개발자인생

sudo chown -R $(whoami) /usr/local

cd "$(brew --repo)" && git fetch && git reset --hard origin/master && brew update

sudo chmod 0755 /usr/local

import com.fasterxml.jackson.core.JsonGenerator;

import com.fasterxml.jackson.core.JsonProcessingException;

import com.fasterxml.jackson.databind.JsonSerializer;

import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;

public class NullToEmptyStringSerializer extends JsonSerializer<Object>{

    @Override

    public void serialize(Object o, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException, JsonProcessingException {

        jsonGenerator.writeString("");

    }

}

import com.fasterxml.jackson.databind.ObjectMapper;

public class CustomObjectMapper extends ObjectMapper {

    private static final long serialVersionUID = 1L;

    public CustomObjectMapper(){

        getSerializerProvider().setNullValueSerializer(new NullToEmptyStringSerializer());

    }

}

@Configuration

public class JsonCustomConfigure {

    @Bean

    public MappingJackson2HttpMessageConverter converter() {

        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();

        CustomObjectMapper mapper = new CustomObjectMapper();

        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

        converter.setObjectMapper(mapper);

        return converter;

    }

}

sqlplus ID/PASSWORD@IP주소:포트번호/SID

sqlplus ID/PASSWORD@IP주소:포트번호/SID << EOF

update .....  ;

delete ......   ;

insert ....    ;

commit;

exit

EOF