微信点餐之后台类目管理（10）
创建controller控制层
com\imooc\controller\SellCategoryController.java
package com.imooc.controller;
import com.imooc.form.CategoryForm;
import com.imooc.service.ProductCategoryService;
import com.imooc.vo.admin.ProductCategory;
import com.imooc.vo.enums.ResultEnum;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
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: 2020-02-26 14:08
* @description: 卖家类目管理
**/
Controller
RequestMapping("/seller/category")
@Slf4j
public class SellCategoryController {
@Autowired
private ProductCategoryService productCategoryService;
}
1：查询所有类目：
@GetMapping("/list")
public ModelAndView list(Map<String,Object> map){
List<ProductCategory> productCategoryList = productCategoryService.findAll();
map.put("productCategoryList",productCategoryList);
return new ModelAndView("category/list",map);
}
创建list方法需要返回的list的页面：
resources\templates\category\list.ftl
<html>
<head>
<meta charset="UTF-8">
<title>卖家类目列表</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>类目id</th>
<th>名字</th>
<th>type</th>
<th>创建时间</th>
<th>修改时间</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<#--遍历获取订单列表-->
<#list productCategoryList as category>
<tr>
<td>${category.categoryId}</td>
<td>${category.categoryName}</td>
<td>${category.categoryType}</td>
<td>${category.createTime}</td>
<td> ${category.updateTime}</td>
<td>
<a href="/sell/seller/category/index?categoryId=${category.categoryId}">修改</a>
</td>
</tr>
</#list>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
2：类目新增和修改功能：
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")
/*categoryId:非比传的 以此来判断是修改还是新增*/
public ModelAndView index(@RequestParam(value = "categoryId",required = false) Integer categoryId,
Map<String,Object> map){
ProductCategory productCategory = new ProductCategory();
if(categoryId!=null){
productCategory = productCategoryService.findOne(categoryId);
if(productCategory == null){
map.put("msg",ResultEnum.CATEGORY_NOT_EXIST.getMsg());
map.put("url","/sell/seller/category/list");
return new ModelAndView("common/error",map);
}
}
map.put("productCategory",productCategory);
return new ModelAndView("category/index",map);
}
创建新增页面：
resources\templates\category\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">
<form role="form" action="/sell/seller/category/save" method="post">
<div class="form-group">
<label>名称</label>
<input type="text" class="form-control" name="categoryName" value="${(productCategory.categoryName)!""}"/>
</div>
<div class="form-group">
<label>type</label>
<input type="text" class="form-control" name="categoryType" value="${(productCategory.categoryType)!""}"/>
</div>
<input type="hidden" name="categoryId" value="${(productCategory.categoryId)!""}">
<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\CategoryForm.java
package com.imooc.form;
import lombok.Data;
/**
* @author: menghaibin
* @create: 2020-02-26 14:43
* @description: 类目表单提交
**/
@Data
public class CategoryForm {
private Integer categoryId;
/*类目名称*/
private String categoryName;
/*类目编号*/
private Integer categoryType;
}
在SellCategoryController中追加save商品提交方法：
@RequestMapping("/save")
public ModelAndView save(@Valid CategoryForm categoryForm,
BindingResult bindingResult,
Map<String,Object> map){
if(bindingResult.hasErrors()){
map.put("msg",bindingResult.getFieldError().getDefaultMessage());
map.put("url","/sell/seller/category/index");
return new ModelAndView("common/error",map);
}
/*判断是新增还是修改*/
ProductCategory productCategory = new ProductCategory();
if (categoryForm.getCategoryId()!=null){
productCategory.setCategoryId(categoryForm.getCategoryId());
}
productCategory.setCategoryName(categoryForm.getCategoryName());
productCategory.setCategoryType(categoryForm.getCategoryType());
productCategoryService.save(productCategory);
map.put("url","/sell/seller/category/list");
return new ModelAndView("common/success",map);
}
