Question

上下文

我正在尝试使用内置的RESTEasy 3.0.10.Final库创建一个使用JBoss Developer Studio 8.0.0 GA和Wildfly 8.2.0.Final发布JAX-RS Web服务的项目。

现象

当我使用默认设置和web.xml创建创建动态Web项目时，使用下面的两个类添加名为com.example的包，将项目添加到应用程序服务器，当我访问它时，REST服务正常工作使用浏览器（网址：http://localhost:8080/RestTest/rest/resttest/test），按预期显示Hello REST消息。

但是，当我通过右键单击项目并选择配置/转换为Maven项目并使用默认设置（然后从pom.xml中删除与picketbox相关的依赖项）将项目转换为Maven项目时，REST服务发布后无效，并在浏览器中收到Not Found错误消息。

这两个类如下：

COM /示例/ RestApp.java

package com.example;

import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;

@ApplicationPath("/rest")
public class RestApp extends Application
{ }

COM /示例/ RestEndpoint.java

package com.example;

import javax.enterprise.context.RequestScoped;
import javax.ws.rs.GET;
import javax.ws.rs.Path;

@RequestScoped
@Path("/resttest")
public class RestEndpoint
{
    @GET
    @Path("/test")
    public String test()
    {
        return "Hello REST";
    }

}

生成的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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>RestTest</groupId>
  <artifactId>RestTest</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <dependencies>
    <dependency>
      <groupId>org.jboss.spec.javax.security.auth.message</groupId>
      <artifactId>jboss-jaspi-api_1.1_spec</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.security.jacc</groupId>
      <artifactId>jboss-jacc-api_1.5_spec</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.ejb</groupId>
      <artifactId>jboss-ejb-api_3.2_spec</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.hibernate.javax.persistence</groupId>
      <artifactId>hibernate-jpa-2.1-api</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.faces</groupId>
      <artifactId>jboss-jsf-api_2.2_spec</artifactId>
      <version>2.2.8</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.interceptor</groupId>
      <artifactId>jboss-interceptors-api_1.2_spec</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.rmi</groupId>
      <artifactId>jboss-rmi-api_1.0_spec</artifactId>
      <version>1.0.4.Final</version>
    </dependency>
    <dependency>
      <groupId>javax.inject</groupId>
      <artifactId>javax.inject</artifactId>
      <version>1</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.resource</groupId>
      <artifactId>jboss-connector-api_1.7_spec</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.resteasy</groupId>
      <artifactId>jaxrs-api</artifactId>
      <version>3.0.10.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.xml.bind</groupId>
      <artifactId>jboss-jaxb-api_2.2_spec</artifactId>
      <version>1.0.4.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.xml.rpc</groupId>
      <artifactId>jboss-jaxrpc-api_1.1_spec</artifactId>
      <version>1.0.1.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.xml.ws</groupId>
      <artifactId>jboss-jaxws-api_2.2_spec</artifactId>
      <version>2.0.2.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.xml.soap</groupId>
      <artifactId>jboss-saaj-api_1.3_spec</artifactId>
      <version>1.0.3.Final</version>
    </dependency>
    <dependency>
      <groupId>wsdl4j</groupId>
      <artifactId>wsdl4j</artifactId>
      <version>1.6.3</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.jms</groupId>
      <artifactId>jboss-jms-api_2.0_spec</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.management.j2ee</groupId>
      <artifactId>jboss-j2eemgmt-api_1.1_spec</artifactId>
      <version>1.0.1.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.transaction</groupId>
      <artifactId>jboss-transaction-api_1.2_spec</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>javax.jws</groupId>
      <artifactId>jsr181-api</artifactId>
      <version>1.0-MR1</version>
    </dependency>
    <dependency>
      <groupId>com.sun.mail</groupId>
      <artifactId>javax.mail</artifactId>
      <version>1.5.1</version>
    </dependency>
    <dependency>
      <groupId>javax.enterprise</groupId>
      <artifactId>cdi-api</artifactId>
      <version>1.1</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.servlet.jstl</groupId>
      <artifactId>jboss-jstl-api_1.2_spec</artifactId>
      <version>1.1.2.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.servlet.jsp</groupId>
      <artifactId>jboss-jsp-api_2.3_spec</artifactId>
      <version>1.0.1.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.servlet</groupId>
      <artifactId>jboss-servlet-api_3.1_spec</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>javax.activation</groupId>
      <artifactId>activation</artifactId>
      <version>1.1.1</version>
    </dependency>
    <dependency>
      <groupId>javax.validation</groupId>
      <artifactId>validation-api</artifactId>
      <version>1.1.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.annotation</groupId>
      <artifactId>jboss-annotations-api_1.2_spec</artifactId>
      <version>1.0.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.spec.javax.el</groupId>
      <artifactId>jboss-el-api_3.0_spec</artifactId>
      <version>1.0.3.Final</version>
    </dependency>
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-validator</artifactId>
      <version>5.1.3.Final</version>
    </dependency>
    <dependency>
      <groupId>org.wildfly</groupId>
      <artifactId>wildfly-controller-client</artifactId>
      <version>8.2.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss</groupId>
      <artifactId>jboss-dmr</artifactId>
      <version>1.2.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.logging</groupId>
      <artifactId>jboss-logging</artifactId>
      <version>3.1.4.GA</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.resteasy</groupId>
      <artifactId>resteasy-jaxb-provider</artifactId>
      <version>3.0.10.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.resteasy</groupId>
      <artifactId>async-http-servlet-3.0</artifactId>
      <version>3.0.10.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.resteasy</groupId>
      <artifactId>resteasy-client</artifactId>
      <version>3.0.10.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.resteasy</groupId>
      <artifactId>resteasy-jaxrs</artifactId>
      <version>3.0.10.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.resteasy</groupId>
      <artifactId>resteasy-multipart-provider</artifactId>
      <version>3.0.10.Final</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.ejb3</groupId>
      <artifactId>jboss-ejb3-ext-api</artifactId>
      <version>2.1.0</version>
    </dependency>
  </dependencies>
  <build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.1</version>
        <configuration>
          <source>1.7</source>
          <target>1.7</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.4</version>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
          <failOnMissingWebXml>false</failOnMissingWebXml>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

的web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
  <display-name>RestTest</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

问题

转换出了什么问题？如何使用Maven构建项目以使其有效？

Answer 1

我相信你的web.xml缺少resteasy servlet配置。将它与它正在工作的那个相比较，看看是否有任何差异..

编辑：根据http://docs.jboss.org/resteasy/docs/3.0.9.Final/userguide/html_single/index.html#d4e40它可以在不配置web.xml的情况下工作，所以我的答案不正确。

顺便说一句，你的pom有许多依赖关系，应该提供范围（如果我没有弄错的话，应该提供所有这些依赖关系，因为野生动物有它们）。

Answer 2

经过几个小时的工作后，我终于找到了解决方案：如果我删除除了org.jboss.resteasy.jaxrs-api 之外的所有与resteasy相关的依赖项，那么应用程序将会正常工作。

根本不需要web.xml，我删除了它。

工作REST服务所需的最小pom.xml如下所示：

<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>RestTest</groupId>
    <artifactId>RestTest</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <dependencies>
        <dependency>
            <groupId>javax.enterprise</groupId>
            <artifactId>cdi-api</artifactId>
            <version>1.1</version>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>jaxrs-api</artifactId>
            <version>3.0.10.Final</version>
        </dependency>
    </dependencies>
    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <warSourceDirectory>WebContent</warSourceDirectory>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

如何使用Maven构建RESTEasy项目？

上下文

现象

问题

2 个答案: