童车作为儿童成长过程中的重要工具,市场需求持续增长。传统的线下销售模式存在地域限制、库存管理困难等问题。我在实际开发中发现,一个高效的在线销售平台能显著提升商家的运营效率和用户体验。
这个基于Spring Boot的童车销售平台,主要解决以下几个核心痛点:
Spring Boot的自动配置特性大大简化了项目搭建过程。我在多个电商项目中使用后发现:
MySQL 5.7/8.0的选型考虑:
关键表设计技巧:
sql复制CREATE TABLE `product` (
`id` bigint NOT NULL AUTO_INCREMENT,
`title` varchar(100) NOT NULL COMMENT '商品标题',
`brand_id` bigint NOT NULL COMMENT '品牌ID',
`age_range` varchar(20) NOT NULL COMMENT '适用年龄',
`price` decimal(10,2) NOT NULL COMMENT '售价',
`stock` int NOT NULL DEFAULT '0' COMMENT '库存',
`spec_json` json DEFAULT NULL COMMENT '规格参数',
PRIMARY KEY (`id`),
KEY `idx_brand` (`brand_id`),
KEY `idx_age` (`age_range`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
采用HTML+JS+CSS的传统方案而非主流框架,主要考虑:
实际项目中,我推荐加入Vue.js或React提升交互体验。
采用Spring Security实现多角色认证:
java复制@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers("/admin/**").hasRole("ADMIN")
.antMatchers("/staff/**").hasRole("STAFF")
.antMatchers("/user/**").hasRole("USER")
.anyRequest().permitAll()
.and()
.formLogin()
.loginPage("/login")
.defaultSuccessUrl("/")
.permitAll();
}
}
实现高效的商品检索:
java复制public class ProductSpecs {
public static Specification<Product> withBrand(Long brandId) {
return (root, query, cb) ->
brandId == null ? null : cb.equal(root.get("brand").get("id"), brandId);
}
public static Specification<Product> withAgeRange(String ageRange) {
return (root, query, cb) ->
ageRange == null ? null : cb.equal(root.get("ageRange"), ageRange);
}
}
采用Redis+数据库双存储方案:
java复制public class CartItem {
private Long productId;
private String productName;
private BigDecimal price;
private Integer quantity;
private String imageUrl;
}
使用枚举定义订单状态流转:
java复制public enum OrderStatus {
UNPAID {
@Override
public OrderStatus[] next() {
return new OrderStatus[]{PAID, CANCELLED};
}
},
PAID {
@Override
public OrderStatus[] next() {
return new OrderStatus[]{SHIPPED, REFUNDING};
}
};
public abstract OrderStatus[] next();
public boolean canChangeTo(OrderStatus status) {
return Arrays.asList(next()).contains(status);
}
}
采用乐观锁防止超卖:
java复制@Transactional
public boolean reduceStock(Long productId, int quantity) {
Product product = productRepository.findById(productId).orElseThrow();
if (product.getStock() < quantity) {
return false;
}
int updated = productRepository.reduceStock(productId, quantity, product.getVersion());
return updated > 0;
}
对应的Repository方法:
java复制@Modifying
@Query("update Product p set p.stock = p.stock - :quantity, p.version = p.version + 1 " +
"where p.id = :id and p.version = :version")
int reduceStock(@Param("id") Long id,
@Param("quantity") int quantity,
@Param("version") int version);
java复制public Page<Product> searchProducts(ProductQuery query, Pageable pageable) {
if (pageable.getOffset() > MAX_OFFSET) {
return new PageImpl<>(Collections.emptyList());
}
// 实际查询逻辑
}
java复制@Cacheable(value = "products", key = "#id")
public Product getProductById(Long id) {
return productRepository.findById(id).orElseThrow();
}
java复制@Configuration
public class CorsConfig implements WebMvcConfigurer {
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**")
.allowedOrigins("*")
.allowedMethods("*")
.maxAge(3600);
}
}
在实际部署时,我建议考虑以下增强功能:
对于想要深入学习的同学,可以尝试: