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Showing posts from May, 2019

How To Deploy Spring Boot Web Application To Production

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Building web application is somewhat hard, but with good tools support, good programming language, and good framework, this daunting hard time consuming tasks can be minimized and can be somewhat fun. Building web application using Spring Boot has many benefits, of course your gonna doing it faster, easier, large community support, and the beautiful maintainable codes. And the results of your web application performance, because it is Java technology, it can be fast, salable, and capable of handling thousands of thousands transactions. This time i am not going to share java codes, it's just an easy simple tasks how you gonna deploy your application to production server. Of course there's lot of ways to do it, but for this time, i am only showing you 2 of the most easiest way to deploy your application. 1. Embedded Tomcat This is the easiest way, basically you just installed Tomcat to your server, this is article to doing that How to install tomcat on Ubuntu . After that...
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What is GraphQL anyway?

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GraphQL becomes really popular in these days, what's GraphQL anyway, is it something similiar with SQL, is it just replacement of SQL? For current usage, Graphql is not gonna replace SQL, because most of todays application  using GraphQl in fact still need a database to get data, and database system like MySQL, not changing, and it is pretty dangerous if you expose GraphQl to directly connecting to your database, it is mainly becuase GraphQL can be queriend front frontend application. GraphQl is just a spesification, people can doing whatever they want with a spesification but mostly in current most uses, is how you can query a data from front end application that has spesific limitation by the server side of your application. It can be use to get your data, it can be use to delete a data, it can be use to updating your data, pretty much everything we need for an application. GraphQL is a query language for APIs and a run time for fulfilling those queries with your existing...
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How To Create Service On Windows

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Windows is really amazing OS, you have cool GUI, full, optimize performance especially for personal PC, it has lot of capabilities that any other OS can't compete with windows. And if you are programmer, windows also support you by providing easiness of program development, like for example when we have a program need to have a service whenever every user log on to their computer. You can create a (.bat) file to be executed when user doing installation. To create service for experiment purpose, you can run cmd using administration privileges sc create MyServiceName binpath= "\"C:Program Files (x86)\My Service\yourProgram.exe\" --someparameter=0" displayname= "My Service" The trick is, always create space after equals sign, and always create double-quotes in your program location. You can add more option, like for the example above we define displayname which will appear as our service name, You can also read more detail about SC command here f...
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Popular posts from this blog

ERROR 1348 Column Password Is Not Updatable When Updating MySQL Root Password

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MySQL and MariaDB password As already mentioned in the title of this blog, this error message sometimes occurred when we are trying to update our root password database, either MySQL or MariaDB, The error says: ERROR 1348 (HY000): Column 'Password' is not updatable This is because if we use this SQL command to update our database root password, and it turn out to be Restricted by MySQL to use update on mysql database. UPDATE mysql.user SET Password=PASSWORD('1234') WHERE User='root'; The solutions for MySQL Error1348 So you can not update a user password using Update commands, to update the password, use ALTER commands instead. like the following. ALTER USER 'root'@'localhost' IDENTIFIED BY '1234'; And then you need to do the flush privileges to commit previous queries (that alter command above) into the system, simply do like this. flush privileges; So now you have your root with password 1234. Although it is recommended to...
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How To Create Spring Boot Project Using Netbeans

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Spring Boot is a handy tool that simplifies the development of Spring Framework applications by reducing the need for cumbersome configuration. In this tutorial, I'll guide you through creating a Spring Boot application using the Netbeans IDE. While you can certainly create a Spring Boot application in Netbeans manually, it's much easier with a plugin designed for Spring development. Here's a step-by-step guide to get you started: 1. Install the Spring Boot Plugin: Open Netbeans and navigate to the Tools menu. Click on "Plugins." Once the Plugins window opens, select the "Available Plugins" tab. Look for the "Nb SpringBoot" plugin, then install and activate it. 2. Create a New Spring Boot Project: After restarting Netbeans IDE, you can create a new project with Spring Boot. Go to File > New Project. Under Categories, select Maven, then choose "Spring Boot Basic." 3. Add Dependencies: With your new project created, open the po...
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Spring Kafka - How to use ReplyingKafkaTemplate send and reply synchronously

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Microservice Spring with Apache Kafka Today, I want to share how to use Kafka. It's quite interesting once you get the hang of it, and I hope my explanation will make it a bit easier for you. So, Kafka is primarily known as an asynchronous messaging queuing system. This means it allows different parts of your application to communicate with each other without waiting for immediate responses. However, there are times when you might need a more immediate reply from another service in your project. Luckily, Kafka can handle this too. Here’s how it works: The client side sends a message to the server side via Kafka. This message includes a special identifier in the Kafka header request, known as KafkaHeaders.CORRELATION_ID, along with a topic where the server should respond. The server, after processing the request, sends a message back to the same topic with the same correlation ID. This way, the client knows that the message is a response to its initial request and can act accordingl...
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