打包本地jar包，依赖冲突

打包
1、将该项目使用maven打包，idea中右边栏M，在Lifecycle中点击package
2、复制项目下target/poi-utils-xuanyun.jar

引入
1、将jar包复制到项目目录下，如(src/main/resources/lib/poi-utils-xuanyun.jar)
2、引入依赖

```
    <dependency>
            <groupId>com.xiaominge.utils</groupId>
            <artifactId>poi-utils-xuanyun</artifactId>
            <version>1.0</version>
            <scope>system</scope>
            <systemPath>${pom.basedir}/src/main/resources/lib/poi-utils-xuanyun.jar</systemPath>
        </dependency>
```

依赖冲突
如果引入了easypoi，会导致该工具类某些方法找不到
原因：easypoi中poi版本过低
解决：在easypoi中排除关联依赖，显式导入
```
<dependency>
            <groupId>cn.afterturn</groupId>
            <artifactId>easypoi-spring-boot-starter</artifactId>
            <version>4.0.0</version>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.poi</groupId>
                    <artifactId>poi</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.poi</groupId>
                    <artifactId>poi-ooxml</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.poi</groupId>
                    <artifactId>poi-scratchpad</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.poi</groupId>
                    <artifactId>poi-ooxml-full</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.poi</groupId>
                    <artifactId>poi-ooxml-schemas</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.11.0</version>
        </dependency>

<dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>5.2.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>5.2.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml-full</artifactId>
            <version>5.2.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-scratchpad</artifactId>
            <version>5.2.2</version>
        </dependency>
```

总结
如果还存在问题，下载maven helper插件，在pom文件文件下方的Dependency Analyzer中选择Conflicts，查询冲突
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