I have imported a google web app project and added the servlet.jar file but I don not know how to set the servlet.jar file in my classpath. How do I go about doing that. Am new to eclipse and this is a project am collaborating with somebody. I am using a macbook.
If you had received an App Engine project, then an Eclipse Import should have done the trick and setup the paths correctly.
Since, it is not done, you will need to do the following for an App Engine project.
In your Eclipse project that you have imported, visit Project Properties and then Java Build Path.
In the Libraries Tab, check if an App Engine SDK library is present or not. If yes , expand it, you will see the servlet-api.jar file.
If not, Add Library from there and choose the current App Engine Library that you have set up on our system.
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I have a java based web application, which has certain java files and due to some need, i have added some jar files with in the project and made it project specific.
Now, While deploying them in production, I see, that the web file server (tomcat6) already has those jar files in its global library. Now, How do i remove reference of that jar file it, with out disturbing my code(which is working fine).
I saw in other article saying we just have to change the build path to refer the global library instead of local library.
Finally I have 2 questions.
How to do this?
If i'm working on windows and using path while configuring the build path, will it not be a problem if i deploy it in Unix environment.?
Please suggest. Also, its the problem with servlet-api.jar.
I use eclipse IDE. So how to perform these changes in eclipse?
Open your web project in eclipse and right click on the project. click on Properties and then choose build path and remove the jars you want to remove under the tab 'Libraries' and then export the war and deploy it in your tomcat6 server. if you want to run your web application in eclipse, you have to configure the server libraries by clicking 'Add Library' button in build path and then choose server runtime and choose the tomcat6 server configured in eclipse. Hope this helps
I'm trying to import an API that I found online - joda time - into my program.
I've downloaded the files, stuck them in my source folder, but obviously since it isn't integrated into my program they won't work.
I've spent a lot of time googling around for different methods (maybe I'm searching for the wrong thing?) as well as just randomly doing a bunch of different things inside eclipse (I'm developing with eclipse) that include the word "package" or "import", to no avail.
I don't know if it's worth mentioning but my program is being built with the google app engine, and all their stuff is organized in a nice com.xxx.xxxx format, which I think is ultimately what I need to get my stuff into - I just don't know how.
Anyway, sorry if this is a ridiculously trivial question, and thanks in advance to anyone that helps.
You should just have to put the joda-time jar file inside the WEB-INF/lib folder of your project. This folder contains all the libraries that must be delivered with your application, and are automatically added to the build path of your project by Eclipse.
Since you are using Eclipse, you can use the library functions to add in external packages.
Right click on your project, and then choose Build Path --> Configure Build Path.
Click on the Libraries button at the top, and then click the Add External JARs... button.
Select the JAR file in your JODA directory.
If you are using the Eclipse deployment tools, this will automatically package your JAR file in to your web application. If it doesn't do that automatically, add that same JAR file in to your WEB-INF/lib directory (copy it in to your project).
I feel like a 4-year old who has a slice of bread with pb and a slice with jelly and is asking how to make a sandwich..
I've been given the responsibility of maintaining a javaEE website that was done by our parent company that no loner supports us. I'm relatively new to JavaEE and I'm trying to figure out how to recompile the files that need to be modified from within the root folder of the site.
I downloaded NetBeans to help me with this, but still can't figure it out. My problem is that the java files can't find any of the packages and resources they are dependent on. As far as I know, the resources are there.. although, I do see some packages starting with "com." and "javax.", and I don't see a 'com' or 'javax' folder anywhere.. I believe my problem has something to do with setting the class path in the project properties in NetBeans.. I tried that but either I'm not doing it right, or its not working. This whole Java compilation is so foreign to me, it'd be really great if someone could lead me in the right direction of getting this website compiled.
I posted a pick of the folder hierarchy of the website to help:
I'm trying to compile the RecordAdd.java file here specifically at the moment. Some of the packages it is trying to import come from its parent folder, asp, of the folder it is in, easp. The file is also trying to import com.icesoft.faces.component.*; where '*' consists of several different imports of the parent packages. I don't see a com folder like I mentioned, but I do see icefaces.jar files in the lib folder in WEB-INF folder. I've tried putting these folders in NetBeans Library-Compile category classpath, but that didn't do anything.
I'm not doing something right, that is probably a basic knowledge of compiling java projects, but I'm just not getting it. I really appreciate any help, just please don't be too harsh. Thanks!
