ClassNotFoundException异常

时间：2017-02-28 10:09:35

标签： java spring tomcat jersey-1.0

我开发了一个使用球衣2和弹簧4的项目，但我不得不用球衣1.19替换球衣2，当我这样做时，我得到一个名为＆＃34; java.lang.ClassNotFoundException：com.sun的异常。 jersey.core.util.FeaturesAndProperties＆＃34;，在tomcat服务器上运行时。是否从jersey 2迁移到jersey 1.19导致此异常？。谢谢

我的web.xml 

<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
          http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    version="3.0">

    <!-- Spring Listener -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- Jersey Servlet -->
    <servlet>
        <servlet-name>FITransXT</servlet-name>
        <servlet-class>
            com.sun.jersey.spi.spring.container.servlet.SpringServlet
        </servlet-class>
        <!-- Register resources and providers -->
        <init-param>
            <param-name>com.sun.jersey.config.property.packages</param-name>
            <param-value>com.mobileware.fitransxt</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>FITransXT</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

    <!-- loading Spring Context for registering beans with ApplicationContext -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>WEB-INF/FITransXT-servlet.xml</param-value>
    </context-param>



</web-app>

我的Pom.xml 

<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>
  <!-- <dependencyManagement>
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-framework-bom</artifactId>
    <version>4.3.1.RELEASE</version>
</dependency>
  </dependencyManagement> -->
  <parent>
    <groupId>com.mobileware.fitransxt</groupId>
    <artifactId>FITransXT</artifactId>
    <version>0.0.1</version>
  </parent>
  <artifactId>FITransXT-Impl</artifactId>
  <dependencies>
  <dependency>
   <groupId>com.mobileware.fitransxt</groupId>
 <artifactId>FITransXT-Type</artifactId>
 <version>0.0.1</version>
 </dependency> 
 <dependency>
 <groupId>com.mobileware.fitransxt</groupId>
 <artifactId>FITransXT-BOImpl</artifactId>
 <version>0.0.1</version>
 </dependency>
 <!--  <dependency>
 <groupId>com.mobileware.fitransxt</groupId>
 <artifactId>FITransXT-DaoImpl</artifactId>
 <version>0.0.1</version>
 </dependency> -->
    <!-- Jersey core Servlet 2.x implementation -->
<!--     <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-servlet-core</artifactId>
        <version>${jersey.version}</version>
          <scope>compile</scope> 
    </dependency> -->
     <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-server</artifactId>
        <version>${jersey.version}</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-core -->
<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-core</artifactId>
    <version>${jersey.version}</version>
</dependency>
    <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-servlet -->
<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-servlet</artifactId>
    <version>${jersey.version}</version>
</dependency>

   <!-- Jersey JSON Jackson (2.x) entity providers support module -->
  <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.7.3</version>
</dependency>
  <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.7.3</version>
</dependency>


    <!-- Jersey extension module providing support for Spring 3 integration -->
    <dependency>
        <groupId>com.sun.jersey.contribs</groupId>
        <artifactId>jersey-spring</artifactId>
        <version>${jersey.version}</version>
        <exclusions>
            <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
            </exclusion>
            <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring-web</artifactId>
            </exclusion>
             <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
            </exclusion>
              <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
            </exclusion>
              <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
            </exclusion>
             <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
            </exclusion>
             <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring-asm</artifactId>
            </exclusion>
            <exclusion>
             <groupId>org.springframework</groupId>
                <artifactId>spring-aop</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
 <!-- https://mvnrepository.com/artifact/org.glassfish.jersey.ext/jersey-bean-validation -->


    <!-- Spring Framework-4.x -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
     <dependency>  
<groupId>org.springframework</groupId>  
<artifactId>spring-aop</artifactId>  
<version>${spring.version}</version>  
  </dependency> 
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
</dependencies>
<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <spring.version>4.3.1.RELEASE</spring.version>
        <jersey.version>1.19</jersey.version>
        <slf4j.version>1.7.2</slf4j.version>
        <jdk.source.version>1.8</jdk.source.version>
        <jdk.target.version>1.8</jdk.target.version>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>
</project>

