Servlet Filter 处理乱码

pom.xml

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>4.0.1</version>
    <scope>provided</scope>
</dependency>

代码实现

@WebFilter(urlPatterns = {"/*"})
public class SetCharacterEncoding implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        // 防止中文乱码。
        response.setCharacterEncoding("utf-8");
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html; charset=UTF-8");
        chain.doFilter(request, response);
    }

    @Override
    public void destroy() {
    }
}