WeChat applet implements image upload function
Nov 21, 2023 am 09:08 AM
WeChat applet implements picture upload function
With the development of mobile Internet, WeChat applet has become an indispensable part of people's lives. WeChat mini programs not only provide a wealth of application scenarios, but also support developer-defined functions, including image upload functions. This article will introduce how to implement the image upload function in the WeChat applet and provide specific code examples.
1. Preliminary preparations
Before starting to write code, we need to download and install the WeChat developer tools and register as a WeChat developer. At the same time, you also need to understand the relevant content of WeChat applet development and API documentation.
2. Writing code
The image upload function in the WeChat applet is mainly implemented through the two APIs wx.chooseImage and wx.uploadFile . Below is a specific code example.
- Add the code for buttons and image display areas in the .wxml file:
<button bindtap="chooseImage">選擇圖片</button>
<image src="{{imagePath}}" mode="aspectFill"></image>- Write the functions for selecting images and uploading images in the .js file:
Page({
data: {
imagePath: ''
},
// 選擇圖片
chooseImage: function () {
wx.chooseImage({
count: 1, // 可選擇圖片的數(shù)量
sizeType: ['original', 'compressed'], // 可選擇圖片的類型：原圖或壓縮圖
sourceType: ['album', 'camera'], // 可選擇圖片的來(lái)源：相冊(cè)或相機(jī)
success: (res) => {
const tempFilePaths = res.tempFilePaths
this.setData({
imagePath: tempFilePaths[0]
})
// 調(diào)用上傳圖片函數(shù)
this.uploadImage(tempFilePaths[0])
}
})
},
// 上傳圖片
uploadImage: function (imagePath) {
wx.uploadFile({
url: 'https://your-upload-url', // 圖片上傳接口的URL
filePath: imagePath,
name: 'image', // 上傳圖片時(shí)的名稱
formData: {
'user': 'test' // 其他的參數(shù)
},
success: (res) => {
// 圖片上傳成功后的處理邏輯
console.log(res)
},
fail: (error) => {
// 圖片上傳失敗后的處理邏輯
console.log(error)
}
})
}
})3. Code analysis
- When selecting pictures, we use
wx.chooseImageAPI, through which users can select from the photo album Or select a picture in the camera and save the selected picture path intempFilePaths. - After selecting the image, we save the selected image path in
imagePathand upload the image by calling thethis.uploadImagefunction. - When uploading images, we use the
wx.uploadFileAPI, through which the selected images can be uploaded to the specified interface URL.
4. Summary
This article introduces how to implement the image upload function through the WeChat applet and provides specific code examples. By using the two APIs wx.chooseImage and wx.uploadFile, we can easily implement image selection and upload operations. Developers can further improve this function according to their own needs, such as adding progress bars, error handling, etc. I believe that by using the code examples in this article as a basis, developers can easily implement the image upload function in WeChat mini programs.
The above is the detailed content of WeChat applet implements image upload function. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Xianyu WeChat mini program officially launched
Feb 10, 2024 pm 10:39 PM
Xianyu's official WeChat mini program has quietly been launched. In the mini program, you can post private messages to communicate with buyers/sellers, view personal information and orders, search for items, etc. If you are curious about what the Xianyu WeChat mini program is called, take a look now. What is the name of the Xianyu WeChat applet? Answer: Xianyu, idle transactions, second-hand sales, valuations and recycling. 1. In the mini program, you can post idle messages, communicate with buyers/sellers via private messages, view personal information and orders, search for specified items, etc.; 2. On the mini program page, there are homepage, nearby, post idle, messages, and mine. 5 functions; 3. If you want to use it, you must activate WeChat payment before you can purchase it;
Implement image filter effects in WeChat mini programs
Nov 21, 2023 pm 06:22 PM
Implementing picture filter effects in WeChat mini programs With the popularity of social media applications, people are increasingly fond of applying filter effects to photos to enhance the artistic effect and attractiveness of the photos. Picture filter effects can also be implemented in WeChat mini programs, providing users with more interesting and creative photo editing functions. This article will introduce how to implement image filter effects in WeChat mini programs and provide specific code examples. First, we need to use the canvas component in the WeChat applet to load and edit images. The canvas component can be used on the page
Implement the drop-down menu effect in WeChat applet
Nov 21, 2023 pm 03:03 PM
To implement the drop-down menu effect in WeChat Mini Programs, specific code examples are required. With the popularity of mobile Internet, WeChat Mini Programs have become an important part of Internet development, and more and more people have begun to pay attention to and use WeChat Mini Programs. The development of WeChat mini programs is simpler and faster than traditional APP development, but it also requires mastering certain development skills. In the development of WeChat mini programs, drop-down menus are a common UI component, achieving a better user experience. This article will introduce in detail how to implement the drop-down menu effect in the WeChat applet and provide practical
How to use Laravel to implement user rights management functions
Nov 02, 2023 pm 02:09 PM
How to use Laravel to implement user rights management functions With the development of web applications, user rights management has become more and more important in many projects. Laravel, as a popular PHP framework, provides many powerful tools and functions for handling user rights management. This article will introduce how to use Laravel to implement user rights management functions and provide specific code examples. Database design First, we need to design a database model to store the relationship between users, roles and permissions. To make things easier we will make
What is the name of Xianyu WeChat applet?
Feb 27, 2024 pm 01:11 PM
The official WeChat mini program of Xianyu has been quietly launched. It provides users with a convenient platform that allows you to easily publish and trade idle items. In the mini program, you can communicate with buyers or sellers via private messages, view personal information and orders, and search for the items you want. So what exactly is Xianyu called in the WeChat mini program? This tutorial guide will introduce it to you in detail. Users who want to know, please follow this article and continue reading! What is the name of the Xianyu WeChat applet? Answer: Xianyu, idle transactions, second-hand sales, valuations and recycling. 1. In the mini program, you can post idle messages, communicate with buyers/sellers via private messages, view personal information and orders, search for specified items, etc.; 2. On the mini program page, there are homepage, nearby, post idle, messages, and mine. 5 functions; 3.
WeChat applet implements image upload function
Nov 21, 2023 am 09:08 AM
WeChat applet implements picture upload function With the development of mobile Internet, WeChat applet has become an indispensable part of people's lives. WeChat mini programs not only provide a wealth of application scenarios, but also support developer-defined functions, including image upload functions. This article will introduce how to implement the image upload function in the WeChat applet and provide specific code examples. 1. Preparatory work Before starting to write code, we need to download and install the WeChat developer tools and register as a WeChat developer. At the same time, you also need to understand WeChat
Use WeChat applet to achieve carousel switching effect
Nov 21, 2023 pm 05:59 PM
Use the WeChat applet to achieve the carousel switching effect. The WeChat applet is a lightweight application that is simple and efficient to develop and use. In WeChat mini programs, it is a common requirement to achieve carousel switching effects. This article will introduce how to use the WeChat applet to achieve the carousel switching effect, and give specific code examples. First, add a carousel component to the page file of the WeChat applet. For example, you can use the <swiper> tag to achieve the switching effect of the carousel. In this component, you can pass b
Implement image rotation effect in WeChat applet
Nov 21, 2023 am 08:26 AM
To implement the picture rotation effect in WeChat Mini Program, specific code examples are required. WeChat Mini Program is a lightweight application that provides users with rich functions and a good user experience. In mini programs, developers can use various components and APIs to achieve various effects. Among them, the picture rotation effect is a common animation effect that can add interest and visual effects to the mini program. To achieve image rotation effects in WeChat mini programs, you need to use the animation API provided by the mini program. The following is a specific code example that shows how to
