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uni-app中怎么提交form表单？下面本篇文章就来给大家分享下两种uni-app提交form表单的方式，希望对大家有所帮助！
uni-app提交form表单的两种方式方式1：form表单元素较少
比如用户登录，如下图
前端代码举例
此处省略了部分多余代码
<template><view style="padding:50rpx;"><view style="margin-top:60rpx;"><form @submit="submit"><view class="gui-border-b gui-form-item" style="margin-top:80rpx;"><view class="gui-form-body"><input type="number" class="gui-form-input" v-model="driverTel" name="driverTel" placeholder="手机号" placeholder-style="color:#CACED0"/></view></view><view class="gui-border-b gui-form-item" style="margin-top:30rpx;"><view class="gui-form-body"><input type="password" class="gui-form-input" v-if="isPwd" v-model="password" name="password" placeholder="密码" placeholder-style="color:#CACED0"/><input type="text" class="gui-form-input" v-if="!isPwd" :disabled="true" v-model="password" name="password" placeholder="密码" placeholder-style="color:#CACED0"/></view><text class="gui-form-icon gui-icons gui-text-center" @click="changePwdType" :style="{color:isPwd?'#999999':'#008AFF'}"></text></view><view style="margin-top:50rpx;"><button type="default" class="gui-button gui-bg-blue msgBtn" formType="submit" style="border-radius:50rpx;"><text class="gui-color-white gui-button-text-max">登录</text></button></view></form></view></view></template><script>uni.request({url: _self.server_host + "/app/driver/login/password",method:'POST',header:{'content-type' : "application/x-www-form-urlencoded"},data:{// 对于上面的form表单提交，我们可以直接在uni.request的data属性中直接提交就行了driverTel: _self.driverTel,password: _self.password},success: (res) => {// 服务器返回结果}})</script>登录后复制后端代码举例
/*** 这里可以以一个实体类来接收，实体类必须包含前端传参参数的对应字段*/@PostMapping("/password")public Result loginByPassword(LoginUserVO loginUserVO) {// 处理业务逻辑}/*** 也可以按照字段名来接收*/@PostMapping("/password")public Result loginByPassword(String username, String passsword) {// 处理业务逻辑}登录后复制方式1：form表单元素较多
上面的方法在form表单元素较多时处理起来就比较费事了，一般像新增用户、商品之类的form表单少则十几个，多则几十个。如下图： 如果按照上面的写法，不仅前端写起来费事不雅观，后台接受也要一个字段一个字段的接收也煞是费劲，这个时候我们可以定义一个对象formData，将数据保存到里面提交时直接提交JSON字符串到后端，后端接收到JSON字符串后转成JSON对象，然后再进行自己的业务逻辑处理
前端代码举例：
<!-- 表单元素核心区域 --><scroll-view :scroll-y="true" :show-scrollbar="false" :style="{height:mainHeight+'px'}"><!-- 第1步 --><view class="gui-padding" v-if="step == 1"><view class="gui-form-item gui-border-b"><text class="gui-form-label">所属客户</text><view class="gui-form-body"><picker mode="selector" :range="tenantList" :value="tenantIndex" @change="tenantChange($event,tenantList)" :range-key="'tenantName'"><view class="gui-flex gui-rows gui-nowrap gui-space-between gui-align-items-center"><text class="gui-text">{{tenantList[tenantIndex].tenantName}}</text><text class="gui-form-icon gui-icons gui-text-center gui-color-gray"></text></view></picker></view></view><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">姓名</text><view class="gui-form-body"><input type="text" class="gui-form-input" v-model="formData.driverName" placeholder="请输入姓名" /></view></view><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">手机号</text><view class="gui-form-body"><input type="text" class="gui-form-input" v-model="formData.driverTel" placeholder="请输入手机号" /></view></view><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">身份证号码</text><view class="gui-form-body"><input type="text" class="gui-form-input" v-model="formData.idNumber" placeholder="请输入身份证号码" /></view></view><view class="gui-margin-top"><text class="gui-form-label" style="width: 100%;">身份证照片(个人信息面)</text></view><view