Ajax請求發送成功但不進success的解決方法

$.ajax({
 type : "get",
 data : {'dbId':node.dbId,'viewId':node.id,'date':new Date()},
 url : "${ctp}/ViewOperate/ShowViewSql",
 dataType : "json",
 success : function(data){
 console.log(data);
 layer.alert(data,{
 skin: 'layui-layer-molv'
 });
 }
 error : function(data){
 layer.alert("進入了error方法",{
 skin: 'layui-layer-molv'
 });
 }
});

@RequestMapping(value="/ShowViewSql",method=RequestMethod.GET)
@ResponseBody
public String showCreateViewSql(@RequestParam(value="dbId",required=false)Integer dbId,
 @RequestParam(value="viewId",required=false)Integer viewId) {
 return "abc";
}

$.ajax({
 type : "get",
 data : {'dbId':node.dbId,'viewId':node.id,'date':new Date()},
 url : "${ctp}/ViewOperate/ShowViewSql",
 dataType : "text",
 success : function(data){
 console.log(data);
 layer.alert(data,{
 skin: 'layui-layer-molv'
 });
 }
 error : function(data){
 layer.alert("進入了error方法",{
 skin: 'layui-layer-molv'
 });
 }
});