怎么用Java实现网上电商项目

这期内容当中小编将会给大家带来有关怎么用Java实现网上电商项目，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

一、项目简述

本系统功能包括： 一款基于Springboot+Vue的电商项目，前后端分离项目，前台后台都有，前台商品展示购买，购物车分类，订 单查询等等，后台商品管理，订单管理，信息维护，用户管理等等。

二、项目运行

环境配置： Jdk1.8 + Tomcat8.5 + Mysql + HBuilderX (Webstorm也 行)+ Eclispe (IntelliJ IDEA,Eclispe,MyEclispe,Sts都支 持)。

项目技术： Springboot + Maven + Mybatis + Vue + Redis^K, B/S 模式+ Maven等等，附带支付宝沙箱环境以及支付环节代码。

商品相关业务代码：

/**
 * @author Qiu
 * @description 商品相关业务
 */
 
@RestController
@CrossOrigin
public class ProductController {
    final ProductTypeService productTypeService;
    final ProductBrandService productBrandService;
    final ProductService productService;
    public ProductController(ProductService productService, ProductTypeService productTypeService,ProductBrandService productBrandService) {
        this.productTypeService = productTypeService;
        this.productBrandService = productBrandService;
        this.productService = productService;
    }
 
    /*商品类别*/
    @RequestMapping(value = "/product/findById")
    private CommonResult findById(Integer productId) {
        Product product = productService.selectById(productId);
        if(product!=null){
            return CommonResult.success("商品查询成功",product);
        }else{
            return CommonResult.error("商品查询失败");
        }
    }
    @RequestMapping(value = "/product/findByKey")
    private CommonResult findByKey(String productNo) {
        Product product = productService.selectByKey(productNo);
        if(product!=null){
            return CommonResult.success("商品查询成功",product);
        }else{
            return CommonResult.error("商品查询失败");
        }
    }
    @RequestMapping(value = "/product/findIdByKey")
    private CommonResult findIdByKey(String productNo) {
        Integer productId = productService.selectIdByKey(productNo);
        if(productId!=null){
            return CommonResult.success("商品id查询成功",productId);
        }else{
            return CommonResult.error("商品id查询失败");
        }
    }
    @RequestMapping(value = "/product/findCount")
    private CommonResult findCount() {
        Integer count = productService.selectCount();
        if(count!=null){
            return CommonResult.success("商品数量查询成功",count);
        }else{
            return CommonResult.error("商品数量查询失败");
        }
    }
    @RequestMapping(value = "/product/existsKey")
    private CommonResult existsKey(String productNo) {
        Boolean isExist = productService.existsWithPrimaryKey(productNo);
        if(isExist!=null){
            return CommonResult.success("商品是否存在查询成功",isExist);
        }else{
            return CommonResult.error("商品是否存在查询失败");
        }
    }
    @RequestMapping(value = "/product/existsType")
    private CommonResult existsType(String productType) {
        Boolean isExist = productService.existsProductType(productType);
        if(isExist!=null){
            return CommonResult.success("查询成功",isExist);
        }else{
            return CommonResult.error("查询失败");
        }
    }
    @RequestMapping(value = "/product/existsBrand")
    private CommonResult existsBrand(String productBrand) {
        Boolean isExist = productService.existsProductBrand(productBrand);
        if(isExist!=null){
            return CommonResult.success("查询成功",isExist);
        }else{
            return CommonResult.error("查询失败");
        }
    }
    @RequestMapping(value = "/product/findAll")
    private CommonResult findAll() {
        List<Product> products = productService.selectAll();
        if(products!=null){
            return CommonResult.success("全部商品信息查询成功",products);
        }else{
            return CommonResult.error("全部商品信息查询失败");
        }
    }
    @RequestMapping(value = "/product/findAllSale")
    private CommonResult findAllSale() {
        List<Product> products = productService.selectAllSale();
        if(products!=null){
            return CommonResult.success("全部商品信息查询成功",products);
        }else{
            return CommonResult.error("全部商品信息查询失败");
        }
    }
    @RequestMapping(value = "/product/findAllLikeName")
    private CommonResult findAllLikeName(String keyWord) {
        List<Product> products = productService.selectAllLikeName(keyWord);
        if(products!=null){
            return CommonResult.success("全部商品信息查询成功",products);
        }else{
            return CommonResult.error("全部商品信息查询失败");
        }
    }
    @RequestMapping(value = "/product/findAllLikeType")
    private CommonResult findAllLikeType(String keyWord) {
        List<Product> products = productService.selectAllLikeType(keyWord);
        if(products!=null){
            return CommonResult.success("全部商品信息查询成功",products);
        }else{
            return CommonResult.error("全部商品信息查询失败");
        }
    }
    @RequestMapping(value = "/product/findAllLikeBrand")
    private CommonResult findAllLikeBrand(String keyWord) {
        List<Product> products = productService.selectAllLikeBrand(keyWord);
        if(products!=null){
            return CommonResult.success("全部商品信息查询成功",products);
        }else{
            return CommonResult.error("全部商品信息查询失败");
        }
    }
    @RequestMapping(value = "/product/findAllByType")
    private CommonResult findAllByType() {
        List<Map<String, Object>> maps = productService.selectAllByType();
        if(maps!=null){
            return CommonResult.success("商品分类信息查询成功",maps);
        }else{
            return CommonResult.error("商品分类信息查询失败");
        }
    }
 
