五、java操作swift对象存储（官网样例）

系列导航

swift的官方提供了一些java操作swift对象存储的操作方法，但是内容比较简单稍微复杂的没有找到合适的样例，后面我会使用http请求的方式实现

一、jar包

org-json.jar 需要使用maven的同学们自己找到依赖转换一下就可以

二、基础方法

package base;

//官网的操作样例
import org.javaswift.joss.client.core.ContainerPaginationMap;
import org.javaswift.joss.client.factory.AccountConfig;
import org.javaswift.joss.client.factory.AccountFactory;
import org.javaswift.joss.client.factory.AuthenticationMethod;
import org.javaswift.joss.model.Account;
import org.javaswift.joss.model.Container;
import org.javaswift.joss.model.PaginationMap;
import org.javaswift.joss.model.StoredObject;
import java.io.File;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;

public class SwiftClientWork {
    private static final String module = SwiftClientWork.class.getName();

    static String authurl =   "http://192.168.0.1:8080/auth/v1.0";
    static String username =  "admin:admin";
    static String password =  "admin";
   
 
    /**
     * 身份证存储容器
     */
    static Account account ;

    private static SwiftClientWork instance = null;
 
    public static synchronized SwiftClientWork getInstance(){
        if(instance==null){
            instance = new SwiftClientWork();
        }
        return instance;
    }

    static {
        try{
            AccountConfig config = new AccountConfig();
            config.setUsername(username);
            config.setPassword(password);
            config.setAuthUrl(authurl);
 
            config.setAuthenticationMethod(AuthenticationMethod.BASIC);
            account = new AccountFactory(config).createAccount();
        }catch (Exception e){
            e.printStackTrace();
        }
    }

    //给账户设置Temp-Url-Key
    public void setTempUrlKey(String key){
        account.setAndSaveMetadata("Temp-Url-Key", key);
        System.out.println(account.getMetadata());
    }
     
    
    
    /**
     * CREATE A CONTAINER
     * @param containerName
     */
    public void createContainer(String containerName){
        try{
            Container container = account.getContainer(containerName);
            container.create();
        }catch (Exception e){
            e.printStackTrace();
        }
    }

    /**
     * DELETE A CONTAINER
     * @param containerName
     */
    public void deleteContainer(String containerName){
        try{
            Container container = account.getContainer(containerName);
            container.delete();
        }catch (Exception e){
            e.printStackTrace();
        }
    }

    /**
     * CREATE AN OBJECT
     * @param containerName
     * @param objectName
     * @param inFilePath
     */
    public StoredObject createObject(String containerName, String objectName, String inFilePath){
        try{
            /**
             StoredObject object = container.getObject("dog.png");
             object.uploadObject(new File("/dog.png"));
             System.out.println("Public URL: "+object.getPublicURL());
             */
            Container container = account.getContainer(containerName);
            StoredObject object = container.getObject(objectName);
            object.uploadObject(new File(inFilePath));
            /*InputStream input = new FileInputStream(new File(inFilePath));
            object.uploadObject(input);
            input.close();*/

            /*System.out.println("Public URL: "+object.getPublicURL());
            System.out.println("Last modified:  "+object.getLastModified());
            System.out.println("ETag:           "+object.getEtag());
            System.out.println("Content type:   "+object.getContentType());
            System.out.println("Content length: "+object.getContentLength());*/
            return object;
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }

    /**
     *
     * @param containerName
     * @param objectName
     * @param inFile
     * @return
     */
    public StoredObject createObject(String containerName, String objectName, File inFile){
        try{
            /**
             StoredObject object = container.getObject("dog.png");
             object.uploadObject(new File("/dog.png"));
             System.out.println("Public URL: "+object.getPublicURL());
             */
            Container container = account.getContainer(containerName);
            StoredObject object = container.getObject(objectName);
            object.uploadObject(inFile);
            /*InputStream input = new FileInputStream(new File(inFilePath));
            object.uploadObject(input);
            input.close();*/

            /*System.out.println("Public URL: "+object.getPublicURL());
            System.out.println("Last modified:  "+object.getLastModified());
            System.out.println("ETag:           "+object.getEtag());
            System.out.println("Content type:   "+object.getContentType());
            System.out.println("Content length: "+object.getContentLength());*/
            return object;
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }

