If you like to load environment specific spring configuration you can do this using profile. In other words, if you want to load a set of beans that have different settings on different environment (development, testing or production) you can use profile feature instead of pointing to a different spring xml configuration at each stage.
Building your first app with the new Android Studio.
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If you like to automate repetitive tasks with database you can achieve this using Maven SQL plugin. Simply it does for you whatever you need to do with a database at any given phase of Maven life-cycle.
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We have seen in Mybatis + Spring (XML | Annotation) Mapper how to write a simple mybatis-spring app and what is actually needed to get it up and running. Here I will extend that sample code to cover more stuff that you may face in a real “coding”. We will see how to make a single select that will fetch the one and the many of a “one-to-many” relationship, who to use mybatis config file with spring (if you need it), how to test mybatis-spring code using junit and things you need to watch out!
H2 embedded database has been used to make this example easy to run. But you still can use it with other databases e.g. “MySql, Oracle,….”
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jQuery-File-Upload js library is “so far” the most elegant, smart, simple..etc js library I have used to upload files. Simply it is amazing. It supports async upload “Ajax”, multiple files upload, drag&drop, progress update and a lot more. Here we will see an example of uploading multiple files to Spring MVC app. Bootstrap has been used in this example to make the UI more attractive.
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Maven gives the ability to build a new project from a predefined archetype templates i.e. it generates for us the basic files so we can start coding right away. However, sometimes we need to have our customized version of these templates, fortunately Maven gives us the ability to create those templates which will be used to build our projects.
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Using Maven you can create the foundation for a java web project with a simple command. Also, you can run it easily using Jetty Maven plugin.
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Here we will see what we need to do to connect to a relational database “MySql, Oracle, H2..etc” using myBatis with Spring framework & how to implement mappers using xml or annotation such as @Select, @Insert,….etc. For the sake of simplicity I have used H2 embedded database so you can run the sample code. However, you can use this sample code to run with MySql or any other relational database.
Source Code @ github
Note: If you have Maven you can run this sample code directly using ../spring-mybatis>mvn exec:java
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If you create a java project using Maven you can run it using Maven.
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You can upload files to Spring MVC app in many different ways. For the server side, using MultipartHttpServletRequest is the easiest way to get uploaded files. For the client side we have different options, traditional synchronous method “using html form with submit” or asynchronous method by using Ajax.
Similar Post: Spring MVC + jQuery File Upload (multiple, drag&drop, progress…)
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