结对开发-热词云统计

getci.java

package ciyun;

import java.io.IOException;
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;

@WebServlet("/getci")
public class getci extends HttpServlet {
    private static final long serialVersionUID = 1L;
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");
        
        List<yun1>list=new ArrayList<yun1>();
        Dao dao=new Dao();
        list=dao.search1();
        if (list!=null) {
            System.out.print("111");
            request.setAttribute("list", list);
            request.getRequestDispatcher("show.jsp").forward(request, response);
        }
        else {
            System.out.print("222");
        }
    }
    
    


    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }

}

yun1.java

package ciyun;

public class yun1 {
    private String  keywords;
    private String href;

    public yun1() {
        super();
        // TODO Auto-generated constructor stub
    }


    public yun1(String keywords,String href) {
        super();
        this.keywords=keywords;
        this.href=href;
        // TODO Auto-generated constructor stub
    }

    
    public String getKeywords() {
        return keywords;
    }


    public void setKeywords(String keywords) {
        this.keywords = keywords;
    }


    public String getHref() {
        return href;
    }


    public void setHref(String href) {
        this.href = href;
    }


    @Override
    public String toString() {
        return "yun1 [keywords=" + keywords + ", href=" + href + "]";
    }



    
}

Dao.java

package ciyun;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import com.mysql.jdbc.Statement;
//import com.sun.org.apache.xpath.internal.operations.And;



public class Dao {

    public List<yun1> search1(){
        int num=0;
        List<yun1>list=new ArrayList<yun1>();
    Connection con=null;
    java.sql.Statement psts=null;
     ResultSet rs=null;
    try {
        con=DBUtils.getCon();
        String sql="select *  from lunwen_table ";
        
        System.out.print(sql);
        psts=con.createStatement();
        rs=psts.executeQuery(sql);
        while(rs.next()){
            //把数据库里面的数值传到界面
            String keywords=rs.getString("keywords");
            String href=rs.getString("href");
             
            yun1 c=new yun1(keywords,href);//通过构造函数进行赋值
             list.add(c);//将赋值的数添加到这个集合中
            
        }
    } catch (SQLException e) {
        e.printStackTrace();
    }
    return list;
}
    public static void main(String[] args) {
        Dao dao=new Dao();
        
    }
}

DBUtils.java

package ciyun;


import java.beans.Statement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;

public class DBUtils {
    private static String mysqlname = "dalaode";
    private static Connection con;
    private static Statement sta;
    private static ResultSet re;
    private static String coursename = "com.mysql.jdbc.Driver";
    private static String url = "jdbc:mysql://localhost:3306/"+mysqlname+"?useSSL=false&characterEncoding=utf8";
    
    //娉ㄥ唽椹卞姩
    public static Connection getCon() {
        try {
            Class.forName(coursename);
            System.out.println("用户名");
        }catch(ClassNotFoundException e) {
            e.printStackTrace();
        }
        try {
            con = DriverManager.getConnection(url,"root","123456");
            System.out.println("连接数据库");
        }catch(Exception e){
            e.printStackTrace();
            con = null;
        }
        return con;
    }
    
    public static void close(Statement sta,Connection connection) {
        if(sta!=null) {
            try {
                ((Connection) sta).close();
            }catch(SQLException e) {
                e.printStackTrace();
            }
        }
        if(connection!=null) {
            try {
                connection.close();
            }catch(SQLException e) {
                e.printStackTrace();
            }
        }
    }
        
    //鍏抽棴杩炴帴
    public static void close(ResultSet re,Statement sta,Connection connection) {
        if(re!=null) {
            try {
                re.close();
            }catch(SQLException e) {
            e.printStackTrace();
            }
        }
        if(sta!=null) {
            try {
                ((Connection) sta).close();
            }catch(SQLException e) {
                e.printStackTrace();
            }
        }
        if(connection!=null) {
            try {
                connection.close();
            }catch(SQLException e) {
                e.printStackTrace();
            }
        }
    }
    public static void main(String[] args)
    {
        getCon();
    }
}

show.jsp

<%@page language="java" contentType="textml; charset=UTF-8" pageEncoding="UTF-8"%>
    <%@page import="java.util.*"%>
    <%@page import="ciyun.yun1"%>
     <%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html>
<html>
<head>
 <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">

<title>热词展示</title>
 <script src="https://cdn.bootcss.com/wordcloud2.js/1.1.0/wordcloud2.js"></script>
    <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
 <%  request.setCharacterEncoding("utf-8");
List <yun1> keywords =(List<yun1>) request.getAttribute("list"); 
List <yun1> href =(List<yun1>) request.getAttribute("list");
String str=" ";

for(yun1 keyword:keywords)
{
str=keyword.getKeywords()+str;
}
String[] lianjie=new String[10000];
int h=0;
for(yun1 href1:href)
{
    
