顶会热词统计
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paper.jsp：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>CVPR-2019词云</title>
<link href="./css/bootstrap.css" rel="stylesheet">
<script src="./js/jquery-1.8.3.min.js"></script>
<script src="./js/bootstrap.js"></script>
<script type="text/javascript" src="./js/echarts.min.js"></script>
<script type="text/javascript" src="./js/echarts-wordcloud.js"></script>
</head>
<style>
html, body, #main {
width: 100%;
height: 100%;
margin: 0;
}
</style>
<body>
<div id="main"></div>
<div>
<table class="table" style="font-size:20px">
<tr>
<td>原文链接</td>
</tr>
<c:forEach items="${list}" var="info">
<tr>
<td><a href="${info.paper_url}">${info.paper_title}</a></td>
</tr>
</c:forEach>
</table>
</div>
</body>
<script type="text/javascript">
window.onload = function(){
$.ajax({
url:"PaperServlet?method=Paper",
async : true ,
type : "POST",
dataType : "json",
success : function(data){
var dt;
var mydata = new Array();
dt = data;
for(var i=0;i<dt.length;i++){
var d = {};
d[‘name‘] = dt[i].name;
d[‘value‘] = dt[i].value;
mydata.push(d);
}
var option = {
title:{
text:‘CVPR-2019词云‘,
x:‘center‘,
textStyle:{
fontSize:20
}
},
backgroundColor:‘#F7F7F7‘,
tooltip:{
show:true
},
series: [{
type: ‘wordCloud‘,
gridSize:2,
sizeRange: [20, 50],//画布范围，如果设置太大会出现少词（溢出屏幕）
rotationRange: [-90, 90],//数据翻转范围
shape: ‘circle‘,
drawOutOfBound:false,
textStyle: {
normal: {
color: function() {
return ‘rgb(‘ + [
Math.round(Math.random() * 160),
Math.round(Math.random() * 160),
Math.round(Math.random() * 160)
].join(‘,‘) + ‘)‘;
}
},
emphasis: {
shadowBlur: 10,
shadowColor: ‘#333‘
}
},
data: mydata
}]
};
var chart = echarts.init(document.getElementById(‘main‘));
chart.setOption(option);
chart.on(‘click‘,function(params){
var url = "PaperServlet?method=Search&name="+params.name;
window.location.href = url;
});
},
error : function(){
alert("请求失败");
},
});
}
</script>
</html>
PaperServlet.java
package Servlet;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
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 org.apache.commons.lang3.ArrayUtils;
import com.google.gson.Gson;
import Bean.Paper;
import Bean.Word;
import Dao.Select;
/**
* Servlet implementation class PaperServlet
*/
@WebServlet("/PaperServlet")
public class PaperServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public PaperServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
String method = request.getParameter("method");
if(method.equals("Paper")) {
Paper(request, response);
}else if(method.equals("Search")){
Search(request, response);
}
}
private void Search(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
// TODO Auto-generated method stub
String name=request.getParameter("name");
Select s = new Select();
List<Paper> list = s.listAllWord(name);
request.setAttribute("list",list);
request.getRequestDispatcher("paper.jsp").forward(request, response);
}
private void Paper(HttpServletRequest request, HttpServletResponse response) throws IOException {
// TODO Auto-generated method stub
response.setCharacterEncoding("UTF-8");
Select s = new Select();
List<Paper> paperlist = s.GetPaper();
List<Word> wordlist = new ArrayList<Word>();
String[] names = new String[100000];
for(Paper paper:paperlist) {
String name = paper.getPaper_title();
String[] namestemp = name.split(" ");
names = (String[]) ArrayUtils.addAll(namestemp,names);
}
HashMap<String,Integer> name_value = new HashMap<>();
for(String name:names) {
name_value.put(name,!name_value.containsKey(name)?1:name_value.get(name)+1);
}
for(String name:name_value.keySet()) {
Word word = new Word();
if(name!=null&&(name_value.get(name)>1)&&(name.length()>4)) {
word.setName(name);
word.setValue(name_value.get(name));
wordlist.add(word);
}
}
Gson gson = new Gson();
String json = gson.toJson(wordlist);
response.getWriter().write(json);
}
/**
* @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);
}
}
Select.java
package Dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import Bean.Paper;
import utils.DBUtil;
public class Select {
public List<Paper> GetPaper() {
// TODO Auto-generated method stub
ArrayList<Paper> list = new ArrayList<>();
Connection conn=DBUtil.getConn();
Statement state = null;
String sql="select * from cvpr_2019";
System.out.println(sql);
try {
state = conn.createStatement();
ResultSet rs = state.executeQuery(sql);
while (rs.next()) {
Paper p = new Paper();
p.setId(rs.getInt(1));
p.setPaper_title(rs.getString(2));
p.setPaper_abstract(rs.getString(3));
p.setPaper_url(rs.getString(4));
list.add(p);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
conn.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return list;
}
public List<Paper> listAllWord(String name) {
// TODO Auto-generated method stub
// TODO Auto-generated method stub
ArrayList<Paper> list = new ArrayList<>();
Connection conn=DBUtil.getConn();
Statement state = null;
String sql="select * from cvpr_2019 where title like "+"‘%"+name+"%‘";
System.out.println(sql);
try {
state = conn.createStatement();
ResultSet rs = state.executeQuery(sql);
while (rs.next()) {
Paper p = new Paper();
p.setId(rs.getInt(1));
p.setPaper_title(rs.getString(2));
p.setPaper_abstract(rs.getString(3));
p.setPaper_url(rs.getString(4));
list.add(p);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
conn.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return list;
}
}
paper.java
package Bean;
public class Paper {
private int id;
private String paper_title;
private String paper_abstract;
private String paper_url;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getPaper_title() {
return paper_title;
}
public void setPaper_title(String paper_title) {
this.paper_title = paper_title;
}
public String getPaper_abstract() {
return paper_abstract;
}
public void setPaper_abstract(String paper_abstract) {
this.paper_abstract = paper_abstract;
}
public String getPaper_url() {
return paper_url;
}
public void setPaper_url(String paper_url) {
this.paper_url = paper_url;
}
}
word.java
package Bean;
public class Word {
private String name;
private int value;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getValue() {
return value;
}
public void setValue(int value) {
this.value = value;
}
}
DBUtil.java
package utils;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class DBUtil {
public static String db_url = "jdbc:mysql://localhost:3306/paper?useSSL=false&characterEncoding=UTF-8&serverTimezone=GMT";
public static String db_user = "root";
public static String db_pass = "root";
public static Connection getConn () {
Connection conn = null;
try {
Class.forName("com.mysql.cj.jdbc.Driver");
conn = DriverManager.getConnection(db_url, db_user, db_pass);
} catch (Exception e) {
e.printStackTrace();
}
return conn;
}
public static void close (Statement state, Connection conn) {
if (state != null) {
try {
state.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
public static void close (ResultSet rs, Statement state, Connection conn) {
if (rs != null) {
try {
rs.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (state != null) {
try {
state.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
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