<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.util.*"%>
 
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@include file="../include/admin/adminHeader.jsp"%>
<%@include file="../include/admin/adminNavigator.jsp"%>

<script>
$(function(){
	
	$("#addForm").submit(function(){
		if(!checkEmpty("name","分类名称"))
			return false;
		if(!checkEmpty("categoryPic","分类上传图片"))
			return false;		
		return true;
	});
});

</script>

<title>分类管理</title>

<div class="workingArea">
	<h1 class="label label-info" >分类管理</h1>
	<br>
	<br>
	
	<div class="listDataTableDiv">
		<table class="table table-striped table-bordered table-hover  table-condensed">
			<thead>
				<tr class="success">
					<th>ID</th>
					<th>图片</th>
					<th>分类名称</th>
					<th>属性管理</th>
					<th>产品管理</th>
					<th>编辑</th>
					<th>删除</th>
				</tr>
			</thead>
			<tbody>
				<c:forEach items="${categorys}" var="c">
				
				<tr>
					<td>${c.id}</td>
					<td><img height="40px" src="img/category/${c.id}.jpg"></td>
					<td>${c.name}</td>
					 	
					<td><a href="admin_property_list?category.id=${c.id}"><span class="glyphicon glyphicon-th-list"></span></a></td>					
					<td><a href="admin_product_list?category.id=${c.id}"><span class="glyphicon glyphicon-shopping-cart"></span></a></td>					
					<td><a href="admin_category_edit?category.id=${c.id}"><span class="glyphicon glyphicon-edit"></span></a></td>
					<td><a deleteLink="true" href="admin_category_delete?category.id=${c.id}"><span class=" 	glyphicon glyphicon-trash"></span></a></td>
	
				</tr>
				</c:forEach>
			</tbody>
		</table>
	</div>
	
	<div class="pageDiv">
		<%@include file="../include/admin/adminPage.jsp" %>
	</div>
	
	<div class="panel panel-warning addDiv">
	  <div class="panel-heading">新增分类</div>
	  <div class="panel-body">
	    	<form method="post" id="addForm" action="admin_category_add" enctype="multipart/form-data">
	    		<table class="addTable">
	    			<tr>
	    				<td>分类名称</td>
	    				<td><input  id="name" name="category.name" type="text" class="form-control"></td>
	    			</tr>
	    			<tr>
	    				<td>分类圖片</td>
	    				<td>
	    					<input id="categoryPic" type="file" name="img" />
	    				</td>
	    			</tr>
	    			<tr class="submitTR">
	    				<td colspan="2" align="center">
	    					<button type="submit" class="btn btn-success">提 交</button>
	    				</td>
	    			</tr>
	    		</table>
	    	</form>
	  </div>
	</div>
	
</div>

<%@include file="../include/admin/adminFooter.jsp"%>

<script>
$(function(){
	
	$("#addForm").submit(function(){
		if(!checkEmpty("name","分类名称"))
			return false;
		if(!checkEmpty("categoryPic","分类图片"))
			return false;
		return true;
	});
});

</script>

package com.how2java.tmall.service;
import java.util.List;
import com.how2java.tmall.pojo.Category;
import com.how2java.tmall.util.Page;
public interface CategoryService{
	
	public List list();

	public void save(Category category);
	
	public int total();

	public List<Category> listByPage(Page page);
}

package com.how2java.tmall.service.impl;

import java.util.List;

import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Order;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.how2java.tmall.dao.impl.DAOImpl;
import com.how2java.tmall.pojo.Category;
import com.how2java.tmall.service.CategoryService;
import com.how2java.tmall.util.Page;

@Service
public class CategoryServiceImpl  implements CategoryService {

	@Autowired DAOImpl dao;
	@Override
	public List list() {
		DetachedCriteria dc = DetachedCriteria.forClass(Category.class);
		dc.addOrder(Order.desc("id"));
		return dao.findByCriteria(dc);
	}
	@Override
	public int total() {
		String hql = "select count(*) from Category ";
		List<Long> l= dao.find(hql);
		if(l.isEmpty())
			return 0;
		Long result= l.get(0);
		return result.intValue();
	}
	@Override
	public List<Category> listByPage(Page page) {
		DetachedCriteria dc = DetachedCriteria.forClass(Category.class);
		dc.addOrder(Order.desc("id"));
		return dao.findByCriteria(dc,page.getStart(),page.getCount());
	}
	@Override
	public void save(Category category) {
		dao.save(category);
	}
}

