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【瑞蚁原创分享】9：springboot微信点餐之后台商品管理

创建controller控制层

com/imooc/controller/SellerProductController.java

package com.imooc.controller;
import com.imooc.exception.SellException;
import com.imooc.form.ProductForm;
import com.imooc.service.ProductCategoryService;
import com.imooc.service.ProductInfoService;
import com.imooc.utils.KeyUtil;
import com.imooc.vo.admin.ProductCategory;
import com.imooc.vo.admin.ProductInfo;
import com.imooc.vo.enums.ProductStatusEnum;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import javax.validation.Valid;
import java.util.List;
import java.util.Map;

/**
 * @author: menghaibin
 * @create: 2020-02-25 20:23
 * @description: 卖家端商品
 **/
Controller
RequestMapping("/seller/product")
public class SellerProductController {

    @Autowired
    private ProductInfoService productInfoService;
    @Autowired
    private ProductCategoryService productCategoryService;
}

1：查询所有商品：

@GetMapping("/list")
public ModelAndView list(@RequestParam(value = "page",defaultValue = "1") Integer page,
                         @RequestParam(value = "size",defaultValue = "2") Integer size,
                         Map<String,Object> map){
    PageRequest request = new PageRequest(page-1,size);
    Page<ProductInfo> productInfoPage = productInfoService.findAll(request);

    map.put("productInfoPage",productInfoPage);
    map.put("currentPage",page);/*当前页，用于前端分页*/
    map.put("size",size);/*每页多少条*/
    return new ModelAndView("product/list",map);
}

创建list方法需要返回的list的页面：

resources/templates/product/list.ftl

<html>
<head>
    <meta charset="UTF-8">
    <title>卖家商品列表</title>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.0.1/css/bootstrap.min.css" rel="stylesheet">
<#--侧边栏样式-->
    <link rel="stylesheet" href="/sell/css/style.css">
</head>
<body>
<div id="wrapper" class="toggled">

<#--侧栏-->
<#include "../common/nav.ftl" >

<#--主内容-->
    <div id="page-content-wrapper">
        <div class="container-fluid">
            <div class="row clearfix">
                <div class="col-md-12 column">
                    <table class="table table-bordered">
                        <thead>
                        <tr>
                            <th>商品id</th>
                            <th>姓名</th>
                            <th>图片</th>
                            <th>单价</th>
                            <th>库存</th>
                            <th>描述</th>
                            <th>类目</th>
                            <th>创建时间</th>
                            <th>修改时间</th>
                            <th colspan="2">操作</th>
                        </tr>
                        </thead>
                        <tbody>
                        <#--遍历获取订单列表-->
                        <#list productInfoPage.getContent() as productInfo>
                        <tr>
                            <td>${productInfo.productId}</td>
                            <td>${productInfo.productName}</td>
                            <td>
                            <img width="80" height="80" src="${productInfo.productIcon}">
                            </td>
                            <td>${productInfo.productPrice}</td>
                            <td>${productInfo.productStock}</td>
                            <td>${productInfo.productDescription}</td>
                            <td>${productInfo.categoryType}</td>
                            <td>${productInfo.createTime}</td>
                            <td>${productInfo.updateTime}</td>
                            <td>
                                <a href="/sell/seller/product/index?productId=${productInfo.productId}">修改</a>
                            </td>
                            <td>
                            <#if productInfo.productStatus == 0>
                                <a href="/sell/seller/product/off_sale?productId=${productInfo.productId}">下架</a>
                            <#else>
                                <a href="/sell/seller/product/on_sale?productId=${productInfo.productId}">上架</a>
                            </#if>

                            </td>
                        </tr>
                        </#list>

                        </tbody>
                    </table>
                </div>
            <#--分页-->
                <div class="col-md-12 column">
                    <ul class="pagination pull-right">
                    <#--判断上一页是否可点击-->
                    <#if currentPage lte 1>
                        <li class="disabled"><a href="#">上一页</a></li>
                    <#else>
                        <li><a href="/sell/seller/product/list?page=${currentPage-1}&size=${size}">上一页</a></li>
                    </#if>

                    <#--获取总页数-->
                    <#list 1..productInfoPage.getTotalPages() as index>
                    <#--如果等于当前页 当前页的分页标签不可点击-->
                        <#if currentPage == index>
                            <li class="disabled"><a href="#"> ${index}</a></li>
                        <#else>
                            <li><a href="/sell/seller/product/list?page=${index}&size=${size}"> ${index}</a></li>
                        </#if>

