CVPR2018关键字生成词云图

一、题目要求

进行分析总结出提到最多的关键字，生成wordCloud词云图展示，并且设置点击后出现对应的论文以及链接

步骤分析：

①爬取CVPR2018的标题，简介，关键字，论文链接 

②将爬取的信息生成wordCloud词云图展示

function echartsCloud(){

$.ajax({
url:"getmax",
type:"POST",
dataType:"JSON",
async:true,
success:function(data)
{
var mydata = new Array(0);

for(var i=0;i {
var d = {

};
d["name"] = data[i].name;//.substring(0, 2);
d["value"] = data[i].value;
mydata.push(d);
}
var myChart = echarts.init(document.getElementById('main'));
//设置点击效果
var ecCOnfig= echarts.config;
myChart.on('click', eConsole);

myChart.setOption({
title: {
text: ''
},
tooltip: {},
series: [{
type : 'wordCloud', //类型为字符云
shape:'smooth', //平滑
gridSize : 8, //网格尺寸
size : ['50%','50%'],
//sizeRange : [ 50, 100 ],
rotationRange : [-45, 0, 45, 90], //旋转范围
textStyle : {
normal : {
fontFamily:'微软雅黑',
color: function() {
return 'rgb(' +
Math.round(Math.random() * 255) +
', ' + Math.round(Math.random() * 255) +
', ' + Math.round(Math.random() * 255) + ')'
}
},
emphasis : {
shadowBlur : 5, //阴影距离
shadowColor : '#333' //阴影颜色
}
},
left: 'center',
top: 'center',
right: null,
bottom: null,
width:'100%',
height:'100%',
data:mydata
}]
});
}
});
}
wordcloud.html

package servlet;
import java.io.IOException;
import java.util.Map;
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 net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import Dao.lunwendao;
/**
* Servlet implementation class getmax
*/
@WebServlet("/getmax")
public class getmax extends HttpServlet {
private static final long serialVersiOnUID= 1L;
lunwendao dao=new lunwendao();
/**
* @see HttpServlet#HttpServlet()
*/
public getmax() {
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
request.setCharacterEncoding("utf-8");
MapsortMap=dao.getallmax();
JSONArray json =new JSONArray();
int k=0;
for (Map.Entry 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==30)
break;
}
System.out.println(json.toString());
response.getWriter().write(json.toString());
}
/**
* @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);
}
}
getmax.java

public Map getallmax()
{
String sql="select * from lunwens";
Mapmap=new HashMap();
Mapsorted=new HashMap();
Connection con=null;
Statement state=null;
ResultSet rs=null;
con=DBUtil.getConn();
try {
state=con.createStatement();
rs=state.executeQuery(sql);
while(rs.next())
{
String keywords=rs.getString("keywords");
String[] split = keywords.split(",");
for(int i=0;i {
if(map.get(split[i])==null)
{
map.put(split[i],0);
}
else
{
map.replace(split[i], map.get(split[i])+1);
}
}
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
DBUtil.close(rs, state, con);
sorted = map
.entrySet()
.stream()
.sorted(Collections.reverseOrder(comparingByValue()))
.collect(
toMap(Map.Entry::getKey, Map.Entry::getValue, (e1, e2) -> e2,
LinkedHashMap::new));
return sorted;
}
lunwendao.java

③设置点击事件，展示对应关键字的论文以及链接

//点击事件
function eConsole(param) {
if (typeof param.seriesIndex == 'undefined') {
return;
}
if (param.type == 'click') {
var word=param.name;
var htmltext="

";
$.post(
'findkeytitle',
{'word':word},
function(result)
{
json=JSON.parse(result);
for(i=0;i {
htmltext+="";
}
htmltext+="

论文题目与链接

"+json[i].Title+"

"
$("#show").html(htmltext);
}
)
}
}
wordcloud.html

package servlet;
import java.io.IOException;
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 com.google.gson.Gson;
import Bean.lunwen;
import java.util.List;
import Dao.lunwendao;
/**
* Servlet implementation class findkeytitle
*/
@WebServlet("/findkeytitle")
public class findkeytitle extends HttpServlet {
private static final long serialVersiOnUID= 1L;
lunwendao dLunwendao=new lunwendao();
/**
* @see HttpServlet#HttpServlet()
*/
public findkeytitle() {
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
request.setCharacterEncoding("utf-8");
String word=request.getParameter("word");
List list=dLunwendao.findtitle(word);
Gson gson = new Gson();
response.setContentType("text/html;charset=utf-8");
String json = gson.toJson(list);
System.out.println(json);
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);
}
}
findkeytitle.java

public List findtitle(String name) {
String sql="select * from lunwens where keywords like '%"+name+"%'";
Connection con=null;
Statement state=null;
ResultSet rs=null;
boolean flag=false;
con=DBUtil.getConn();
lunwen bean=null;
List list=new ArrayList();
try {
state=con.createStatement();
rs=state.executeQuery(sql);
while(rs.next())
{
bean=new lunwen();
bean.setTitle(rs.getString("title"));
bean.setLink(rs.getString("link"));
list.add(bean);
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
DBUtil.close(rs, state, con);
return list;

}
lunwendao.java

package Bean;
import Dao.predao;
public class lunwen {
private String Title;
private String Abstract;
private String Link;
private String keyWords;
public String getTitle() {
return Title;
}
public void setTitle(String title) {
Title = title;
}
public String getAbstract() {
return Abstract;
}
public void setAbstract(String abstract1) {
Abstract = abstract1;
}
public String getLink() {
return Link;
}
public void setLink(String link) {
Link = link;
}
public String getKeyWords() {
return keyWords;
}
public void setKeyWords(String keyWords) {
this.keyWords = keyWords;
}
public lunwen(String title, String abstract1, String link, String keyWords) {
super();
Title = title;
Abstract = abstract1;
Link = link;
this.keyWords = keyWords;
}
public lunwen() {
super();
}
}
lunwen.java

总的wordcloud.html以及运行结果

wordcloud.html