Injecting List, Array, Set, and Map from Spring Configuration Files Using @Value and EL Expressions

This article explains how to store and inject collection types such as List, array, Set, and Map in Spring configuration files, demonstrates the pitfalls of using @Value directly, and provides practical solutions using @ConfigurationProperties, EL split functions, and custom decoders for flexible and safe property binding.

BackendEL expressionJava

0 likes · 7 min read

Injecting List, Array, Set, and Map from Spring Configuration Files Using @Value and EL Expressions

Zhuanzhuan Tech

Jun 19, 2024 · Backend Development

Designing Visual Workflow Orchestration with LiteFlow: From Basic Components to Advanced AST Generation

This article explains how to use the LiteFlow rule‑engine framework to define reusable Java components, express execution flows with EL expressions, design a visual canvas that converts JSON into an abstract syntax tree, generate valid EL code via DFS, and manage workflow updates through push‑pull refresh mechanisms, while also outlining benefits and future plans.

ASTEL expressionJava

0 likes · 18 min read

Designing Visual Workflow Orchestration with LiteFlow: From Basic Components to Advanced AST Generation

Su San Talks Tech

Oct 11, 2021 · Backend Development

Unlock the Full Power of Spring’s @Value: Tips, Tricks, and Hidden Features

This comprehensive guide explores Spring's @Value annotation, covering basic usage, property name handling, encoding issues, default values, static fields, various data types, collection injection, EL expressions, bean injection, and the differences between ${} and #{} to help Java developers master configuration injection.

@ValueConfigurationEL expression

0 likes · 19 min read

Unlock the Full Power of Spring’s @Value: Tips, Tricks, and Hidden Features