本文介绍了使用POST上传图片到网站时ENOENT（没有这样的文件或目录）：打开失败的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我保存的图像的URI字符串来SQLite作为字符串。我可以为它创造一个视图的意图查看图像。
但是当我把图片上传到使用FileBody Web服务器（新文件（theUriFromTheDatabase）），它总是说：打开失败：ENOENT（没有这样的文件或目录）
该文件的URI是：/内容：/媒体/外部/图像/媒体/ 667
事实：
- 我敢肯定的文件是存在的，因为我可以查看
- 我启用了读/写内部存储器，外部存储器读/写权限
- 使用的Galaxy Tab 2 10.1
- 它不具备一个SD卡
- 同一code工作在我的Experia还新V配合SD卡（是不是因为它没有SD卡？）
- 试图启动应用程序之前删除线
- 栓USB处于关闭状态
下面是code：
保护无效doInBackground（虚空...... PARAMS）{
// TODO自动生成方法存根 InspectionsDbController分贝=新InspectionsDbController（getActivity（））; InspectionItemStruct [] =插件db.getInspectionList（（（所有MyApplication）（（活动）mContext）.getApplication（））getCurrentInspectionId（））; 共享preferences设置= mContext.getShared preferences（MainActivity preFS_NAME，0）;
长的用户id = settings.getLong（用户id，0）;
字符串标记= settings.getString（令牌，）; 的for（int i = 0; I＆LT; ins.length;我++）{
HttpClient的HttpClient的=新DefaultHttpClient（）;
HttpContext的localContext =新BasicHttpContext（）;
HttpPost httpPost =新HttpPost（http://webprojectupdates.com/mmp/api/mobile/upload_inspection）;
MultipartEntity实体=新MultipartEntity（HttpMultipartMode.BROWSER_COMPATIBLE）; //添加用户id
尝试{
entity.addPart（用户id，新StringBody（将String.valueOf（用户ID）））;
entity.addPart（令牌，新StringBody（将String.valueOf（令牌）））; }赶上（IOException异常五）{
Log.e（MMP，错误添加标记：+ e.getMessage（））;
}
//添加媒体附件
如果（INS [I]在图像配！= NULL）{
//位图图像= BitmapFactory.de codeFILE（INS [I]在图像配）; // ByteArrayOutputStream BOS =新ByteArrayOutputStream（）;
//image.com$p$pss(Com$p$pssFormat.JPEG，75，BOS）;
//字节[]为imageData = bos.toByteArray（）;
// ByteArrayBody BAB =新ByteArrayBody（为imageData，图像/ JPG，插件[I] .itemId +JPG）; //entity.addPart(\"image，BAB）;
entity.addPart（形象，新FileBody（新文件（INS [I]在图像配）））;
}
如果（INS [I]。视频！= NULL）{
entity.addPart（视频，新FileBody（新文件（INS [I]。视频）））;
} //普通字符串数据
尝试{
entity.addPart（的itemId，新StringBody（将String.valueOf（INS [I] .itemId）））;
entity.addPart（ISEXIST，新StringBody（将String.valueOf（INS [I] .itemExists）））;
如果（INS [I]。点评！= NULL）entity.addPart（意见，新的StringBody（将String.valueOf（INS [I]。点评）））;
entity.addPart（条件，新StringBody（将String.valueOf（INS [I] .condition）））;
}赶上（IOException异常五）{
Log.e（MMP，在加入检查数据错误：+ e.getMessage（））;
} 尝试{
httpPost.setEntity（实体）;
HTT presponse响应= httpClient.execute（httpPost，localContext）;
字符串结果= EntityUtils.toString（response.getEntity（））;
}赶上（IOException异常五）{
Log.e（MMP，在处理结果错误：+ e.getMessage（））;
} publishProgress第（i + 1，ins.length）;
}
返回null;
}
解决方案
它需要的文件名，而不是如果URI字符串。感谢@mh
ContentResolver的CR = mContext.getContentResolver（）;
的String [] =投影{MediaStore.MediaColumns.DATA};
光标CUR = cr.query（Uri.parse（INS [I]在图像配），投影，NULL，NULL，NULL）;
如果（CUR！= NULL）{
cur.moveToFirst（）;
串文件路径= cur.getString（0）;
文件镜像文件=新的文件（文件路径）;
如果（imageFile.exists（））{
//做一些事情，如果它存在
entity.addPart（形象，新FileBody（镜像文件））;
}
其他{
//文件未找到
Log.e（MMP，没有找到图片）;
}
}
其他{
//开放的内容是无效的或发生其他错误
Log.e（MMP，无效的内容或一些错误发生）;
}
I saved the Uri String of an image to SQLite as string. I can view the image by creating a view intent for it.
but when I upload the image to the web server using FileBody(new File(theUriFromTheDatabase)) it always saying "open failed: ENOENT (No such file or directory)"
The file's uri is: "/content:/media/external/images/media/667"
Facts:
- I'm sure the file is there because I can view it
- I enabled internal storage read/write, external storage read/write permissions
- Using a Galaxy Tab 2 10.1
- It doesn't have an SD card
- Same code works on my Experia Neo V with SD card (is it because it has no SD card?)
- Tried removing the wire before starting the app
- Tethered USB is off
Here is the code:
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
InspectionsDbController db = new InspectionsDbController(getActivity());
InspectionItemStruct[] ins = db.getInspectionList(((MyApplication)((Activity) mContext).getApplication()).getCurrentInspectionId());
SharedPreferences settings = mContext.getSharedPreferences(MainActivity.PREFS_NAME, 0);
long userId = settings.getLong("userId", 0);
String token = settings.getString("token", "");
for (int i = 0; i < ins.length; i++) {
HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpPost httpPost = new HttpPost("http://webprojectupdates.com/mmp/api/mobile/upload_inspection");
MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
// add userId
try {
entity.addPart("userId", new StringBody(String.valueOf(userId)));
entity.addPart("token", new StringBody(String.valueOf(token)));
} catch (IOException e) {
Log.e("MMP","Error in adding token: "+e.getMessage());
}
// add media attachments
if(ins[i].image!=null){
//Bitmap image = BitmapFactory.decodeFile(ins[i].image);
//ByteArrayOutputStream bos = new ByteArrayOutputStream();
//image.compress(CompressFormat.JPEG, 75, bos);
//byte[] imageData = bos.toByteArray();
//ByteArrayBody bab = new ByteArrayBody(imageData,"image/jpg", ins[i].itemId+".jpg");
//entity.addPart("image", bab);
entity.addPart("image", new FileBody(new File (ins[i].image)));
}
if(ins[i].video!=null){
entity.addPart("video", new FileBody(new File (ins[i].video)));
}
// Normal string data
try {
entity.addPart("itemId", new StringBody(String.valueOf(ins[i].itemId)));
entity.addPart("isExist", new StringBody(String.valueOf(ins[i].itemExists)));
if(ins[i].comments!=null) entity.addPart("comment", new StringBody(String.valueOf(ins[i].comments)));
entity.addPart("condition", new StringBody(String.valueOf(ins[i].condition)));
} catch (IOException e) {
Log.e("MMP","Error in adding inspection data: "+e.getMessage());
}
try {
httpPost.setEntity(entity);
HttpResponse response = httpClient.execute(httpPost, localContext);
String result = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
Log.e("MMP","Error in handling result: "+e.getMessage());
}
publishProgress(i+1,ins.length);
}
return null;
}
解决方案
It needed the filename instead if the uri string. thanks @mh
ContentResolver cr = mContext.getContentResolver();
String[] projection = {MediaStore.MediaColumns.DATA};
Cursor cur = cr.query(Uri.parse(ins[i].image), projection, null, null, null);
if(cur != null) {
cur.moveToFirst();
String filePath = cur.getString(0);
File imageFile = new File(filePath);
if(imageFile.exists()) {
// do something if it exists
entity.addPart("image", new FileBody(imageFile));
}
else {
// File was not found
Log.e("MMP","Image not Found");
}
}
else {
// content Uri was invalid or some other error occurred
Log.e("MMP","Invalid content or some error occured");
}
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