title: How to rename the field name in Spring-mongodb when data insert?
body: <p>I using spring mongodb to my project.When I insert the data of this class:</p>
  
  <pre><code>public class Person {
  
      @Id
      private String personId;
  
      private String name;
      private int age;
      private List&lt;String&gt; friends;
      private Date tempValue;
  }
  </code></pre>
  
  <p>It insert to mongodb:</p>
  
  <pre><code>{
    "_id" : ObjectId("543de17f2e631eb39036e60a"),
    "name" : "Johnathan",
    "age" : 73,
    "friends" : ["hh", "hhhh", "hoho"],
    "tempValue" : ISODate("2014-10-15T02:52:47.721Z")
  }
  </code></pre>
  
  <p>I want to change the field name of "tempIntergeValue" to "temp_value",it will be more like database name rule.</p>