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  • 顶会热词统计

    一、要求：

    1、完成论文的题目、摘要、关键词、原文链接四项内容爬取；

    2、存储到本地数据库中；

    3、按照题目、关键词分类统计得到最热的十个领域方向；

    4、热词越多，在热词云中显示的就越大，还要将热词与文章链接，点击热词云中的热词可以找到与之对应的文章题目；

    二、效果：

     

     

    爬取数据：

    from lxml import etree
from pymysql import connect
from jieba.analyse import *
import requests
class CVPR:
    # 保存数据
    def saveContent_list(self,title,zhaiyao,guanjian,lianjie):
        # 打开数据库连接（ip/数据库用户名/登录密码/数据库名）
        con = connect("localhost", "root", "a3685371", "pachong")
        # 使用 cursor() 方法创建一个游标对象 cursor
        cursors = con.cursor()
        # 使用 execute()  方法执行 SQL 查询 返回的是你影响的行数
        row = cursors.execute("insert into CVPR values(%s,%s,%s,%s)", (title,zhaiyao,guanjian,lianjie))
        # 使用 fetchone() 方法获取数据.
        con.commit()
        # 关闭数据库连接（别忘了）
        con.close()
headers = {"User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36"
           }
url = "http://openaccess.thecvf.com/CVPR2019.py"
proxies = {
  "http": "http://211.147.226.4",
  "https": "http://122.200.90.12",
}
cvpr = CVPR()
response = requests.get(url,headers=headers)
html_str = etree.HTML(response.content.decode())
#获得标题
hrefs = html_str.xpath("//div[@id='content']/dl/dt/a/@href")
for href in hrefs:
    href = "http://openaccess.thecvf.com/{0}".format(href)
    response2 = requests.get(href,headers=headers)
    html_str = etree.HTML(response2.content.decode())
    lunwens = {}
    title = html_str.xpath("//div[@id='content']/dl/dd//div[@id='papertitle']/text()")
    lianjie = html_str.xpath("//div[@id='content']/dl/dd//a/@href")
    zhaiyao = html_str.xpath("//div[@id='content']/dl/dd//div[@id='abstract']/text()")
    for keyword, weight in extract_tags(zhaiyao[0].strip(), topK=5, withWeight=True):
        
    try:
        cvpr.saveContent_list(title,zhaiyao,keyword,lianjie)
        print("存入成功")
    except:
        print("存入失败")

    使用echarts图表生成热词图：

    <%@ 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>Insert title here</title>
<link rel="stylesheet" href="css/bootstrap.min.css" type="text/css" />
<script src="js/jquery-1.11.3.min.js" type="text/javascript"></script>
<script type="text/javascript" src="js/echarts.min.js"></script>
<script type="text/javascript" src="js/china.js"></script>
<script src="js/bootstrap.min.js" type="text/javascript"></script>
<script src='https://cdn.bootcss.com/echarts/3.7.0/echarts.simple.js'></script>
<script src='js/echarts-wordcloud.js'></script>
</head>
<body>
<div id="main" style=" 100%;height: 400px"></div>
<div>
  <table class="table" style=" 100%;align-content: center;" >
    <tr>
      <th align="center">论文连接</th>
    </tr>
    <c:forEach var="item" items="${list}">
      <tr>
        <td><a href="${item.lianjie }">${item.title}</a></td>
      </tr>
    </c:forEach>
  </table>
</div>
<script>
  var chart = echarts.init(document.getElementById('main'));
  var dt;
  $.ajax({
    url : "PaperServlet_",
    async : false,
    type : "POST",
    success : function(data) {
      dt = data;
     // alert(dt[0].title);
    },
    error : function() {
      alert("请求失败");
    },
    dataType : "json"
  });
  var mydata = new Array(0);
  for (var i = 0; i < dt.length; i++) {
      var d = {};
      
      d["name"] = dt[i].name;
      //alert(dt[i].name);
      d["value"] = dt[i].value;
      mydata.push(d);
  }
  var option = {
    tooltip: {},
    series: [ {
      type: 'wordCloud',
      gridSize: 2,
      sizeRange: [20, 50],
      rotationRange: [-90, 90],
      shape: 'pentagon',
       600,
      height: 300,
      drawOutOfBound: true,
      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
    } ]
  };

  chart.setOption(option);
  chart.on('click', function (params) {
      var url = "ClickServlet?geunjian=" + params.name;
      window.location.href = url;
    });
  window.onresize = chart.resize;
</script>
</body>
</html>

