微信点餐系统-买家端新增商品和类目

Posted 2021-02-06 寻找梦想的大熊

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章节感悟

1.学会freemarke语法知识，动态加载下拉列表框

2.Springboot表单验证操作

买家端新增商品和类目

1.卖家商品-新增修改页面

1.新增页面后台跳转，查询所有的类目然后放到前台“/sell/seller/product/index”

@GetMapping("/index")
public ModelAndView index(@RequestParam(value = "productId", required = false) String productId,
                          Map<String, Object> map) {
    //如果productId不为空，则查找出来保存
    if (!StringUtils.isEmpty(productId)) {
        ProductInfo productInfo = productService.findOne(productId);
        map.put("productInfo", productInfo);
    }
    //查询所有类目
    List<ProductCategory> categoryList = CategoryService.findAll();
    map.put("categoryList", categoryList);
    return new ModelAndView("product/index", map);
}

View Code

2.前端index.ftl，在ibootstrap中寻找表单元素，构建表单页面

<html>
<#include "../common/header.ftl">

<body>
<div id="wrapper" class="toggled">
    <#--边栏sidebar-->
    <#include "../common/nav.ftl">
    <#--主要内容content-->
    <div id="page-content-wrapper">
        <div class="container-fluid">
            <div class="row clearfix">
                <div class="col-md-12 column">
                    <form role="form" method="post" action="/sell/seller/product/save">
                        <input name="productId" value="${(productInfo.productId)!\'\'}" type="text" hidden>
                        <div class="form-group">
                            <label>名称</label>
                            <input name="productName" type="text" class="form-control"
                                   value="${(productInfo.productName)!\'\'}"/>
                        </div>
                        <div class="form-group">
                            <label>价格</label>
                            <input name="productPrice" type="text" class="form-control"
                                   value="${(productInfo.productPrice)!\'\'}"/>
                        </div>
                        <div class="form-group">
                            <label>库存</label>
                            <input name="productStock" type="text" class="form-control"
                                   value="${(productInfo.productStock)!\'\'}"/>
                        </div>
                        <div class="form-group">
                            <label>描述</label>
                            <input name="productDescription" type="text" class="form-control"
                                   value="${(productInfo.productDescription)!\'\'}"/>
                        </div>
                        <div class="form-group">
                            <label>图片</label>
                            <img src="${(productInfo.productIcon)!\'\'}" width="100px" height="100px">
                            <input name="productIcon" type="text" class="form-control"
                                   value="${(productInfo.productIcon)!\'\'}"/>
                        </div>
                        <div class="form-group">
                            <label>类目</label>
                            <select name="categoryType" class="form-control">
                                <#list categoryList as categoty>
                                    <option value="${categoty.categoryType}"
                                            <#if (productInfo.categoryType)?? && productInfo.categoryType == categoty.categoryType>
                                                selected
                                            </#if>
                                    >
                                        ${categoty.categoryName}
                                    </option>
                                </#list>
                            </select>
                        </div>

                        <button type="submit" class="btn btn-default">Submit</button>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
</body>
</html>

View Code

2.卖家商品-修改表单提交

1.“/sell/seller/product/save”接口

@PostMapping("/save")
public ModelAndView save(@Valid ProductForm productForm,
                         BindingResult bindingResult,
                         Map<String, Object> map) {
    //1.表单验证
    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();
    if (!StringUtils.isEmpty(productForm.getProductId())) {
        productInfo = productService.findOne(productForm.getProductId());
    } else {
        productForm.setProductId(KeyUtil.genUniqueKey());
    }
    BeanUtils.copyProperties(productForm, productInfo);
    //2.保存
    try {
        productService.save(productInfo);
    } catch (SellException e) {
        map.put("msg", e.getMessage());
        map.put("url", "/sell/seller/product/index");
        return new ModelAndView("common/error", map);
    }
    //3.跳转保存成功页面
    map.put("msg", ResultEnum.PRODUCT_SAVE_SUCCESS.getMessage());
    map.put("url", "/sell/seller/product/list");
    return new ModelAndView("common/success", map);
}

View Code

2.创建一个ProductForm类放在form下，注意from下只放提交的几个属性，不用放商品状态

package com.xiong.sell.form;

import lombok.Data;

import javax.validation.constraints.NotEmpty;
import java.math.BigDecimal;

/**
 * @author Xiong YuSong
 * 2019/1/27 12:46
 */
@Data
public class ProductForm {
    private String productId;

    /** 名字. */
    @NotEmpty(message = "名字必填")
    private String productName;

    /** 单价. */
    @NotEmpty(message = "单价必填")
    private BigDecimal productPrice;

    /** 库存. */
    @NotEmpty(message = "库存必填")
    private Integer productStock;

    /** 描述. */
    @NotEmpty(message = "描述必填")
    private String productDescription;

    /** 小图. */
    @NotEmpty(message = "图片必填")
    private String productIcon;

    /** 类目编号. */
    @NotEmpty(message = "类目编号必填")
    private Integer categoryType;
}