Ajax无刷新显示数据

package com.chinasoft.ajax_json1.servlet; import com.chinasoft.ajax_json1.pojo.Student; import net.sf.json.JSONArray; import javax.servlet.*; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.List; public class IndexServlet implements Servlet { @Override public void init(ServletConfig servletConfig) throws ServletException { } @Override public ServletConfig getServletConfig() { return null; } @Override public void service(ServletRequest servletRequest, ServletResponse servletResponse) throws ServletException, IOException { HttpServletResponse response=(HttpServletResponse)servletResponse; PrintWriter out=response.getWriter(); List<Student> list=new ArrayList<>(); for(int i=0;i<3;i++){ list.add(new Student(i+1,"admin"+i,i+12)); } // out.println(list); //JSONArray.fromObject(list); out.println(JSONArray.fromObject(list)); } @Override public String getServletInfo() { return null; } @Override public void destroy() { } }