embedding

问题 I have been working with Go on and off on my free time for a few months and I feel I\'ve been getting a hang of it. Coming from traditional OOP languages, such as Java and PHP, I had a hard time grasping composition and embedding in Go. I think it finally clicked recently and want to use it more, but I have hit a roadblock for one idea I have. Lets say I have a struct from a package that has a Validate method and I embedded that in my struct in the package I am currently working in. Is there

问题 Can Scala be used to script a Java application? I need to load a piece of Scala code from Java, set up an execution scope for it (data exposed by the host application), evaluate it and retrieve a result object from it. The Scala documentation shows how easy it is to call compiled Scala code from Java (because it gets turned into to regular JVM bytecode). But how can I evaluate a Scala expression on the fly (from Java or if that is easier, from within Scala) ? For many other languages, there

问题 Is there a way to force PDF files to open in the browser when the option \"Display PDF in browser\" is unchecked? I tried using the embed tag and an iframe, but it only works when that option is checked. What can I do? 回答1: To indicate to the browser that the file should be viewed in the browser, the HTTP response should include these headers: Content-Type: application/pdf Content-Disposition: inline; filename="filename.pdf" To have the file downloaded rather than viewed: Content-Type: