From scratch, learn to use the FINAGLE MySQL framework in the Java library

From scratch, learn to use the FINAGLE MySQL framework in the Java library introduce FINAGLE MySQL is a MySQL client framework based on the Java class library. It provides high -reliability, high -performance, asynchronous non -blocking MySQL access capabilities.This article will introduce how to learn the use of the FINAGLE MySQL framework in the Java class library from scratch, and provide some Java code examples. Step 1: Install FINAGLE MySQL dependencies First of all, we need to add relying on FINAGLE MySQL to the Java project.We can use Maven or Gradle to build tools, add the following coordinates to the configuration file of the project to quote FINAGLE MySQL: Maven： <dependency> <groupId>com.twitter</groupId> <artifactId>finagle-mysql_2.12</artifactId> <version>21.2.0</version> </dependency> Gradle： groovy implementation 'com.twitter:finagle-mysql_2.12:21.2.0' Step 2: Establish a connection Before using FINAGLE MySQL, we need to build a connection with the MySQL server.The following is an example code that shows how to create a connection through FINAGLE MySQL: import com.twitter.finagle.Mysql; import com.twitter.finagle.mysql.Client; import com.twitter.finagle.mysql.Row; import com.twitter.finagle.mysql.Result; public class MySQLExample { public static void main(String[] args) { Client client = Mysql.client() .withCredentials("username", "password") .withDatabase("database") .newRichClient("localhost:3306"); // The operation after the connection is successful client.close (); // Close the connection } } In the above example, we use `mysql.client ()` to create a MySQL Client object, set the user name and password through the `WithcRedentials ()`, specify the database to be connected by `withdatabase ()`).`Specify the server address and port. Step 3: execute SQL query After the connection is successful, we can use FINAGLE MySQL to perform the SQL query operation.The following is an example code that shows how to use FINAGLE MySQL to perform a SQL query: // ... Create a connection code ... String query = "SELECT * FROM users"; Result result = client.query (query) .get (); // execute the query and get the result if (result != null) { for (Row row : result.rows()) { // Process each line of data } } // ... Close the connection code ... In the above example, we use the `client.qury () method to execute a SQL query and obtain the query results through the method of the` .Get () `method.If the query is successful, we can process the results by traversing each line of data. Step 4: execute SQL update In addition to query operations, we can also use FINAGLE MySQL to perform SQL update operations (such as Insert, Update, or Delete).The following is an example code that shows how to use FINAGLE MySQL to execute a SQL update: // ... Create a connection code ... String updateQuery = "INSERT INTO users (name, age) VALUES ('John', 25)"; Result result = client.qury (updateQuery) .get (); // execute the update operation if (result != null && result.updateCount() > 0) { // Update operation successfully } else { // The update operation failed } // ... Close the connection code ... In the above example, we use the `Client.qury () method to perform a SQL update operation, and to obtain the update results through the method of the` .Get () `method.If the update operation is successful, then `result.UpdateCount ()` will return the number of new rows. Summarize This article introduces how to learn the use of the FINAGLE MySQL framework in the Java class library from scratch.By installing dependence, establishment of connection, executing SQL query, and executing SQL update steps, we show the basic operation of using FINAGLE MySQL.I hope this article will help Java developers who want to use the FINAGLE MySQL framework.