    传递参数：

    package com.me.servlet;

import java.io.IOException;
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 com.google.gson.Gson;
import com.me.dao.LWDao;
import com.me.domain.LunWen;
import com.me.domain.Tu;

@WebServlet("/PaperServlet_")
public class PaperServlet_ extends HttpServlet {
    private static final long serialVersionUID = 1L;
       

    public PaperServlet_() {
        super();
    }


    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setHeader("content-type", "text/html;charset=UTF-8");

        response.setCharacterEncoding("UTF-8");

        LWDao dao = new LWDao();
        List<LunWen> list = new ArrayList<LunWen>();
        List<Tu> list_tu = new ArrayList<Tu>();
        String [] str = new String[10000];
        String [] str_ = new String[10000];
        int [] b = new int[10000];
        int num = 0;
        int length1 = 0;
        try {
            list = dao.search_();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        for(int i=0;i<list.size();i++) {
            if(list.get(i).getLianjie()!=null) {
                String ss = list.get(i).getLianjie().substring(6,list.get(i).getLianjie().length());
                list.get(i).setLianjie("http://openaccess.thecvf.com/"+ss);
            }
            String[] split = list.get(i).getGuanjian().split(" ");
            for(int j=0;j<split.length;j++) {
                str[num++] = split[j];
            }
        }
        for(int k=0;k<num;k++) {
            b[k]=0;
        }
        str_[0]=str[0];
        int tt=1;
        Boolean rt=true;
        for(int i=1;i<num;i++) {
            rt=false;
            for(int j=0;j<tt;j++) {
                if(str[i].equals(str_[j])) {
                    rt=true;
                    break;
                }
            }
            if(!rt) {
                str_[tt]=str[i];
                tt++;
            }
        }
        length1=tt;
        for(int i=0;i<length1;i++) {
            for(int j=0;j<num;j++) {
                if(str_[i].equals(str[j])) {
                    b[i]++;
                }
            }
        }
        int t3=0;
        int t2=0;
        String sr="";
        for(int i=0;i<length1-1;i++) {
            t3=i;
            for(int j=i+1;j<length1;j++) {
                if(b[t3]<b[j]) {
                    t3=j;
                }
            }
           if(t3!=i) {
               t2=b[i];
               b[i]=b[t3];
               b[t3]=t2;
               sr=str_[i];
               str_[i]=str_[t3];
               str_[t3]=sr;
           }
        }
        for(int i=0;i<100;i++) {
            Tu tu = new Tu();
            tu.name=str_[i];
            tu.value= b[i];
            list_tu.add(tu);
        }
        
        Gson gson = new Gson();
        String json = gson.toJson(list_tu);
        response.getWriter().write(json);
    }
    

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

}
    package com.me.domain;


public class Tu {
    public String name;
    public int value;
}
    LWDao dao = new LWDao();
        List<LunWen> list = new ArrayList<LunWen>();
        List<Tu> list_tu = new ArrayList<Tu>();
        String [] str = new String[10000];
        String [] str_ = new String[10000];
        int [] b = new int[10000];
        int num = 0;
        int length1 = 0;
        try {
            list = dao.search_();
        } catch (SQLException e) {
            e.printStackTrace();
        }
//分割成单词
for(int i=0;i<list.size();i++) {
            String[] split = list.get(i).getGuanjian().split(" ");
            for(int j=0;j<split.length;j++) {
                str[num++] = split[j];
            }
        }
//去重并计数
        for(int k=0;k<num;k++) {
            b[k]=0;
        }
        str_[0]=str[0];
        int tt=1;
        Boolean rt=true;
        for(int i=1;i<num;i++) {
            rt=false;
            for(int j=0;j<tt;j++) {
                if(str[i].equals(str_[j])) {
                    rt=true;
                    break;
                }
            }
            if(!rt) {
                str_[tt]=str[i];
                tt++;
            }
        }
        length1=tt;
        for(int i=0;i<length1;i++) {
            for(int j=0;j<num;j++) {
                if(str_[i].equals(str[j])) {
                    b[i]++;
                }
            }
        }
//排序
        int t3=0;
        int t2=0;
        String sr="";
        for(int i=0;i<length1-1;i++) {
            t3=i;
            for(int j=i+1;j<length1;j++) {
                if(b[t3]<b[j]) {
                    t3=j;
                }
            }
           if(t3!=i) {
               t2=b[i];
               b[i]=b[t3];
               b[t3]=t2;
               sr=str_[i];
               str_[i]=str_[t3];
               str_[t3]=sr;
           }
        }
//封装
        for(int i=0;i<100;i++) {
            Tu tu = new Tu();
            tu.name=str_[i];
            tu.value= b[i];
            list_tu.add(tu);
        }
    package com.me.servlet;

