1.问题：字体文件加载失败，本来应该是“X”号，现在只有一个小方块

2.原因：问题是Maven正在过滤字体文件并破坏它们。

<resource>
     <filtering>true</filtering>
                <directory>src/main/resources</directory>
                <includes>
                    <include>application-${profileActive}.properties</include>
                    <include>application.properties</include>
                </includes>
            </resource>

3.解决方案：不过滤这些font文件

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <configuration>
                    <nonFilteredFileExtensions>
                        <nonFilteredFileExtension>ttf</nonFilteredFileExtension>
                        <nonFilteredFileExtension>woff</nonFilteredFileExtension>
                        <nonFilteredFileExtension>woff2</nonFilteredFileExtension>
                    </nonFilteredFileExtensions>
                </configuration>
            </plugin>