带 Jetty 的 Sparkjava returns 404

Question

我正在尝试运行在码头上使用 spark java angularjs 编写的单页 Web 应用程序，该项目是作为 Maven 项目在 eclipse kepler 中编写的。当我进入 url http://localhost:8085/ 时收到的错误如下，无论我尝试访问任何其他 url 还是直接指向索引都没有关系。 html/jsp 仍然得到同样的错误。

HTTP 错误 404 访问 / 时出现问题。原因：未找到由 Jetty 提供支持://

Eclipse 控制台显示服务器已启动并且运行正在

== Spark has ignited ... Listening on localhost:8085 [Thread-2] INFO org.eclipse.jetty.server.Server - jetty-9.0.2.v20130417 [Thread-2] INFO org.eclipse.jetty.server.ServerConnector - Started ServerConnector@12ee37d9{HTTP/1.1}{localhost:8085}

添加了 Package Explorer 以备不时之需。

我将添加一些文件代码，如果需要移动，请告诉我，我会编辑以添加它们。

pom.xml

    <?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>todoapp</groupId>
    <artifactId>todoapp1</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.sparkjava</groupId>
            <artifactId>spark-core</artifactId>
            <version>2.0.0</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>org.mongodb</groupId>
            <artifactId>mongo-java-driver</artifactId>
            <version>2.11.3</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.2.4</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>9.0.2.v20130417</version>
                <configuration>
                    <webApp>
                        <contextPath>/public</contextPath>
                    </webApp>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.3</version>
                <configuration>
                    <createDependencyReducedPom>true</createDependencyReducedPom>
                    <filters>
                        <filter>
                            <artifact>*:*</artifact>
                            <excludes>
                                <exclude>META-INF/*.SF</exclude>
                                <exclude>META-INF/*.DSA</exclude>
                                <exclude>META-INF/*.RSA</exclude>
                            </excludes>
                        </filter>
                    </filters>
                </configuration>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.todoapp.Bootstrap</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>


</project>

Bootstrap.java

    package com.todoapp;

import com.mongodb.*;

import static spark.Spark.setIpAddress;
import static spark.Spark.setPort;
import static spark.SparkBase.staticFileLocation;

public class Bootstrap {
    private static final String IP_ADDRESS = System.getenv("OPENSHIFT_DIY_IP") != null ? System.getenv("OPENSHIFT_DIY_IP") : "localhost";
    private static final int PORT = System.getenv("OPENSHIFT_DIY_IP") != null ? Integer.parseInt(System.getenv("OPENSHIFT_DIY_IP")) : 8085;

    public static void main(String[] args) throws Exception {
        setIpAddress(IP_ADDRESS);
        setPort(PORT);
        staticFileLocation("/public");
        new TodoResource(new TodoService(mongo()));
    }

    private static DB mongo() throws Exception {
        String host = System.getenv("OPENSHIFT_MONGODB_DB_HOST");
        if (host == null) {
            MongoClient mongoClient = new MongoClient("localhost");
            return mongoClient.getDB("todoapp");
        }
        int port = Integer.parseInt(System.getenv("OPENSHIFT_MONGODB_DB_PORT"));
        String dbname = System.getenv("OPENSHIFT_APP_NAME");
        String username = System.getenv("OPENSHIFT_MONGODB_DB_USERNAME");
        String password = System.getenv("OPENSHIFT_MONGODB_DB_PASSWORD");
        MongoClientOptions mongoClientOptions = MongoClientOptions.builder().connectionsPerHost(20).build();
        MongoClient mongoClient = new MongoClient(new ServerAddress(host, port), mongoClientOptions);
        mongoClient.setWriteConcern(WriteConcern.SAFE);
        DB db = mongoClient.getDB(dbname);
        if (db.authenticate(username, password.toCharArray())) {
            return db;
        } else {
            throw new RuntimeException("Not able to authenticate with MongoDB");
        }
    }
}

这 2 个文件负责 jetty 服务器，现在我已经在互联网上研究了一天多，试图找到解决这个错误的方法和原因，但没有任何帮助。

Answer 1

确保您的 /public 目录（您的 html 文件所在的目录）可通过项目的类路径访问。为了对此进行测试，请尝试使用 staticFiles.externalLocation（这适用于 2.5 版，在您的情况下为 externalStaticFileLocation），并将 /public 的完整路径作为参数。如果它有效，您可能会将 /public 目录移动到与 java 包相同的位置，并且它会如您期望的那样与 staticFileLocation("/public") 一起工作。

带 Jetty 的 Sparkjava returns 404

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xml

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angularjs

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