import java.io.IOException;
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 com.me.dao.LWDao;
import com.me.domain.LunWen;
import com.me.domain.Tu;

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

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setHeader("content-type", "text/html;charset=UTF-8");

        response.setCharacterEncoding("UTF-8");

        LWDao dao = new LWDao();
        List<LunWen> list = new ArrayList<LunWen>();
        try {
            list = dao.search_();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        for(int i=0;i<list.size();i++) {
            if(list.get(i).getLianjie()!=null) {
                String ss = list.get(i).getLianjie().substring(6,list.get(i).getLianjie().length());
                list.get(i).setLianjie("http://openaccess.thecvf.com/"+ss);
            }
            
        }
        
        request.setAttribute("list",list);
        request.getRequestDispatcher("lw.jsp").forward(request, response);
    }

    /**
     * @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);
    }
    
    

}
    package com.me.domain;

public class LunWen {
    private String title;
    private String zhaiyao;
    private String guanjian;
    private String lianjie;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getZhaiyao() {
        return zhaiyao;
    }

    public void setZhaiyao(String zhaiyao) {
        this.zhaiyao = zhaiyao;
    }

    public String getGuanjian() {
        return guanjian;
    }

    public void setGuanjian(String guanjian) {
        this.guanjian = guanjian;
    }

    public String getLianjie() {
        return lianjie;
    }

    public void setLianjie(String lianjie) {
        this.lianjie = lianjie;
    }
}
    package com.me.servlet;

import java.io.IOException;
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 com.me.dao.LWDao;
import com.me.domain.LunWen;

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

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String geunjian = request.getParameter("geunjian");
        System.out.println(geunjian);
        List<LunWen> guan = new ArrayList<LunWen>();
        try {
            guan = dao.login(geunjian);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        for(int i=0;i<guan.size();i++) {
            if(guan.get(i).getLianjie()!=null) {
                String ss = guan.get(i).getLianjie().substring(6,guan.get(i).getLianjie().length());
                guan.get(i).setLianjie("http://openaccess.thecvf.com/"+ss);
            }
            
        }
        request.setAttribute("list", guan);
        System.out.println(guan.size());
        request.getRequestDispatcher("lw.jsp").forward(request, response);
    }

    /**
     * @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);
    }

}
    package com.me.dao;

import java.sql.SQLException;
import java.util.List;

import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanListHandler;

import com.me.domain.LunWen;
import com.me.utils.DBUtils;


public class LWDao {
    public List<LunWen> search_() throws SQLException {
        QueryRunner qr = new QueryRunner(DBUtils.getDataSource());
        String sql = "select * from cvpr";
        List<LunWen> query = qr.query(sql, new BeanListHandler<LunWen>(LunWen.class));
        return query;
    }
    public List<LunWen> login(String guanjien) throws SQLException {
        QueryRunner qr = new QueryRunner(DBUtils.getDataSource());
        String sql = "select * from cvpr where guanjian like "+"'%"+guanjien+"%'";
        System.out.println(sql);
        List<LunWen> user01 = qr.query(sql, new BeanListHandler<LunWen>(LunWen.class));
        return user01;
    }
}
    复制代码
    package com.me.servlet;

import java.io.IOException;
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 com.google.gson.Gson;
import com.me.dao.LWDao;
import com.me.domain.LunWen;
import com.me.domain.Tu;

