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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 public class S3Util { Regions clientRegion = Regions.AP_NORTHEAST_2; final String bucketName = "버킷네임"; final String accesskey = "액세스키"; final String secretkey = "비밀키"; public String getBucketName() { return bucketName; } public St..

Unsupported major.minor version 52.0 jasype 연동시 위와 같은 오류가 발생하면1.jdk 버전을 1.8로 올리거나 2.jdk 버전에 맞은 version 을 찾는다12345678910111213141516Caused by: java.lang.UnsupportedClassVersionError: com/ulisesbocchio/jasyptspringboot/EnableEncryptablePropertySourcesPostProcessor : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassL..

1) isEmpty public static boolean isEmpty(String str) Checks if a String is empty ("") or null. StringUtils.isEmpty(null) = true StringUtils.isEmpty("") = true StringUtils.isEmpty(" ") = false StringUtils.isEmpty("bob") = false StringUtils.isEmpty(" bob ") = false 2) isBlank public static boolean isBlank(String str) Checks if a String is whitespace, empty ("") or null. StringUtils.isBlank(null) =..

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