AISELL数据字典以及产品的CRUD

准备两个domain产品以及产品类型

Product类

package cn.itsource.aisell.domain;

import javax.persistence.*;
import java.math.BigDecimal;

@Entity
@Table(name = "product")
public class Product extends BaseDomain {
    private String name; //产品名称
    private String color; //产品颜色
    private String pic; //大图片
    private String smallPic;//小图片
    private BigDecimal costPrice;//成本价
    private BigDecimal salePrice;//销售价

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "types_id")
    private ProductType types;// 对应的二级产品类型
    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "unit_id")
    private Systemdictionarydetail unit;// 数据字典明细：单位
    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "brand_id")
    private Systemdictionarydetail brand;// 数据字典明细：品牌

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public String getPic() {
        return pic;
    }

    public void setPic(String pic) {
        this.pic = pic;
    }

    public String getSmallPic() {
        return smallPic;
    }

    public void setSmallPic(String smallPic) {
        this.smallPic = smallPic;
    }

    public BigDecimal getCostPrice() {
        return costPrice;
    }

    public void setCostPrice(BigDecimal costPrice) {
        this.costPrice = costPrice;
    }

    public BigDecimal getSalePrice() {
        return salePrice;
    }

    public void setSalePrice(BigDecimal salePrice) {
        this.salePrice = salePrice;
    }

    public ProductType getTypes() {
        return types;
    }

    public void setTypes(ProductType types) {
        this.types = types;
    }

    public Systemdictionarydetail getUnit() {
        return unit;
    }

    public void setUnit(Systemdictionarydetail unit) {
        this.unit = unit;
    }

    public Systemdictionarydetail getBrand() {
        return brand;
    }

    public void setBrand(Systemdictionarydetail brand) {
        this.brand = brand;
    }
}

Producttype产品类型

package cn.itsource.aisell.domain;

import javax.persistence.*;

@Entity
@Table(name = "producttype")
public class ProductType extends BaseDomain {

    private String name;//名称
    private String  descs;//描述
    //类型分两级，有一个自关联
    @ManyToOne(fetch=FetchType.LAZY)
    @JoinColumn(name="parent_id")
    private ProductType parent;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getDescs() {
        return descs;
    }

    public void setDescs(String descs) {
        this.descs = descs;
    }

    public ProductType getParent() {
        return parent;
    }

    public void setParent(ProductType parent) {
        this.parent = parent;
    }

    //通过这个字段分组查询
    public String getGroup(){
        //parent不能为空
        if(parent != null){
            return parent.getName();
        }
        return null;
    }
}

实现产品以及产品类型的高级查询

ProductQury

package cn.itsource.aisell.query;

import cn.itsource.aisell.domain.Product;
import cn.itsource.aisell.domain.Systemdictionarydetail;
import com.github.wenhao.jpa.Specifications;
import org.apache.commons.lang3.StringUtils;
import org.springframework.data.jpa.domain.Specification;

public class ProductQuery extends BaseQuery{
    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public Specification createSpecification() {
        //不写死  根据name进行高级查询
        Specification<Product> specification = Specifications.<Product>and()
                .like(StringUtils.isNotBlank(this.getName()),"name", "%"+this.getName()+"%")
                .build();
        return specification;
    }
}

ProducttypeQuery

package cn.itsource.aisell.query;

import cn.itsource.aisell.domain.ProductType;
import com.github.wenhao.jpa.Specifications;
import org.apache.commons.lang3.StringUtils;
import org.springframework.data.jpa.domain.Specification;

public class ProductTpyeQuery extends  BaseQuery {
    private  String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public Specification createSpecification() {
        //不写死  根据name进行高级查询
        Specification<ProductType> specification = Specifications.<ProductType>and()
                .like(StringUtils.isNotBlank(this.getName()),"name", "%"+this.getName()+"%")
                .build();
        return specification;
    }
}

