What are common mistakes developers make with Connection?

When working with database connections in Java, developers often encounter several common mistakes that can lead to resource leaks, performance issues, or unexpected behaviors. Understanding these pitfalls can help streamline your database interactions and enhance application reliability.

Java, database connection, common mistakes, resource management, JDBC, connection pooling

This article outlines common mistakes developers make with database connections in Java and provides best practices to avoid them.

// Common mistakes in Java when handling Database Connections // 1. Not closing connections Connection conn = null; try { conn = DriverManager.getConnection(DB_URL, USER, PASS); // Perform database operations } catch (SQLException e) { e.printStackTrace(); } finally { // Forgetting to close the connection can lead to resource leaks if (conn != null) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } // 2. Using the same connection for multiple threads // Connections should not be shared between threads to avoid concurrency issues. // 3. Not using connection pooling // Creating a new connection for every request can degrade performance. // It's better to use a connection pool to reuse connections.

Java database connection common mistakes resource management JDBC connection pooling

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