个人作业——顶会热词进程2.1

学习进度条：

目标任务：

完成多条件查询

预计时间：

1天

完成情况：

完成了功能实现的部分

代码：

servlet.java

package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

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.util.Map;

import bean.HotWord;
import bean.lunwen;
import bean.demBean;
import dao.dao;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

/**
 * Servlet implementation class servlet
 */
@WebServlet("/servlet")
public class servlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    dao dao2=new dao();
    int number;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public servlet() {
        super();
        // TODO Auto-generated constructor stub
    }
   

    public void findlunwen(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException {
        request.setCharacterEncoding("utf-8");
        int tonum=Integer.parseInt(request.getParameter("sum"));
        int realnum=Integer.parseInt(request.getParameter("realsum"));
        List<demBean> findlist=new ArrayList<>();
        demBean dbean=null;
        dbean=new demBean("AND",request.getParameter("tiaojian"),request.getParameter("firinput"),request.getParameter("jingzhun"));
        findlist.add(dbean);
        for(int i=1;i<tonum;i++) {
            if(request.getParameter("input"+i)!=""&&request.getParameter("input"+i)!=null) {
                dbean=new demBean(request.getParameter("lianjie"+i),request.getParameter("tiaojian"+i),request.getParameter("input"+i),request.getParameter("jingdu"+i));
                findlist.add(dbean);
            }
        }
        
        System.out.println(realnum+"����Ϊ"+findlist.size());
        for(int i=0;i<findlist.size();i++) {
            System.out.println(findlist.get(i).toString());
        }
        PrintWriter out = response.getWriter();
        //String name = request.getParameter("name").trim();
        List<lunwen> list = dao2.getselectlunwen(findlist);
        JSONArray json=new JSONArray();
        for(int i=0;i<list.size();i++) {
            JSONObject ob=new JSONObject();
            ob.put("title", list.get(i).getTitle());
            ob.put("zuozhe", list.get(i).getZuozhe());
            ob.put("zhaiyao", list.get(i).getAbstract());
            ob.put("time", list.get(i).getTime());
            ob.put("lianjie", list.get(i).getLink());
            json.add(ob);
        }
        //System.out.println("JSON"+json.toString());
        System.out.println("zongshu"+list.size());
        out.write(json.toString());
        
    }
    //获取要查询的热词数量
    public void getWordNumber(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException{
        int num=Integer.parseInt(request.getParameter("searchword"));
          
        number=num;
        System.out.println(number);
        request.getRequestDispatcher("view.jsp").forward(request, response);
    }
    public void reci(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException {
        request.setCharacterEncoding("utf-8");
        
        Map<String, Integer>sortMap=dao.getrc();
        JSONArray json =new JSONArray();
        int k=0;
        for (Map.Entry<String, Integer> entry : sortMap.entrySet()) 
        {
            JSONObject ob=new JSONObject();
            ob.put("name", entry.getKey());
            ob.put("value", entry.getValue());
            if(!(entry.getKey().equals("for")||entry.getKey().equals("and")||entry.getKey().equals("With")||entry.getKey().equals("of")||entry.getKey().equals("in")||entry.getKey().equals("From")||entry.getKey().equals("A")||entry.getKey().equals("to")||entry.getKey().equals("a")||entry.getKey().equals("the")||entry.getKey().equals("by")))
            {
                json.add(ob);
                k++;
            }
            if(k==number)
                break;
        }
        System.out.println(json.toString());
        
        response.getWriter().write(json.toString());
    }
    public void aja(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException {
         PrintWriter out = response.getWriter();
         String name = request.getParameter("name").trim();
         String type="-1";
         try {
             response.setCharacterEncoding("UTF-8");
             response.setContentType("application/json; charset=utf-8");
//             out.println("Success---llll");
             out.append(type);
             out.close();
         } catch (Exception e){
             e.printStackTrace();
         }
         
     
    }
    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        request.setCharacterEncoding("utf-8");
        String method=request.getParameter("method");
        if(method.equals("findlunwen")) {
             try {
                 findlunwen(request,response);
         } catch (ServletException e) {
                 e.printStackTrace();
         } catch (IOException e) {
                 e.printStackTrace();
         } catch (SQLException e) {
             e.printStackTrace();
     }
             
        }
        else if(method.equals("aja")) {
            try {
                aja(request,response);
        } catch (ServletException e) {
                e.printStackTrace();
        } catch (IOException e) {
                e.printStackTrace();
        } catch (SQLException e) {
                e.printStackTrace();
        }
        }
        else if(method.equals("reci")) {
            try {
                reci(request,response);
        } catch (ServletException e) {
                e.printStackTrace();
        } catch (IOException e) {
                e.printStackTrace();
        } catch (SQLException e) {
                e.printStackTrace();
        }
        }else  if ("getWordNumber".equals(method)) {
            try {
                getWordNumber(request, response);
            } catch (SQLException e) {
                // TODO 自动生成的 catch 块
                e.printStackTrace();
            }
        }
        
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
         /*String method = request.getParameter("method");
            
            if ("getWordNumber".equals(method)) {
                try {
                    getWordNumber(request, response);
                } catch (SQLException e) {
                    // TODO 自动生成的 catch 块
                    e.printStackTrace();
                }
            }*/
    }

}

遇到问题：

无