@WebServlet("/PaperServlet_")
public class PaperServlet_ extends HttpServlet {
    private static final long serialVersionUID = 1L;
       

    public PaperServlet_() {
        super();
    }


    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setHeader("content-type", "text/html;charset=UTF-8");

        response.setCharacterEncoding("UTF-8");

        LWDao dao = new LWDao();
        List<LunWen> list = new ArrayList<LunWen>();
        List<Tu> list_tu = new ArrayList<Tu>();
        String [] str = new String[10000];
        String [] str_ = new String[10000];
        int [] b = new int[10000];
        int num = 0;
        int length1 = 0;
        try {
            list = dao.search_();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        for(int i=0;i<list.size();i++) {
            if(list.get(i).getLianjie()!=null) {
                String ss = list.get(i).getLianjie().substring(6,list.get(i).getLianjie().length());
                list.get(i).setLianjie("http://openaccess.thecvf.com/"+ss);
            }
            String[] split = list.get(i).getGuanjian().split(" ");
            for(int j=0;j<split.length;j++) {
                str[num++] = split[j];
            }
        }
        for(int k=0;k<num;k++) {
            b[k]=0;
        }
        str_[0]=str[0];
        int tt=1;
        Boolean rt=true;
        for(int i=1;i<num;i++) {
            rt=false;
            for(int j=0;j<tt;j++) {
                if(str[i].equals(str_[j])) {
                    rt=true;
                    break;
                }
            }
            if(!rt) {
                str_[tt]=str[i];
                tt++;
            }
        }
        length1=tt;
        for(int i=0;i<length1;i++) {
            for(int j=0;j<num;j++) {
                if(str_[i].equals(str[j])) {
                    b[i]++;
                }
            }
        }
        int t3=0;
        int t2=0;
        String sr="";
        for(int i=0;i<length1-1;i++) {
            t3=i;
            for(int j=i+1;j<length1;j++) {
                if(b[t3]<b[j]) {
                    t3=j;
                }
            }
           if(t3!=i) {
               t2=b[i];
               b[i]=b[t3];
               b[t3]=t2;
               sr=str_[i];
               str_[i]=str_[t3];
               str_[t3]=sr;
           }
        }
        for(int i=0;i<100;i++) {
            Tu tu = new Tu();
            tu.name=str_[i];
            tu.value= b[i];
            list_tu.add(tu);
        }
        
        Gson gson = new Gson();
        String json = gson.toJson(list_tu);
        response.getWriter().write(json);
    }
    

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

}
    复制代码

    1）热词实体

    复制代码
    package com.me.domain;


public class Tu {
    public String name;
    public int value;
}
    复制代码

    2）将关键字分割成单词然后对单词进行去重、计数和排序，装到list

    复制代码
    LWDao dao = new LWDao();
        List<LunWen> list = new ArrayList<LunWen>();
        List<Tu> list_tu = new ArrayList<Tu>();
        String [] str = new String[10000];
        String [] str_ = new String[10000];
        int [] b = new int[10000];
        int num = 0;
        int length1 = 0;
        try {
            list = dao.search_();
        } catch (SQLException e) {
            e.printStackTrace();
        }
//分割成单词
for(int i=0;i<list.size();i++) {
            String[] split = list.get(i).getGuanjian().split(" ");
            for(int j=0;j<split.length;j++) {
                str[num++] = split[j];
            }
        }
//去重并计数
        for(int k=0;k<num;k++) {
            b[k]=0;
        }
        str_[0]=str[0];
        int tt=1;
        Boolean rt=true;
        for(int i=1;i<num;i++) {
            rt=false;
            for(int j=0;j<tt;j++) {
                if(str[i].equals(str_[j])) {
                    rt=true;
                    break;
                }
            }
            if(!rt) {
                str_[tt]=str[i];
                tt++;
            }
        }
        length1=tt;
        for(int i=0;i<length1;i++) {
            for(int j=0;j<num;j++) {
                if(str_[i].equals(str[j])) {
                    b[i]++;
                }
            }
        }
//排序
        int t3=0;
        int t2=0;
        String sr="";
        for(int i=0;i<length1-1;i++) {
            t3=i;
            for(int j=i+1;j<length1;j++) {
                if(b[t3]<b[j]) {
                    t3=j;
                }
            }
           if(t3!=i) {
               t2=b[i];
               b[i]=b[t3];
               b[t3]=t2;
               sr=str_[i];
               str_[i]=str_[t3];
               str_[t3]=sr;
           }
        }
//封装
        for(int i=0;i<100;i++) {
            Tu tu = new Tu();
            tu.name=str_[i];
            tu.value= b[i];
            list_tu.add(tu);
        }
    复制代码

