当与mvn clean程序包一起打包时,正在运行的Jar不使用lib/*中的jars [英] Running Jar does not use jars from lib/* when packaged with mvn clean package
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问题描述
我有一个spring-boot应用程序,它首先打包到jar中 使用
I have spring-boot application, which is first packaged to jar using
mvn clean package
我试图以
java -jar target/bootstep-0.0.1-SNAPSHOT.jar
但是由于以下错误而失败.
But it fails due to following error.
2015-04-24 16:06:45.425 INFO 27324 --- [ost-startStop-1] c.s.j.api.core.PackagesResourceConfig : Scanning for root resource and provider classes in the packages:
com.netflix.discovery
com.netflix.eureka
2015-04-24 16:06:45.470 ERROR 27324 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Exception starting filter servletContainer
com.sun.jersey.core.spi.scanning.ScannerException: IO error when scanning jar
..
..
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: C:\springbootproject\target\bootstep-0.0.1-SNAPSHOT.jar!\lib\eureka-client-1.1.147.jar (The system cannot find the path specified)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
at java.net.URL.openStream(Unknown Source)
at com.sun.jersey.core.spi.scanning.uri.JarZipSchemeScanner.closing(JarZipSchemeScanner.java:123)
at com.sun.jersey.core.spi.scanning.uri.JarZipSchemeScanner.scan(JarZipSchemeScanner.java:75)
Jar文件eureka-client-1.1.147.jar存在于jar的lib文件夹中,MANIFEST.MF也包含该文件.
Jar file eureka-client-1.1.147.jar is present in lib folder inside jar and MANIFEST.MF also has entry of it.
请提出建议.
推荐答案
该问题是由于Jersey的限制所致-它无法处理嵌套的JAR文件.您需要将Boot配置为在应用启动时自动解压缩任何包含JAX-RS资源的JAR,例如:
The problem's due to a limitation in Jersey – it can't cope with nested JAR files. You need to configure Boot to automatically unpack any JARs containing JAX-RS resources when your app launches, for example:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<requiresUnpack>
<dependency>
<groupId>com.netflix.eureka</groupId>
<artifactId>eureka-core</artifactId>
</dependency>
<dependency>
<groupId>com.netflix.eureka</groupId>
<artifactId>eureka-client</artifactId>
</dependency>
</requiresUnpack>
</configuration>
</plugin>
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