结队作业-地铁查询系统(6)

今天没能展示,主要是因为地铁换乘的功能还没实现,还有些地方需要完善

package Servlet;

import Date.Dao;
import Model.LineModel;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

@WebServlet("/ServletZhan")
public class ServletZhan extends HttpServlet {

Dao da = new Dao();

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

String zhantai = req.getParameter("Zname") ;

 

List<String> data = new ArrayList<>();
//1.定义一个json数组
JSONArray jsonData = new JSONArray();

data = da.selectzhantai(zhantai);

for (int i = 0; i < data.size(); i++) {
//2.定义json对象
JSONObject object = new JSONObject();
String ms = data.get(i);
System.out.println(ms);
object.put("xname", ms);
//3.将所有的json对象存放在json数组jsonData中
jsonData.add(object);
}
//4.返回json数组
resp.setCharacterEncoding("UTF-8");
resp.getWriter().write(jsonData.toString());;

}

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
super.doPost(req, resp);
}
}