After you create a maven project in eclipse for spring application development, you always need to use maven to clean, build, install, and deploy the spring application to a tomcat server to see the result. This article will tell you how to make maven deploy to tomcat in eclipse project.
How To Deploy A Maven Project To Tomcat From Eclipse Read More »
I have some spring projects in my workspace. And I use GitHub to manage all the source code of different spring projects. When I import those spring projects to a newly set up machine in eclipse, I find an error message like Failure to transfer antlr:antlr:jar:2.7.7 from https://repo.maven.apache.org/maven2 was cached in the local repository. After
H2 is an embedded database developed in Java, it is free from platform constraints. It is only a class library and can be embedded directly into the java application. The biggest advantage of using the H2 database is that it can be packaged and distributed with java applications, which makes it very convenient to store
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Eclipse.ini file is the configuration file where you can edit eclipse tool startup settings, such as increase eclipse JVM heap size to let it use more memory. And spring tool suite is based on eclipse, but the configuration file is not eclipse.ini, it’s name is sts.ini. But the file content is the same. This article
How To Change STS Eclipse INI File On MacOS Read More »
When you develop a spring java project with maven, sometimes you may encounter errors like below. This is a crazy error because the reason is not very clear. I tried a lot of methods such as rebuild the project, recreate the project, and even delete the .m2 directory to re-download all the maven jar files
SpEL is an abbreviation of Spring Expression Language which can be used to query property value from a properties file (Use $), or manipulate java objects and it’s attributes at runtime( Use #). Both of the two modifiers ($ or # ) can be used in the spring XML configuration files directly or can be
Spring Expression Language Example $ vs # Read More »
If you want to save configuration data in an external properties file, and then read them in the spring application, you can use PropertyPlaceholderConfigurer class. This class has a location attribute where you can specify the external properties file location. It then can read the data from the external properties file, and you can use
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Request scope and session scope are important web application concepts. Request scope is short-live scope, request scope object only exists in one HTTP request. But session scope is long-live than request scope, session scope object exists between every request in an HTTP session. Spring provides annotations for you to make a java bean exist in
Spring MVC Request And Session Scoped Bean Example Read More »
This example will show you how to implement spring MVC form elements and how to process form submit action. It uses spring form:radiobutton to implement Html radio button, form:checkbox to implement Html checkbox, form:select to implement Html drop-down list.
Spring MVC Form Submit Example Read More »
MongoDB is most popular today, it is a NoSQL database. This article will tell you how to install it on macOS correctly.
How To Install MongoDB On Mac Read More »