class="gui-idcard-items gui-img-in gui-flex gui-rows gui-justify-content-center"><view class="gui-idcard-items-image" @tap="selectIdPhotoPositive"><gui-image :src="formData.idPhotoPositive" :width="380"></gui-image></view></view><view class="gui-margin-top"><text class="gui-form-label" style="width: 100%;">身份证照片(国徽图案面)</text></view><view class="gui-idcard-items gui-img-in gui-flex gui-rows gui-justify-content-center"><view class="gui-idcard-items-image" @tap="selectIdPhotoReverse"><gui-image :src="formData.idPhotoReverse" :width="380"></gui-image></view></view><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">证件有效期</text><view class="gui-form-body"><picker class="gui-form-picker" mode="date" @change="idNumberValidUntilChange"><text class="gui-text">{{formData.idNumberValidUntil}}</text><text class="gui-icons icon-arrow-down" style="margin-left:5px;"></text></picker></view></view><view class="gui-form-item gui-border-b"><text class="gui-form-label">收款人</text><view class="gui-form-body"><picker mode="selector" :range="payeeList" :value="payeeIndex" @change="payeeChange($event,payeeList)" :range-key="'payeeName'"><view class="gui-flex gui-rows gui-nowrap gui-space-between gui-align-items-center"><text class="gui-text">{{payeeList[payeeIndex].payeeName}}</text><text class="gui-form-icon gui-icons gui-text-center gui-color-gray"></text></view></picker></view></view></view><!-- 第2步 --><view class="gui-padding" v-if="step == 2"><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">驾驶证编号</text><view class="gui-form-body"><input type="text" class="gui-form-input" v-model="formData.drivingLicenseNumber" placeholder="请输入驾驶证编号" /></view></view><view class="gui-margin-top"><text class="gui-form-label" style="width: 100%;">驾驶证(主页)</text></view><view class="gui-idcard-items gui-img-in gui-flex gui-rows gui-justify-content-center"><view class="gui-idcard-items-image" @tap="selectDrivingLicensePhoto"><gui-image :src="formData.drivingLicensePhoto" :width="380"></gui-image></view></view><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">有效期开始</text><view class="gui-form-body"><picker class="gui-form-picker" mode="date" @change="drivingLicenseValidityStartChange"><text class="gui-text">{{formData.drivingLicenseValidityStart}}</text><text class="gui-icons icon-arrow-down" style="margin-left:5px;"></text></picker></view></view><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">有效期结束</text><view class="gui-form-body"><picker class="gui-form-picker" mode="date" @change="drivingLicenseValidityEndChange"><text class="gui-text">{{formData.drivingLicenseValidityEnd}}</text><text class="gui-icons icon-arrow-down" style="margin-left:5px;"></text></picker></view></view><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">发证机关</text><view class="gui-form-body"><input type="text" class="gui-form-input" v-model="formData.drivingLicenseIssuingOrg" placeholder="请输入驾驶证发证机关" /></view></view><view class="gui-form-item gui-border-b"><text class="gui-form-label">准驾车型</text><view class="gui-form-body"><picker mode="selector" :range="vehicleTypeList" :value="vehicleTypeIndex" @change="vehicleTypeChange($event,vehicleTypeList)" :range-key="'codeSetName'"><view class="gui-flex gui-rows gui-nowrap gui-space-between gui-align-items-center"><text class="gui-text">{{vehicleTypeList[vehicleTypeIndex].codeSetName}}</text><text class="gui-form-icon gui-icons gui-text-center gui-color-gray"></text></view></picker></view></view><view