基于Android(PHP)的校园闲置物品交易平台的设计与实现（二手交易平台）

本科毕业设计
校园闲置物品交易平台的设计与实现（二手交易平台）
包含论文，APP及网站系统三个内容。
首先是论文的部分：


首先是APP的展示
代码：

public class CommentInfo implements Parcelable {
    private int cId;// 商品编号
    private String cContent;// 评论内容
    private int uId;// 谁评论的
    private int gId;// 对哪条商品的评论
    private long cTime;// 评论的时间
    private String uNickName;
    protected CommentInfo(Parcel in) {
        cId = in.readInt();
        cContent = in.readString();
        uId = in.readInt();
        gId = in.readInt();
        cTime = in.readLong();
        uNickName = in.readString();
    }
    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeInt(cId);
        dest.writeString(cContent);
        dest.writeInt(uId);
        dest.writeInt(gId);
        dest.writeLong(cTime);
        dest.writeString(uNickName);
    }
    @Override
    public int describeContents() {
        return 0;
    }
    public static final Creator CREATOR = new Creator() {
        @Override
        public CommentInfo createFromParcel(Parcel in) {
            return new CommentInfo(in);
        }
        @Override
        public CommentInfo[] newArray(int size) {
            return new CommentInfo[size];
        }
    };
    public String getuNickName() {
        return uNickName;
    }
    public void setuNickName(String uNickName) {
        this.uNickName = uNickName;
    }
    public int getcId() {
        return cId;
    }
    public void setcId(int cId) {
        this.cId = cId;
    }
    public String getcContent() {
        return cContent;
    }
    public void setcContent(String cContent) {
        this.cContent = cContent;
    }
    public int getuId() {
        return uId;
    }
    public void setuId(int uId) {
        this.uId = uId;
    }
    public int getgId() {
        return gId;
    }
    public void setgId(int gId) {
        this.gId = gId;
    }
    public long getcTime() {
        return cTime;
    }
    public void setcTime(long cTime) {
        this.cTime = cTime;
    }
    @Override
    public String toString() {
        return "CommentInfo [cId=" + cId + ", cContent=" + cContent + ", uId="
                + uId + ", gId=" + gId + ", cTime=" + cTime + ", uNickName="
                + uNickName + "]";
    }
    public CommentInfo() {
        super();
        // TODO Auto-generated constructor stub
    }
    public CommentInfo(int cId, String cContent, int uId, int gId, long cTime) {
        super();
        this.cId = cId;
        this.cContent = cContent;
        this.uId = uId;
        this.gId = gId;
        this.cTime = cTime;
    }
}

代码：

    private void updateData() {
        getGoodsDetail();
    }
    
    private void setAnimation() {
        animation = new RotateAnimation(0, 360f,
                RotateAnimation.RELATIVE_TO_SELF, 0.5f, RotateAnimation.RELATIVE_TO_SELF, 0.5f);
        animation.setDuration(1000);
        animation.setRepeatCount(40);
    }
    
    private void showComment() {
        ll_comment.removeAllViews();
        if (commentList.size() == 0) {
            TextView tv_show = new TextView(this);
            tv_show.setText("暂无评论,快来成为第一个评论的人吧");
            ll_comment.addView(tv_show);
        } else {
            for (int i = 0; i < commentList.size(); i++) {
                View view = View.inflate(this, R.layout.listview_item_detailinfo_comment, null);
                TextView tv_time = (TextView) view.findViewById(R.id.tv_comment_time);
                CommentInfo info = commentList.get(i);
                try {
                    tv_time.setText(DateUtils.getTimeAfterFORMat(info.getcTime()));
                } catch (ParseException e) {
                    e.printStackTrace();
                    ToastUtils.showInfo(this, "发布时间解析出错,请重试");
                }
                TextView tv_nickName = (TextView) view.findViewById(R.id.tv_comment_nickname);
                tv_nickName.setText(info.getuNickName());
                TextView tv_content = (TextView) view.findViewById(R.id.tv_comment_content);
                tv_content.setText("    " + info.getcContent());
                if (info.getcContent().contains("【出价】￥")) {
                    tv_content.setTextColor(Color.RED);
                }
                ll_comment.addView(view);
            }
        }
    }
    
