解决POI报错POIXMLTypeLoader不存在的问题

问题：

java 复制代码

springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: org/apache/poi/POIXMLTypeLoader
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1082)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:655)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)

1。我这里使用POI版本为4.2.1

java 复制代码

	    <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>4.2.1</version>
        </dependency>

我使用的poi-tl版本为1.8.2 此版本要求POI 4.2.1+ ，JDK1.8+

java 复制代码

        <dependency>
            <groupId>com.deepoove</groupId>
            <artifactId>poi-tl</artifactId>
            <version>1.8.2</version>
        </dependency>
        
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>4.1.2</version>
        </dependency>

        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml-schemas</artifactId>
            <version>4.1.2</version>
        </dependency>
        
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-scratchpad</artifactId>
            <version>3.17</version>
        </dependency>

最重要的一步来了

== 你的ooxml-schemas的版本可能为1.3，但是要求得大于1.3，咱就使用最新版本的1.4==

java 复制代码

       <dependency>
          <groupId>org.apache.poi</groupId>
          <artifactId>ooxml-schemas</artifactId>
          <version>1.4</version>
      </dependency>
      ```
      然后就可以解决了