本文转自:http://blog.csdn.net/feter1992/article/details/77877659
前端: 微信开发者工具
后端:.Net
服务器:阿里云
这里介绍微信小程序如何实现上传图片到自己的服务器上
前端代码
- data: {
- productInfo: {}
- },
- //添加Banner
- bindChooiceProduct: function () {
- var that = this;
- wx.chooseImage({
- count: 3, //最多可以选择的图片总数
- sizeType: ['compressed'], // 可以指定是原图还是压缩图,默认二者都有
- sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机,默认二者都有
- success: function (res) {
- // 返回选定照片的本地文件路径列表,tempFilePath可以作为img标签的src属性显示图片
- var tempFilePaths = res.tempFilePaths;
- //启动上传等待中...
- wx.showToast({
- title: '正在上传...',
- icon: 'loading',
- mask: true,
- duration: 10000
- })
- var uploadImgCount = 0;
- for (var i = 0, h = tempFilePaths.length; i < h; i++) {
- wx.uploadFile({
- url: util.getClientSetting().domainName + '/home/uploadfilenew',
- filePath: tempFilePaths[i],
- name: 'uploadfile_ant',
- formData: {
- 'imgIndex': i
- },
- header: {
- "Content-Type": "multipart/form-data"
- },
- success: function (res) {
- uploadImgCount++;
- var data = JSON.parse(res.data);
- //服务器返回格式: { "Catalog": "testFolder", "FileName": "1.jpg", "Url": "https://test.com/1.jpg" }
- var productInfo = that.data.productInfo;
- if (productInfo.bannerInfo == null) {
- productInfo.bannerInfo = [];
- }
- productInfo.bannerInfo.push({
- "catalog": data.Catalog,
- "fileName": data.FileName,
- "url": data.Url
- });
- that.setData({
- productInfo: productInfo
- });
- //如果是最后一张,则隐藏等待中
- if (uploadImgCount == tempFilePaths.length) {
- wx.hideToast();
- }
- },
- fail: function (res) {
- wx.hideToast();
- wx.showModal({
- title: '错误提示',
- content: '上传图片失败',
- showCancel: false,
- success: function (res) { }
- })
- }
- });
- }
- }
- });
- }
data: {
productInfo: {}
},
//添加Banner
bindChooiceProduct: function () {
var that = this; wx.chooseImage({
count: 3, //最多可以选择的图片总数
sizeType: ['compressed'], // 可以指定是原图还是压缩图,默认二者都有
sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机,默认二者都有
success: function (res) {
// 返回选定照片的本地文件路径列表,tempFilePath可以作为img标签的src属性显示图片
var tempFilePaths = res.tempFilePaths;
//启动上传等待中...
wx.showToast({
title: '正在上传...',
icon: 'loading',
mask: true,
duration: 10000
})
var uploadImgCount = 0;
for (var i = 0, h = tempFilePaths.length; i < h; i++) {
wx.uploadFile({
url: util.getClientSetting().domainName + '/home/uploadfilenew',
filePath: tempFilePaths[i],
name: 'uploadfile_ant',
formData: {
'imgIndex': i
},
header: {
"Content-Type": "multipart/form-data"
},
success: function (res) {
uploadImgCount++;
var data = JSON.parse(res.data);
//服务器返回格式: { "Catalog": "testFolder", "FileName": "1.jpg", "Url": "https://test.com/1.jpg" }
var productInfo = that.data.productInfo;
if (productInfo.bannerInfo == null) {
productInfo.bannerInfo = [];
}
productInfo.bannerInfo.push({
"catalog": data.Catalog,
"fileName": data.FileName,
"url": data.Url
});
that.setData({
productInfo: productInfo
}); //如果是最后一张,则隐藏等待中
if (uploadImgCount == tempFilePaths.length) {
wx.hideToast();
}
},
fail: function (res) {
wx.hideToast();
wx.showModal({
title: '错误提示',
content: '上传图片失败',
showCancel: false,
success: function (res) { }
})
}
});
}
}
});
}
后端上传代码(将文件上传到服务器临时文件夹内)
- [HttpPost]
- public ContentResult UploadFileNew()
- {
- UploadFileDTO model = new UploadFileDTO();
- HttpPostedFileBase file = Request.Files["uploadfile_ant"];
- if (file != null)
- {
- //公司编号+上传日期文件主目录
- model.Catalog = DateTime.Now.ToString("yyyyMMdd");
- model.ImgIndex = Convert.ToInt32(Request.Form["imgIndex"]);
- //获取文件后缀
- string extensionName = System.IO.Path.GetExtension(file.FileName);
- //文件名
- model.FileName = System.Guid.NewGuid().ToString("N") + extensionName;
- //保存文件路径
- string filePathName = System.IO.Path.Combine(CommonHelper.GetConfigValue("ImageAbsoluteFolderTemp"), model.Catalog);
