providerid    供应商ID
     * @return
     */
    @RequestMapping("loadGoodsByProviderId")
    public DataGridView loadGoodsByProviderId(Integer providerid){
        QueryWrapper<Goods> queryWrapper = new QueryWrapper<Goods>();
        queryWrapper.eq("available",Constast.AVAILABLE_TRUE);
        queryWrapper.eq(providerid!=null,"providerid",providerid);
        List<Goods> list = goodsService.list(queryWrapper);
        for (Goods goods : list) {
            Provider provider = providerService.getById(goods.getProviderid());
            if (null!=provider){
                goods.setProvidername(provider.getProvidername());
            }
        }
        return new DataGridView(list);
    }
 
 
 
}

package com.dev.shop.bus.entity;
 
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;
import lombok.experimental.Accessors;
 
import java.io.Serializable;
 
 
@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@TableName("bus_customer")
@ToString
public class Customer implements Serializable {
 
    private static final long serialVersionUID=1L;
 
    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;
 
    private String customername;
 
    private String zip;
 
    private String address;
 
    private String telephone;
 
    private String connectionpersion;
 
    private String phone;
 
    private String bank;
 
    private String account;
 
    private String email;
 
    private String fax;
 
    private Integer available;
 
 
}