낭만 프로그래머

간단하게 암호화 복호화 소스- Apache Commons Codec 라이브러리가 필요 https://commons.apache.org/proper/commons-codec/download_codec.cgiimport org.apache.commons.codec.binary.Base64; import java.io.UnsupportedEncodingException; import java.security.InvalidAlgorithmParameterException; import java.security.InvalidKeyException; import java.security.Key; import java.security.NoSuchAlgorithmException; import javax.crypto...

1. build.gradle 에 추가implementation 'com.fasterxml.jackson.core:jackson-core:2.9.7' implementation 'com.fasterxml.jackson.core:jackson-annotations:2.9.7' implementation 'com.fasterxml.jackson.core:jackson-databind:2.9.7' 2. Object 또는 List → JSONList webSiteModels = handler.selectModelList(ModelType.WEB_SITE); ObjectMapper mapper = new ObjectMapper(); try { //파일로 저장 mapper.writeValue(new File("c:\..