highChart后台动态获取数据

package com.kenneth.test.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.google.gson.Gson; public class LoadDataServlet extends HttpServlet { private static final long serialVersionUID = 1L; public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=utf-8");// 这条语句指明了向客户端发送的内容格式和采用的字符编码． PrintWriter out = response.getWriter(); // 获取模拟数据list // List<String[]> list = getModelList(); // 获取模拟数据Map Map<String, List<String[]>> map = new HashMap<String, List<String[]>>(); Gson gson = new Gson(); String json = gson.toJson(getModelMap()); out.write(json); out.close(); } // 用于处理客户端发送的POST请求 public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } private List<String[]> getModelList() { List<String[]> list = new ArrayList<String[]>(); for (int i = 0; i < 5; i++) { String[] item = new String[6]; for (int j = 0; j < item.length; j++) { item[j] = Math.random() * 100 + ""; } list.add(item); } return list; } private Map<String, Map<String,Object>> getModelMap() { Map<String, Map<String,Object>> map = new HashMap<String, Map<String,Object>>(); for (int i = 0; i < 5; i++) { Map<String,Object> obj = new HashMap<String,Object>(); String[] item = new String[6]; for (int j = 0; j < item.length; j++) { item[j] = Math.random() * 100 + ""; } obj.put("data", item); obj.put("name", "类别"+i); map.put(i+"", obj); } return map; } }