在eclipse中运行独立的java可执行文件导致NoClassDefFound [英] running standalone java executable in eclipse results in NoClassDefFound
本文介绍了在eclipse中运行独立的java可执行文件导致NoClassDefFound的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
main（）。它在Eclipse中编译得很好，但是当我尝试以java应用程序运行它时，我得到： 引起：java.lang .ClassNotFoundException：org.glassfish.jersey.client.JerseyClientBuilder
任何人都可以告诉我我在做什么错误？这是我的pom.xml：
< project xmlns =http://maven.apache.org/POM/4.0。 0xmlns：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> ca.ubc.iamwsClient< / groupId>
< artifactId> iamwsClient< / artifactId>
< packaging> jar< / packaging>
< version> 1.0-SNAPSHOT< / version>
< name> iamwsClient< / name>
<属性>
< jersey.version> 2.5.1< /jersey.version>
< target.dir> target< /target.dir>
< project.build.directory> target< /project.build.directory>
< / properties>
< repositories>
< repository>
< id> JBoss Repository< / id>
< url> https：//repository.jboss.org/nexus/content/groups/public< / url>
< / repository>
< / repositories>
<依赖关系>对于pojo / json支持
<！ - jackson依赖项 - >
<依赖关系>
< groupId> org.glassfish.jersey.media< / groupId>
< artifactId> jersey-media-json-jackson< / artifactId>
< version> $ {jersey.version}< / version>
< / dependency>
<依赖关系>
< groupId> org.glassfish.jersey.media< / groupId>
< artifactId> jersey-media-json-processing< / artifactId>
< version> $ {jersey.version}< / version>
< / dependency>
<！ - end jackson deps - >
<依赖关系>
< groupId> junit< / groupId>
< artifactId> junit< / artifactId>
< version> 4.9< / version>
< scope> test< / scope>
< / dependency>
<依赖关系>
< groupId> org.glassfish.jersey.core< / groupId>
< artifactId> jersey-client< / artifactId>
< version> $ {jersey.version}< / version>
< / dependency>
<！ - < dependency> <&的groupId GT; com.sun.jersey< /&的groupId GT; < artifactId的> Jersey的客户机LT; / artifactId的>
< version> 1.8< / version> < /依赖性> - >
<依赖关系>
< groupId> org.glassfish.jersey.connectors< / groupId>
< artifactId> jersey-apache-connector< / artifactId>
< version> $ {jersey.version}< / version>
< / dependency>
<依赖关系>
< groupId> javax.ws.rs< / groupId>
< artifactId> javax.ws.rs-api< / artifactId>
< version> 2.0< / version>
< / dependency>
<！ - < dependency> <&的groupId GT; javax.ws.rs< /&的groupId GT; < artifactId的> JSR311-API< / artifactId的>
< version> 1.1< / version> < /依赖性> - >
< / dependencies>
< build>
< finalName> iamwsClient< / finalName>
< outputDirectory> $ {basedir} / $ {target.dir} / classes< / outputDirectory>
< plugins>
< plugin>
< groupId> org.apache.maven.plugins< / groupId>
< artifactId> maven-compiler-plugin< / artifactId>
< version> 2.5.1< / version>
< inherited> true< / inherited>
< configuration>
< source> 1.7< / source>
< target> 1.7< / target>
< / configuration>
< / plugin>
< plugin>
< groupId> org.apache.maven.plugins< / groupId>
< artifactId> maven-dependency-plugin< / artifactId>
<执行>
< execution>
< id> copy-dependencies< / id>
< phase> prepare-package< / phase>
< goals>
< goal> copy-dependencies< / goal>
< / goals>
< configuration>
< outputDirectory> $ {project.build.directory} / classes / lib< / outputDirectory>
< overWriteReleases> false< / overWriteReleases>
< overWriteSnapshots> false< / overWriteSnapshots>
< overWriteIfNewer> true< / overWriteIfNewer>
< / configuration>
< / execution>
< / executions>
< / plugin>
< plugin>
< groupId> org.eclipse.m2e< / groupId>
< artifactId>生命周期映射< / artifactId>
< configuration>
< lifecycleMappingMetadata>
< pluginExecutions>
<！ - 拷贝依赖插件 - >
< pluginExecution>
< pluginExecutionFilter>
< groupId> org.apache.maven.plugins< / groupId>
< artifactId> maven-dependency-plugin< / artifactId>
< versionRange> [0.0，）< / versionRange>
< goals>
< goal> copy-dependencies< / goal>
< / goals>
< / pluginExecutionFilter>
< action>
< ignore />
< / action>
< / pluginExecution>
< / pluginExecutions>
< / lifecycleMappingMetadata>
< / configuration>
< / plugin>
<！ - < plugin>
< groupId> org.codehaus.mojo< / groupId>
< artifactId> exec-maven-plugin< / artifactId>
< version> 1.2.1< / version>
<执行>
< execution>
< goals>
< goal> java< / goal>
< / goals>
< / execution>
< / executions>
< configuration>
< mainClass> ca.ubc.iamwsClient.IamwsClient< / mainClass>
< / configuration>
< / plugin> - >
< plugin>
< artifactId> maven-assembly-plugin< / artifactId>
< configuration>
< archive>
< manifest>
< mainClass> ca.ubc.iamwsClient.IamwsClient< / mainClass>
