[Java] log4j Log λ 벨
λ‘κ·Έλ₯Ό μ¬μ©νλ λͺ©μ
μλΉμ€ λμ λ° μ₯μ μν νμ
log4j
Log for Java
λ€μν λμμΌλ‘ λ‘κ·Έλ₯Ό μΆλ ₯ ν μ μλ μ€νμμ€ μ
λλ€
System.out.println()μ μ¬μ©νλ©΄ ν΄λΉ λ‘κ·Έλ₯Ό μ¬μ©νμ§ μκ³ μΆμλ μμ ν΄μΌνμ§λ§,
log4jμ λ‘κ·Έλ 벨μ μ¬μ©νλ©΄ μνλ λ²μμ λ‘κ·Έλ§ μΆλ ₯ν μ μμ΄ νΈλ¦¬ν©λλ€.
λ€μ΄λ‘λ λ§ν¬: https://logging.apache.org/log4j/1.2/download.html
Apache log4j 1.2 - Download Apache log4j 1.2
Log4j 2 is nominated for the JAX Innovation Awards! Do you like its performance, garbage-free logging, and easy and flexible configuration? Log4j 2 needs your love. Vote for Log4j 2! End of Life On August 5, 2015 the Logging Services Project Management Com
logging.apache.org
Log level
log4j λΌμ΄λΈλ¬λ¦¬λ₯Ό μ¬μ©νλ©΄ 6λ¨κ³μ event levelμ Config level μ€μ μ λ°λΌ μ€μ ν μ μμ΅λλ€
TRACE : Debugλ³΄λ€ λ μμΈν μ 보
DEBUG : νλ‘κ·Έλ¨ λλ²κΉ
μν μ 보
INFO : μνλ³κ²½κ³Ό κ°μ μ λ³΄μ± λ©μμ§
WARN : μ²λ¦¬ κ°λ₯ν λ¬Έμ , ν₯ν μμ€ν
μλ¬μ μμΈμ΄ λ μ μλ κ²½κ³ μ± λ©μμ§
ERROR : μμ²μ μ²λ¦¬νλ μ€ λ¬Έμ κ° λ°μν κ²½μ°
FATAL : μμ£Ό μ¬κ°ν μλ¬κ° λ°μν μν, μμ€ν
μ μΌλ‘ μ¬κ°ν λ¬Έμ κ° λ°μν΄μ μ΄ν리μΌμ΄μ
μλμ΄ λΆκ°λ₯ν κ²½μ°
Log level μμ
TRACE > DEBUG > INFO > WARN > ERROR > FATAL