Post

MyBatis snake_case와 CamelCase 매핑 자동화

Posted Updated
By dejavuhyo 1 min read

1. 데이터 테이블

  • test_table
test_idtest_value
1hoge
2fuga
3piyo

2. 소스 코드

1) TestTable.java

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package sample.mybatis;

public class TestTable {
    private int id;
    private String testValue;

    @Override
    public String toString() {
        return "TestTable [id=" + id + ", testValue=" + testValue + "]";
    }
}

2) mybatis-config.xml

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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
  <settings>
    <setting name="mapUnderscoreToCamelCase" value="true"/>
  </settings>

  ...
</configuration>

3) sample_mapper.xml

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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
    PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="sample.mybatis">

    <select id="selectTest" resultType="sample.mybatis.TestTable">
        select * from test_table
    </select>
</mapper>

3. 결과

전통적인 데이터베이스 칼럼명 형태인 A_COLUMN을 CamelCase형태의 자바 프로퍼티명 형태인 aColumn으로 자동으로 매핑하도록 함

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[testId=1, testValue=hoge]
[testId=2, testValue=fuga]
[testId=3, testValue=piyo]

[출처 및 참고]

Framework, MyBatis
mybatis-snakecase mybatis-camelcase snakecase-camelcase camelcase-from-snakecase snakecase-camelcase-매핑
This post is licensed under CC BY 4.0 by the author.