Spring mvc @ResponseBody jquery ajax调用出现如下错误：406 Not Acceptable

  jQuery.ajax({
	  type: "POST",
	  url: "ajax/ajaxCheckLoginName.do",
	  data: "username="+$("#name").val(),
		  error: function(XMLHttpRequest, error, errorThrown){
		  alert(error);
		  alert(errorThrown);
		  }, 
	  success: function(response){
	 	  if(response==1){ $("#name").removeClass("extra");}
	  }
}); 

controller执行正常，jquery.ajax始终无法执行回调函数

加入错误查看代码：

 error: function(XMLHttpRequest, error, errorThrown){
		  alert(error);
		  alert(errorThrown);
		  },

提示： Not Acceptable

The resource identified by this request is only capable of generating responses with characteristics not acceptable according to the request "accept" headers ().

需要加入jackson依赖：

<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.8.5</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.8.5</version>
</dependency>

实际上报这个错误就是缺少jackson依赖包。

jackson-core-2.4.2.jar

jackson-core-lgpl-1.7.4.jar

jackson-jr-all-2.4.2.jar

jackson-mapper-lgpl-1.7.4.jar

假如这四个包就不会再报Not Acceptable