                    </#list>
                    <#--判断下一页是否可点击-->
                    <#if currentPage gte productInfoPage.getTotalPages()>
                        <li class="disabled"><a href="#">下一页</a></li>
                    <#else>
                        <li><a href="/sell/seller/product/list?page=${currentPage+1}&size=${size}">下一页</a></li>
                    </#if>
                    </ul>
                </div>
            </div>
        </div>
    </div>

</div>

</body>
</html>

预览页面：

http://127.0.0.1/sell/seller/product/list

【瑞蚁原创分享】9：springboot微信点餐之后台商品管理

2：商品上架功能：

创建商品状态枚举类：

com/imooc/vo/enums/ProductStatusEnum.java

package com.imooc.vo.enums;
import lombok.Getter;

/**
 * 商品状态（枚举）
 * Created by Administrator on 2020/2/9.
 */
@Getter
public enum ProductStatusEnum {
    up(0,"上架"),
    down(1,"下架"),
    ;
    private Integer code;
    private String message;

    ProductStatusEnum(Integer code,String message) {
        this.code = code;
        this.message = message;
    }
}

在ProductInfoService接口中追加上架和下架的方法：

/*上架*/
 public ProductInfo on_sale(String ProductId);

 /*下架*/
 public ProductInfo off_sale(String ProductId);

在ProductInfoServiceImpl类中实现上架和下架的方法：

/*上架*/
 @Override
 public ProductInfo on_sale(String ProductId) {
     ProductInfo productInfo = productInfoDao.findOne(ProductId);
     if(productInfo == null){
         throw  new SellException(ResultEnum.PRODUCT_NOT_EXIST);
     }
     productInfo.setProductStatus(0);/*更新上架状态*/
     return productInfoDao.save(productInfo);
 }

 /*下架*/
 @Override
 public ProductInfo off_sale(String ProductId) {
     ProductInfo productInfo = productInfoDao.findOne(ProductId);
     if(productInfo == null){
         throw  new SellException(ResultEnum.PRODUCT_NOT_EXIST);
     }
     productInfo.setProductStatus(1);/*更新上架状态*/
     return productInfoDao.save(productInfo);
 }

在SellerOrderController中追加on_sale上架和off_sale下架的方法

@RequestMapping("/on_sale")
public ModelAndView on_sale(@RequestParam("productId") String productId,
                            Map<String,Object> map){

    try{
        ProductInfo productInfo = productInfoService.on_sale(productId);
    }catch(SellException e){
        map.put("msg",e.getMessage());
        return new ModelAndView("common/error",map);
    }
    map.put("url","/sell/seller/product/list");
    return new ModelAndView("common/success",map);
}

@RequestMapping("/off_sale")
public ModelAndView off_sale(@RequestParam("productId") String productId,
                             Map<String,Object> map){

    try{
        ProductInfo productInfo = productInfoService.off_sale(productId);
    }catch(SellException e){
        map.put("msg",e.getMessage());
        map.put("url","/sell/seller/product/list");
        return new ModelAndView("common/error",map);
    }
    map.put("url","/sell/seller/product/list");
    return new ModelAndView("common/success",map);
}

4：商品新增和修改功能：

在SellerOrderController中追加index跳转Form表单提交页面的方法：

判断商品id是否为空，如果不为空就把数据回显到添加页面

@GetMapping("index")
/*productId:非比传的 以此来判断是修改还是新增*/
public ModelAndView index(@RequestParam(value = "productId",required = false) String productId,
                            Map<String,Object> map){
    /*如果productId不为空*/
    if(!StringUtils.isEmpty(productId)){
        ProductInfo productInfo = productInfoService.findOne(productId);
        map.put("productInfo",productInfo);
    }
    /*查询所有的类目*/
    List<ProductCategory> productCategoryList =productCategoryService.findAll();
    map.put("productCategoryList",productCategoryList);

    return new ModelAndView("product/index",map);
}

创建新增页面：

resources/templates/product/index.ftl

<html>
<head>
    <meta charset="UTF-8">
    <title>卖家商品列表</title>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.0.1/css/bootstrap.min.css" rel="stylesheet">
<#--侧边栏样式-->
    <link rel="stylesheet" href="/sell/css/style.css">
</head>
<body>
<div id="wrapper" class="toggled">

