How to use getJSON() to asynchronously request the server to return json format data implementation code

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We can use the getJSON() method of jquery to request the server to return json format data:

js code:

function test(){
    $.getJSON("JsonServlet",function(result){
      alert(result.name);
    });
  }

Server-side servlet response:

@Override
  protected void doPost(HttpServletRequest req, HttpServletResponse resp)
      throws ServletException, IOException {
    String person="{\"name\":\"zhangsan\",\"sex\":\"man\",\"age\":\"23\"}";
    resp.getWriter().print(person);
  }

Note: json dataAttributesNames and character values ​​must be in double quotes

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