Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find net.sf.json-lib:json-lib:jar:1.5:2.4 in http://uk.maven.org/maven2/ was cached in the local repository, resolution will not be reattempted until the update interval of ui has elapsed or updates are forced

在專案中新增json-lib依賴時：

<dependency>
    <groupId>net.sf.json-lib</groupId>
    <artifactId>json-lib</artifactId>
    <version>2.4</version>
</dependency>

專案編譯時，執行 mvn compile -X 檢視到具體的詳細資訊：提示： Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find net.sf.json-lib:json-lib:jar:1.5:2.4 in

Caused by: org.apache.maven.project.DependencyResolutionException: Could not resolve dependencies for project com.example:myboot:jar:0.0.1-SNAPSHOT: Failure to find net.sf.json-lib:json-lib:jar:1.5:2.4 in http://uk.maven.org/maven2/ was cached in the local repository, resolution will not be reattempted until the update interval of ui has elapsed or updates are forced
	at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:211)
	at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:195)
	... 24 more
Caused by: org.eclipse.aether.resolution.DependencyResolutionException: Failure to find net.sf.json-lib:json-lib:jar:1.5:2.4 in http://uk.maven.org/maven2/ was cached in the local repository, resolution will not be reattempted until the update interval of ui has elapsed or updates are forced
	at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:384)
	at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:205)
	... 25 more

 

看到：

jar的名稱中多了 jdk13、jdk15，所以需要新增classfier。classifier表示在相同版本下針對不同的環境或者jdk使用的jar, 如果配置了這個元素，則會將這個元素名在加在jar包的後面來查詢相應的jar，所以上面的json-lib-2,4是找不到jar包的。修改為以下配置：

<dependency>
            <groupId>net.sf.json-lib</groupId>
            <artifactId>json-lib</artifactId>
            <version>2.4</version>
            <classifier>JDK15</classifier>
        </dependency>

這樣配置即可找到json-lib-2.4-jdk15.jar 。