Question

我已经拥有它。整天我一直忙着尝试用汗布和弹簧部署一个非常简单的休息应用程序。首先是openshift，它只是给了我一个错误，实际上没有告诉我什么，没有理由，没有例外，只是在一个红色框中混乱。

所以我去了heroku。我更喜欢它，因为它让我觉得你可以做得更多......但是，经过8个小时，我没有取得任何成功。

我尝试了一切：java入门，添加buildpacks heroku / java，添加所有不同类型的文件（Procfile，Procfilew.windows，system.properties），然后我尝试了webapp-runner，添加了建议的插件here。到目前为止，这是迄今为止最成功的道路，因为我可以使用该webapp-runner在本地启动我的应用程序（万岁，实际上很顺利）。

然而，无论我尝试什么，当我执行git push heroku master时，我总会得到同样的错误，这是：

Counting objects: 109, done.Delta compression using up to 6 threads.
Compressing objects: 100% (76/76), done.
Writing objects: 100% (109/109), 13.33 KiB | 0 bytes/s, done.
Total 109 (delta 16), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote:
remote:
remote:  !     Push rejected, no Cedar-supported app detected
remote: HINT: This occurs when Heroku cannot detect the buildpack
remote:       to use for this application automatically.
remote: See https://devcenter.heroku.com/articles/buildpacks
remote:
remote: Verifying deploy....
remote:
remote: !       Push rejected to facetdata.
remote:
To https://git.heroku.com/facetdata.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/facetdata.git'

我添加了一个app.json文件（我在java入门应用程序中看到了其中一个），但无济于事。我添加并设置了buildpacks，但无济于事。

我很沮丧，因为我坚信这不应该是那么复杂。

这是我的pom：

<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>be.facet-it.rest.data</groupId>
    <artifactId>DataApi</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>DataApi</name>

    <build>
        <finalName>DataApi</finalName>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
            </resource>
        </resources>
        <testResources>
            <testResource>
                <directory>src/test/resources</directory>
            </testResource>
        </testResources>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.3</version>
                <inherited>true</inherited>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <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>8.0.24.0</version>
                                    <destFileName>webapp-runner.jar</destFileName>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.2.4</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${springversion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${springversion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${springversion}</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-servlet</artifactId>
            <version>${jersey.version}</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-json</artifactId>
            <version>${jersey.version}</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-client</artifactId>
            <version>${jersey.version}</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey.contribs</groupId>
            <artifactId>jersey-spring</artifactId>
            <version>1.8</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-core</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-web</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-beans</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-context</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.ext</groupId>
            <artifactId>jersey-mvc-jsp</artifactId>
            <version>2.3.1</version>
            <exclusions>
                <exclusion>
                    <artifactId>javax.ws.rs-api</artifactId>
                    <groupId>javax.ws.rs</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.0</version>
        </dependency>            
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.8.2</version>
            <scope>test</scope>
        </dependency>
    </dependencies>


    <properties>
        <jersey.version>1.19</jersey.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <springversion>4.2.4.RELEASE</springversion>
        <netbeans.hint.deploy.server>Tomcat</netbeans.hint.deploy.server>
    </properties>
</project>

这是我的web.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">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:context/data-api-context.xml</param-value>
    </context-param>
    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>        
    </listener>

    <filter>
        <filter-name>jersey</filter-name>
        <filter-class>com.sun.jersey.spi.spring.container.servlet.SpringServlet</filter-class>
        <init-param>
            <param-name>com.sun.jersey.config.property.packages</param-name>
            <param-value>be.facetit.rest.data.dataapi</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>jersey</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

你可以看到，非常简单。当我将它部署在本地tomcat上时，该应用程序可以正常运行，它也可以使用webapp-runner在本地运行。为了将它部署到heroku上，我没有看到什么？

谢谢！

Answer 1

此错误：

remote:  !     Push rejected, no Cedar-supported app detected
remote: HINT: This occurs when Heroku cannot detect the buildpack
remote:       to use for this application automatically.
remote: See https://devcenter.heroku.com/articles/buildpacks

意味着Heroku无法找到您的pom.xml。需要将其检入Git（您可以使用git ls-files进行确认，它需要位于根目录（顶级Git目录）中。

无法在heroku上部署一个简单的java restfull api

1 个答案: