[ JSTL ]
<form:select path="courseCd" title="종목을 선택해주세요.">
<option value="">선택하세요</option>
<c:forEach var="code" items="${codeMap.values()}">
<form:option value="${code.code_cd}">
<c:out value="${code.code_nm}"/>
</form:option>
</c:forEach>
</form:select>
[ Thymeleaf ]
<select th:field="*{courseCd}" title="종목을 선택해주세요.">
<option th:each="code : ${codeMap.values()}"
th:value="${code.code_cd}"
th:text="${code.code_nm}"
>선택</option>
</select>