java – NetBeans 7.2,启动maven spring项目并添加hibernate

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我正在尝试将maven作为构建系统迁移,以便对依赖项进行更标准的管理.

这是我要做的步骤和我问的简单(maven新手)问题.这个过程是最直接的,我可以想象,所以这个问题应该很容易重现.

>让我们从File,New Project,Maven,Web Application开始.
在下面的表单中,我保留所有默认值,但是对于我选择“Apache Tomcat 7.0.11.0”的应用程序服务器字段.
我注意到这个向导没有提出任何框架(Sring,Hibernate等),而标准的非maven项目创建向导确实允许包含框架的选择.

如果我们现在看看这个项目,我们看到的是：

所以第一个问题是：为什么春天已经被包括在内,甚至在我明确添加它之前？

我们来看看项目属性：

所以没有选择框架.
我想将spring用于它的依赖注入容器(以后我可能会添加spring安全性,但这不是当下的优先事项).我是否需要再次添加它,因为如上所述,已经包含了一些核心模块？

>在项目属性中,在框架节点中,我添加了Hibernate并选择了数据库连接.依赖关系现在变为如下.

其中两个(我在屏幕截图中突出显示它们)被标记为“依赖尚未下载.构建项目以纠正错误”(当您将指针移到它们上面时,您可以看到此消息作为提示).我已经构建了项目,但错误仍然存??在.
在maven的输出中,我看到：

Failed to execute goal on project CreatingMavenSpringProject: Could not resolve dependencies for project com.mycompany:CreatingMavenSpringProject:war:1.0-SNAPSHOT: The following artifacts could not be resolved: javax.sql:jdbc-stdext:jar:2.0, javax.transaction:jta:jar:1.0.1B: Could not find artifact javax.sql:jdbc-stdext:jar:2.0 in unknown-jars-temp-repo (file:C:\Users\agostino\Documents\NetBeansProjects\CreatingMavenSpringProject/lib) -> [Help 1]

To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.

我按照它的建议尝试过：

org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal o
n project CreatingMavenSpringProject: Could not resolve dependencies for project
 com.mycompany:CreatingMavenSpringProject:war:1.0-SNAPSHOT: The following artifa
cts could not be resolved: javax.sql:jdbc-stdext:jar:2.0, javax.transaction:jta:
jar:1.0.1B: Failure to find javax.sql:jdbc-stdext:jar:2.0 in file:C:\Users\agost
ino\Documents\NetBeansProjects\CreatingMavenSpringProject/lib was cached in the
local repository, resolution will not be reattempted until the update interval o
f unknown-jars-temp-repo has elapsed or updates are forced
        at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDe
pendencies(LifecycleDependencyResolver.java:210)
        at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resol
veProjectDependencies(LifecycleDependencyResolver.java:117)
        at org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAr
eResolved(MojoExecutor.java:258)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:201)
        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.buildProje
ct(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProje
ct(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBu
ild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(Lifecycl
eStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Laun
cher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.jav
a:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(La
uncher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:
352)
Caused by: org.apache.maven.project.DependencyResolutionException: Could not res
olve dependencies for project com.mycompany:CreatingMavenSpringProject:war:1.0-S
NAPSHOT: The following artifacts could not be resolved: javax.sql:jdbc-stdext:ja
r:2.0, javax.transaction:jta:jar:1.0.1B: Failure to find javax.sql:jdbc-stdext:j
ar:2.0 in file:C:\Users\agostino\Documents\NetBeansProjects\CreatingMavenSpringP
roject/lib was cached in the local repository, resolution will not be reattempte
d until the update interval of unknown-jars-temp-repo has elapsed or updates are
 forced
        at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(D
efaultProjectDependenciesResolver.java:189)
        at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDe
pendencies(LifecycleDependencyResolver.java:185)
        ... 22 more
Caused by: org.sonatype.aether.resolution.DependencyResolutionException: The fol
lowing artifacts could not be resolved: javax.sql:jdbc-stdext:jar:2.0, javax.tra
nsaction:jta:jar:1.0.1B: Failure to find javax.sql:jdbc-stdext:jar:2.0 in file:C
:\Users\agostino\Documents\NetBeansProjects\CreatingMavenSpringProject/lib was c
ached in the local repository, resolution will not be reattempted until the upda
te interval of unknown-jars-temp-repo has elapsed or updates are forced
        at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDepe
ndencies(DefaultRepositorySystem.java:375)
        at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(D
efaultProjectDependenciesResolver.java:183)
        ... 23 more
Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: The follo
wing artifacts could not be resolved: javax.sql:jdbc-stdext:jar:2.0, javax.trans
action:jta:jar:1.0.1B: Failure to find javax.sql:jdbc-stdext:jar:2.0 in file:C:\
Users\agostino\Documents\NetBeansProjects\CreatingMavenSpringProject/lib was cac
hed in the local repository, resolution will not be reattempted until the update
 interval of unknown-jars-temp-repo has elapsed or updates are forced
        at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(Def
aultArtifactResolver.java:538)
        at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArti
facts(DefaultArtifactResolver.java:216)
        at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDepe
ndencies(DefaultRepositorySystem.java:358)
        ... 24 more
Caused by: org.sonatype.aether.transfer.ArtifactNotFoundException: Failure to fi
nd javax.sql:jdbc-stdext:jar:2.0 in file:C:\Users\agostino\Documents\NetBeansPro
jects\CreatingMavenSpringProject/lib was cached in the local repository, resolut
ion will not be reattempted until the update interval of unknown-jars-temp-repo
has elapsed or updates are forced
        at org.sonatype.aether.impl.internal.DefaultUpdateCheckManager.newExcept
ion(DefaultUpdateCheckManager.java:230)
        at org.sonatype.aether.impl.internal.DefaultUpdateCheckManager.checkArti
fact(DefaultUpdateCheckManager.java:204)
        at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(Def
aultArtifactResolver.java:427)
        ... 26 more

现在我陷入困境,请注意,当您尝试添加hibernate时,这是maven项目的开箱即用行为.如何解决这个问题？

解决方法:

使用Tomcat 7.0.27我没有看到第一个问题(Spring依赖项),但我可以复制第二个问题(无法下载depdencies).检查pom.xml我发现它有错误,比如这个依赖：

<dependency>
    <groupId>unknown.binary</groupId>
    <artifactId>derbyclient</artifactId>
    <version>SNAPSHOT</version>
</dependency>

和这个存储库：

<repository>
    <id>unknown-jars-temp-repo</id>
    <name>A temporary repository created by NetBeans for libraries and jars it 
    could not identify. Please replace the dependencies in this repository with 
    correct ones and delete this repository.</name>
    <url>file:${project.basedir}/lib</url>
</repository>

尽管Netbeans wiki页面显示了使用Maven项目选择框架的示例,但我建议在“Dependencies”节点的“Add dependency …”选项中添加依赖项.

编辑：在不同的计算机中重复相同的步骤后添加了pom.xml错误.

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