浅析uni-app中怎么提交form表单?(代码解析)

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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!


浅析uni-app中怎么提交form表单?(代码解析)


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


浅析uni-app中怎么提交form表单?(代码解析)

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'}">&#xe609;</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>


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
}


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:


浅析uni-app中怎么提交form表单?(代码解析)


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">&#xe603;</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">&#xe603;</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">&#xe603;</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">&#xe603;</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>


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JSONObject
    JSONObject 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();
}



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