package com.how2java.tmall.util;

import java.awt.Image;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.DataBuffer;
import java.awt.image.DataBufferInt;
import java.awt.image.DirectColorModel;
import java.awt.image.PixelGrabber;
import java.awt.image.Raster;
import java.awt.image.RenderedImage;
import java.awt.image.WritableRaster;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

public class ImageUtil {

	public static BufferedImage change2jpg(File f) {
		try {
			java.awt.Image i = Toolkit.getDefaultToolkit().createImage(f.getAbsolutePath());
			PixelGrabber pg = new PixelGrabber(i, 0, 0, -1, -1, true);
			pg.grabPixels();
			int width = pg.getWidth(), height = pg.getHeight();
			final int[] RGB_MASKS = { 0xFF0000, 0xFF00, 0xFF };
			final ColorModel RGB_OPAQUE = new DirectColorModel(32, RGB_MASKS[0], RGB_MASKS[1], RGB_MASKS[2]);
			DataBuffer buffer = new DataBufferInt((int[]) pg.getPixels(), pg.getWidth() * pg.getHeight());
			WritableRaster raster = Raster.createPackedRaster(buffer, width, height, width, RGB_MASKS, null);
			BufferedImage img = new BufferedImage(RGB_OPAQUE, raster, false, null);
			return img;
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		}
	}

	public static void resizeImage(File srcFile, int width,int height, File destFile) {
		try {
			Image i = ImageIO.read(srcFile);
			i = resizeImage(i, width, height);
			ImageIO.write((RenderedImage) i, "jpg", destFile);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public static Image resizeImage(Image srcImage, int width, int height) {
		try {

			BufferedImage buffImg = null;
			buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
			buffImg.getGraphics().drawImage(srcImage.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);

			return buffImg;
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}

}

package com.how2java.tmall.action;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.List;

import javax.imageio.ImageIO;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.apache.struts2.convention.annotation.Results;
import org.springframework.beans.factory.annotation.Autowired;

import com.how2java.tmall.pojo.Category;
import com.how2java.tmall.service.CategoryService;
import com.how2java.tmall.util.ImageUtil;
import com.how2java.tmall.util.Page;

@Namespace("/")
@ParentPackage("basicstruts")  
@Results(
		{
			/*分类管理*/
			@Result(name="listCategory", location="/admin/listCategory.jsp"),
			@Result(name="listCategoryPage", type = "redirect", location="/admin_category_list"),
		})
public class CategoryAction {
	@Autowired 
	CategoryService categoryService;

	List<Category> categorys;
	
	Category category;
	
	File img;

	Page page;
	
	@Action("admin_category_list")
	public String list() {
		
		if(page==null)
			page = new Page();
		int total = categoryService.total();
		page.setTotal(total);
		categorys = categoryService.listByPage(page);
		return "listCategory";
	}
	
	@Action("admin_category_add")
	public String add() {
		categoryService.save(category);
		File  imageFolder= new File(ServletActionContext.getServletContext().getRealPath("img/category"));
		File file = new File(imageFolder,category.getId()+".jpg");
		try {
			FileUtils.copyFile(img, file);
	        BufferedImage img = ImageUtil.change2jpg(file);
	        ImageIO.write(img, "jpg", file);			
		} catch (IOException e) {
			e.printStackTrace();
		}
		return "listCategoryPage";
	}	

	public List<Category> getCategorys() {
		return categorys;
	}

	public void setCategorys(List<Category> categorys) {
		this.categorys = categorys;
	}

	public Page getPage() {
		return page;
	}

	public void setPage(Page page) {
		this.page = page;
	}

	public Category getCategory() {
		return category;
	}

	public void setCategory(Category category) {
		this.category = category;
	}

	public File getImg() {
		return img;
	}

	public void setImg(File img) {
		this.img = img;
	}

}

<web-app>
	<filter>
		<filter-name>struts2</filter-name>
		<filter-class>
			org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
			
		</filter-class>
	</filter>
	
	<filter-mapping>
		<filter-name>struts2</filter-name>
		<dispatcher>FORWARD</dispatcher>
		<dispatcher>REQUEST</dispatcher>		
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	
	<filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>	

	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>
	<listener>
  		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
 	</listener>

</web-app>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
  <constant name="struts.i18n.encoding" value="UTF-8"></constant>
  <constant name="struts.objectFactory" value="spring"/>
  <package name="basicstruts" extends="struts-default">
        
 </package>
</struts>