Configuration

• Soulock
• 07 Aug, 2022
• • java,
  • spring

ConfigurationProperties Static Variable Injection Pitfalls

Problem Description When using @ConfigurationProperties annotation, static variables cannot be injected directly. Solution private static String copyrightYear;public static String getCopyrightYear() { return copyrightYear; }// set method cannot have static keyword public void setCopyrightYear(String copyrightYear) { HaiAnConfig.copyrightYear = copyrightYear; }/* // This won't work for injection public static void setCopyrightYear(String copyrightYear) { HaiAnConfig.copyrightYear = copyrightYear; } */Key Point The set method cannot have the static keyword, otherwise @ConfigurationProperties cannot inject values correctly.