macrozheng
Nov 29, 2021 · Backend Development
Why Constructor Injection Outperforms Field and Setter Injection in Spring
This article explains Spring's three dependency injection methods—field, constructor, and setter—examines why IntelliJ IDEA warns against field injection, and compares them across reliability, maintainability, testability, flexibility, cycle detection, and performance, concluding that constructor injection is generally the preferred approach.
Constructor InjectionField InjectionIDE warnings
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