添加功能（用户申请提现）

pages/personCenter/withdrawal/withdrawal.js

@@ -6,22 +6,26 @@ Page({
    * 页面的初始数据
    */
   data: {
-    withdrawalAccount: '',  // 这里保存提现账户信息
+    currentBalance: 0,  // 当前可提现余额
+    withdrawalAccount: '',  // 提现账户信息
+    withdrawnAmount: '',  // 用户输入的提现金额
   },
 
   // 获取当前账户信息
   getAccountInfo() {
     wx.request({
-      url: baseUrl + '/userAccount/queryById', // 替换为你的后端接口
+      url: baseUrl + '/withdrawalApply/query/condition', // 替换为你的后端接口
       method: 'POST',
       header: {
         Authorization: wx.getStorageSync('token'),
       },
       success: (res) => {
-        console.log('当前账户是---->',res.data.data);
+        console.log('当前账户是---->', res.data.data);
         if (res.data.code === 1) {
+          let result = res.data.data;
           this.setData({
-            withdrawalAccount: res.data.data.bankCardNumber,
+            currentBalance: result.currentBalance.toFixed(2),
+            withdrawalAccount: result.bankCardNumber
           });
         } else {
           wx.showToast({
@@ -39,11 +43,95 @@ Page({
     });
   },
 
+  // 输入框内容变化时更新数据
+  onInput(e) {
+    this.setData({
+      withdrawnAmount: e.detail.value,  // 获取用户输入的金额
+    });
+  },
+
+  // 点击“全部提现”，填充当前可提现余额到输入框
+  onWithdrawAll() {
+    this.setData({
+      withdrawnAmount: this.data.currentBalance,  // 将当前余额填入提现金额输入框
+    });
+  },
+
+  // 点击“立即提现”，发送请求
+  onSubmitWithdraw() {
+    const { withdrawnAmount, currentBalance } = this.data;
+
+      // 校验提现金额是否大于当前可提现余额
+      if (!withdrawnAmount) {
+        wx.showToast({
+          title: '请输入提现金额',
+          icon: 'none'
+        });
+        return;
+      }
+
+    // 校验提现金额是否大于当前可提现余额
+    if (parseFloat(withdrawnAmount) > parseFloat(currentBalance)) {
+      wx.showToast({
+        title: '提现金额不可大于余额',
+        icon: 'none'
+      });
+      return;
+    }
+
+    // 校验提现金额是否小于1元
+    if (parseFloat(withdrawnAmount) < 1) {
+      wx.showToast({
+        title: '最低提现金额为1元',
+        icon: 'none'
+      });
+      return;
+    }
+
+    // 发送提现请求
+    wx.request({
+      url: baseUrl + '/withdrawalApply/add',  // 后端提现请求路径
+      method: 'POST',
+      header: {
+        Authorization: wx.getStorageSync('token'),  // 请求头中加入token
+      },
+      data: {
+        withdrawnAmount: withdrawnAmount  // 请求体携带提现金额
+      },
+      success: (res) => {
+        if (res.data.code === 1) {
+          wx.showToast({
+            title: '提现成功，等待后台审核',
+            icon: 'none',
+          });
+
+          // 1秒后跳转到账单详情页面
+          setTimeout(() => {
+            wx.redirectTo({
+              url: '/pages/personCenter/billingDetails/billingDetails',
+            });
+          }, 1000);  // 延时1秒跳转
+        } else {
+          wx.showToast({
+            title: '提现失败，请重试',
+            icon: 'none'
+          });
+        }
+      },
+      fail: () => {
+        wx.showToast({
+          title: '请求失败，请稍后再试',
+          icon: 'none'
+        });
+      }
+    });
+  },
+
   /**
    * 生命周期函数--监听页面加载
    */
   onLoad(options) {
-    this.getAccountInfo()
+    this.getAccountInfo();  // 加载页面时获取账户信息
   },
 
   /**
@@ -89,4 +177,4 @@ Page({
    * 用户点击右上角分享
    */
   onShareAppMessage() {},
-});
+});