如何强制maven更新?

我将我已经工作的项目导入到另一台计算机上，它开始下载依赖项。

显然我的网络连接崩溃了，现在我得到了以下信息:

    >Build errors for comics; org.apache.maven.lifecycle.LifecycleExecutionException:
    Failed to execute goal on project comicsTest: Could not resolve dependencies for project comicsTest:comicsTest:war:0.0.1-SNAPSHOT:
    The following artifacts could not be resolved:
    org.springframework:spring-context:jar:3.0.5.RELEASE,
    org.hibernate:hibernate-entitymanager:jar:3.6.0.Final,
    org.hibernate:hibernate-core:jar:3.6.0.Final,
    org.hibernate:hibernate-commons-annotations:jar:3.2.0.Final,
    org.aspectj:aspectjweaver:jar:1.6.8,
    commons-lang:commons-lang:jar:2.5,

    >mysql:mysql-connector-java:jar:5.1.13: Failure to transfer org.springframework:spring-context:jar:3.0.5.RELEASE from http://repo1.maven.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced.

    >Original error: Could not transfer artifact org.springframework:spring-context:jar:3.0.5.RELEASE from central (http://repo1.maven.org/maven2): No response received after 60000

如何强制maven更新?

当前回答

mvn clean install -U

-U表示强制更新快照依赖项。

如果之前从未成功下载过发布依赖项，则将以这种方式更新。裁判:https://stackoverflow.com/a/29020990/32453

2012-03-14 08:06:29

其他回答

重要的是，使用-U和不使用-U运行mvn的主要区别是-U将用远程SNAPSHOT jar覆盖本地SNAPSHOT jar。

如果你的proj中有其他模块生成jar，则从本地mvn安装创建本地快照jar。

2017-03-12 09:30:40

mvn clean install -e -U -Dmaven.test.skip=true

-e详细异常 -U强制更新 -DskipTests不执行测试用例，但编译测试用例类，在目标/测试类下生成相应的类文件。 -Dmaven.test。Skip =true，不执行测试用例或编译测试用例类。使用maven。测试。Skip不仅跳过运行单元测试，还跳过编译测试代码。

一个小建议。如果使用IntelliJ Idea编译器，建议清理缓存

2022-09-29 10:55:27

What maven does is, it downloads all your project's dependencies into your local repo (.m2 folder). Because of the internet causing issues with your local repo, you project is facing problems. I am not sure if this will surely help you or not but you can try deleting all the files within the repository folder inside the .m2 folder. Since there would be nothing in the local repo, maven would be forced to download the dependencies again, thus forcing an update. Generally, the .m2 folder is located at c:users:[username]:.m2

2019-04-17 17:12:47

我有同样的错误，运行mvn install -U，然后运行mvn install为我工作。

2016-03-10 19:10:11

我试了这里所有的答案，但似乎都不管用。重启我的电脑，然后运行mvn clean install -U。这解决了我的问题。

2019-02-25 09:29:49

如何强制maven更新?

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