    /**
     * ADD/UPDATE OBJECT METADATA
     * @param containerName
     * @param objectName
     * @param metadatas
     */
    public void addOrUpdateObjectMetadata(String containerName, String objectName, Map<String, Object> metadatas){
        try{
            Container container = account.getContainer(containerName);
            StoredObject object = container.getObject(objectName);
            Map<String, Object> metadata = new TreeMap<String, Object>();

            for(String key: metadatas.keySet()){
                String value = metadatas.get(key).toString();
                System.out.println("key:"+key+" vlaue:"+value);

                metadata.put(key, value);
            }

            //Map<String, Object> metadata = new TreeMap<String, Object>();
            //metadata.put("key", "value");
            object.setMetadata(metadata);
        }catch (Exception e){
            e.printStackTrace();
        }
    }
    
    
    //上传一个带属性值的对象
    public StoredObject createObjectWithMetadata(String containerName, String objectName, String inFilePath,  Map<String, Object> metadatas){
        try{
            
            Container container = account.getContainer(containerName);
            StoredObject object = container.getObject(objectName);
            object.uploadObject(new File(inFilePath)); 
            
            Map<String, Object> metadata = new TreeMap<String, Object>();
            for(String key: metadatas.keySet()){
                String value = metadatas.get(key).toString();
                System.out.println("key:"+key+" vlaue:"+value);
                metadata.put(key, value);
            }
            object.setMetadata(metadata);
            
            return object;
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }

    /**
     * LIST OWNED CONTAINERS
     */
    public Collection<Container> containerList(){
        try{
            Collection<Container> containers = account.list();
             for (Container currentContainer : containers) {
                System.out.println(currentContainer.getName());
            } 

            return containers;
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }

    /**
     * LIST A CONTAINER’S CONTENT
     * @param containerName
     * @return
     */
    public Collection<StoredObject> containerObjects(String containerName){
        try{
            Container container = account.getContainer(containerName);
            Collection<StoredObject> objects = container.list();
            for (StoredObject currentObject : objects) {
                System.out.println(currentObject.getName());
            }
            
            return objects;
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }
    
    
    /**
     * LIST A CONTAINER’S CONTENT
     * @param containerName
     * @param prefix
     * @param pageSize
     * @return
     */
    public void containerObjectsPage(String containerName,String prefix,int pageSize){
        try{
            Container container = account.getContainer(containerName);
            
            //ContainerPaginationMap(Container container, String prefix, Integer pageSize)
            PaginationMap paginationMap = new ContainerPaginationMap(container,prefix,pageSize);

            //list(PaginationMap paginationMap, int page)
            //Returns a number equal to pageSize of Container elements, starting with the first element after the Container named the same as marker.
            //后面这个参数经过测试不起任何作用
            Collection<StoredObject> objects =container.list(paginationMap,50000);
            
            
            
            for (StoredObject currentObject : objects) {
                System.out.println(currentObject.getName());
            }
            
          
            /*             Iterator iter = container.list(paginationMap,1).iterator();
          while(iter.hasNext()){
                StoredObject object  = (StoredObject)  iter.next();
                String fileName = object.getName();
                System.out.println(fileName);
            }
            */
 
        }catch (Exception e){
            e.printStackTrace();
        }
        
    }

    
    public Map getObjectMetadaTest(String containerName, String objectName) {
        try {
          Container container = account.getContainer(containerName);
          StoredObject object = container.getObject(objectName);
          Map<String, Object> returnedMetadata = object.getMetadata();
//          for (String name : returnedMetadata.keySet()) {
//            System.out.println("META / " + name + ": " + returnedMetadata.get(name));
//          }
          return returnedMetadata;
        } catch (Exception e) {
            System.out.println("该对象没有元数据属性------------->");
            //e.printStackTrace();
        }
        return null;
      }
    
    
    /**
     * RETRIEVE AN OBJECT’S METADATA
     * @param containerName
     * @param objectName
     */
    public void getObjectMetada(String containerName, String objectName){
        try{
            Container container = account.getContainer(containerName);
            StoredObject object = container.getObject(objectName);
            Map<String, Object> returnedMetadata = object.getMetadata();
            for (String name : returnedMetadata.keySet()) {
                System.out.println("META / "+name+": "+returnedMetadata.get(name));
            }
        }catch (Exception e){
            e.printStackTrace();
        } 
    }

