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Java 在Heroku上运行maven项目会导致应用程序错误_Java_Maven_Tomcat_Heroku_Jax Rs - Fatal编程技术网

Java 在Heroku上运行maven项目会导致应用程序错误

Java 在Heroku上运行maven项目会导致应用程序错误,java,maven,tomcat,heroku,jax-rs,Java,Maven,Tomcat,Heroku,Jax Rs,我对Maven和Heroku都是新手。我试图学习RESTfulWeb服务。因此,我在JAX-RS中创建了一个示例web应用程序,并将其部署在Heroku中。当我在本地的Tomcat8上运行它时,示例web应用程序运行得非常完美。然而,当我试图在Heroku上打开相同的web应用程序时,它会给我应用程序错误 这是我在localhost:8080上运行它时得到的结果 但是当我尝试在运行相同的web应用程序时,它会给我以下错误 我很确定我错过了什么,但我不太明白是什么 下面是我的index.jsp

我对Maven和Heroku都是新手。我试图学习RESTfulWeb服务。因此,我在JAX-RS中创建了一个示例web应用程序,并将其部署在Heroku中。当我在本地的Tomcat8上运行它时,示例web应用程序运行得非常完美。然而,当我试图在Heroku上打开相同的web应用程序时,它会给我应用程序错误

这是我在
localhost:8080上运行它时得到的结果

但是当我尝试在运行相同的web应用程序时,它会给我以下错误

我很确定我错过了什么,但我不太明白是什么

下面是我的index.jsp

<html>
<body>
    <h2>Jersey RESTful Web Application!</h2>
    <p><a href="webapi/myresource">Jersey resource</a>
    <p>Visit <a href="http://jersey.java.net">Project Jersey website</a>
    for more information on Jersey!
</body>
</html>
pom.xml

<?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 Web Application</servlet-name>
        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
        <init-param>
            <param-name>jersey.config.server.provider.packages</param-name>
            <param-value>org.auro.self.auromovieshelf</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>Jersey Web Application</servlet-name>
        <url-pattern>/webapi/*</url-pattern>
    </servlet-mapping>
</web-app>
<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>org.auro.self</groupId>
    <artifactId>auromovieshelf</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>auromovieshelf</name>

    <build>
        <finalName>auromovieshelf</finalName>
        <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>com.heroku.sdk</groupId>
                <artifactId>heroku-maven-plugin</artifactId>
                <version>1.0.3</version>
            </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>
        <dependency>
            <groupId>org.glassfish.jersey.containers</groupId>
            <artifactId>jersey-container-servlet-core</artifactId>
            <!-- use the following artifactId if you don't need servlet 2.x compatibility -->
            <!-- artifactId>jersey-container-servlet</artifactId -->
        </dependency>
        <!-- uncomment this to get JSON support
        <dependency>
            <groupId>org.glassfish.jersey.media</groupId>
            <artifactId>jersey-media-moxy</artifactId>
        </dependency>
        -->
    </dependencies>
    <properties>
        <jersey.version>2.23.1</jersey.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
</project>

4.0.0
org.auro.self


谢谢你抽出时间

我自己找到了解决办法。我忘了将
webapprunner
插件添加到我的
pom.xml

这是插件

<build>
    ...
    <plugins>
        ...
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <version>2.3</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals><goal>copy</goal></goals>
                    <configuration>
                        <artifactItems>
                            <artifactItem>
                                <groupId>com.github.jsimone</groupId>
                                <artifactId>webapp-runner</artifactId>
                                <version>8.0.30.2</version>
                                <destFileName>webapp-runner.jar</destFileName>
                            </artifactItem>
                        </artifactItems>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

...
...
org.apache.maven.plugins

服务器的错误日志可以帮助运行
heroku ps:restart
heroku日志-t
并显示输出