大家好，又见面了，我是你们的朋友全栈君。

分析

顶部改为”支付”
上方为地址,跳转至地址管理,可修改
下方为订单信息
最下方显示所需支付金额以及支付按钮,点击支付则支付成功跳转订单页
如果不支付则可以在我的订单内容查看该订单并且继续支付

代码实现

改变顶部导航内容"navigationBarTitleText": "支付"
界面:

<navigator url="/pages/addressList/addressList" class="user_info_row" wx:if="{ 
    {statu!='待发货'}}">
  <view class="user_info" wx:for="{ 
    {addressList}}" wx:if="{ 
    {item.statu==true}}" wx:key="index">
    <view>{
  
  {item.name}}</view>
    <view>{
  
  {item.city}}{
  
  {item.address}}</view>
  </view>
  <view class="user_phone">{
  
  {item.tel}}</view>
</navigator>

<view class="user_info_row" wx:if="{ 
    {statu=='待发货'}}">
  <view class="user_info" wx:for="{ 
    {address}}" wx:key="index">
    <view>{
  
  {item.name}}</view>
    <view>{
  
  {item.city}}{
  
  {item.address}}</view>
  </view>
  <view class="user_phone">{
  
  {item.tel}}</view>
</view>

<!--购物车的内容-->
<view class="cart_content">
  <view class="cart_title">订单</view>
  <view class="cart_main">
    <!--当cart数组不为0显示 -->

    <view class="cart_item" wx:for="{ 
    {payList}}" wx:key="index">

      <!--商品图片-->
      <navigator class="cart_img_wrap">
        <image src="{ 
    {item.goods.goods_small_logo}}" mode="widthFix" />
      </navigator>
      <!--商品信息-->
      <view class="cart_info_wrap">
        <view class="goods_name">
          {
  
  {item.goods.goods_name}}
        </view>
        <view class="goods_price_wrap">
          <view class="goods_price">￥{
  
  {item.goods.goods_price}}</view>
          <view class="cart_num_tool">
            <view class="goods_num">X {
  
  {item.shu}}</view>
          </view>
        </view>
      </view>
    </view>
  </view>
</view>

<!--底部工具栏-->
<view class="footer_tool" wx:if="{ 
    {statu!='待发货'}}">

  <!--总价格-->
  <view class="total_price_wrap">
    <view class="total_price">
      合计
      <text class="total_price_text">￥{
  
  {sum}}</text>
    </view>
    <view>
      包含运费
    </view>

  </view>
  <!--结算-->
  <view class="order_pay_wrap" bindtap="payshop">支付({
  
  {num}})</view>
</view>

js

• payList：支付的信息,即支付的商品列表
• addressList:所有的收货地址
• sum:总金额
• num:数量
• orderid：订单id
• statu:订单状态
• address:所选择的收货地址

函数:

• onLoad(options)页面加载执行,主要是提供订单信息
• onshow()页面显示时执行,主要是进行判断该订单的状态并且进行赋值
• payshop():支付函数

// pages/pay/pay.js
Page({ 
   

    /** * 页面的初始数据 */
    data: { 
   
        payList:[],
        addressList:[],
        sum:0,
        num:0,
        orderid:0,
        statu:'待付款',
        address:[]
    },

    /** * 生命周期函数--监听页面加载 */
    onLoad: function (options) { 
   
        let order1=wx.getStorageSync('orderList')||[];
        var newpaylist=[];
        console.log(options.orderid);
        let sum=0;
        let num=0;
        let orid=0;
        let zt='待付款';
        if(options.orderid!=undefined){ 
   
            newpaylist=order1.filter((item)=>{ 
   
                return item.orderid==options.orderid;
            })
            sum=newpaylist[0].goods[0].sum;
            num=newpaylist[0].goods[0].num;
            orid=options.orderid;
            zt=newpaylist[0].statu;
            this.setData({ 
   
                payList:newpaylist[0].goods
            })
        }else{ 
   
            newpaylist=wx.getStorageSync('payList')||[];
            sum=newpaylist[0].sum;
            num=newpaylist[0].num;
            orid=newpaylist[0].orderid;
            this.setData({ 
   
                payList:newpaylist
            })
            
        }
        
        console.log(orid);
        this.setData({ 
   
            sum:sum,
            num:num,
            orderid:orid,
            statu:zt
        })
        console.log(this.data.payList);
        var order=wx.getStorageSync('orderList')||[];
        if(order.length==0){ 
   
            let ord=[];
            order={ 
   
                goods:this.data.payList,
                statu:'待付款',
                orderid:this.data.orderid
            };
            console.log(order);
            ord.push(order)
            wx.setStorageSync('orderList',ord)
        }else{ 
   