    private void showGoodsImgs() {
        ll_container_imgs.removeAllViews();
        List urls = goods.getgImgUrls();
        if (urls.size() > 0) {
            for (int i = 0; i < urls.size(); i++) {
                final ImageView iv = new ImageView(this);
                iv.setTag(i);
//                iv.setImageResource(goods_imgs[i]);
                new BitmapUtils(this).display(iv, urls.get(i));
                iv.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        int key = Integer.parseInt(iv.getTag().toString());
                        previewImg(key);
                    }
                });
                WindowManager wManager = getWindowManager();
                Display display = wManager.getDefaultDisplay();
                int height = display.getHeight();
                int width = display.getWidth();
                LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(width / 2, height / 4);
                lp.setMargins(2, 2, 2, 2);
                iv.setLayoutParams(lp);
                iv.setScaleType(ImageView.ScaleType.FIT_XY);
                ll_container_imgs.addView(iv);
            }
        }
    }

实现效果：

网站系统的展示：
前台：




v
后台展示：

代码：

$(function () {
    //加载弹出层
    layui.use(['form','element'],
    function() {
        layer = layui.layer;
        element = layui.element;
    });
    //触发事件
  var tab = {
        tabAdd: function(title,url,id){
          //新增一个Tab项
          element.tabAdd('xbs_tab', {
            title: title 
            ,content: ''
            ,id: id
          })
        }
        ,tabDelete: function(othis){
          //删除指定Tab项
          element.tabDelete('xbs_tab', '44'); //删除：“商品管理”
          othis.addClass('layui-btn-disabled');
        }
        ,tabChange: function(id){
          //切换到指定Tab项
          element.tabChange('xbs_tab', id); //切换到：用户管理
        }
      };
    tableCheck = {
        init:function  () {
            $(".layui-form-checkbox").click(function(event) {
                if($(this).hasClass('layui-form-checked')){
                    $(this).removeClass('layui-form-checked');
                    if($(this).hasClass('header')){
                        $(".layui-form-checkbox").removeClass('layui-form-checked');
                    }
                }else{
                    $(this).addClass('layui-form-checked');
                    if($(this).hasClass('header')){
                        $(".layui-form-checkbox").addClass('layui-form-checked');
                    }
                }
            });
        },
        getData:function  () {
            var obj = $(".layui-form-checked").not('.header');
            var arr=[];
            obj.each(function(index, el) {
                arr.push(obj.eq(index).attr('data-id'));
            });
            return arr;
        }
    }
    //开启表格多选
    tableCheck.init();
    $('.container .left_open i').click(function(event) {
        if($('.left-nav').CSS('left')=='0px'){
            $('.left-nav').animate({left: '-221px'}, 100);
            $('.page-content').animate({left: '0px'}, 100);
            $('.page-content-bg').hide();
        }else{
            $('.left-nav').animate({left: '0px'}, 100);
            $('.page-content').animate({left: '221px'}, 100);
            if($(window).width()<768){
                $('.page-content-bg').show();
            }
        }
    });
    $('.page-content-bg').click(function(event) {
        $('.left-nav').animate({left: '-221px'}, 100);
        $('.page-content').animate({left: '0px'}, 100);
        $(this).hide();
    });
    $('.layui-tab-close').click(function(event) {
        $('.layui-tab-title li').eq(0).find('i').remove();
    });
    //左侧菜单效果
    // $('#content').bind("click",function(event){
    $('.left-nav #nav li').click(function (event) {
        if($(this).children('.sub-menu').length){
            if($(this).hasClass('open')){
                $(this).removeClass('open');
                $(this).find('.nav_right').html('');
                $(this).children('.sub-menu').stop().slideUp();
                $(this).siblings().children('.sub-menu').slideUp();
            }else{
                $(this).addClass('open');
                $(this).children('a').find('.nav_right').html('');
                $(this).children('.sub-menu').stop().slideDown();
                $(this).siblings().children('.sub-menu').stop().slideUp();
                $(this).siblings().find('.nav_right').html('');
                $(this).siblings().removeClass('open');
            }
        }else{
            var url = $(this).children('a').attr('_href');
            var title = $(this).find('cite').html();
            var index  = $('.left-nav #nav li').index($(this));
            for (var i = 0; i <$('.x-iframe').length; i++) {
                if($('.x-iframe').eq(i).attr('tab-id')==index+1){
                    tab.tabChange(index+1);
                    event.stopPropagation();
                    return;
                }
            };
            tab.tabAdd(title,url,index+1);
            tab.tabChange(index+1);
        }
        event.stopPropagation();
    })
})

实现效果：