< / manifest>
< / archive>
< descriptorRefs>
< descriptorRef> jar-with-dependencies< / descriptorRef>
< / descriptorRefs>
< / configuration>
< / plugin>
< / plugins>
< pluginManagement>
< plugins>
<！ - 此插件的配置用于仅存储Eclipse m2e设置
。它对Maven构建本身没有影响。 - >
< plugin>
< groupId> org.eclipse.m2e< / groupId>
< artifactId>生命周期映射< / artifactId>
< version> 1.0.0< / version>
< configuration>
< lifecycleMappingMetadata>
< pluginExecutions>
< pluginExecution>
< pluginExecutionFilter>
< groupId>
org.apache.maven.plugins
< / groupId>
< artifactId>
maven-dependency-plugin
< / artifactId>
< versionRange>
[2.1，）
< / versionRange>
< goals>
< goal>
copy-dependencies
< / goal>
< / goals>
< / pluginExecutionFilter>
< action>
< ignore>< / ignore>
< / action>
< / pluginExecution>
< / pluginExecutions>
< / lifecycleMappingMetadata>
< / configuration>
< / plugin>
< / plugins>
< / pluginManagement>
< / build>
< / project>
我要运行的客户端：
包ca.ubc.iamwsClient;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.glassfish.jersey.jackson.JacksonFeature;
import ca.ubc.iamwsClient.json.CreateEmployeeBean;
import ca.ubc.iamwsClient.json.CreateEmployeeResponseBean;
/ **
*主类。
*
* /
public class IamwsClient {
private WebTarget getTarget（String targetUrl）throws异常{
//创建客户端
客户端c = ClientBuilder.newClient（）。register（JacksonFeature.class）;
return c.target（targetUrl）;
}
public CreateEmployeeResponseBean sendCreateEmployeeRequest（CreateEmployeeBean createBean，String url）{
CreateEmployeeResponseBean rb = null;
try {
WebTarget target = getTarget（url）;
WebTarget wt = target.path（employeeAutoCreate）;
WebTarget generateTarget = wt.path（generate）;
rb = generateTarget.request（MediaType.APPLICATION_JSON_TYPE）.post（Entity.entity（createBean，MediaType.APPLICATION_FORM_URLENCODED_TYPE），
CreateEmployeeResponseBean.class）;
System.out.println（CreateEmployee：generate response：success =+ rb.getSuccess（）+message =+ rb.getMessage（））;
} catch（Throwable t）{
t.printStackTrace（）;
System.out.println（********* EXCEPTION THROWN：+ t.getMessage（））;
}
return rb;
}
public static void main（String [] args）{
String testUrl =http：// localhost：9090 / iamws;
CreateEmployeeBean bean = new CreateEmployeeBean（）;
// ...在bean上设置一些细节....
IamwsClient client = new IamwsClient（）;
CreateEmployeeResponseBean response = client.sendCreateEmployeeRequest（bean，testUrl）;
if（response！= null）{
System.out.println（********* server has with flag：+ response.getSuccess（）+消息：+ response.getMessage（））;
}
}
}
解决方案
您需要确保包含 org.glassfish.jersey.client.JerseyClientBuilder 类的JAR依赖项在运行期间在应用程序的类路径中可用时间。对于 NoClassDefFound 错误，真的没有其他解释。
从我可以在这个类上的google，它应该是可用的在
<依赖关系>
< groupId> org.glassfish.jersey.core< / groupId>
< artifactId> jersey-client< / artifactId>
< version> 2.0-m04< / version>
< / dependency>
换句话说，你的 com.sun.jersey 依赖可能会丢失。
编辑
这是实际的答案OP后加上问题：
< jersey.version> 2.5.1< /jersey.version>
<依赖关系>
< groupId> org.glassfish.jersey.media< / groupId>
< artifactId> jersey-media-json-processing< / artifactId>
< version> $ {jersey.version}< / version>
< / dependency>
<依赖关系>
< groupId> javax.ws.rs< / groupId>
< artifactId> javax.ws.rs-api< / artifactId>
< version> 2.0< / version>
< / dependency>
他已经有$ code> org.glassfish.jersey.core 和 org.glassfish.jersey.connectors 。他删除了 com.sun.jersey 依赖关系。
我将尽快尝试这个。
Hi I've got a basic Jersey Client that I'm trying to run with a main() in my "main" java class. It compiles fine in Eclipse, but when I try to run it as java application, I get:
Caused by: java.lang.ClassNotFoundException: org.glassfish.jersey.client.JerseyClientBuilder
Can anyone tell me what I'm doing wrong? Here's my pom.xml:
<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>ca.ubc.iamwsClient</groupId>
<artifactId>iamwsClient</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>iamwsClient</name>
<properties>
<jersey.version>2.5.1</jersey.version>
<target.dir>target</target.dir>
<project.build.directory>target</project.build.directory>
</properties>
<repositories>
<repository>
<id>JBoss Repository</id>
<url>https://repository.jboss.org/nexus/content/groups/public</url>
</repository>
</repositories>
<dependencies>
<!-- jackson dependencies for pojo/json support -->
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-processing</artifactId>
<version>${jersey.version}</version>
</dependency>
<!-- end jackson deps -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>${jersey.version}</version>
