原始碼地址：
https://github.com/todayido/springbootActiviti

idea 提示錯誤：No beans of ‘UserMapper’ type found.

解決：UserMapper 新增標籤 @Repository，注意@Resource也不行

mybatis 提示錯誤：Invalid bound statement(not found)

原因：生成的classes路徑下沒有XML檔案

解決：pom.xml 檔案中在 builder 標籤中新增，使用 springboot:run 啟動專案即可，有時候 idea 中的 shift + F10 因為無法生成 XML 檔案，待定解決。

<build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>com.example.demo.Application</mainClass>
                </configuration>
            </plugin>
        </plugins>
    </build>