In the server, do something like this: Suppose String data=”data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAPAAAADwCAYAAAA+VemSAAAgAEl…==” Then: String base64Image = data.split(“,”)[1]; byte[] imageBytes = javax.xml.bind.DatatypeConverter.parseBase64Binary(base64Image); Then you can do whatever you like with the bytes like: BufferedImage img = ImageIO.read(new ByteArrayInputStream(imageBytes));
You have to change the values in the CATALINA_OPTS option defined in the Tomcat Catalina start file. To increase the PermGen memory change the value of the MaxPermSize variable, otherwise change the value of the Xmx variable. Linux & Mac OS: Open or create setenv.sh file placed in the “bin” directory. You have to apply … Read more
build – dependency that is only needed by the build process runtime – dependency that is needed to run the application, but not compile it e.g. JDBC implementation for specific database vendor. This would not typically be needed at compile-time because code depends only the JDBC API, rather than a specific implementation thereof compile – … Read more
If you need it in an artifact that supports dependency injection, simply inject grailsApplication class MyController { def grailsApplication def myAction = { def bar = grailsApplication.config.my.property } } If you need it in a bean in, say, src/groovy or src/java, wire it up using conf/spring/resources.groovy // src/groovy/com/example/MyBean.groovy class MyBean { def grailsApplication def foo() … Read more
To calculate the elapsed time with JodaTime, use Period. To format the elapsed time in the desired human representation, use PeriodFormatter which you can build by PeriodFormatterBuilder. Here’s a kickoff example: DateTime myBirthDate = new DateTime(1978, 3, 26, 12, 35, 0, 0); DateTime now = new DateTime(); Period period = new Period(myBirthDate, now); PeriodFormatter formatter … Read more
I have been using Grails more than 4 months now and I will try to give you my personal feeling about Grails and its usability. Is Grails now worth it vs Ruby or other roll your own? Of course, the answer is not ‘Yes’ or ‘No’ but it depends. It depends on your requirements (do … Read more
SpringSource’s goal is to make it as fast and easy as possible for people to build, run and manage Spring-based solutions. We have both Grails and Spring Roo because we deeply care about developer productivity and unquestionably both of these tools deliver a serious boost to what teams can achieve on top of Spring. We … Read more
Hibernate shows this error when you attempt to persist more than one entity instance sharing the same collection reference (i.e. the collection identity in contrast with collection equality). Note that it means the same collection, not collection element – in other words relatedPersons on both person and anotherPerson must be the same. Perhaps you’re resetting … Read more
Your configuration is for an h2:mem database. Memory Databases have no tables upon connecting to them, and any & all tables are lost when all the connections are closed. Furthermore, a (named) in memory database is unique to the JVM process that opens it. From the H2 documentation: Sometimes multiple connections to the same in-memory … Read more
FileUtils.copyDirectory() Copies a whole directory to a new location preserving the file dates. This method copies the specified directory and all its child directories and files to the specified destination. The destination is the new location and name of the directory. The destination directory is created if it does not exist. If the destination directory … Read more