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About Me. Contact Us. Privacy policy. Guest Posts. Secure Hash Algorithms. Best Way to Learn Java. How to Start New Blog. XmlAccessType; import javax. XmlAccessorType; import javax. XmlAttribute; import javax. XmlElement; import javax. I am doing two steps here: Capture the output in string format Unmarshal the model object from xml response package test; import java.
BufferedReader; import java. IOException; import java. InputStreamReader; import java. StringReader; import java. HttpURLConnection; import java. MalformedURLException; import java. URL; import javax. JAXBContext; import javax. JAXBException; import javax. Unmarshaller; import com. Source code download Happy Learning!!
Was this post helpful? Let us know if you liked the post. The Produces annotation is used to specify the MIME media types a resource can produce and send back to the client. The Consumes annotation is used to specify the MIME media types a resource can consume that were sent by the client.
The example could be modified to set the message returned by the getHtml method, as shown in this code example:. The Path annotation identifies the URI path template to which the resource responds and is specified at the class or method level of a resource.
These variables are substituted at runtime in order for a resource to respond to a request based on the substituted URI. For example, look at the following Path annotation:. In this kind of example, a user is prompted to type his or her name, and then a JAX-RS web service configured to respond to requests to this URI path template responds. For example, if the user types the user name "Galileo," the web service responds to the following URL:. To obtain the value of the user name, the PathParam annotation may be used on the method parameter of a request method, as shown in the following code example:.
This variable may be customized by specifying a different regular expression after the variable name. For example, if a user name must consist only of lowercase and uppercase alphanumeric characters, override the default regular expression in the variable definition:.
In this example, the username variable will match only user names that begin with one uppercase or lowercase letter and zero or more alphanumeric characters and the underscore character. If a user name does not match that template, a Not Found response will be sent to the client. In the preceding example, username is the variable name. If a character in the value of a variable would conflict with the reserved characters of a URI, the conflicting character should be substituted with percent encoding.
The following variable names and values are used in the examples:. Within a resource class file, HTTP methods are mapped to Java programming language methods by using the request method designator annotations. The behavior of a resource is determined by which HTTP method the resource is responding to. Creating custom request method designators is outside the scope of this document. Methods decorated with request method designators must return void , a Java programming language type, or a javax.
Response object. Conversion between Java types and an entity body is the responsibility of an entity provider, such as MessageBodyReader or MessageBodyWriter. Methods that need to provide additional metadata with a response should return an instance of the Response class. The ResponseBuilder class provides a convenient way to create a Response instance using a builder pattern.
PUT has well-defined semantics. PUT has very clear semantics for creating and updating a resource. The representation the client sends must be the same representation that is received using a GET, given the same media type.
PUT does not allow a resource to be partially updated, a common mistake when attempting to use the PUT method. A common application pattern is to use POST to create a resource and return a response with a location header whose value is the URI to the newly created resource.
In this pattern, the web service declares the URI for the newly created resource. Entity providers supply mapping services between representations and their associated Java types. If the application needs to supply additional metadata, such as HTTP headers or a different status code, a method can return a Response that wraps the entity and that can be built by using Response. Table shows the standard types that are supported automatically for HTTP request and response entity bodies.
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