RDX*_*RDX 5 javascript forms http-post image-uploading express parse-platform
我正在使用Cloud Code和Express,托管在Parse上传图像.
这是Parse日志中的错误:
I2015-01-03T13:35:55.199Z] TypeError: Cannot read property 'thumbnail' of undefined
at app.js:40:25
at callbacks (express_router.js:161:37)
at param (express_router.js:135:11)
at pass (express_router.js:142:5)
at Router._dispatch (express_router.js:170:5)
at Object.router (express_router.js:33:10)
at next (connect_proto.js:240:15)
at Object.expressInit [as handle] (express_middleware.js:31:5)
at next (connect_proto.js:240:15)
at Object.query [as handle] (connect_query.js:44:5)
似乎Express JS/Parse无法理解req.files.XXX.在以下行的app.js中出现错误:console.error(req.files.thumbnail.size);
此外,req.files打印以下错误:未提供消息
这是recipecontent.ejs代码:
<!DOCTYPE html>
<html>
<form method="post" enctype="multipart/form-data" action="/saverecipecontent">
Enter Recipe Image 1:
<input type="file" name="thumbnail" id="thumbnail">
<input type="submit">
</form>
</html>这是app.js代码:
// These two lines are required to initialize Express in Cloud Code.
var express = require('express');
var app = express();
// Global app configuration section
app.set('views', 'cloud/views'); // Specify the folder to find templates
app.set('view engine', 'ejs'); // Set the template engine
app.use(express.bodyParser()); // Middleware for reading request body
app.get('/recipecontent', function(req, res) {
res.render('recipecontent', {
recipe_name: 'e.g. Rice Cake'
});
});
app.post('/saverecipecontent', function(req, res) {
console.error(req.files.thumbnail.size);
console.error(req.files.thumbnail.path);
console.error(req.files.thumbnail.name);
console.error(req.files.thumbnail.type);
Parse.Cloud.run('saveRecipeImage', req.body, {
success: function(result) {
// result is 'Hello world!'
},
error: function(error) {
}
});
});
// Attach the Express app to Cloud Code.
app.listen();最后这里是main.js代码:
require('cloud/app.js');
Parse.Cloud.define("saveRecipeImage", function(request, response) {
var recipeContent = Parse.Object.extend("recipe_content");
var recipeContentObj = new recipeContent();
console.error(request.params);
var file = request.params.thumbnail;
var name = "photo.jpg";
var parseFile = new Parse.File(name, file);
parseFile.save().then(function(parseFile) {
// The file has been saved to Parse.
var url = parseFile.url();
recipeContentObj.set("recipe_imgurl1", url);
return recipeContentObj.save();
}, function(error) {
// The file either could not be read, or could not be saved to Parse.
});
});请帮忙!
我在 Parse 中提出了这个错误，这是更新：
我们支持express.js的中间件不支持文件上传。
您可以做的是将文件内容作为 base64 发送到您的端点，并根据该数据创建 Parse.File 对象。
以下是更新后的代码，利用文件内容作为端点的 base64 并创建 Parse.File 对象：
这是layout.ejs代码
< html >
< head >
< script src = "//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js" > < /script>
<script src="/ / cdnjs.cloudflare.com / ajax / libs / underscore.js / 1.4.4 / underscore - min.js "></script>
<!-- <% if (locals.title) { %> -->
<!-- <title><%= title %></title>
<% } else { %>
<title>AnyImg</title>
<% } %> -->
<link href='//fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'>
<script src=" / javascripts / backbone.js "></script>
<script src="
https: //www.parsecdn.com/js/parse-1.2.8.min.js"></script>
< script >
Parse.initialize("n47hKoBkN2vbAAjIPd8rj6Dnc9P6zKYIlXvlZo3x", "a960Z8aOzTNOaKMUcvDQ7lvzT2v2VTHABh6lAdNx"); < /script>
<script type="text/javascript
" src=" / javascripts / main.js "></script>
</head>
<body>
<div id="
content ">
<div id="
bar ">
<h1>File Upload</h1>
</div>
<div id="
main ">
<form id="
upload ">
<div class="
outer ">
<div>
<input type="
text " name="
title " placeholder="
Untitled " />
<input id="
asd " type="
file " />
</div>
</div>
</form>
<img id="
img " src="
" />
<div id="
base "></div>
</div>
</div>
</body>
</html>// These two lines are required to initialize Express in Cloud Code.
var express = require('express');
var app = express();
// Global app configuration section
app.set('views', 'cloud/views'); // Specify the folder to find templates
app.set('view engine', 'ejs'); // Set the template engine
app.use(express.json());
app.use(express.urlencoded());
app.get('/', function(req, res) {
res.render('layout', {
recipe_name: 'e.g. Rice Cake'
});
});
app.post('/newUploadImage', function(req, res) {
var file = new Parse.File("logo.png", {
base64: req.body.image
});
file.save().then(function() {
console.log("file saved");
console.log(file.url());
});
if (req.params.image) {
console.log("data found12345");
}
});
app.listen();这是图像js
var base64Data;
var imageName = '';
function readImage(input) {
if (input.files && input.files[0]) {
imageName = input.files[0].name;
var FR = new FileReader();
FR.onload = function(e) {
$('#img').attr("src", e.target.result);
$('#base').text(e.target.result);
base64Data = e.target.result;
var datObj = {
image: e.target.result,
name: imageName
};
var test = {
image: '12sds'
};
$.ajax({
type: "POST",
data: datObj,
url: '/newUploadImage',
dataType: "json",
success: function(msg) {
alert(msg.url);
console.log();
},
error: function(errormsg) {
console.log(errormsg);
alert("Sorry, there was an error uploading the image.");
}
});
};
FR.readAsDataURL(input.files[0]);
}
}
$(function() {
// Make all of special links magically post the form
// when it has a particular data-action associated
$("#asd").change(function() {
readImage(this);
alert('Test');
});
});谢谢！
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