Repository层的创建以及实现

package cn.itsource.aisell.repository;

import cn.itsource.aisell.domain.Product;

public interface ProductRepository  extends BaseRepository<Product,Long>{
}

在产品类型里面写入一个子查询方法，在后台需要二级联动查询

package cn.itsource.aisell.repository;

import cn.itsource.aisell.domain.ProductType;
import org.springframework.data.jpa.repository.Query;
import java.util.List;


public interface ProductTypeRepository extends BaseRepository<ProductType,Long> {
    //查询子的选项
    @Query("select o from ProductType o where o.parent is not null")
    List<ProductType> findChildTypes();
}

产品里面有图片上传，需要在Service写入方法

package cn.itsource.aisell.service;

import cn.itsource.aisell.domain.Product;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

public interface IProductService extends IBaseService<Product,Long> {
    void save(Product product, MultipartFile fileImage, HttpServletRequest request) throws IOException;

}

写入二级联动查询方法

package cn.itsource.aisell.service;

import cn.itsource.aisell.domain.ProductType;
import java.util.List;

public interface IProductTypeService extends IBaseService<ProductType,Long> {
   //二级查询
    List<ProductType> findChildTypes();
}

实现Service

图片文件上传

package cn.itsource.aisell.service.impl;

import cn.itsource.aisell.domain.Product;
import cn.itsource.aisell.service.IProductService;
import net.coobird.thumbnailator.Thumbnails;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

@Service
public class ProductServiceImpl extends BaseServiceImpl<Product,Long> implements IProductService {
    @Override
    public void save(Product product, MultipartFile fileImage, HttpServletRequest request) throws IOException {
        //如果fileImage不为空就证明在上传
        if(fileImage.getSize() != 0L){
            //获取application上下文 四大作用域
            ServletContext servletContext = request.getServletContext();
            //获取upload的根路径
            String rootPath = servletContext.getRealPath("/");
            //如果产品类型不为空，证明是修改图片
            if(product.getId() != null && StringUtils.isNotBlank(product.getPic())){
                //删除大图
                File file = new File(rootPath, product.getPic());
                file.delete();
                //删除小图
                file = new File(rootPath, product.getSmallPic());
                file.delete();
            }
            //随机产生名字 UUID 当前时间毫秒数
            long name = System.currentTimeMillis();//3434543534534534
            //获取上传附件的名字
            String filename = fileImage.getOriginalFilename();//a.png
            //获取文件的后缀名
            String extension = FilenameUtils.getExtension(filename);//png
            //最终生成小图的名字
            String smallFileName = name + "_small." + extension;//3434543534534534_small.png
            //最终生成文件的名字（大图）
            String bigFileName = name + "." + extension;//3434543534534534.png
            //存储大图的路径
            String filePath = "/upload/" + bigFileName;//    /upload/3434543534534534.png
            //存储小图的路径
            String smallFilePath = "/upload/" + smallFileName;//  /upload/3434543534534534_small.png
            //大图的绝对路径
            File file = new File(rootPath, filePath);//   E:\ideaProject\target\aisell/upload/3434543534534534.png
            //如果图片的父文件夹不存在，则创建
            if(!file.getParentFile().exists()){
                file.getParentFile().mkdirs();
            }
            //获取输出流
            FileOutputStream fileOutputStream = new FileOutputStream(file);
            //上传的核心代码
            IOUtils.copy(fileImage.getInputStream(),fileOutputStream);

            //大图上传完毕之后，则把路径设置到product中
            product.setPic(filePath);
            //压缩小图 --压缩小图 scale 压缩比例
            Thumbnails.of(fileImage.getInputStream()).scale(0.2f).toFile(new File(rootPath,smallFilePath));//E:\ideaProject\aisell\target/upload/3434543534534534_small.png
            //小图设置完毕之后，把路径设置到product中
            product.setSmallPic(smallFilePath);
            fileOutputStream.close();
        }
        super.save(product);
    }
}

实现二级联动查询 调用Repository方法

package cn.itsource.aisell.service.impl;

import cn.itsource.aisell.domain.ProductType;
import cn.itsource.aisell.repository.ProductTypeRepository;
import cn.itsource.aisell.service.IProductTypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class ProductTypeServiceImpl extends BaseServiceImpl<ProductType,Long>
        implements IProductTypeService{

