我正在使用jdk 1.9。我想提出一个简单的ReST服务。使用maven原型创建项目:jersey-quickstart-webapp
。然后我继续修改了pom.xml和web.xml。我的maven配置如下所示:
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>restWebService</groupId>
<artifactId>restWebService</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>restWebService</name>
<build>
<finalName>restWebService</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<inherited>true</inherited>
<configuration>
<source>9</source>
<target>9</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.0.0.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-client -->
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-client</artifactId>
<version>1.19.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-bundle -->
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-bundle</artifactId>
<version>1.19.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-server -->
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-server</artifactId>
<version>1.19.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-core -->
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-core</artifactId>
<version>1.19.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/asm/asm -->
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm</artifactId>
<version>6.0_BETA</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.json/json -->
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20170516</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-impl -->
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.xml/jaxb-api -->
<dependency>
<groupId>javax.xml</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.activation/activation -->
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-json</artifactId>
<version>1.19.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-core -->
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.3.0</version>
</dependency>
</dependencies>
<properties>
<jersey.version>2.16</jersey.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
web.xml看起来像这样:
<?xml version="1.0" encoding="UTF-8"?>
<!-- This web.xml file is not required when using Servlet 3.0 container,
see implementation details http://jersey.java.net/nonav/documentation/latest/jax-rs.html -->
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>restWebService</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/webapi/*</url-pattern>
</servlet-mapping>
</web-app>
当我尝试点击此网址时:http://localhost:8080/webapi/myresource - 我看到以下错误:
HTTP Status 500 – Internal Server Error
Type Exception Report
Message Servlet.init() for servlet [Jersey REST Service] threw exception
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
javax.servlet.ServletException: Servlet.init() for servlet [Jersey REST Service] threw exception
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:500)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.base/java.lang.Thread.run(Thread.java:844)
Root Cause
java.lang.IllegalArgumentException
jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:170)
jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:153)
jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:424)
com.sun.jersey.spi.scanning.AnnotationScannerListener.onProcess(AnnotationScannerListener.java:138)
com.sun.jersey.core.spi.scanning.uri.FileSchemeScanner$1.f(FileSchemeScanner.java:86)
com.sun.jersey.core.util.Closing.f(Closing.java:71)
当我将构建配置从1.9更改为1.8
时<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
服务出现没有任何问题,我在浏览器上看到了预期的结果。
我正在使用Intellij,Project SDK - 9,Project Language Level - 9
为了使其适用于1.9,我应该导入哪些罐子?或者我是否需要更改maven配置才能使其正常工作?
编辑:依赖树
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building restWebService 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The artifact javax.xml:jaxb-api:jar:2.1 has been relocated to javax.xml.bind:jaxb-api:jar:2.1
[INFO]
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ restWebService ---
[WARNING] The artifact javax.xml:jaxb-api:jar:2.1 has been relocated to javax.xml.bind:jaxb-api:jar:2.1
[INFO] restWebService:restWebService:war:1.0-SNAPSHOT
[INFO] +- org.springframework:spring-core:jar:5.0.0.RELEASE:compile
[INFO] | \- org.springframework:spring-jcl:jar:5.0.0.RELEASE:compile
[INFO] +- com.sun.jersey:jersey-client:jar:1.19.4:compile
[INFO] +- com.sun.jersey:jersey-bundle:jar:1.19.4:compile
[INFO] | \- javax.ws.rs:jsr311-api:jar:1.1.1:compile
[INFO] +- com.sun.jersey:jersey-server:jar:1.19.4:compile
[INFO] +- com.sun.jersey:jersey-core:jar:1.19.4:compile
[INFO] +- org.ow2.asm:asm:jar:6.0_BETA:compile
[INFO] +- org.json:json:jar:20170516:compile
[INFO] +- com.sun.xml.bind:jaxb-impl:jar:2.3.0:compile
[INFO] +- javax.xml.bind:jaxb-api:jar:2.1:compile
[INFO] | \- javax.xml.stream:stax-api:jar:1.0-2:compile
[INFO] +- javax.activation:activation:jar:1.1.1:compile
[INFO] +- com.sun.jersey:jersey-json:jar:1.19.4:compile
[INFO] | +- org.codehaus.jettison:jettison:jar:1.1:compile
[INFO] | +- org.codehaus.jackson:jackson-core-asl:jar:1.9.2:compile
[INFO] | +- org.codehaus.jackson:jackson-mapper-asl:jar:1.9.2:compile
[INFO] | +- org.codehaus.jackson:jackson-jaxrs:jar:1.9.2:compile
[INFO] | \- org.codehaus.jackson:jackson-xc:jar:1.9.2:compile
[INFO] \- com.sun.xml.bind:jaxb-core:jar:2.3.0:compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.910 s
[INFO] Finished at: 2017-10-14T22:05:15-04:00
[INFO] Final Memory: 13M/44M
[INFO] ------------------------------------------------------------------------
答案 0 :(得分:2)
当前Jersey具有阴影asm 5依赖关系的问题,这与Java 9字节码无关。看起来Jersey 1.x不被Java 9采用,目前还不清楚这种支持是否会出现。作为一个临时解决方案,我创建了一个branch,删除了着色的asm,在代码中迁移了包以使用常规的asm依赖,并将asm 6.0放在maven依赖项中。
您只能在此分支中构建jersey-server和jersey-servlet模块,因为只有这两个模块依赖于asm并在项目中使用这两个自定义工件。
我的项目在这样的替代品上运行良好,但我不能保证它是100%可行的解决方案,我无法在没有失败的情况下构建整个发行版,无法投入时间进行全面采用并检查正确现在。与此同时,泽西岛的主要部分没有问题。
所以,你最后的pom看起来像是:
<!--regular jersey dependencies with the last 1.19.4 version-->
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-server</artifactId>
<version>${custom-jersey-with-asm6.version}</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-servlet</artifactId>
<version>${custom-jersey-with-asm6.version}</version>
</dependency>
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm</artifactId>
<version>6.0</version>
</dependency>
答案 1 :(得分:1)
您可能需要更新很多工件。首先,请检查您的模块mvn dependency:tree
以查找带有版本asm
的{{1}}的任何来源,因为它与Java9不兼容。从当前< 6.0.x
开始,从执行日志中推断,您可以更新
pom.xml
到
<!-- https://mvnrepository.com/artifact/asm/asm -->
<dependency>
<groupId>asm</groupId>
<artifactId>asm</artifactId>
<version>3.3.1</version>
</dependency>
重要的是,请使用Java 9 compatible maven plugins,例如 -
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm</artifactId>
<version>6.0</version>
</dependency>
另一方面,您可能最终仍面临其他一些挑战(我可以看到有冲突的<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<inherited>true</inherited>
<configuration>
<source>9</source>
<target>9</target>
</configuration>
</plugin>
依赖项,甚至jaxb
可能会从asm
传递)以解决您将要解决的问题跑
jersey
并确保在这种情况下排除冲突的依赖关系以使用其更新版本。
答案 2 :(得分:0)
我遇到此错误,就我而言,它与Jersey的版本无关。这是由于一些弹性搜索jar(即elastic-search,elastic-search-core和log4j.2.1.1)是多版本的jar。多版本jar的文件夹名为version,在META-INF内部包含一些构件。我删除了该文件夹,它解决了问题。