如何使用球衣客户端从获取响应中获取二进制数据?
How to binary data from a get response using jersey client?
我正在尝试使用球衣客户端进行休息。根据 api 文档,请求 returns 图像作为二进制数据。当我使用 postman 进行其余的 Get 调用时,我可以返回实际图像(im asumming postman 将二进制文件转换回 image/png)。这是邮递员返回的以下headers。
我尝试在 java 中使用 jersey 客户端获取其余的 Get。这是我的代码:
private Client client = ClientBuilder.newClient( new ClientConfig().register(LoggingFilter.class).register(MultiPartFeature.class));
private WebTarget myServer;
myServer= client.target(baseURL);
public void restGetImage(String requestURL, String headers) {
BufferedReader br = null;
StringBuilder sb = new StringBuilder();
String line;
MultivaluedMap<String, Object> userHeaders = storeHeadersInMap(headers);
WebTarget target = getWebTarget().path(requestURL);
Response response = target.request(MediaType.APPLICATION_OCTET_STREAM)
.headers(userHeaders)
.get();
System.out.println("Reuqest URL: " + session.get("baseurl") + requestURL);
int responseCode = response.getStatus();
InputStream inputStream = response.readEntity(InputStream.class);
String contentType = response.getHeaderString("Content-Type");
// br = new BufferedReader(new InputStreamReader(inputStream));
//
// try {
// while((line = br.readLine()) != null) {
// sb.append(line);
// }
//
// br.close(); //close buffered reader
//
// } catch (IOException e) {
// e.printStackTrace();
//
// }
//
// RestResponse data = new RestResponse(responseCode, sb.toString(), contentType);
// data.setResponseHeader(response.getHeaders());
//
// System.out.println("response code: " + responseCode);
// System.out.println("response Content-Type: " + contentType);
// System.out.println("Response body: " + sb.toString());
// return data;
}
请原谅所有评论,因为我仍在测试代码。基本上代码 returns 200 响应状态,但是读取响应时失败。它在 InputStream inputStream = response.readEntity(InputStrean.class) 处抛出异常。
Apr 22, 2016 11:37:29 AM
org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$TerminalReaderIn
terceptor aroundReadFrom
SEVERE: MessageBodyReader not found for media type=image/png, type=class
com.itextpdf.text.pdf.codec.Base64$InputStream, genericType=class
com.itextpdf.text.pdf.codec.Base64$InputStream.
我的目标是能够读取二进制响应数据。任何见解都值得赞赏。谢谢
SEVERE: MessageBodyReader not found for media type=image/png, type=class
com.itextpdf.text.pdf.codec.Base64$InputStream, genericType=class
com.itextpdf.text.pdf.codec.Base64$InputStream.
你用错了InputStream
class。您应该使用 java.io.InputStream
。检查并修复您的导入。
我正在尝试使用球衣客户端进行休息。根据 api 文档,请求 returns 图像作为二进制数据。当我使用 postman 进行其余的 Get 调用时,我可以返回实际图像(im asumming postman 将二进制文件转换回 image/png)。这是邮递员返回的以下headers。
我尝试在 java 中使用 jersey 客户端获取其余的 Get。这是我的代码:
private Client client = ClientBuilder.newClient( new ClientConfig().register(LoggingFilter.class).register(MultiPartFeature.class));
private WebTarget myServer;
myServer= client.target(baseURL);
public void restGetImage(String requestURL, String headers) {
BufferedReader br = null;
StringBuilder sb = new StringBuilder();
String line;
MultivaluedMap<String, Object> userHeaders = storeHeadersInMap(headers);
WebTarget target = getWebTarget().path(requestURL);
Response response = target.request(MediaType.APPLICATION_OCTET_STREAM)
.headers(userHeaders)
.get();
System.out.println("Reuqest URL: " + session.get("baseurl") + requestURL);
int responseCode = response.getStatus();
InputStream inputStream = response.readEntity(InputStream.class);
String contentType = response.getHeaderString("Content-Type");
// br = new BufferedReader(new InputStreamReader(inputStream));
//
// try {
// while((line = br.readLine()) != null) {
// sb.append(line);
// }
//
// br.close(); //close buffered reader
//
// } catch (IOException e) {
// e.printStackTrace();
//
// }
//
// RestResponse data = new RestResponse(responseCode, sb.toString(), contentType);
// data.setResponseHeader(response.getHeaders());
//
// System.out.println("response code: " + responseCode);
// System.out.println("response Content-Type: " + contentType);
// System.out.println("Response body: " + sb.toString());
// return data;
}
请原谅所有评论,因为我仍在测试代码。基本上代码 returns 200 响应状态,但是读取响应时失败。它在 InputStream inputStream = response.readEntity(InputStrean.class) 处抛出异常。
Apr 22, 2016 11:37:29 AM
org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$TerminalReaderIn
terceptor aroundReadFrom
SEVERE: MessageBodyReader not found for media type=image/png, type=class
com.itextpdf.text.pdf.codec.Base64$InputStream, genericType=class
com.itextpdf.text.pdf.codec.Base64$InputStream.
我的目标是能够读取二进制响应数据。任何见解都值得赞赏。谢谢
SEVERE: MessageBodyReader not found for media type=image/png, type=class
com.itextpdf.text.pdf.codec.Base64$InputStream, genericType=class
com.itextpdf.text.pdf.codec.Base64$InputStream.
你用错了InputStream
class。您应该使用 java.io.InputStream
。检查并修复您的导入。