Unable to initialize main class, Caused by: java.lang.NoClassDefFoundError: com/mashape/unirest/http/exceptions/UnirestException [JAVA]
Unable to initialize main class, Caused by: java.lang.NoClassDefFoundError: com/mashape/unirest/http/exceptions/UnirestException [JAVA]
问题
在我 运行 在 Eclipse 中使用 Maven 'compile'、'install' 命令创建一个可执行 JAR 并继续 运行 该 JAR 我得到以下错误
Error: Unable to initialize main class org.example.project.StockTracker`
Caused by: java.lang.NoClassDefFoundError: com/mashape/unirest/http/exceptions/UnirestException
我不知道发生了什么。我该如何解决这个问题?下面是一些进一步的细节。我用 main-class 信息更新了 POM,并将 class 路径设置为 'true'。
主要CLASS代码
package org.example.project;
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;
import com.mashape.unirest.http.exceptions.UnirestException;
public class StockTracker {
public static void main (String[] args) throws UnirestException, InterruptedException {
HttpResponse<String> response = Unirest.get("https://apidojo-yahoo-finance-v1.p.rapidapi.com/market/get-quotes?region=US&lang=en&symbols=TSLA")
.header("x-rapidapi-host", "apidojo-yahoo-finance-v1.p.rapidapi.com")
.header("x-rapidapi-key", "api-key")
.asString();
//System.out.println(response.getBody());
System.out.println("response.getBody()");
}
}
UNIREST 异常 CLASS 代码
package com.mashape.unirest.http.exceptions;
public class UnirestException extends Exception {
private static final long serialVersionUID = -3714840499934575734L;
public UnirestException(Exception e) {
super(e);
}
public UnirestException(String msg) {
super(msg);
}
}
JAR 中的清单文件
Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Created-By: Apache Maven 3.6.3
Built-By: Author
Build-Jdk: 13.0.1
Class-Path: unirest-java-1.4.9.jar httpclient-4.5.2.jar httpcore-4.4.4.j
ar commons-logging-1.2.jar commons-codec-1.9.jar httpasyncclient-4.1.1.
jar httpcore-nio-4.4.4.jar httpmime-4.5.2.jar json-20160212.jar
Main-Class: org.example.project.StockTracker
在@IlyaSenko 的帮助下,我设法弄明白了。我需要在我的实际 JAR 中包含我所有的 JAR 依赖项,而不是简单地在我的 POM 文件中声明依赖项。我用下面的内容更新了我的 POM 来实现这个..
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>org.example.project.StockTracker</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
然后使用 Maven“mvn clean compile assembly:single”执行以下命令,将所有 JAR 捆绑到一个可执行 JAR 中。 JAR在那之后工作。
问题
在我 运行 在 Eclipse 中使用 Maven 'compile'、'install' 命令创建一个可执行 JAR 并继续 运行 该 JAR 我得到以下错误
Error: Unable to initialize main class org.example.project.StockTracker`
Caused by: java.lang.NoClassDefFoundError: com/mashape/unirest/http/exceptions/UnirestException
我不知道发生了什么。我该如何解决这个问题?下面是一些进一步的细节。我用 main-class 信息更新了 POM,并将 class 路径设置为 'true'。
主要CLASS代码
package org.example.project;
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;
import com.mashape.unirest.http.exceptions.UnirestException;
public class StockTracker {
public static void main (String[] args) throws UnirestException, InterruptedException {
HttpResponse<String> response = Unirest.get("https://apidojo-yahoo-finance-v1.p.rapidapi.com/market/get-quotes?region=US&lang=en&symbols=TSLA")
.header("x-rapidapi-host", "apidojo-yahoo-finance-v1.p.rapidapi.com")
.header("x-rapidapi-key", "api-key")
.asString();
//System.out.println(response.getBody());
System.out.println("response.getBody()");
}
}
UNIREST 异常 CLASS 代码
package com.mashape.unirest.http.exceptions;
public class UnirestException extends Exception {
private static final long serialVersionUID = -3714840499934575734L;
public UnirestException(Exception e) {
super(e);
}
public UnirestException(String msg) {
super(msg);
}
}
JAR 中的清单文件
Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Created-By: Apache Maven 3.6.3
Built-By: Author
Build-Jdk: 13.0.1
Class-Path: unirest-java-1.4.9.jar httpclient-4.5.2.jar httpcore-4.4.4.j
ar commons-logging-1.2.jar commons-codec-1.9.jar httpasyncclient-4.1.1.
jar httpcore-nio-4.4.4.jar httpmime-4.5.2.jar json-20160212.jar
Main-Class: org.example.project.StockTracker
在@IlyaSenko 的帮助下,我设法弄明白了。我需要在我的实际 JAR 中包含我所有的 JAR 依赖项,而不是简单地在我的 POM 文件中声明依赖项。我用下面的内容更新了我的 POM 来实现这个..
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>org.example.project.StockTracker</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
然后使用 Maven“mvn clean compile assembly:single”执行以下命令,将所有 JAR 捆绑到一个可执行 JAR 中。 JAR在那之后工作。