    @RequestMapping(value = "/product/add")
    private CommonResult add(Product product) {
        System.out.println(product);
        if(productService.insertData(product)){
            return CommonResult.success("添加商品成功",product);
        }else{
            return CommonResult.error("添加商品失败");
        }
    }
 
    @RequestMapping(value = "/product/update")
    private CommonResult update(Product product) {
        if(product.getIsNew()!=null && product.getIsNew()){
            product.setSaleTime(new Date());
        }
        if(productService.updateById(product)){
            return CommonResult.success("修改商品成功",product);
        }else{
            return CommonResult.error("修改商品失败");
        }
    }
 
    @RequestMapping(value = "/product/delete")
    private CommonResult delete(Integer productId) {
        if(productService.deleteById(productId)){
            return CommonResult.success("商品删除成功","productId：" + productId);
        }else{
            return CommonResult.error("商品删除失败");
        }
    }
 
    /*商品类别*/
    @RequestMapping(value = "/productType/add")
    private CommonResult addType(ProductType productType) {
        if(productTypeService.insertData(productType)){
            return CommonResult.success("商品分类添加成功",productType);
        }else{
            return CommonResult.error("商品分类添加失败");
        }
    }
 
    @RequestMapping(value = "/productType/update")
    private CommonResult updateType(ProductType productType) {
        if(productTypeService.updateById(productType)){
            return CommonResult.success("商品分类修改成功",productType);
        }else{
            return CommonResult.error("商品分类修改失败");
        }
    }
 
    @RequestMapping(value = "/productType/deleteById")
    private CommonResult deleteTypeById(Integer typeId) {
        if(productTypeService.deleteById(typeId)){
            return CommonResult.success("商品分类删除成功","typeId: "+typeId);
        }else{
            return CommonResult.error("商品分类删除失败");
        }
    }
 
    @RequestMapping(value = "/productType/deleteByName")
    private CommonResult deleteTypeByName(String typeName) {
        if(productTypeService.deleteByName(typeName)){
            return CommonResult.success("商品分类删除成功","typeName: "+typeName);
        }else{
            return CommonResult.error("商品分类删除失败");
        }
    }
 
    @RequestMapping(value = "/productType/existsTypeName")
    private CommonResult existsTypeName(Integer typeId,String typeName) {
        Boolean isExist = productTypeService.existsWithTypeName(typeId,typeName);
        if(isExist!=null){
            return CommonResult.success("查询成功",isExist);
        }else{
            return CommonResult.error("查询失败");
        }
    }
 
    @RequestMapping(value = "/productType/findAll")
    private CommonResult findAllType() {
        List<ProductType> productTypes = productTypeService.selectAll();
        if(productTypes!=null){
            return CommonResult.success("商品分类查询成功",productTypes);
        }else{
            return CommonResult.error("商品分类查询失败");
        }
    }
 