            
            let flag=order.findIndex((item)=>{ 
   
                return item.orderid==this.data.payList[0].orderid;
            })
            if(flag==-1){ 
   
                let ord={ 
   
                    goods:this.data.payList,
                    statu:'待付款',
                    orderid:this.data.orderid
                }
                order.push(ord)
                wx.setStorageSync('orderList',order)
            }else{ 
   
                console.log('已存在该订单');
            }
        }
    },

    /** * 生命周期函数--监听页面初次渲染完成 */
    onReady: function () { 
   

    },

    /** * 生命周期函数--监听页面显示 */
    onShow: function () { 
   
        let addressList=wx.getStorageSync('address')||[];
        this.setData({ 
   
            addressList:addressList
        })
        let address=wx.getStorageSync('orderList')||[];
        console.log(this.data.orderid);
        let index=address.findIndex((item)=>{ 
   
            return item.orderid==this.data.orderid;
        })
        this.setData({ 
   
            address: address[index]
        })
    },
    //支付
    payshop(){ 
   
        let order=wx.getStorageSync('orderList')||[];
        let addressList=wx.getStorageSync('address')||[];
        let flag=order.findIndex((item)=>{ 
   
            return item.orderid==this.data.payList[0].orderid;
        })
        var address=addressList[0];
        for(let i=0;i<addressList.length;i++){ 
   
            if(addressList[i].statu==true){ 
   
                console.log(addressList);
                address=addressList[i];
            }
        }
        var sz=[];
        
        wx.showModal({ 
   
            title: '提示',
            content: '确认支付?',
            success (res) { 
   
              if (res.confirm) { 
   
                if(address.address==undefined){ 
   
                    for(let j=0;j<order.length;j++){ 
   
                        let new1={ 
   
                        goods:order[j].goods,
                        orderid:order[j].orderid,
                        statu:'待发货',
                        address:address
                        }
                        sz.push(new1)
                    }
                }else{ 
   
                    order[flag].address=address;
                    order[flag].statu='待发货'
                    console.log(order[flag]);
                    sz=order;
                }
                // sz[flag].statu='待发货';
                wx.setStorageSync('orderList', sz);//更新状态
                wx.showToast({ 
   
                    title: '正在支付',
                    icon:"loading",
                    duration: 800//持续的时间
                })
                wx.showToast({ 
   
                    title: '支付成功',
                    icon:"success",
                    duration: 800//持续的时间
                })
                wx.redirectTo({ 
   
                  url: '/pages/order/order',
                })
              } else if (res.cancel) { 
   
                wx.showToast({ 
   
                    title: '支付失败',
                    icon:"error",
                    duration: 800//持续的时间
                })
              }
            }
          })
          
    }
})

css样式

page { 
   
    padding-bottom: 90rpx;
  }
  .cart_content .cart_title { 
   
    padding: 20rpx;
    color: var(--themeColor);
    font-size: 36rpx;
    border-top: 1px solid currentColor;
    border-bottom: 1px solid currentColor;
  }
  .cart_content .cart_main .cart_item { 
   
    display: flex;
    padding: 10rpx;
    border-bottom: 1px solid #ccc;
  }
  .cart_content .cart_main .cart_item .cart_img_wrap { 
   
    flex: 2;
    display: flex;
    justify-content: center;
    align-items: center;
   
  }
  .cart_content .cart_main .cart_item .cart_img_wrap image{ 
   
    width: 80%;
  }
  .cart_content .cart_main .cart_item .cart_info_wrap { 
   
    flex: 4;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
  }
  .cart_content .cart_main .cart_item .cart_info_wrap .goods_name { 
   
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    color: #666;
  }
  .cart_content .cart_main .cart_item .cart_info_wrap .goods_price_wrap { 
   
    display: flex;
    justify-content: space-between;
  }
  .cart_content .cart_main .cart_item .cart_info_wrap .goods_price_wrap .goods_price { 
   
    color: var(--themeColor);
    font-size: 34rpx;
  }
  .cart_content .cart_main .cart_item .cart_info_wrap .goods_price_wrap .cart_num_tool { 
   
    display: flex;
  }
  .cart_content .cart_main .cart_item .cart_info_wrap .goods_price_wrap .cart_num_tool .goods_num { 
   
    width: 50rpx;
    height: 50rpx;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .footer_tool { 
   
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 90rpx;
    background-color: #fff;
    display: flex;
    border-top: 1px solid #ccc;
  }
  .footer_tool .total_price_wrap { 
   
    flex: 4;
    padding-left: 15rpx;
  }
  .footer_tool .total_price_wrap .total_price .total_price_text { 
   
    color: var(--themeColor);
    font-size: 34rpx;
    font-weight: 600;
  }
  .footer_tool .order_pay_wrap { 
   
    flex: 3;
    background-color: var(--themeColor);
    font-size: 32rpx;
    font-weight: 600;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  

效果图展示

订单生成

点击支付时:

点击确认即可支付成功，取消则支付失败,
后续可在订单列表查看,这里还没有做,后续做~
完成~