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Maven 已经成功加载依赖,但是依然报错的解决方案
先看pom.xml文件
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.gxwz</groupId>
<artifactId>lottery3</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<finalName>lottery</finalName>
</build>
<properties>
<spring.version>5.1.5.RELEASE</spring.version>
</properties>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.hynnet/jxl -->
<dependency>
<groupId>com.hynnet</groupId>
<artifactId>jxl</artifactId>
<version>2.6.12.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/taglibs/standard -->
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml-schemas -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.14</version>
</dependency>
</dependencies>
</project>
再看项目截图:
根据截图可以看到,项目已经成功加载了依赖的所有jar包了,
但是问题来了,pom.xml文件报错,显示jar包没找到。
根据测试发现,一添加org.apache.poi 的这个jar包pom.xml就会有报错。
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml-schemas -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.14</version>
</dependency>
经过了半天的折腾才发现是Maven在后台执行管理jar包时出现了很多xxx.jar.lastUpdated文件。
解决方案:
在项目的Libraries-Maven Dependencies 下找到搞事情的Maven依赖包poi-xxx.ar,
鼠标右键找到该jar包在本地仓库中的具体位置
然后再把xxx.jar.lastUpdated后缀的文件全部干掉
更新Maven项目 右键项目-Maven-Update Project
更新之后报错全部消失,大功告成!
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