    @RequestMapping(value = "/productType/findAllName")
    private CommonResult findAllTypeName() {
        List<String> names = productTypeService.selectAllName();
        if(names!=null){
            return CommonResult.success("商品分类名称查询成功",names);
        }else{
            return CommonResult.error("商品分类名称查询失败");
        }
    }
 
    /*商品品牌*/
    @RequestMapping(value = "/productBrand/add")
    private CommonResult addBrand(ProductBrand productBrand) {
        if(productBrandService.insertData(productBrand)){
            return CommonResult.success("商品品牌添加成功",productBrand);
        }else{
            return CommonResult.error("商品品牌添加失败");
        }
    }
 
    @RequestMapping(value = "/productBrand/update")
    private CommonResult updateBrand(ProductBrand productBrand) {
        if(productBrandService.updateById(productBrand)){
            return CommonResult.success("商品品牌修改成功",productBrand);
        }else{
            return CommonResult.error("商品品牌修改失败");
        }
    }
 
    @RequestMapping(value = "/productBrand/deleteById")
    private CommonResult deleteBrandById(Integer brandId) {
        if(productBrandService.deleteById(brandId)){
            return CommonResult.success("商品品牌删除成功","brandId: "+brandId);
        }else{
            return CommonResult.error("商品品牌删除失败");
        }
    }
 
    @RequestMapping(value = "/productBrand/deleteByName")
    private CommonResult deleteBrandByName(String brandName) {
        if(productBrandService.deleteByName(brandName)){
            return CommonResult.success("商品品牌删除成功","brandName: "+brandName);
        }else{
            return CommonResult.error("商品品牌删除失败");
        }
    }
 
    @RequestMapping(value = "/productBrand/findAll")
    private CommonResult findAllBrand() {
        List<ProductBrand> productBrands = productBrandService.selectAll();
        if(productBrands!=null){
            return CommonResult.success("商品品牌查询成功",productBrands);
        }else{
            return CommonResult.error("商品品牌查询失败");
        }
    }
 
    @RequestMapping(value = "/productBrand/existsBrandName")
    private CommonResult existsBrandName(Integer brandId,String brandName) {
        Boolean isExist = productBrandService.existsWithBrandName(brandId,brandName);
        if(isExist!=null){
            return CommonResult.success("查询成功",isExist);
        }else{
            return CommonResult.error("查询失败");
        }
    }
 
    @RequestMapping(value = "/productBrand/findAllName")
    private CommonResult findAllBrandName() {
        List<String> names = productBrandService.selectAllName();
        if(names!=null){
            return CommonResult.success("商品品牌名称查询成功",names);
        }else{
            return CommonResult.error("商品品牌名称查询失败");
        }
    }
}

商品规格、商品与商品规格的关联代码：

/**
 * @author Qiu
 * @description 商品规格、商品与商品规格的关联
 */
 
@RestController
@CrossOrigin
public class SpecsController {
    final SpecsService specsService;
    final ProductSpecsService productSpecsService;
    public SpecsController(SpecsService specsService,ProductSpecsService productSpecsService) {
        this.specsService = specsService;
        this.productSpecsService = productSpecsService;
    }
    /*根据id查询规格*/
    @RequestMapping(value = "/specs/findById")
    private CommonResult findById(Integer specsId) {
        Specs specs = specsService.selectById(specsId);
        if(specs!=null){
            return CommonResult.success("查询成功",specs);
        }else{
            return CommonResult.error("查询失败");
        }
    }
 
    /*查询所有规格信息*/
    @RequestMapping(value = "/specs/findAll")
    private CommonResult findAllSpecs() {
        List<Specs> specs = specsService.selectAll();
        if(specs!=null){
            return CommonResult.success("查询成功",specs);
        }else{
            return CommonResult.error("查询失败");
        }
    }
    
    @RequestMapping(value = "/specs/existsSpecsName")
    private CommonResult existsSpecsName(Integer specsId, String specsName, String productType) {
        Boolean isExist = specsService.existsWithSpecsName(specsId,specsName,productType);
        if(isExist!=null){
            return CommonResult.success("查询成功",isExist);
        }else{
            return CommonResult.error("查询失败");
        }
    }
 