- if (!System.IO.Directory.Exists(filePathName))
- {
- System.IO.Directory.CreateDirectory(filePathName);
- }
- //相对路径
- string relativeUrl = CommonHelper.GetConfigValue("ImageRelativeFolderTemp");
- file.SaveAs(System.IO.Path.Combine(filePathName, model.FileName));
- //获取临时文件相对完整路径
- model.Url = System.IO.Path.Combine(relativeUrl, model.Catalog, model.FileName).Replace("\\", "/");
- }
- return Content(Newtonsoft.Json.JsonConvert.SerializeObject(model));
- }
[HttpPost]
public ContentResult UploadFileNew()
{
UploadFileDTO model = new UploadFileDTO();
HttpPostedFileBase file = Request.Files["uploadfile_ant"];
if (file != null)
{
//公司编号+上传日期文件主目录
model.Catalog = DateTime.Now.ToString("yyyyMMdd");
model.ImgIndex = Convert.ToInt32(Request.Form["imgIndex"]); //获取文件后缀
string extensionName = System.IO.Path.GetExtension(file.FileName); //文件名
model.FileName = System.Guid.NewGuid().ToString("N") + extensionName; //保存文件路径
string filePathName = System.IO.Path.Combine(CommonHelper.GetConfigValue("ImageAbsoluteFolderTemp"), model.Catalog);
if (!System.IO.Directory.Exists(filePathName))
{
System.IO.Directory.CreateDirectory(filePathName);
}
//相对路径
string relativeUrl = CommonHelper.GetConfigValue("ImageRelativeFolderTemp");
file.SaveAs(System.IO.Path.Combine(filePathName, model.FileName)); //获取临时文件相对完整路径
model.Url = System.IO.Path.Combine(relativeUrl, model.Catalog, model.FileName).Replace("\\", "/");
}
return Content(Newtonsoft.Json.JsonConvert.SerializeObject(model));
}
- /// <summary>
- /// 上传文件 返回数据模型
- /// </summary>
- public class UploadFileDTO
- {
- /// <summary>
- /// 目录名称
- /// </summary>
- public string Catalog { set; get; }
- /// <summary>
- /// 文件名称,包括扩展名
- /// </summary>
- public string FileName { set; get; }
- /// <summary>
- /// 浏览路径
- /// </summary>
- public string Url { set; get; }
- /// <summary>
- /// 上传的图片编号(提供给前端判断图片是否全部上传完)
- /// </summary>
- public int ImgIndex { get; set; }
- }
/// <summary>
/// 上传文件 返回数据模型
/// </summary>
public class UploadFileDTO
{
/// <summary>
/// 目录名称
/// </summary>
public string Catalog { set; get; }
/// <summary>
/// 文件名称,包括扩展名
/// </summary>
public string FileName { set; get; }
/// <summary>
/// 浏览路径
/// </summary>
public string Url { set; get; }
/// <summary>
/// 上传的图片编号(提供给前端判断图片是否全部上传完)
/// </summary>
public int ImgIndex { get; set; }
}
- #region 获取配置文件Key对应Value值
- /// <summary>
- /// 获取配置文件Key对应Value值
- /// </summary>
- /// <param name="key"></param>
- /// <returns></returns>
- public static string GetConfigValue(string key)
- {
- return ConfigurationManager.AppSettings[key].ToString();
- }
- #endregion
#region 获取配置文件Key对应Value值
/// <summary>
/// 获取配置文件Key对应Value值
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public static string GetConfigValue(string key)
{
return ConfigurationManager.AppSettings[key].ToString();
}
#endregion
设置配置文件上传文件对应的文件夹信息
- <appSettings>
- <!--图片临时文件夹 绝对路径-->
- <add key="ImageAbsoluteFolderTemp" value="D:\Images\temp" />
- <!--图片正式文件夹 绝对路径-->
- <add key="ImageAbsoluteFolderFinal" value="D:\Images\product" />
- <!--图片临时文件夹 相对路径-->
- <add key="ImageRelativeFolderTemp" value="http://192.168.1.79:9009/temp"/>
- <!--图片正式文件夹 相对路径-->
- <add key="ImageRelativeFolderFinal" value="http://192.168.1.79:9009/product"/>
- </appSettings>
<appSettings>
<!--图片临时文件夹 绝对路径-->
<add key="ImageAbsoluteFolderTemp" value="D:\Images\temp" />
<!--图片正式文件夹 绝对路径-->
<add key="ImageAbsoluteFolderFinal" value="D:\Images\product" /> <!--图片临时文件夹 相对路径-->
<add key="ImageRelativeFolderTemp" value="http://192.168.1.79:9009/temp"/>
<!--图片正式文件夹 相对路径-->
<add key="ImageRelativeFolderFinal" value="http://192.168.1.79:9009/product"/>
</appSettings>
PS:上传到服务器的临时文件夹内,当用户点击保存才把这些文件移动到正式目录下
欢迎加入我的微信小程序技术交流群