Jersey JSON不適用於最新的Jersey API

Question

我已經通過多個鏈接瞭解瞭如何在使用Jersey創建的RESTful webservice中返回JSON響應。這裏是我的代碼：

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>ScraperWebProject</display-name> 
    <welcome-file-list> 
    <welcome-file>index.jsp</welcome-file> 
    </welcome-file-list> 
    <servlet> 
    <servlet-name>Jersey REST Service</servlet-name> 
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class> 
    <init-param> 
     <param-name>jersey.config.server.provider.packages</param-name> 
     <param-value>com.myscraper</param-value> 
    </init-param> 
    <load-on-startup>1</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
    <servlet-name>Jersey REST Service</servlet-name> 
    <url-pattern>/rest/*</url-pattern> 
    </servlet-mapping> 
</web-app> 

MyScraper.java

package com.myscraper; 
import javax.ws.rs.GET; 
import javax.ws.rs.Path; 
import javax.ws.rs.Produces; 
import javax.ws.rs.core.MediaType; 


@Path("/hello") 
public class MyScraper { 

    @GET 
    @Produces({MediaType.APPLICATION_JSON }) 
    public SearchModel sayJsonHello() { 
     System.out.println("JSON text hello called"); 
     SearchModel s = new SearchModel("My First Search", "My first search is done"); 
     return s; 
    } 

    @GET 
    @Produces({ MediaType.TEXT_XML }) 
    public SearchModel sayPlainTextHello() { 
     System.out.println("Plain text hello called"); 
     SearchModel s = new SearchModel("My First Search", "My first search is done"); 
     return s; 
    } 
} 

SearchModel.java

package com.myscraper; 

import javax.xml.bind.annotation.XmlRootElement; 

@XmlRootElement 
public class SearchModel { 

    private String title; 
    private String description; 

    public SearchModel(){ 

    } 
    public SearchModel(String title,String desc){ 
     this.title = title; 
     this.description= desc; 

    } 

    public String getTitle() { 
     return title; 
    } 
    public void setTitle(String title) { 
     this.title = title; 
    } 
    public String getDescription() { 
     return description; 
    } 
    public void setDescription(String description) { 
     this.description = description; 
    } 

    @Override 
    public String toString() { 
     return "SearchModel [title=" + title + ", desc=" + description + "]"; 
    } 
} 

我不知何故無法得到映射到該請求getJSONHello（）方法。在這個Link發現的解決方案表示使用Jersey JSON，但提供的xml對於最新的Jersey版本無效。它使用com.sun關係屬性，該屬性僅對澤西島的舊版本有效。

Answer 1

<pre>call api by link  /rest/hello/sayJsonHello etc. By Get method because it needs complete path for method sayJsonHello</pre> 




package com.myscraper; 
    import javax.ws.rs.GET; 
    import javax.ws.rs.Path; 
    import javax.ws.rs.Produces; 
    import javax.ws.rs.core.MediaType; 


    @Path("/hello") 
    public class MyScraper { 

     @GET 
    @Path("/sayJsonHello") 
     @Produces({MediaType.APPLICATION_JSON }) 
     public SearchModel sayJsonHello() { 
      System.out.println("JSON text hello called"); 
      SearchModel s = new SearchModel("My First Search", "My first search is done"); 
      return s; 
     } 

     @GET 
    @Path("/sayPlainTextHello") 
     @Produces({ MediaType.TEXT_XML }) 
     public SearchModel sayPlainTextHello() { 
      System.out.println("Plain text hello called"); 
      SearchModel s = new SearchModel("My First Search", "My first search is done"); 
      return s; 
     } 
    } 

Answer 2

您需要添加以下依賴於新澤西州2

<dependency> 
    <groupId>org.glassfish.jersey.media</groupId> 
    <artifactId>jersey-media-json-jackson</artifactId> 
    <version>${jersey2.version}</version> 
</dependency>