Is it possible to send XML
POST
requests with spring
, eg RestTemplate
?
I want to send the following xml to the url localhost:8080/xml/availability
<AvailReq>
<hotelid>123</hotelid>
</AvailReq>
Also do I want to add custom http headers on each request dynamically(!).
How could I achieve this with spring?
First of all, define your HTTP
headers, like following:
HttpHeaders headers = new HttpHeaders();
headers.add("header_name", "header_value");
You can set any HTTP
header with this approach. For well known headers you can use pre-defined methods. For example, in order to set Content-Type
header:
headers.setContentType(MediaType.APPLICATION_XML);
Then define a HttpEntity
or RequestEntity
to prepare your request object:
HttpEntity<String> request = new HttpEntity<String>(body, headers);
If you somehow have access to the XML
string, you can use HttpEntity<String>
. Otherwise you can define a POJO corresponding to that XML
. and finally send the request using postFor...
methods:
ResponseEntity<String> response = restTemplate.postForEntity("http://localhost:8080/xml/availability", request, String.class);
Here i'm POST
ing the request to the http://localhost:8080/xml/availability
endpoint and converting the HTTP
response body into a String
.
Note, that in the above examples new HttpEntity<String>(...)
can be replaced with new HttpEntity<>(...)
using JDK7 and later.
Below you find a complete example how to use a RestTemplate
to exchange XML documents and receive a HTML response:
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import static org.springframework.test.web.client.match.MockRestRequestMatchers.header;
import static org.springframework.test.web.client.match.MockRestRequestMatchers.content;
import static org.springframework.test.web.client.match.MockRestRequestMatchers.method;
import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
import org.junit.Test;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.test.web.client.MockRestServiceServer;
import org.springframework.web.client.RestTemplate;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
public class XmlTest {
@Test
public void test() throws Exception {
RestTemplate restTemplate = new RestTemplate();
MockRestServiceServer mockServer = MockRestServiceServer.createServer(restTemplate);
String htmlString = "<p>response</p>";
String xmlString = "<?xml version=\"1.0\" encoding=\"utf-8\"?><AvailReq><hotelid>123</hotelid></AvailReq>";
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse(new InputSource(new StringReader(xmlString)));
mockServer.expect(requestTo("http://localhost:8080/xml/availability"))
.andExpect(method(HttpMethod.POST))
.andExpect(content().string(is(xmlString)))
.andExpect(header("header", "value"))
.andRespond(withSuccess("<p>response</p>", MediaType.TEXT_HTML));
HttpHeaders headers = new HttpHeaders();
headers.add("header", "value");
HttpEntity<Document> request = new HttpEntity<>(document, headers);
final ResponseEntity<String> response = restTemplate.postForEntity("http://localhost:8080/xml/availability", request, String.class);
assertThat(response.getBody(), is(htmlString));
mockServer.verify();
}
}
Find below for example to use a RestTemplate to exchange XML as String and receive a response:
String xmlString = "<?xml version=\"1.0\" encoding=\"utf-8\"?><AvailReq><hotelid>123</hotelid></AvailReq>";
RestTemplate restTemplate = new RestTemplate();
//Create a list for the message converters
List<HttpMessageConverter<?>> messageConverters = new ArrayList<HttpMessageConverter<?>>();
//Add the String Message converter
messageConverters.add(new StringHttpMessageConverter());
//Add the message converters to the restTemplate
restTemplate.setMessageConverters(messageConverters);
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_XML);
HttpEntity<String> request = new HttpEntity<String>(xmlString, headers);
final ResponseEntity<String> response = restTemplate.postForEntity("http://localhost:8080/xml/availability", request, String.class);
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.