解决openStack API镜像上传问题

一时失言乱红尘 2024-04-18 08:46 69阅读 0赞

1、通过HttpPut调用glance接口/v2/image/\{image\_id\}/file  
2、设置头Content\_Type为application/octet-stream  
3、设置 httpPut.setEntity(new ByteArrayEntity(file.getBytes()));  
4、学习httpClient二进制流上传文件 [https://blog.csdn.net/p312011150/article/details/78064380][https_blog.csdn.net_p312011150_article_details_78064380]  
**HttpClient 3.x**

public class HttpHelper {  
        String m_url;  
        HttpClient m_HttpClient;  
      
        public HttpHelper(String url) {  
            m_url = url;  
            m_HttpClient = new HttpClient();  
        }  
      
        public byte[] post(byte[] bytes, String contentType) throws IOException {  
            PostMethod method = new PostMethod(m_url);  
      
            if ((contentType != null) && (contentType.length() > 0))  
                method.setRequestHeader("Content-type" , contentType);  
            method.setRequestEntity(new ByteArrayRequestEntity(bytes));  
            int HttpCode = m_HttpClient.executeMethod(method);  
            if (HttpCode != HttpStatus.SC_OK)  
                throw new IOException("Invalid HttpStatus: " + HttpCode);  
            InputStream respStream = method.getResponseBodyAsStream();  
            int respBodySize = respStream.available();  
            if (respBodySize <= 0)  
                throw new IOException("Invalid respBodySize: " + respBodySize);  
            byte[] respBuffer = new byte[respBodySize];  
            if (respStream.read(respBuffer) != respBodySize)  
                throw new IOException("Read respBody Error");  
            return respBuffer;  
        }  
      
        public String postXml(String str) throws IOException {  
            byte[] reqBuffer = str.getBytes(Charset.forName("UTF-8"));  
            byte[] respBuffer = post(reqBuffer, "application/xml; charset=UTF-8");  
            String resp = new String(respBuffer, Charset.forName("UTF-8"));  
            return resp;  
        }  
    }

**HttpClient 4.x**

public class HttpHelper {  
        CloseableHttpClient m_HttpClient;  
    
    
    public HttpHelper() {  
        m_HttpClient = HttpClients.createDefault();  
    }  
    
    // send bytes and recv bytes  
    public byte[] post(String url, byte[] bytes, String contentType) throws IOException {  
        HttpPost httpPost = new HttpPost(url);  
        httpPost.setEntity(new ByteArrayEntity(bytes));  
        if (contentType != null)  
            httpPost.setHeader("Content-type", contentType);  
        CloseableHttpResponse httpResponse = m_HttpClient.execute(httpPost);  
        try {  
            HttpEntity entityResponse = httpResponse.getEntity();  
            int contentLength = (int) entityResponse.getContentLength();  
            if (contentLength <= 0)  
                throw new IOException("No response");  
            byte[] respBuffer = new byte[contentLength];  
            if (entityResponse.getContent().read(respBuffer) != respBuffer.length)  
                throw new IOException("Read response buffer error");  
            return respBuffer;  
        } finally {  
            httpResponse.close();  
        }  
    }  
    
    public byte[] post(String url, byte[] bytes) throws IOException {  
        return post(url, bytes, null);  
    }  
    
    public String postXml(String url, String str) throws IOException {  
        byte[] reqBuffer = str.getBytes(Charset.forName("UTF-8"));  
        byte[] respBuffer = post(url, reqBuffer, "application/xml; charset=UTF-8");  
        String resp = new String(respBuffer, Charset.forName("UTF-8"));  
        return resp;  
    }

[https_blog.csdn.net_p312011150_article_details_78064380]: https://blog.csdn.net/p312011150/article/details/78064380