    //lianjie=href1.getHref()+lianjie;
    lianjie[h]= href1.getHref();
    h++;
}
System.out.print(lianjie[0]);


        
String[] words = str.split(" ");  // 非单词的字符来分割，得到所有单词split 方法

Map<String ,Integer> map = new HashMap<String, Integer>() ;

for(String word :words){
    if(map.get(word)==null){  // 若不存在说明是第一次，则加入到map,出现次数为1
        map.put(word,1);
    }else{
        map.put(word,map.get(word)+1);  // 若存在，次数累加1
    }
}

// 排序
List<Map.Entry<String ,Integer>> list = new ArrayList<Map.Entry<String,Integer>>(map.entrySet());
//在java中，如果要对集合对象或数组对象进行排序，需要实现Comparator接口以达到我们想要的目标
Comparator<Map.Entry<String,Integer>> comparator = new Comparator<Map.Entry<String, Integer>>() {
    public int compare(Map.Entry<String, Integer> left, Map.Entry<String, Integer> right) {
        return (left.getValue().compareTo(right.getValue()));
    }
};
// 集合默认升序升序
Collections.sort(list,comparator);
String ten[]=new String[30];
int shu[]=new int[30];
for(int i=0;i<30;i++){// 由高到低输出
    
 ten[i]=list.get(list.size()-i-1).getKey();
 shu[i]=list.get(list.size()-i-1).getValue();
    System.out.println(list.get(list.size()-i-1).getKey() +":"+list.get(list.size()-i-1).getValue());
}
%>

    
 <div id="canvas-container" align="center">
       <canvas id="canvas" width="800px" height="600px"></canvas>
   </div>
   
    <script>
   var options = eval({
        "list": [
            
            
             ['<%=ten[2] %>', <%=shu[2]%>],
             ['<%=ten[3] %>', <%=shu[3]%>],
             ['<%=ten[4] %>', <%=shu[4]%>],
            
             ['<%=ten[6] %>', <%=shu[6]%>],
             ['<%=ten[7] %>', <%=shu[7]%>],
             ['<%=ten[8] %>', <%=shu[8]%>],
             ['<%=ten[9] %>', <%=shu[9]%>],
             
             ['<%=ten[11] %>', <%=shu[11]%>],
            
             ['<%=ten[13] %>', <%=shu[13]%>],
             ['<%=ten[14] %>', <%=shu[14]%>],
             ['<%=ten[15] %>', <%=shu[15]%>],
             ['<%=ten[16] %>', <%=shu[16]%>],
             ['<%=ten[17] %>', <%=shu[17]%>],
             ['<%=ten[18] %>', <%=shu[18]%>],
             ['<%=ten[19] %>', <%=shu[19]%>],
             ['<%=ten[20] %>', <%=shu[20]%>],
             ['<%=ten[21] %>', <%=shu[21]%>],
             ['<%=ten[22] %>', <%=shu[22]%>],
             ['<%=ten[23] %>', <%=shu[23]%>],
             ['<%=ten[25] %>', <%=shu[25]%>],
             ['<%=ten[26] %>', <%=shu[26]%>],
             ['<%=ten[27] %>', <%=shu[27]%>],
             ['<%=ten[28] %>', <%=shu[28]%>],
             ['<%=ten[29] %>', <%=shu[29]%>],
       ],
       
       "gridSize": 13, 
       "weightFactor": 1, 
       "fontWeight": 'normal', 
        "fontFamily": 'Times, serif',
       "color": 'random-light',
       "backgroundColor": '#333', 
        "rotateRatio": 1 
    });
    var canvas = document.getElementById('canvas');
    WordCloud(canvas, options);
</script>

   <div>
   <table>
   <th>论文连接</th>
   <tr>
   <td><a href="<%=lianjie[0] %>"><%=lianjie[0] %></a></td>
   </tr>
   <tr>
   <td><a href="<%=lianjie[20] %>"><%=lianjie[20] %></a></td>
   </tr>
   <tr>
   <td><a href="<%=lianjie[30] %>"><%=lianjie[20] %></a></td>
   </tr>
   <tr>
   <td><a href="<%=lianjie[34] %>"><%=lianjie[20] %></a></td>
   </tr>
   <tr>
   <td><a href="<%=lianjie[36] %>"><%=lianjie[20] %></a></td>
   </tr>
   </table>
   </div>
  
</body>
<html>

运行截图：