        //导入二级查询
        @Autowired
        ProductTypeRepository productTypeRepository;

        @Override
        public List<ProductType> findChildTypes() {
            return productTypeRepository.findChildTypes();
        }


}

产品以及产品的类型的CRUD

package cn.itsource.aisell.web.controller;

import cn.itsource.aisell.common.JsonResult;
import cn.itsource.aisell.domain.Product;
import cn.itsource.aisell.query.ProductQuery;
import cn.itsource.aisell.service.IProductService;
import cn.itsource.aisell.util.AjaxResult;
import cn.itsource.aisell.util.PageFind;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.util.WebUtils;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import java.io.File;

@Controller
@RequestMapping("/product")
public class ProductController {
    @Autowired
    IProductService productService;

    @RequestMapping("/index")
    public String index(){
    return "product";
    }

    /**
     * 获取列表
     * @return
     */
    @RequestMapping("/page")
    @ResponseBody
    public PageFind datagrid(ProductQuery query){
        Page page = productService.findPageByQuery(query);
        //把Page对象转为UIPage
        PageFind pageFind = new PageFind(page);
        return pageFind;

    }

    //当你在方法上面打上此注解之后，意思就是，在执行任何方法之前，都要先执行@ModelAttribute对应的方法
    @ModelAttribute("updateProduct")
    public Product beforeEdit(Product product,String cmd){
        if(product.getId()!= null && StringUtils.isNotBlank(cmd)){
            product = productService.findOne(product.getId());
            //凡是关联对象都必须清空，否则会报n2n问题
            product.setTypes(null);
            product.setUnit(null);
            product.setBrand(null);
        }
        return product;
    }

    /**
     * 保存数据
     * @param product
     * @return
     */
    @RequestMapping("/save")
    @ResponseBody
    public AjaxResult save(Product product, HttpServletRequest request){
        return saveOrUpdate(product,request);
    }
    @RequestMapping("/update")
    @ResponseBody
    public AjaxResult update(@ModelAttribute("updateProduct") Product product,HttpServletRequest request){
        return saveOrUpdate(product,request);
    }

    private AjaxResult saveOrUpdate(Product product, HttpServletRequest request){
        try {
            //下面是解决上传文件为空报错的问题
            MultipartFile fileImage = null;
            boolean isMultipart = ServletFileUpload.isMultipartContent(request);
            if (isMultipart){
                MultipartHttpServletRequest multipartRequest = WebUtils.getNativeRequest(request, MultipartHttpServletRequest.class);
                fileImage = multipartRequest.getFile("file");
            }
            productService.save(product,fileImage,request);
            return new AjaxResult();
        } catch (Exception e) {
            e.printStackTrace();
            return new AjaxResult( "操作失败" + e.getMessage());
        }
    }

    /**
     * 删除数据
     * @param ids
     * @return
     */
    @RequestMapping("/delete")
    @ResponseBody
    public AjaxResult delete(Long[] ids,HttpServletRequest request){
        try {
            for (Long id : ids) {
                Product product = productService.findOne(id);
                ServletContext servletContext = request.getServletContext();
                //获取upload的根路径
                String rootPath = servletContext.getRealPath("/");
                if(StringUtils.isNotBlank(product.getPic())){
                    //删除大图
                    File file = new File(rootPath, product.getPic());
                    file.delete();
                    //删除小图
                    file = new File(rootPath, product.getSmallPic());
                    file.delete();
                }
                //删除数据
                productService.delete(id);
            }
            return new AjaxResult();
        } catch (Exception e) {
            e.printStackTrace();
            return  new AjaxResult( "删除失败!" + e.getMessage());
        }
    }

}

package cn.itsource.aisell.web.controller;

import cn.itsource.aisell.common.JsonResult;
import cn.itsource.aisell.domain.ProductType;
import cn.itsource.aisell.query.ProductTpyeQuery;
import cn.itsource.aisell.service.IProductTypeService;
import cn.itsource.aisell.util.PageFind;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping("productType")
public class ProductTypeController {
    @Autowired
    private IProductTypeService productTypeService;

