STS 한글 깨짐 현상 해결

1. src→main→webapp→WEB-INF→web.xml에 아래 내용 추가

<!-- 인코딩 한글 처리 -->
<filter>
    <filter-name>encoding-filter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
        <param-name>encoding</param-name>
        <param-value>UTF-8</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>encoding-filter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

2. Window → preferences → Workspace → 왼쪽 하단 UTF-8로 변경

3. Window → preferences → Web → html, css, jsp Files도 UTF-8로 변경