宁静与maven有404找不到错误

Question

我已经尝试了非常简单的restful教程与javax.ws和我有问题与maven依赖。 web.xml文件如下正在添加：

<?xml version="1.0" encoding="UTF-8"?> 
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> 
<servlet> 
    <servlet-name>jersey-servlet</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>service</param-value> 
    </init-param> 
    <load-on-startup>1</load-on-startup> 
</servlet> 
<servlet-mapping> 
    <servlet-name>jersey-servlet</servlet-name> 
    <url-pattern>/*</url-pattern> 
</servlet-mapping> 
</web-app> 

和Maven依赖这样的：

<?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>groupId</groupId> 
<artifactId>untitled40</artifactId> 
<version>1.0-SNAPSHOT</version> 
<dependencies> 
    <dependency> 
     <groupId>javax.ws.rs</groupId> 
     <artifactId>javax.ws.rs-api</artifactId> 
     <version>2.0</version> 
    </dependency> 
    <dependency> 
     <groupId>com.sun.jersey</groupId> 
     <artifactId>jersey-server</artifactId> 
     <version>1.2</version> 
    </dependency> 
</dependencies> 
</project> 

和类是：

package service; 

import javax.ws.rs.*; 
@Path("hesab") 
public class App { 

@Path("textc") 
@GET 
@Produces("text/plain") 
public String recit(){ 
    return "got it"; 
} 
} 

，问题是，当我添加JAR文件到在WEB-INF中的lib文件夹它将工作并连接到我的服务，但是当我尝试添加Maven依赖项和删除lib文件夹时，它不起作用！你能告诉我问题是什么吗？

Answer 1

我确实有同样的问题。

改变你的javax依赖这一个

<dependency> 
    <groupId>org.glassfish.jersey.core</groupId> 
    <artifactId>jersey-server</artifactId> 
    <version>2.6</version> 
</dependency> 
<dependency> 
    <groupId>org.glassfish.jersey.containers</groupId> 
    <artifactId>jersey-container-servlet</artifactId> 
    <version>2.6</version> 
</dependency> 
<dependency> 
    <groupId>com.fasterxml.jackson.jaxrs</groupId> 
    <artifactId>jackson-jaxrs-json-provider</artifactId> 
    <version>2.4.1</version> 
</dependency> 

，并创建该类

package ***.services; 

import java.util.HashSet; 
import java.util.Set; 

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

import ***UsuarioResource; 

/** 
* The Class PortalAppConfiguration. 
*/ 
@ApplicationPath("api") 
public class ApiConfiguration extends Application { 

    @Override 
     public Set<Class<?>> getClasses() 
     { 
      final Set<Class<?>> classes = new HashSet<>(); 
      classes.add(UsuarioResource.class);//your resource 

      return classes; 
     } 

} 

让你的web.xml这样的，因为在这个新的实现，所以不能用

<?xml version="1.0" encoding="UTF-8"?> 
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> 

</web-app>