java应用百度echarts(项目例子)

import java.io.IOException; import java.util.ArrayList; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.alibaba.fastjson.JSON; public class Echarts extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("哈尔滨"); arrayList.add("北京"); arrayList.add("上海"); String jsonString = JSON.toJSONString(arrayList);//把map转为json数据 ArrayList<Integer> arrayList2 = new ArrayList<Integer>(); arrayList2.add(20); arrayList2.add(50); arrayList2.add(30); String jsonString2 = JSON.toJSONString(arrayList2);//把map转为json数据 request.setAttribute("dizhi", jsonString.toString()); request.setAttribute("shuzi", jsonString2.toString()); System.out.println(jsonString); System.out.println(jsonString2); RequestDispatcher rd = request.getRequestDispatcher("echarts.jsp"); rd.forward(request,response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }