Question

我对Spring启动有点新手，下面是我的应用程序的POM / Java文件：

social.github.username

主要的java应用程序代码片段如下 -

<?xml version="1.0" encoding="UTF-8"?>
<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.aj.stuff.install</groupId>
    <artifactId>MyProject</artifactId>
    <version>0.0.1</version>
    <packaging>jar</packaging>

    <name>Some-Name</name>
    <description>Some Stuff</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.1.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
        <finalName>MyProject</finalName>
    </build>

</project>

现在，当我尝试运行命令mvn package时，我得到以下错误 -

@SpringBootApplication
public class MyApplication {

    public static void main(String[] args) throws IOException, InterruptedException {
        SpringApplication.run(MyApplication.class, args);
...

我已尝试排除许多其他帖子中提到的重新包装，但没有好处。有什么建议吗？

OS - Win 7 64位

Maven - Apache Maven 3.3.9（bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T22：11：47 + 05:30）

此外，我从spring intializr中选择了一个裸骨项目并尝试了[INFO] --- spring-boot-maven-plugin:1.4.1.RELEASE:repackage (default) @ MY-Bootstrap --- [WARNING] The POM for org.springframework.boot:spring-boot-loader-tools:jar:1.4.1.RELEASE is invalid, transitive dependencies (if any) will not be available, able debug logging for more details [WARNING] Error injecting: org.springframework.boot.maven.RepackageMojo java.lang.NoClassDefFoundError: org/springframework/boot/loader/tools/LaunchScript at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) at java.lang.Class.getDeclaredConstructors(Class.java:2020) at com.google.inject.spi.InjectionPoint.forConstructorOf(InjectionPoint.java:245) at com.google.inject.internal.ConstructorBindingImpl.create(ConstructorBindingImpl.java:99) at com.google.inject.internal.InjectorImpl.createUninitializedBinding(InjectorImpl.java:658) at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:882) at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:805) at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:282) at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:214) at com.google.inject.internal.InjectorImpl.getProviderOrThrow(InjectorImpl.java:1006) at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1038) at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1001) at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1051) at org.eclipse.sisu.space.AbstractDeferredClass.get(AbstractDeferredClass.java:48) at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81) at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:53) at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:65) at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:115) at org.eclipse.sisu.bean.BeanScheduler$Activator.onProvision(BeanScheduler.java:176) at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:126) at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:68) at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:63) at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45) at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016) at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092) at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012) at org.eclipse.sisu.inject.Guice4$1.get(Guice4.java:162) at org.eclipse.sisu.inject.LazyBeanEntry.getValue(LazyBeanEntry.java:81) at org.eclipse.sisu.plexus.LazyPlexusBean.getValue(LazyPlexusBean.java:51) at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:263) at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:255) at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:517) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:121) 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) Caused by: java.lang.ClassNotFoundException: org.springframework.boot.loader.tools.LaunchScript at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50) at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239) ... 55 more并出现了相同的错误。任何与我的机器，maven或其他任何相关的问题？

由于

Answer 1

从您获得的异常判断，@Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); // click on icon to go back //triangle icon on the main android toolbar. if (id == android.R.id.home) { //your code return true; } return super.onOptionsItemSelected(item); }依赖项的下载已损坏。

找到maven下载依赖项的目录（默认情况下，用户目录中的spring-loaded目录）。找到.m2目录并将其删除。这将迫使maven再次下载依赖项。

您可以使用Maven依赖项插件来清除entires，而不是手动删除依赖项。

spring-loaded

这应该从mvn dependency:purge-local-repository目录中删除依赖项，并强制在下一个.m2上重新下载。（见Force re-download of release dependency using Maven）

Answer 2

看起来加载了错误版本的spring-boot-loader-tools.jar。此link可能会帮助您解决问题

Answer 3

spring boo loader工具jar文件已损坏

从本地存储库中删除此文件夹并运行maven install以再次下载jar文件

\。平方米\库\有机\ springframework的\引导\弹簧引导装载程序的工具

无法将我的Spring启动应用程序打包为可运行的胖Jar

3 个答案: