title: prevent duplicates while inserting records in RabbitMq
body: <p>Please suggest how to prevent  insert duplicate records in RabbitMQ Queue using java using values.</p>
  
  <p>Example :</p>
  
  <pre><code>{
    "jsonObject" : {
       "code" : "ABC",
       "number" : "123456",
       "Name"  : "Narasimha"
    } 
  }
  </code></pre>
  
  <p>if one record available in RabbitMq . if  try to insert one more record with same code and number it should  not allow to insert RabbitMQ.</p>