phonegap上传文件,phonegap下载文件,目录操作以及上传相册文件 - PhoneGap中文网

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="jquery/jquery.mobile-1.2.0.css" />
<script src="jquery/jquery-1.7.1.min.js"></script>
<script src="jquery/jquery.mobile-1.2.0.min.js"></script>
<script type="text/javascript" charset="utf-8" src="cordova-2.2.0.js"></script>
<script type="text/javascript" charset="utf-8">
document.addEventListener("deviceready", onDeviceReady, false);
var pictureSource; // getPicture:数据来源参数的一个常量
var destinationType; // getPicture中：设置getPicture的结果类型
function onDeviceReady() {
pictureSource = navigator.camera.PictureSourceType;
destinationType = navigator.camera.DestinationType;
}
var pickUrl;
function fromCamera(source){
navigator.camera.getPicture(function(imageURI){
var largeImage = document.getElementById('smallImage');
largeImage.style.display = 'block';
largeImage.src = imageURI;
pickUrl = imageURI;
}, function(){
if(source==pictureSource.CAMERA)
console.log('加载照相机出错!');
else
console.log('加载相册出错!');
}, {
quality : 50,
destinationType : destinationType.FILE_URI,
sourceType : source
});
}
/*********上传图片***************/
function uploadFile() {
var imageURI = pickUrl;
if(!imageURI)
alert('请先选择本地图片');
var options = new FileUploadOptions();
options.fileKey = "file";
options.fileName = imageURI.substr(imageURI.lastIndexOf('/') + 1);
options.mimeType = "image/jpeg";
var ft = new FileTransfer();
ft.upload(
imageURI,
encodeURI('http://192.168.93.114:1988/shandongTree/upload.jsp'),
function(){ alert('上传成功!');},
function(){ alert('上传失败!');},
options);
}
/**********下载相片***********/
function downloadPic(sourceUrl,targetUrl){
var fileTransfer = new FileTransfer();
var uri = encodeURI(sourceUrl);
fileTransfer.download(
uri,targetUrl,function(entry){
var smallImage = document.getElementById('smallImage');
smallImage.style.display = 'block';
smallImage.src = entry.fullPath;
},function(error){
console.log("下载网络图片出现错误");
});
}
function localFile() {
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, function(fileSystem){
//创建目录
fileSystem.root.getDirectory("file_mobile/download", {create:true},
function(fileEntry){ },
function(){ console.log("创建目录失败");});
var _localFile = "file_mobile/download/testtest4.jpg";
var _url = "http://192.168.93.114:1988/shandongTree/download.jsp?pId=13";
//查找文件
fileSystem.root.getFile(_localFile, null, function(fileEntry){
//文件存在就直接显示
var smallImage = document.getElementById('smallImage');
smallImage.style.display = 'block';
smallImage.src = fileEntry.fullPath;
}, function(){
//否则就到网络下载图片!
fileSystem.root.getFile(_localFile, {create:true}, function(fileEntry){
var targetURL = fileEntry.toURL();
downloadPic(_url,targetURL);
},function(){
alert('下载图片出错');
});
});
}, function(evt){
console.log("加载文件系统出现错误");
});
}
</script>
</head>
<body>
<a data-inline='true'
href="javascript:fromCamera(pictureSource.PHOTOLIBRARY)" data-role="button">来自相册</a>
<a data-inline='true'
href="javascript:fromCamera(pictureSource.CAMERA)" data-role="button">来自相机</a>
<a data-inline='true'
href="javascript:localFile()" data-role="button">显示缓存图片，没有则下载</a>
<a data-inline='true'
href="javascript:uploadFile()" data-role="button">上传图片</a>
<div style='height:200px;width:200px;border:1px solid green;align:center;'>
<img
style="width: 160px; height: 160px;" id="smallImage"
src="" />
</div>
</body>
</html>

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