    @RequestMapping(value = "/specs/findAllByType")
    private CommonResult findAllSpecsByType(String productType) {
        List<Specs> specs = specsService.selectAllByType(productType);
        if(specs!=null){
            return CommonResult.success("查询成功",specs);
        }else{
            return CommonResult.error("查询失败");
        }
    }
 
    @RequestMapping(value = "/specs/add")
    private CommonResult addSpecs(Specs specs) {
        if(specs!=null){
            if(specsService.insertData(specs)){
                return CommonResult.success("添加成功",specs);
            }else{
                return CommonResult.error("添加失败");
            }
        }
        return CommonResult.error("数据不存在");
    }
 
    @RequestMapping(value = "/specs/update")
    private CommonResult updateSpecs(Specs specs) {
        if(specsService.updateById(specs)){
            return CommonResult.success("更新成功",specs);
        }else{
            return CommonResult.error("更新失败");
        }
    }
 
    @RequestMapping(value = "/specs/delete")
    private CommonResult deleteSpecs(Integer specsId) {
        if(specsService.deleteById(specsId)){
            return CommonResult.success("删除成功",specsId);
        }else{
            return CommonResult.error("删除失败");
        }
    }
 
 
 
    /*商品 与 规格 的关联表*/
 
    /*查询所有商品规格对应信息*/
    @RequestMapping(value = "/productSpecs/findAll")
    private CommonResult findAll() {
        List<ProductSpecs> productSpecs = productSpecsService.selectAll();
        if(productSpecs!=null){
            return CommonResult.success("查询成功",productSpecs);
        }else{
            return CommonResult.error("查询失败");
        }
    }
 
 
    @RequestMapping(value = "/productSpecs/findAllByProId")
    private CommonResult findAllByProId(Integer productId) {
        List<String> specsName = productSpecsService.selectAllByProId(productId);
        if(specsName!=null){
            return CommonResult.success("查询成功",specsName);
        }else{
            return CommonResult.error("查询失败");
        }
    }
 
    @RequestMapping(value = "/productSpecs/add")
    private CommonResult add(ProductSpecs productSpecs) {
        if(productSpecs!=null){
            if(productSpecsService.insertData(productSpecs)){
                return CommonResult.success("添加成功",productSpecs);
            }else{
                return CommonResult.error("添加失败");
            }
        }
        return CommonResult.error("数据不存在");
    }
 
    @RequestMapping(value = "/productSpecs/addBatch")
    private CommonResult addBatch(Integer productId,Integer[] specsIds) {
        System.out.println(productId);
        System.out.println(Arrays.toString(specsIds));
        if(specsIds!=null){
            ProductSpecs productSpecs;
            List<ProductSpecs> productSpecsList = new ArrayList<>();
            for (Integer specsId : specsIds) {
                productSpecs = new ProductSpecs();
                productSpecs.setProductId(productId);
                productSpecs.setSpecsId(specsId);
                productSpecsList.add(productSpecs);
            }
            for (ProductSpecs specs : productSpecsList) {
                System.out.println(specs);
            }
            if(productSpecsService.insertBatch(productSpecsList)){
                return CommonResult.success("添加成功",productSpecsList);
            }else{
                return CommonResult.error("添加失败");
            }
        }
        return CommonResult.error("数据不存在");
    }
 
    @RequestMapping(value = "/productSpecs/update")
    private CommonResult update(ProductSpecs productSpecs) {
        if(productSpecsService.updateById(productSpecs)){
            return CommonResult.success("更新成功",productSpecs);
        }else{
            return CommonResult.error("更新失败");
        }
    }
 
    @RequestMapping(value = "/productSpecs/delete")
    private CommonResult delete(ProductSpecs productSpecs) {
        if(productSpecsService.deleteById(productSpecs)){
            return CommonResult.success("删除成功",productSpecs);
        }else{
            return CommonResult.error("删除失败");
        }
    }
}

上述就是小编为大家分享的怎么用Java实现网上电商项目了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注亿速云行业资讯频道。