    /**
     * 跳到主页面
     * @return
     */
    @RequestMapping("/index")
    public String index(){
        return "producttype";
    }

    /**
     * 获取列表
     * @return
     */
    @RequestMapping("/page")
    @ResponseBody
    public PageFind page(ProductTpyeQuery productTpyeQuery){
        return  new PageFind(productTypeService.findPageByQuery(productTpyeQuery));

    }


}

前台产品以及产品的jsp

product.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
    <%@include file="/WEB-INF/head.jsp" %>
    <script type="text/javascript" src="/js/product.js"></script>
    <script type="text/javascript" src="/easyui/plugin/tooltip/jeasyui.extensions.base.tooltip.js"></script>

</head>
<body>

<%--弹出框对应的按钮--%>
<div id="bb">
    <a href="javascript:void(0);" data-method="saveData" class="easyui-linkbutton c3" data-options="plain:true">保存</a>
    <a href="javascript:void(0);" onclick="$('#dlg').dialog('close')" class="easyui-linkbutton c4"
       data-options="plain:true">关闭</a>
</div>
<%--
        easyui的时候，查看默认属性与事件
       $.fn.{plugin}.defaults
        弹出框html代码
    --%>
<div id="dlg" class="easyui-dialog" data-options="width:300,height:310,buttons:'#bb',closed:true">
    <form id="ff" method="post" enctype="multipart/form-data">
        <input id="eid" type="hidden" name="id">
        <table cellpadding="5">
            <tr>
                <td>名称:</td>
                <td><input class="easyui-textbox" type="text" name="name"></input></td>
            </tr>
            <tr>
                <td>颜色:</td>
                <td>
                    <input class="easyui-textbox" type="color"   name="color"></input>
                </td>
            </tr>
            <tr>
                <td>成本价:</td>
                <td><input class="easyui-textbox" type="text" name="costPrice"></input></td>
            </tr>
            <tr>
                <td>销售价:</td>
                <td><input class="easyui-textbox" type="text" name="salePrice"></input></td>
            </tr>
            <tr>
                <td>单位:</td>
                <td>
                    <input class="easyui-combobox" name="unit.id"
                           data-options="
                        url: '/util/findUnits',
                        method: 'get',
                        valueField:'id',
                        textField:'name',
                        panelHeight:'auto'     <%--自适应高度--%>
                    ">
                </td>
            </tr>
            <tr>
                <td>品牌:</td>
                <td>
                    <input class="easyui-combobox" name="brand.id"
                           data-options="
                        url: '/util/findBrands',
                        method: 'get',
                        valueField:'id',
                        textField:'name',
                        panelHeight:'auto'     <%--自适应高度--%>
                    ">
                </td>
            </tr>
            <tr>
                <td>类型:</td>
                <td>
                    <input class="easyui-combobox" name="types.id"
                           data-options="
                        url: '/util/findTypes',
                        method: 'get',
                        valueField:'id',
                        textField:'name',
                        groupField:'group'
                    ">
                </td>
            </tr>
            <tr>
                <td>产品图片:</td>
                <td>
                    <input class="easyui-filebox" name="file" data-options="prompt:'图片', buttonText: '选择图片'">
                </td>
            </tr>


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


<%--查询工具栏--%>
<div id="tb" style="padding:10px;height:auto">
    <div>
        <form id="searchForm">
            姓名: <input name="name" class="easyui-textbox" style="width:120px">
            <a href="javascript:void(0);" data-method="search" class="easyui-linkbutton" iconCls="icon-search">搜索</a>
        </form>
    </div>
    <div style="margin-bottom:5px">
        <a href="javascript:void(0);" data-method="add" class="easyui-linkbutton" iconCls="icon-add" plain="true"></a>
        <a href="javascript:void(0);" data-method="edit" class="easyui-linkbutton" iconCls="icon-edit" plain="true"></a>
        <a href="javascript:void(0);" data-method="delete" class="easyui-linkbutton" iconCls="icon-remove"
           plain="true"></a>
    </div>
</div>