</dependency>
<!-- <dependency> <groupId>com.sun.jersey</groupId> <artifactId>jersey-client</artifactId>
<version>1.8</version> </dependency> -->
<dependency>
<groupId>org.glassfish.jersey.connectors</groupId>
<artifactId>jersey-apache-connector</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0</version>
</dependency>
<!-- <dependency> <groupId>javax.ws.rs</groupId> <artifactId>jsr311-api</artifactId>
<version>1.1</version> </dependency> -->
</dependencies>
<build>
<finalName>iamwsClient</finalName>
<outputDirectory>${basedir}/${target.dir}/classes</outputDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<inherited>true</inherited>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/classes/lib</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<!-- copy-dependency plugin -->
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<versionRange>[0.0,)</versionRange>
<goals>
<goal>copy-dependencies</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
<!-- <plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>ca.ubc.iamwsClient.IamwsClient</mainClass>
</configuration>
</plugin> -->
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>ca.ubc.iamwsClient.IamwsClient</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!--This plugin's configuration is used to store Eclipse m2e settings
only. It has no influence on the Maven build itself. -->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>
org.apache.maven.plugins
</groupId>
<artifactId>
maven-dependency-plugin
</artifactId>
<versionRange>
[2.1,)
</versionRange>
<goals>
<goal>
copy-dependencies
</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore></ignore>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
Client that I'm trying to run:
package ca.ubc.iamwsClient;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.glassfish.jersey.jackson.JacksonFeature;
import ca.ubc.iamwsClient.json.CreateEmployeeBean;
import ca.ubc.iamwsClient.json.CreateEmployeeResponseBean;
/**
* Main class.
*
*/
public class IamwsClient {
private WebTarget getTarget(String targetUrl) throws Exception {
// create the client
Client c = ClientBuilder.newClient().register(JacksonFeature.class);
return c.target(targetUrl);
}
public CreateEmployeeResponseBean sendCreateEmployeeRequest(CreateEmployeeBean createBean, String url) {
CreateEmployeeResponseBean rb = null;
try {
WebTarget target = getTarget(url);
WebTarget wt = target.path("employeeAutoCreate");
WebTarget generateTarget = wt.path("generate");
rb = generateTarget.request(MediaType.APPLICATION_JSON_TYPE).post(Entity.entity(createBean,MediaType.APPLICATION_FORM_URLENCODED_TYPE),
CreateEmployeeResponseBean.class);
System.out.println("CreateEmployee: generate response: success=" + rb.getSuccess() + " message=" + rb.getMessage());
} catch (Throwable t) {
t.printStackTrace();
System.out.println("*********EXCEPTION THROWN: " + t.getMessage());
}
return rb;
}
public static void main(String[] args) {
String testUrl="http://localhost:9090/iamws";
CreateEmployeeBean bean = new CreateEmployeeBean();
// ... set some details on bean....
IamwsClient client = new IamwsClient();
CreateEmployeeResponseBean response = client.sendCreateEmployeeRequest(bean, testUrl);
if (response != null) {
System.out.println("*********server responded with flag: " + response.getSuccess() + " message: " + response.getMessage());
}
}
}
解决方案
You need to make sure that the JAR dependency containing org.glassfish.jersey.client.JerseyClientBuilder class is available on your application's classpath during the run time. There's really no other explanation to NoClassDefFound error.
From what I can google on this class, it should be available in
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>2.0-m04</version>
</dependency>
In other words your com.sun.jersey dependency may be missing it.
EDIT
This is the actual answer which the OP added to the Question afterwards:
<jersey.version>2.5.1</jersey.version>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-processing</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0</version>
</dependency>
He already had org.glassfish.jersey.core and org.glassfish.jersey.connectors. He removed com.sun.jersey dependency.
I am going to try this myself shortly.
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