依赖树

-- maven-dependency-plugin:2.8:tree (default-cli) @ FITransXT-Web ---
[INFO] com.mobileware.fitransxt:FITransXT-Web:war:0.0.1
[INFO] +- com.mobileware.fitransxt:FITransXT-Impl:jar:0.0.1:compile
[INFO] |  +- com.mobileware.fitransxt:FITransXT-Type:jar:0.0.1:compile
[INFO] |  |  +- (org.springframework:spring-context:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-context-support:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (com.google.code.gson:gson:jar:2.3.1:compile - omitted for duplicate)
[INFO] |  |  +- (org.slf4j:slf4j-api:jar:1.7.6:compile - omitted for duplicate)
[INFO] |  |  +- (org.slf4j:slf4j-log4j12:jar:1.7.5:compile - omitted for duplicate)
[INFO] |  |  \- (org.json:json:jar:20160810:compile - omitted for duplicate)
[INFO] |  +- com.mobileware.fitransxt:FITransXT-BOImpl:jar:0.0.1:compile
[INFO] |  |  +- com.mobileware.fitransxt:FITransXT-BOIntf:jar:0.0.1:compile
[INFO] |  |  |  +- (com.mobileware.fitransxt:FITransXT-Type:jar:0.0.1:compile - omitted for duplicate)
[INFO] |  |  |  +- (com.google.code.gson:gson:jar:2.3.1:compile - omitted for duplicate)
[INFO] |  |  |  +- (org.slf4j:slf4j-api:jar:1.7.6:compile - omitted for duplicate)
[INFO] |  |  |  +- (org.slf4j:slf4j-log4j12:jar:1.7.5:compile - omitted for duplicate)
[INFO] |  |  |  \- (org.json:json:jar:20160810:compile - omitted for duplicate)
[INFO] |  |  +- com.mobileware.fitransxt:FITransXT-DaoImpl:jar:0.0.1:compile
[INFO] |  |  |  +- commons-dbcp:commons-dbcp:jar:1.4:compile
[INFO] |  |  |  |  \- commons-pool:commons-pool:jar:1.5.4:compile
[INFO] |  |  |  +- com.mobileware.fitransxt:FITransXT-Dao:jar:0.0.1:compile
[INFO] |  |  |  |  +- (com.mobileware.fitransxt:FITransXT-Type:jar:0.0.1:compile - omitted for duplicate)
[INFO] |  |  |  |  +- mysql:mysql-connector-java:jar:5.1.6:compile
[INFO] |  |  |  |  +- org.apache.commons:commons-dbcp2:jar:2.1:compile
[INFO] |  |  |  |  |  +- org.apache.commons:commons-pool2:jar:2.3:compile
[INFO] |  |  |  |  |  \- (commons-logging:commons-logging:jar:1.2:compile - omitted for duplicate)
[INFO] |  |  |  |  +- (com.google.code.gson:gson:jar:2.3.1:compile - omitted for duplicate)
[INFO] |  |  |  |  +- (org.slf4j:slf4j-api:jar:1.7.6:compile - omitted for duplicate)
[INFO] |  |  |  |  +- (org.slf4j:slf4j-log4j12:jar:1.7.5:compile - omitted for duplicate)
[INFO] |  |  |  |  \- (org.json:json:jar:20160810:compile - omitted for duplicate)
[INFO] |  |  |  +- com.oracle:ojdbc6:jar:11.2.0:compile
[INFO] |  |  |  +- (com.google.code.gson:gson:jar:2.3.1:compile - omitted for duplicate)
[INFO] |  |  |  +- (org.slf4j:slf4j-api:jar:1.7.6:compile - omitted for duplicate)
[INFO] |  |  |  +- (org.slf4j:slf4j-log4j12:jar:1.7.5:compile - omitted for duplicate)
[INFO] |  |  |  \- (org.json:json:jar:20160810:compile - omitted for duplicate)
[INFO] |  |  +- (org.json:json:jar:20160810:compile - omitted for duplicate)
[INFO] |  |  +- (log4j:log4j:jar:1.2.14:compile - omitted for conflict with 1.2.17)
[INFO] |  |  +- org.apache.httpcomponents:httpclient:jar:4.3.4:compile
[INFO] |  |  |  +- org.apache.httpcomponents:httpcore:jar:4.3.2:compile
[INFO] |  |  |  +- (commons-logging:commons-logging:jar:1.1.3:compile - omitted for conflict with 1.2)
[INFO] |  |  |  \- commons-codec:commons-codec:jar:1.6:compile
[INFO] |  |  +- (com.google.code.gson:gson:jar:2.3.1:compile - omitted for duplicate)
[INFO] |  |  +- (org.slf4j:slf4j-api:jar:1.7.6:compile - omitted for duplicate)
[INFO] |  |  \- (org.slf4j:slf4j-log4j12:jar:1.7.5:compile - omitted for duplicate)
[INFO] |  +- com.sun.jersey:jersey-server:jar:1.19:compile
[INFO] |  |  \- (com.sun.jersey:jersey-core:jar:1.19:compile - omitted for duplicate)
[INFO] |  +- com.sun.jersey:jersey-core:jar:1.19:compile
[INFO] |  |  \- javax.ws.rs:jsr311-api:jar:1.1.1:compile
[INFO] |  +- com.sun.jersey:jersey-servlet:jar:1.19:compile
[INFO] |  |  \- (com.sun.jersey:jersey-server:jar:1.19:compile - omitted for duplicate)
[INFO] |  +- com.fasterxml.jackson.core:jackson-databind:jar:2.7.3:compile
[INFO] |  |  +- com.fasterxml.jackson.core:jackson-annotations:jar:2.7.0:compile
[INFO] |  |  \- (com.fasterxml.jackson.core:jackson-core:jar:2.7.3:compile - omitted for duplicate)
[INFO] |  +- com.fasterxml.jackson.core:jackson-core:jar:2.7.3:compile
[INFO] |  +- com.sun.jersey.contribs:jersey-spring:jar:1.19:compile
[INFO] |  |  \- (com.sun.jersey:jersey-servlet:jar:1.19:compile - omitted for duplicate)
[INFO] |  +- org.springframework:spring-core:jar:4.3.1.RELEASE:compile
[INFO] |  |  \- commons-logging:commons-logging:jar:1.2:compile
[INFO] |  +- org.springframework:spring-context:jar:4.3.1.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-aop:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- org.springframework:spring-beans:jar:4.3.1.RELEASE:compile
[INFO] |  |  |  \- (org.springframework:spring-core:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-core:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  \- org.springframework:spring-expression:jar:4.3.1.RELEASE:compile
[INFO] |  |     \- (org.springframework:spring-core:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  +- org.springframework:spring-context-support:jar:4.3.1.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-beans:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-context:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  \- (org.springframework:spring-core:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  +- org.springframework:spring-web:jar:4.3.1.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-aop:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-beans:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-context:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  \- (org.springframework:spring-core:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  +- org.springframework:spring-aop:jar:4.3.1.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-beans:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  \- (org.springframework:spring-core:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  +- org.springframework:spring-webmvc:jar:4.3.1.RELEASE:compile
[INFO] |  |  +- (org.springframework:spring-aop:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-beans:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-context:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-core:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  +- (org.springframework:spring-expression:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  |  \- (org.springframework:spring-web:jar:4.3.1.RELEASE:compile - omitted for duplicate)
[INFO] |  +- (com.google.code.gson:gson:jar:2.3.1:compile - omitted for duplicate)
[INFO] |  +- (org.slf4j:slf4j-api:jar:1.7.6:compile - omitted for duplicate)
[INFO] |  +- (org.slf4j:slf4j-log4j12:jar:1.7.5:compile - omitted for duplicate)
[INFO] |  \- (org.json:json:jar:20160810:compile - omitted for duplicate)
[INFO] +- junit:junit:jar:3.8.1:test
[INFO] +- com.google.code.gson:gson:jar:2.3.1:compile
[INFO] +- org.slf4j:slf4j-api:jar:1.7.6:compile
[INFO] +- org.slf4j:slf4j-log4j12:jar:1.7.5:compile
[INFO] |  +- (org.slf4j:slf4j-api:jar:1.7.5:compile - omitted for conflict with 1.7.6)
[INFO] |  \- log4j:log4j:jar:1.2.17:compile
[INFO] \- org.json:json:jar:20160810:compile

编辑： 在控制台上：

java.lang.ClassNotFoundException: com.sun.jersey.core.util.FeaturesAndProperties
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1141)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1612)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1141)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1612)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1141)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1612)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
    at java.lang.Class.getConstructor0(Class.java:3075)
    at java.lang.Class.newInstance(Class.java:412)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1116)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4350)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4659)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
    at org.apache.catalina.startup.Embedded.start(Embedded.java:825)
    at org.codehaus.mojo.tomcat.AbstractRunMojo.startContainer(AbstractRunMojo.java:558)
    at org.codehaus.mojo.tomcat.AbstractRunMojo.execute(AbstractRunMojo.java:255)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

1 个答案:

答案 0 :(得分：1)

处理这类问题的方法 -

首先关闭IDE并从项目目录中删除target，.setting和.classpath。

1）仔细检查pom.xml中是否有多个不同版本的相同依赖项，如果是，则将其删除并运行命令 mvn clean install -U 。如果它不起作用那么

2）找到.m2目录并在此目录中搜索lastupdate文件并删除所有这些文件并运行命令 mvn clean install -U 。如果它不起作用那么

3）删除.m2 direcory并清理并安装maven。

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