<table id="dg"  class="easyui-datagrid" title="员工管理"
       data-options="url:'/product/page',
           fit:true,
           pagination:true,
           rownumbers:true,
           toolbar:'#tb',
           onLoadSuccess:loadSuccess  <%-- 当页面渲染完毕之后才执行onLoadSuccess对应的函数--%>
        ">
    <thead>
    <tr>
        <th data-options="field:'id',checkbox:true,width:'2%'">ID</th>
        <th data-options="field:'name',width:'12%',align:'center'">名称</th>
        <th data-options="field:'color',width:'12%',align:'center',formatter:formatColor">颜色</th>
        <th data-options="field:'smallPic',width:'14%',align:'center',formatter:formatImg">图片</th>
        <th data-options="field:'costPrice',width:'12%',align:'center'">成本价</th>
        <th data-options="field:'salePrice',width:'12%',align:'center'">销售价</th>
        <th data-options="field:'types',width:'12%',align:'center',formatter:formatterTypes">类型</th>
        <th data-options="field:'unit',width:'12%',align:'center',formatter:formatterTypes">单位</th>
        <th data-options="field:'brand',width:'12%',align:'center',formatter:formatterTypes">品牌</th>
    </tr>
    </thead>
</table>
</body>
</html>

producttype.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
    <%@include file="/WEB-INF/head.jsp"%>
    <script type="text/javascript" src="/js/producttype.js"></script>
</head>
<body>

<%--弹出框对应的按钮--%>
<div id="bb">
    <a href="javascript:void(0);" data-method="saveData" class="easyui-linkbutton c3" data-options="plain:true">保存</a>
    <a href="javascript:void(0);" onclick="$('#dlg').dialog('close')" class="easyui-linkbutton c4"  data-options="plain:true">关闭</a>
</div>

<%--
        easyui的时候，查看默认属性与事件
       $.fn.{plugin}.defaults
        弹出框html代码
    --%>
<div id="dlg" class="easyui-dialog" data-options="width:300,height:310,buttons:'#bb'" >
    <form id="ff" method="post">
        <input id="eid" type="hidden" name="id">
        <table cellpadding="5">




            <tr>
                <td>name:</td>
                <td><input class="easyui-textbox" type="text" name="name" ></input></td>
            </tr>
            <tr>
                <td>descs:</td>
                <td><input class="easyui-textbox" type="text" name="descs" ></input></td>
            </tr>
            <tr>
                <td>parentId:</td>
                <td><input class="easyui-textbox" type="text" name="parentId" ></input></td>
            </tr>


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

<%--查询工具栏--%>
<div id="tb" style="padding:10px;height:auto">
    <div>
        <form id="searchForm">
            姓名: <input name="name" class="easyui-textbox" style="width:120px">
            <a href="javascript:void(0);" data-method="search" class="easyui-linkbutton" iconCls="icon-search">搜索</a>
        </form>
    </div>
    <div style="margin-bottom:5px">
        <a href="javascript:void(0);" data-method="add" class="easyui-linkbutton" iconCls="icon-add" plain="true"></a>
        <a href="javascript:void(0);" data-method="edit" class="easyui-linkbutton" iconCls="icon-edit" plain="true"></a>
        <a href="javascript:void(0);" data-method="delete" class="easyui-linkbutton" iconCls="icon-remove" plain="true"></a>
    </div>
</div>

<table id="dg" class="easyui-datagrid" title="员工管理"
       data-options="url:'/productType/page',
           fit:true,
           pagination:true,
           rownumbers:true,
           toolbar:'#tb'
        ">
    <thead>
    <tr>
        <th data-options="field:'id',checkbox:true,width:'2%'">ID</th>
        <th data-options="field:'name',width:'16%',align:'center'">name</th>
        <th data-options="field:'descs',width:'16%',align:'center'">descs</th>
        <th data-options="field:'parentId',width:'16%',align:'center'">parentId</th>
    </tr>
    </thead>
</table>
</body>
</html>