    4、论文连接列表数据准备（PaperServlet是最初访问的地方，携带数据跳转到jsp界面）

    复制代码
    package com.me.servlet;

import java.io.IOException;
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 com.me.dao.LWDao;
import com.me.domain.LunWen;
import com.me.domain.Tu;

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

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setHeader("content-type", "text/html;charset=UTF-8");

        response.setCharacterEncoding("UTF-8");

        LWDao dao = new LWDao();
        List<LunWen> list = new ArrayList<LunWen>();
        try {
            list = dao.search_();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        for(int i=0;i<list.size();i++) {
            if(list.get(i).getLianjie()!=null) {
                String ss = list.get(i).getLianjie().substring(6,list.get(i).getLianjie().length());
                list.get(i).setLianjie("http://openaccess.thecvf.com/"+ss);
            }
            
        }
        
        request.setAttribute("list",list);
        request.getRequestDispatcher("lw.jsp").forward(request, response);
    }

    /**
     * @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);
    }
    
    

}
    复制代码

    1）论文实体

    复制代码
    package com.me.domain;

public class LunWen {
    private String title;
    private String zhaiyao;
    private String guanjian;
    private String lianjie;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getZhaiyao() {
        return zhaiyao;
    }

    public void setZhaiyao(String zhaiyao) {
        this.zhaiyao = zhaiyao;
    }

    public String getGuanjian() {
        return guanjian;
    }

    public void setGuanjian(String guanjian) {
        this.guanjian = guanjian;
    }

    public String getLianjie() {
        return lianjie;
    }

    public void setLianjie(String lianjie) {
        this.lianjie = lianjie;
    }
}
    复制代码

    5、点击热词后携带此热词到servlet，再从数据库中找出论文的关键字中包含此热词的论文列表

    复制代码
    package com.me.servlet;

import java.io.IOException;
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 com.me.dao.LWDao;
import com.me.domain.LunWen;

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

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String geunjian = request.getParameter("geunjian");
        System.out.println(geunjian);
        List<LunWen> guan = new ArrayList<LunWen>();
        try {
            guan = dao.login(geunjian);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        for(int i=0;i<guan.size();i++) {
            if(guan.get(i).getLianjie()!=null) {
                String ss = guan.get(i).getLianjie().substring(6,guan.get(i).getLianjie().length());
                guan.get(i).setLianjie("http://openaccess.thecvf.com/"+ss);
            }
            
        }
        request.setAttribute("list", guan);
        System.out.println(guan.size());
        request.getRequestDispatcher("lw.jsp").forward(request, response);
    }

    /**
     * @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);
    }

}
    复制代码

    6、dao层：

    复制代码
    package com.me.dao;

import java.sql.SQLException;
import java.util.List;

import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanListHandler;

import com.me.domain.LunWen;
import com.me.utils.DBUtils;


public class LWDao {
    public List<LunWen> search_() throws SQLException {
        QueryRunner qr = new QueryRunner(DBUtils.getDataSource());
        String sql = "select * from cvpr";
        List<LunWen> query = qr.query(sql, new BeanListHandler<LunWen>(LunWen.class));
        return query;
    }
    public List<LunWen> login(String guanjien) throws SQLException {
        QueryRunner qr = new QueryRunner(DBUtils.getDataSource());
        String sql = "select * from cvpr where guanjian like "+"'%"+guanjien+"%'";
        System.out.println(sql);
        List<LunWen> user01 = qr.query(sql, new BeanListHandler<LunWen>(LunWen.class));
        return user01;
    }
}

     
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  • 原文地址：https://www.cnblogs.com/charles-s/p/13088895.html
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