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POJersey client: How to add a list as query parameter
 

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  1. POJersey client: How to add a list as query parameter
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    <p>I'm creating a Jersey client for a GET service that has a List as query parameter. According to the <a href="http://jersey.java.net/nonav/documentation/latest/user-guide.html#d4e247">documentation</a>, it's possible to have a List as a query parameter (this information is also at <a href="http://jsr311.java.net/nonav/releases/1.1/javax/ws/rs/QueryParam.html">@QueryParam</a> javadoc), check it out: </p> <blockquote> <p>In general the Java type of the method parameter may:</p> <ol> <li>Be a primitive type;</li> <li>Have a constructor that accepts a single String argument;</li> <li>Have a static method named valueOf or fromString that accepts a single String argument (see, for example, Integer.valueOf(String) and java.util.UUID.fromString(String)); or</li> <li>Be List, Set or SortedSet, where T satisfies 2 or 3 above. The resulting collection is read-only.</li> </ol> <p>Sometimes parameters may contain more than one value for the same name. If this is the case then types in 4) may be used to obtain all values.</p> </blockquote> <p>However, I can't figure out how to add a List query parameter using Jersey client. </p> <p>I understand alternative solutions are: </p> <ol> <li>Use POST instead of GET; </li> <li>Transform the List into a JSON string and pass it to the service. </li> </ol> <p>The first one is not good, because the proper HTTP verb for the service is GET. It is a data retrieval operation. </p> <p>The second will be my option if you can't help me out. :)</p> <p>I'm also developing the service, so I may change it as needed. </p> <p>Thanks!</p> <p><strong>Update</strong></p> <p>Client code (using json)</p> <pre><code>Client client = Client.create(); WebResource webResource = client.resource(uri.toString()); SearchWrapper sw = new SearchWrapper(termo, pagina, ordenacao, hits, SEARCH_VIEW, navegadores); MultivaluedMap&lt;String, String&gt; params = new MultivaluedMapImpl(); params.add("user", user.toUpperCase()); params.add("searchWrapperAsJSON", (new Gson()).toJson(sw)); ClientResponse clientResponse = webResource .path("/listar") .queryParams(params) .header(HttpHeaders.AUTHORIZATION, AuthenticationHelper.getBasicAuthHeader()) .get(ClientResponse.class); SearchResultWrapper busca = clientResponse.getEntity(new GenericType&lt;SearchResultWrapper&gt;() {}); </code></pre>
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    1. USPatrick M
    1. USlsborg
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    1. COcan you give jersey client code here...
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      1. POJersey client: How to add a list as query parameter
      1. USYogesh Prajapati
    2. COyogesh, I added the client code.
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      1. USlsborg
    3. COIf i understand your problem statement, you can pass list of values as Query parameter by adding multiple values to same key. If "searchWrapper" is the key and you want to pass multiple values to it: build URL like this : //YourURL?searchWrapper=value1&searchWrapper=value2&searchWrapper=value3 may be you need to insert values multiple times to same key if your MultivaluedMap supports it.
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      1. POJersey client: How to add a list as query parameter
      1. USThamme Gowda
 

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