<#--侧栏-->
<#include "../common/nav.ftl" >

<#--主内容-->
    <div id="page-content-wrapper">
        <div class="container-fluid">
            <div class="row clearfix">
                <div class="col-md-12 column">
                    <#--表单提交-->
                    <form role="form" action="/sell/seller/product/save" method="post">

                        <div class="form-group">
                            <label>名称</label>
                            <input type="text" class="form-control" name="productName" value="${(productInfo.productName)!""}"/>
                        </div>

                        <div class="form-group">
                            <label>价格</label>
                            <input type="text" class="form-control" name="productPrice" value="${(productInfo.productPrice)!""}"/>
                        </div>

                        <div class="form-group">
                            <label>库存</label>
                            <input type="number" class="form-control" name="productStock" value="${(productInfo.productStock)!""}"/>
                        </div>

                        <div class="form-group">
                            <label>描述</label>
                            <input type="text" class="form-control" name="productDescription" value="${(productInfo.productDescription)!""}"/>
                        </div>

                        <div class="form-group">
                            <label>图片</label>
                            <img src="${(productInfo.productIcon)!""}" width="150" height="150">
                            <input type="text" class="form-control" name="productIcon" value="${(productInfo.productIcon)!""}"/>
                        </div>

                        <div class="form-group">
                            <label>类目</label>
                            <select name="categoryType" class="form-control" >
                                <#list productCategoryList as productCategory>
                                    <option value="${productCategory.categoryType}"
                                            <#--??:判断是否存在-->
                                            <#if (productInfo.categoryType)?? && productInfo.categoryType==productCategory.categoryType>
                                            selected
                                            </#if>
                                            >
                                            ${productCategory.categoryName}
                                    </option>
                                </#list>

                            </select>

                        </div>
                        <#--隐藏域 产品id-->
                        <input type="hidden" name="productId" value="${(productInfo.productId)!""}">
                        <#--隐藏域 产品状态-->
                        <input type="hidden" name="productStatus" value="${(productInfo.productStatus)!""}">

                        <button type="submit" class="btn btn-default">提交</button>

                    </form>
                </div>
            </div>
        </div>
    </div>

</div>

</body>
</html>

新增或者修改商品表单提交：

创建商品表单提交字段的form javabena

com/imooc/form/ProductForm.java

package com.imooc.form;

import lombok.Data;
import java.math.BigDecimal;

/**
 * @author: menghaibin
 * @create: 2020-02-26 12:30
 * @description: 商品提交表单
 **/
@Data
public class ProductForm {

    private String productId;

    /*商品名称*/
    private String productName;

    /*商品单价*/
    private BigDecimal productPrice;

    /*商品库存*/
    private Integer productStock;

    /*商品描述*/
    private String productDescription;

    /*商品小图路径*/
    private String productIcon;

    /*商品状态 0正常 1下架*/
    private Integer productStatus;

    /*类目编号*/
    private Integer categoryType;
}

在SellerOrderController中追加save商品提交方法：

@PostMapping("save")
public ModelAndView save(@Valid ProductForm productForm,
                         BindingResult bindingResult,
                         Map<String,Object> map){
    if(bindingResult.hasErrors()){
        map.put("msg",bindingResult.getFieldError().getDefaultMessage());
        map.put("url","/sell/seller/product/index");
        return new ModelAndView("common/error",map);
    }

    ProductInfo productInfo = new ProductInfo();
    /*判断是修改还是新增的赋值*/
    if(!StringUtils.isEmpty(productForm.getProductId())){
        productInfo.setProductId(productForm.getProductId());
        productInfo.setProductStatus(productForm.getProductStatus());
    }else {
        productInfo.setProductId(KeyUtil.genUniqueKey());
        productInfo.setProductStatus(ProductStatusEnum.up.getCode());
    }
    productInfo.setProductName(productForm.getProductName());
    productInfo.setProductPrice(productForm.getProductPrice());
    productInfo.setProductIcon(productForm.getProductIcon());
    productInfo.setProductDescription(productForm.getProductDescription());
    productInfo.setCategoryType(productForm.getCategoryType());
    productInfo.setProductStock(productForm.getProductStock());


    try{
        productInfoService.save(productInfo);
    }catch (SellException e){
        map.put("msg",e.getMessage());
        map.put("url","/sell/seller/product/index");
        return new ModelAndView("common/error",map);
    }
    map.put("url","/sell/seller/product/list");
    return new ModelAndView("common/success",map);
}

预览页面：

【瑞蚁原创分享】9：springboot微信点餐之后台商品管理