用jersey写 java restfull web services 输出xml格式数据

 1 logic

package com.toic.rest;

import com.toic.model.Folder;

import java.util.logging.Logger;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

@Path("/folders")
public class RESTService {

    private Logger logger = Logger.getLogger(RESTService.class.getName());

    public RESTService() {
        super();
    }
    // 这个 成功  http://localhost:7001/RESTfull001/folders/sayhello/li
    @GET
    @Path("sayhello/{name}")
    @Produces("text/plain")
    public String removeStudent(@PathParam("name") String name) {
        String say = name + " said hello!";
        return say;
    }

     //http://localhost:7001/RESTfull001/folders/guid/000234
    @GET
    @Path("/guid/{folderguid}")
    //@Produces({MediaType.APPLICATION_XML })
    @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
    
    public Folder getFoldersByGUID(@PathParam("folderguid") String folderguid) {

        
//        第一种    
        Folder folder = Folder.makeFolders();
        
        if(!folderguid.equals("0")){
            
            for(int i=0;i<folder.getChildFolders().size();i++){
                
                if(((Folder)folder.getChildFolders().get(i)).getFolderGUID().equals(folderguid)){
                    
                    folder=(Folder)folder.getChildFolders().get(i);
                }
                
            }
            
        }    
        return folder;
        
        
//    第二种    
//        Folder rootFolder = new Folder();        
//        rootFolder.setFolderName("Root Folder");
//        rootFolder.setOwner("juan");
//        rootFolder.setFolderGUID("000234");
//        rootFolder.setFolderType("NATIVE");
//        return rootFolder;
        
        
        ////return Response.status(Response.Status.OK).entity(folder).build();
    }
    
    public static void main(String s[]){
        System.out.println(new RESTService().getFoldersByGUID("00") );
//调用方法

//或者在浏览器输入URL    http://localhost:7001/RESTfull001/folders/guid/000234

//或者下面在java代码中调用

/////////////////////////////////////////////////////////
// //需要导入下面的lib中jar OracleMiddlewareOracle_Homewlserverserverlib
// System.out.println("**** ****");
// Client client = ClientBuilder.newClient().register(JacksonJsonProvider.class);// 注册json 支持
// WebTarget target = client.target(url + "/guid/000234");
// Response response = target.request().get();
// Folder folder = response.readEntity(Folder.class);
// System.out.println(folder.getFolderName()+" "+folder.getFolderGUID()+" "+folder.getFolderType()+" "+folder.getOwner());
// response.close();
//
// //打印
// //**** ****
// // Root Folder 000234 NATIVE juan
/////////////////////////////////////////////////////////

//或者如下调用

//com.sun.jersey.api.client.Client client = com.sun.jersey.api.client.Client .create();

//Folder folder =client.resource(url + "/guid/" + "200234").accept(MediaType.APPLICATION_XML_TYPE).get(Folder.class);

//System.out.println(folder.getFolderGUID()+" "+folder.getFolderName()+" "+folder.getFolderType()+" "+folder.getOwner());
//200234 Folder2 NATIVE xiaolu

     


  
    }
}

2  model

package com.toic.model;
 
import java.util.ArrayList;
import java.util.List;

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement  
public class Folder {
    
    private String folderName;
    
    private String owner;
    
    private String folderGUID;
    
    private String folderType;
    
    private List childFolders = new ArrayList();
    
    
    public Folder() {
        super();
    }
    public String getFolderName() {
        return folderName;
    }
    public void setFolderName(String folderName) {
        this.folderName = folderName;
    }
    public String getOwner() {
        return owner;
    }
    public void setOwner(String owner) {
        this.owner = owner;
    }
    public String getFolderGUID() {
        return folderGUID;
    }
    public void setFolderGUID(String folderGUID) {
        this.folderGUID = folderGUID;
    }
    public String getFolderType() {
        return folderType;
    }
    public void setFolderType(String folderType) {
        this.folderType = folderType;
    }
    public List getChildFolders() {
        return childFolders;
    }
    public void addChildFolder(Folder childFolder) {
        this.childFolders.add(childFolder);
    }
    
    public static Folder makeFolders() {
        
        Folder rootFolder = new Folder();        
        rootFolder.setFolderName("Root Folder");
        rootFolder.setOwner("juan");
        rootFolder.setFolderGUID("000234");
        rootFolder.setFolderType("NATIVE");
        
        Folder childFolder1 = new Folder();
        
        childFolder1.setFolderName("Folder1");
        childFolder1.setOwner("yang");
        childFolder1.setFolderGUID("100234");
        childFolder1.setFolderType("NATIVE");
        
        Folder childFolder2 = new Folder();
        
        childFolder2.setFolderName("Folder2");
        childFolder2.setOwner("xiaolu");
        childFolder2.setFolderGUID("200234");
        childFolder2.setFolderType("NATIVE");
        
        rootFolder.addChildFolder(childFolder1);
        
        rootFolder.addChildFolder(childFolder2);
        
        return rootFolder;
    }
}

3 web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>oracle.eclipse.tools.jsffacet</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>
  
  <servlet>
    <servlet-name>jersey</servlet-name>
    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>jersey</servlet-name>
    <url-pattern>*</url-pattern>
  </servlet-mapping>
</web-app>