Try to find out which IDE the original devs used. I see a nbproject folder which indicated Netbeans (unless that was created by you) so try opening the project in Netbeans as a Java EE project. I'd also try to open it in Eclipse, it has good importing capabilities and can sometimes figure out the classpath on it's own. Download the Java EE version of Eclipse and install the Web Tools Project. You can also try to see if there is a build file that will compile and generate a war file for you (something like build.xml).
It should be simple if the project was created in netbeans. Just go to File -> Open Project. Navigate to where the project is located. You will know if the folder is a project, because netbeans recognizes it and a different icon is displayed instead of a regular folder icon. Once you open your project, you can right click compile the project.
You don't use java compiler yourself to compile java files in a project. Compiling and building are done by tools like ant, maven... It's automated.
Importing existing projects into netbeans is a great way to loose a half a day.
I'm assuming that since there's a nbproject directory, this was built through netbeans, which should give you a leg up.
In the "Open Project" wizard, the top level of your application (not necessarily the sources) should have a friendly globe icon for a web application (.war) or a triangle for EE application (.ear). Open the triangle if there is one. Web applications can be packaged with EE applications through netbeans, so if the Web App you're trying to compile belongs to one, some of the build properties may be associated with it.
Looking at the file nbproject/build-impl.xml should give you hints about where your libraries folder was located. Make sure this path matches in your project properties under the Libraries header. These libraries can be shared among projects and therefore likely out of this projects directory structure and referenced or native to this project alone in which case jars are copied in to your lib folder.
There may be additional reference or server issues that netbeans detects (and gives a paltry error message for) which can be found in the project context menu under "Resolve Reference Issues" or "Resolve Missing Server". In netbeans projects are built against the servers they're run on right in the IDE. Check that you have the servers you want configured under Tools-> Servers, then ensure that server is linked in your project properties under Run.
This may not solve all your problems, but is a good start. Good Luck!
I am taking a class on Android and I am a newbie with JDeveloper. I am working on a Web Services application. I downloaded some code that has a "Import org.apache.commons.binary.Base64". JDeveloper is barking "not found" for this import. I found on the apache website the org.apache.commons.binary.Base64 module and downloaded it. What do I do now? I am not sure how or where to place this code. The downloaded folder has several folders and and way down at the bottom of one of them is my Base64 module. Sorry for such a basic question. I am using JDeveloper 11g 11.1.1.0.2 running on Windows 7.
If you downloaded the source, which is just Base64.java, just add it to your project as
org/apache/commons/binary/Base64.java
If you downloaded a jar, add that to your project classpath. In JDeveloper this should be available from the project properties dialog and select "Libraries\Classpath".
Of course, if you distribute this project it will need to adhere to the Apache license.
I'm using Eclipse Ganymede to create a web application, but the project's currently just a standard Java project. I want to convert it to a Dynamic Web Project and I need a hand in doing that.
I've had suggestions given to me about editing the .project file, but when I restart Eclipse it refuses to open the project claiming the file is corrupt. There's also no facet management options in the project properties.
Any suggestions?
Although this question is already answered I'd like to say that I managed to convert my project into web project by changing project facets Properties->Project Facet and just checked Dynamic Web Module
Well. I'll tell you why, folks. It's because a lot of these guides miss out some fundamental things.
Yes, you need to change the .project file to add some missing natures and builders (create a new Dynamic Web Project and examine the created .project file to see what's missing).
You also need to add things to the .settings folder. It'll be missing two or three files, one of which is a key xml file. They're all required for it to understand the new natures you've given it.
Huzzah for computers.
When you cannot add the "Dynamic Web Module" via "Project Facets" make sure you unlock and disable the "Utility Module" since they are mutually exclusive.
I've spend quite sometime (re)editing the raw .project-file (according to the earlier mentioned sites) until I discovered this. It was probably was set when I was messing with my maven configuration.
Run on server option is not displaying in eclipse .
The solution for it that i found is " check Project properties / Project Facets / Dynamic Web module" . For this we need to unlock utility module and then check Dynamic Web Module.
But , Utility module is also necessary for Java EE Application. So how to select both Utility and Dynamic Web Module to make it Dynamic Web Project so that we can get Run On server Option.
Note : I have already copied necessary things in .project file and files in .settings folder.