Ajax Bootstarp4 Jackson Jason Serverlet-数据未定义

Question

我正在尝试对servlet进行ajax调用，并在自动建议中显示数据。一切似乎都正常，但JQuery中的数据对象错误“未定义数据”。请找到下面的代码。请你帮助我好吗 ？谢谢！

$(document).ready(function () {

$( "#companyInfo" ).autocomplete({
  source: function( request, response ) {
   console.log("Testing:");
    $.ajax( {
      url: "/pfWaldo/RetrieveCompanyData",
      dataType: "jason",
      data: {                   
        term: request.term
      },         
      success: function( data ) {
      console.log("data: ", data);
       response( response );
      }
    } );
  },

  minLength: 2,
  select: function( event, ui ) {
     console.log( "Selected: " + ui.item.value + " aka " + ui.item.id );
    }
    } );
  } );

Servlet代码：

response.setContentType（“ application / json”）;

    response.setHeader("cache-control", "no-cache");
    ObjectMapper mapper = new ObjectMapper();

    String path = null; 


        try {
            ArrayList<CompanyInfoBO> companyInfoBOList = new ArrayList<CompanyInfoBO>();

            CompanyInfoBO companyInfoBO1 = new CompanyInfoBO("1","11111");
            CompanyInfoBO companyInfoBO2 = new CompanyInfoBO("2","22222");
            CompanyInfoBO companyInfoBO3 = new CompanyInfoBO("3","33333");
            CompanyInfoBO companyInfoBO4 = new CompanyInfoBO("4","44444");
            CompanyInfoBO companyInfoBO5 = new CompanyInfoBO("5","55555");
            CompanyInfoBO companyInfoBO6 = new CompanyInfoBO("6","66666");
            CompanyInfoBO companyInfoBO7 = new CompanyInfoBO("7","77777");

            companyInfoBOList.add(companyInfoBO1);
            companyInfoBOList.add(companyInfoBO2);
            companyInfoBOList.add(companyInfoBO3);
            companyInfoBOList.add(companyInfoBO4);
            companyInfoBOList.add(companyInfoBO5);
            companyInfoBOList.add(companyInfoBO6);
            companyInfoBOList.add(companyInfoBO7);


            path =  "{\"success\": true, \"}";


            String dataJson = mapper.writeValueAsString(companyInfoBOList);        

            response.getOutputStream().print(dataJson);


            //Finally send the jason response                   
            OutputStream out = response.getOutputStream();
            mapper.writeValue(out, dataJson);

在调试模式下显示Jason对象的Servlet代码。