    /**
     * RETRIEVE AN OBJECT
     * @param containerName
     * @param objectName
     * @param downPath
     */
    public void getObject(String containerName, String objectName, String downPath){
        try{
            Container container = account.getContainer(containerName);
            StoredObject object = container.getObject(objectName);
            object.downloadObject(new File(downPath));

            /*System.out.println("Public URL: "+object.getPublicURL());
            System.out.println("Last modified:  "+object.getLastModified());
            System.out.println("ETag:           "+object.getEtag());
            System.out.println("Content type:   "+object.getContentType());
            System.out.println("Content length: "+object.getContentLength());*/
        }catch (Exception e){
            e.printStackTrace();
        }
    }

    /**
     * DELETE AN OBJECT
     * @param containerName
     * @param objectName
     */
    public void deleteObject(String containerName, String objectName){
        try{
            Container container = account.getContainer(containerName);
            StoredObject object = container.getObject(objectName);
            object.delete();
        }catch (Exception e){
            e.printStackTrace();
        }
    }
    
    
    
    
    //获取get权限的tempurl 
    //second 有效时间 单位秒
    public void getObjectGetTempUrl(String containerName, String objectName,int second ){
        try{
            
            Container container = account.getContainer(containerName);
             
            
            StoredObject object = container.getObject(objectName);
            String url=object.getTempGetUrl(second);
            
            url = url +"&inline";
            System.out.println(url);    
            
        }catch (Exception e){
            e.printStackTrace();
        }
    }
    
  //获取put权限的tempurl 
    //second 有效时间 单位秒
    public void getObjectPutTempUrl(String containerName, String objectName,int second ){
        try{
            
            Container container = account.getContainer(containerName);
             
            
            StoredObject object = container.getObject(objectName);
            String url=object.getTempPutUrl(second);
            
            url = url +"&inline";
            System.out.println(url);    
            
        }catch (Exception e){
            e.printStackTrace();
        }
    }
   

}

三、调用的主方法

package mian;

import java.io.File;
import java.util.HashMap;
import java.util.Map;

import org.javaswift.joss.model.Container;
import org.javaswift.joss.model.StoredObject;

import base.SwiftClientWork;


//官网操作swift 调用
public class SwiftClientWorkMain {

    /**
     * @param args
     */
    public static void main(String[] args) {
        SwiftClientWork swiftClientWork = new SwiftClientWork();
        
 
        
        //创建容器
        swiftClientWork.createContainer("Container1");
        
        //删除容器
         swiftClientWork.deleteContainer("Container1");
        
        //上传对象（本地文件路径上传）
        swiftClientWork.createObject("Container1", "1.zip", "E://1//1.zip");
        
        //上传对象（本地文件路径上传）
        File file = new File("E://1//1.zip");
        swiftClientWork.createObject("Container1", "2.zip", file);
        
        //给现有的对象增加后者更新属性
         Map<String, Object> map = new HashMap<String, Object>();
         map.put("id", "123123123");
         swiftClientWork.addOrUpdateObjectMetadata(  "Container1","2.zip", map);
        
        //上传一个带属性值的对象
         Map<String, Object> map = new HashMap<String, Object>();
         map.put("id", "123123123");
         swiftClientWork.createObjectWithMetadata("Container1","3.zip", "E://1//1.zip" ,map );
        
        //查看容器列表 
         swiftClientWork.containerList();
        
        //查看容器中的对象列表
          swiftClientWork.containerObjects("containerName1");
        
        
        //对容器中的对象可以进行前缀和返回条数的限制 如下：对象名称前缀为3 且结果值返回5条记录
         swiftClientWork.containerObjectsPage("containerName1","3",5);
        
        
        //查看对象的属性
        swiftClientWork.getObjectMetada("Container1","3.zip");
        
        //下载对象 
         swiftClientWork.getObject(  "Container1","3.zip","E://8.zip");
        
        //删除对象
         swiftClientWork.deleteObject(  "Container1","3.zip");
        
        
        //获取tempurl测试
         swiftClientWork.getObjectTempUrl("bigContainer", "1.jpg",600 );
        
    }


}

原文地址：https://www.cnblogs.com/yclh/p/15061005.html