Maven WebApp中的Jetty SERVICE_UNAVAILABLE與Eclipse中的Jersey JAX-RS

Question

嘗試在Tomcat中運行我的WebApp示例，但未成功我遵循this tutorial以獲得在Eclipse中使用Maven運行的簡單HelloWorld JAX-RS應用程序。不幸的是，當我在瀏覽器中執行mvn jetty:run和開放http://localhost:8088/jersey-demo/hello/我只拿回：

HTTP ERROR: 503 

SERVICE_UNAVAILABLE 
RequestURI=/jersey-demo/hello 

的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>com.ele.api</groupId> 
    <artifactId>server</artifactId> 
    <packaging>war</packaging> 
    <version>0.0.1-SNAPSHOT</version> 
    <name>server Maven Webapp</name> 
    <url>http://maven.apache.org</url> 
    <dependencies> 
    <dependency> 
     <groupId>javax.mail</groupId> 
     <artifactId>mail</artifactId> 
     <version>1.4.1</version> 
     <type>jar</type> 
     <scope>compile</scope> 
    </dependency> 
    <dependency> 
     <groupId>log4j</groupId> 
     <artifactId>log4j</artifactId> 
     <version>1.2.13</version> 
     <type>jar</type> 
     <scope>compile</scope> 
    </dependency> 
    <dependency> 
     <groupId>javax.servlet</groupId> 
     <artifactId>servlet-api</artifactId> 
     <version>2.5</version> 
     <type>jar</type> 
     <scope>compile</scope> 
    </dependency> 
    <dependency> 
     <groupId>org.jsoup</groupId> 
     <artifactId>jsoup</artifactId> 
     <version>1.6.0</version> 
     <type>jar</type> 
     <scope>compile</scope> 
    </dependency> 
    <dependency> 
     <groupId>mysql</groupId> 
     <artifactId>mysql-connector-java</artifactId> 
     <version>5.1.16</version> 
     <type>jar</type> 
     <scope>compile</scope> 
    </dependency> 
    <dependency> 
     <groupId>com.sun.jersey</groupId> 
     <artifactId>jersey-server</artifactId> 
     <version>1.7</version> 
     <type>pom</type> 
     <scope>compile</scope> 
    </dependency> 
    </dependencies> 
    <repositories> 
     <repository> 
     <id>maven2-repository.java.net</id> 
     <name>Java.net Repository for Maven</name> 
     <url>http://download.java.net/maven/2/</url> 
     <layout>default</layout> 
    </repository> 
    <repository> 
     <id>maven-repository.java.net</id> 
     <name>Java.net Maven 1 Repository (legacy)</name> 
     <url>http://download.java.net/maven/1</url> 
     <layout>legacy</layout> 
    </repository> 
    </repositories> 
    <build> 
     <plugins> 
     <plugin> 
     <!-- JETTY 6 PLUGIN --> 
     <groupId>org.mortbay.jetty</groupId> 
     <artifactId>maven-jetty-plugin</artifactId> 
     <version>6.1.14</version> 
     <configuration> 
      <scanIntervalSeconds>10</scanIntervalSeconds> 
      <contextPath>/jersey-demo</contextPath> 
      <connectors> 
       <connector implementation="org.mortbay.jetty.nio.SelectChannelConnector"> 
        <port>8088</port> 
        <maxIdleTime>60000</maxIdleTime> 
       </connector> 
      </connectors> 
      <webApp>${basedir}/target/jersey-demo</webApp> 
      <requestLog implementation="org.mortbay.jetty.NCSARequestLog"> 
       <filename>target/yyyy_mm_dd.request.log</filename> 
       <retainDays>90</retainDays> 
       <append>true</append> 
       <extended>true</extended> 
       <logTimeZone>GMT</logTimeZone> 
      </requestLog> 
     </configuration> 
      </plugin> 
     </plugins> 
    </build> 
</project> 

的web.xml

<?xml version="1.0" encoding="UTF-8"?> 
<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"> 
    <display-name>Jersey Demo</display-name> 
    <servlet> 
     <servlet-name>ServletAdaptor</servlet-name> 
     <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class> 
     <init-param> 
      <param-name>com.sun.jersey.config.property.packages</param-name> 
      <param-value>com.ele.api</param-value> 
     </init-param> 
     <load-on-startup>1</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>ServletAdaptor</servlet-name> 
     <url-pattern>/*</url-pattern> 
    </servlet-mapping> 
    <session-config> 
     <session-timeout>30</session-timeout> 
    </session-config> 
    <welcome-file-list> 
     <welcome-file>index.jsp</welcome-file> 
    </welcome-file-list> 
</web-app> 

MyServlet。 java中的src/main/resources

package com.ele.api 

import javax.ws.rs.Consumes; 
import javax.ws.rs.FormParam; 
import javax.ws.rs.GET; 
import javax.ws.rs.POST; 
import javax.ws.rs.Path; 
import javax.ws.rs.Produces; 

import org.apache.log4j.Logger; 

/** 
* Jersey Demo 
*/ 
@Path("/hello") 
public class MyServlet { 

    private static final Logger LOGGER = Logger.getLogger(MyServlet.class); 

    /** 
    * 
    * @return 
    */ 
    @GET 
    @Produces("text/plain") 
    public String doGet() { 
     return "hello"; 
    } 

    /** 
    * 
    * @param xml 
    * @return 
    */ 
    @POST 
    @Produces("application/xml") 
    @Consumes({"application/x-www-form-urlencoded", "multipart/form-data"}) 
    public String doPost(@FormParam("xml") String xml) { 
     if(xml == null) { 
      LOGGER.error("Expected 'xml' parameter was not found in the POST"); 
      return null; 
     } 
     return xml; 
    } 

Answer 1

取下工件球衣服務器入門 <type>pom</type> ，它應該工作。

<dependency> 
    <groupId>com.sun.jersey</groupId> 
    <artifactId>jersey-server</artifactId> 
    <version>1.7</version> 
    <scope>compile</scope> 
</dependency> 

Answer 2

在Eclipse中，轉到Windows - >Preferences - >Maven - >User Settings，並確保你有你的.m2目錄下還有點settings.xml文件。

還檢查第二個字段Local Repository有正確的存儲庫地址。