save

问题 How can you render and save a web page as an image in PHP, probably with a width of 600px. How can I render a page in PHP without using a browser? How can I save it with a given resolution and image format (jpeg)? The functionality is similar to Google Preview, except it will not be displayed in a rollover. Similar to this question, which is answered in C#. How to save a web page as image Thanks! 回答1: You should get wkhtmltoimage, which is very easy to utilize from within PHP: exec("..

问题 I'm trying to create a realtime report using an API that allows me to grab the data I need and returns it in XML format. What I want to know is, after receiving the response, how can I save it to an .xml file locally? Or cache it, that way I can parse it before parsing the response. import requests r = requests.get('url', auth=('user', 'pass')) I'm using requests since it's the easiest way to make a GET call in my opinion. Also, this is my first question and I'm barely starting to learn

问题 For the last few weeks I have been attempting to alter Zxing to take a photo immediately upon scan. Thanks to help I am at a point where I can be consistently saving an image from the onPreviewFrame class within PreviewCallback.java The code I use within the onPreviewMethod method shall follow, and then a short rundown of how my app works. public void onPreviewFrame(byte[] data, Camera camera) { Point cameraResolution = configManager.getCameraResolution(); Handler thePreviewHandler =

问题 I'm developing a web with CakePHP 1.3.7. Everything is going fine and I love it, but I just came accross a problem (probably because of my lack of knowledge) that I can't figure out how to fix. This is my problem: In the website, there's the typical 'manage my account' area, where users can only access when they're logged in. In this area, there's a link that calls to an action in the same 'users' controller called 'edit_items'. So when a user goes to edit_items , the action receives as a

问题 I have a bit of Javascript code that creates a "save friendly" version of a webpage. child = window.open("","child"); child.document.write(htmlPage); "htmlPage" is the basic html of the page with all the javascript references taken out, a different set of header images references, etc. Everything displays perfectly in the popup window, with no javascript running. When I click on "File->Save As", the saved file is the parent window, along with all of its javascript, and with no trace of the

问题 If I make a domain object in a controller and don't call .save() , Grails will do it for me automatically at some point. I am creating lots of domain objects without planning to save all of them and getting 'references an unsaved transient instance' exceptions when my service exits. How would I get a list of all objects that Grails will try to save when the controller/service exits so that I could prevent some of them from being saved? 回答1: You're better off retrieving instances that you know

问题 Currently my application, takes a photo, and put's the data into a ImageView. public void openCamera() { Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); if (takePictureIntent.resolveActivity(getPackageManager()) != null) { startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE); } } protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) { Bundle extras = data

问题 Using cstdio , what is the safest way of overwriting a file? 'safe' in this case meaning that there's no chance the file will become incomplete or corrupted; the file will either be the completely overwritten, or it will be the old file should something have gone awry. I imagine the best way to do this, would be to create a temporary intermediate file, then overwrite the old file once that intermediate is complete. If that actually is the best way though, there's a few other problems that'd

问题 I've used this tutorial to create an app with a table view that is populated using an NSMutableArray. Now I'd like to add the functionality to add additional items to the array and save/load them. I've customized the Fruit class to look like this: #import <UIKit/UIKit.h> @interface Fruit : NSObject { NSString *name; NSString *instructions; NSString *explination; NSString *imagePath; } @property(nonatomic,copy) NSString *name; @property(nonatomic,copy) NSString *instructions; @property

问题 I create a modelForm with instance to existing model (Book). I am not able to update the Books record. Adding a new record is fine but when I attempt to update, it appears to be unable to find the publisher (which is a foreign key). Error is "No Publisher matches the given query." models.py class Publisher(models.Model): name = models.CharField(max_length=30) address = models.CharField(max_length=50) city = models.CharField(max_length=60) state_province = models.CharField(max_length=30)