系统采用SSM框架，前端使用bootstrap、css、js等，是一个二手平台。主要功能包括：商品查看及搜索、发布商品、购买、留言与回复、收藏等，以及管理员管理相关功能。
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- 首页如下
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- 详情部分
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- 当然也可以评论和回复评论
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- 选择商品后可以下单
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- 后台一些功能：
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系统是基于SSM框架，springmvc配置如下：
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"> <!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure --> <context:component-scan base-package="com.wzh.secondshop" /> <mvc:annotation-driven /> <!--静态资源映射--> <mvc:resources mapping="/statics/**" location="/statics/"/> <!-- 配置SpringMVC的视图解析器 --> <!-- 其viewClass属性的默认值就是org.springframework.web.servlet.view.JstlView --> <bean class="com.wzh.secondshop.exception.ExceptionHandler"></bean> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/views/"/> <property name="suffix" value=".jsp"/> </bean> <bean name="jacksonObjectMapper" class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean"> <property name="featuresToDisable"> <array> <util:constant static-field="com.fasterxml.jackson.databind.SerializationFeature.WRITE_DATES_AS_TIMESTAMPS" /> </array> </property> </bean> <!-- 上传文件 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="utf-8"/> <!-- 最大内存大小 --> <property name="maxInMemorySize" value="10240"/> <!-- 最大文件大小，-1为不限制大小 --> <property name="maxUploadSize" value="-1"/> </bean> <mvc:annotation-driven> <mvc:message-converters register-defaults="true"> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="objectMapper" ref="jacksonObjectMapper" /> </bean> </mvc:message-converters> </mvc:annotation-driven> </beans>
后端接受请求：
@RequestMapping(value = "/", method = RequestMethod.GET) public String getHomeGoods( ModelMap model, @RequestParam(required = false, defaultValue = "") String searchText, @RequestParam(required = false) Integer secondTypeId, @RequestParam(required = false, defaultValue = "0") int offset, @RequestParam(required = false, defaultValue = "40") int limit) { List<Good> goods = goodService.getGoodsBySearchAndType(searchText, secondTypeId, offset, limit); double goodsNum = goodService.getGoodsBySearchAndTypeCount(searchText, secondTypeId); List<FirstType> firstTypes = typeService.getAllFirstType(); for (FirstType firstType : firstTypes) { firstType.setSecondType(typeService .getSecondTypeByFirstTypeId(firstType.getId())); } model.addAttribute("firstTypes", firstTypes); model.addAttribute("goods", goods); model.addAttribute("pages", Math.ceil(goodsNum / limit)); model.addAttribute("goodsNum", goodsNum); model.addAttribute("offset", offset); model.addAttribute("limit", limit); return "home/homeGoods"; }
获取数据使用mybatis注解形式：
@Select("Select * from good_table WHERE second_type_id = #{0} and status_id = 1 ORDER BY upload_date DESC;") List<Good> getGoodsByTypeId(Integer secondTypeId);
好了，上面就是系统的实现，如果大家有什么问题，可以私信交流学习。