class="gui-form-item gui-border-b"><text class="gui-form-label">关联车辆</text><view class="gui-form-body"><picker mode="selector" :range="vehicleList" :value="vehicleIndex" @change="vehicleChange($event,vehicleList)" :range-key="'carNumber'"><view class="gui-flex gui-rows gui-nowrap gui-space-between gui-align-items-center"><text class="gui-text">{{vehicleList[vehicleIndex].carNumber}}</text><text class="gui-form-icon gui-icons gui-text-center gui-color-gray"></text></view></picker></view></view></view><!-- 第3步 --><view class="gui-padding" v-if="step == 3"><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">资格证号码</text><view class="gui-form-body"><input type="text" class="gui-form-input" v-model="formData.roadTransportQualificationCertificateNumber" placeholder="请输入从业资格证编号" /></view></view><view class="gui-margin-top"><text class="gui-form-label" style="width: 100%;">从业资格证</text></view><view class="gui-idcard-items gui-img-in gui-flex gui-rows gui-justify-content-center"><view class="gui-idcard-items-image" @tap="selectRoadTransportQualificationCertificatePhoto"><gui-image :src="formData.roadTransportQualificationCertificatePhoto" :width="380"></gui-image></view></view><view class="gui-form-item gui-margin-top gui-border-b"><text class="gui-form-label">证件有效期</text><view class="gui-form-body"><picker class="gui-form-picker" mode="date" @change="roadTransportQualificationCertificateValidUntilChange"><text class="gui-text">{{formData.roadTransportQualificationCertificateValidUntil}}</text><text class="gui-icons icon-arrow-down" style="margin-left:5px;"></text></picker></view></view></view></scroll-view><script>export default {data() {return {// 表单数据记录formData: {// 第一步tenantId: '',// 所属客户payeeId: '',// 收款人driverName: '',// 司机姓名driverTel: '',// 司机电话idNumber: '',// 身份证号码idNumberValidUntil:'请选择证件有效期',// 身份证有效期idPhotoPositive: 'https://www.zzwlnet.com/files/images/upload_identity_card_front.png',// 身份证正面（个人信息面）idPhotoReverse: 'https://www.zzwlnet.com/files/images/upload_identity_card_contrary.png',// 身份证反面（国徽面）// 第二步drivingLicenseNumber: '',// 驾驶证编号drivingLicensePhoto: 'https://www.zzwlnet.com/files/images/upload_driving_license.png',// 驾驶证图片drivingLicenseValidityStart: '请选择证件有效期开始时间', // 驾驶证有效期开始drivingLicenseValidityEnd: '请选择证件有效期结束时间',// 驾驶证有效期结束drivingLicenseIssuingOrg: '',// 驾驶证发证机关quasiDrivingType: '',// 准驾车型vehicleId: '',// 关联车辆// 第三步roadTransportQualificationCertificateNumber: '',// 从业资格证号roadTransportQualificationCertificatePhoto: 'https://www.zzwlnet.com/files/images/upload_road_transport_qualification_certificate.png',// 从业资格证图片roadTransportQualificationCertificateValidUntil: '请选择证件有效期',// 从业资格证有效期},}},methods: {submit: function() {uni.request({url: _self.server_host + '/api',method: 'POST',header: {'content-type' : "application/x-www-form-urlencoded"},data: {// 传参方式一：以JSON字符串的形式提交form表单数据formData: JSON.stringify(_self.formData),// 传参方式二：将form表单数据以对象形式传递// formData: _self.formData,},success: res => {// 服务器返回数据，后续业务逻辑处理},fail: () => {uni.showToast({ title: "服务器响应失败，请稍后再试！", icon : "none"});},complete: () => {}});}}}</script>登录后复制后端java代码举例
// 针对传参方式一：后台以String的方式接收public Result add(String formData){// 将JSON字符串转换成JSONObjectJSONObject jsonObject= JSONObject.parseObject(formData);// 继续后续业务逻辑处理return Results.success();}// 针对传参方式二：后台以Object的方式接收public Result add(Object driverObj){// 继续后续业务逻辑处理return Results.success();}登录后复制推荐：《uniapp教程》
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