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package update;
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import support.ConnectionSql;
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import java.sql.*;
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import java.util.*;
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import java.util.Date;
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public class StatisticsPostsCount {
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String tablename="match_simple";
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String column1="score";
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String column2="favoriteCount";
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String column3="viewCount";
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String column4="answerCount";
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String column5="postsCount";
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String proj_name="proj_name";
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String tag="tag";
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String posts_split_tags="posts_split_tags";
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String posts_id="posts_id";
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String posts="posts";
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String id="id";
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String postTypeId="postTypeId";
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Connection conn=new ConnectionSql("ossean_db").connection();
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public StatisticsPostsCount() {
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// TODO Auto-generated constructor stub
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}
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public StatisticsPostsCount(String tablename,String coulumn1,String coulumn2,String coulumn3,String coulumn4,String coulumn5) {
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// TODO Auto-generated constructor stub
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this.tablename=tablename;
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this.column1=coulumn1;
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this.column2=coulumn2;
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this.column3=coulumn3;
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this.column4=coulumn4;
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this.column5=coulumn5;
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}
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/**
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* 统计每个项目对应的帖子数，帖子的总回复数，获赞数，收藏数，浏览数:(psotsCount,answerCount,score,favoriteCount,viewCount)
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* 从match_simple读出项目和匹配的标签，根据标签在split_posts_tags表找出posts_id，统计每个posts的count
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*/
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public boolean cal_count() {
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try {
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conn.setAutoCommit(false);
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Statement st1=conn.createStatement();
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Statement st2;
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Statement st3;
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String sql="select "+proj_name+","+tag+" from "+tablename;
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ResultSet rs1=st1.executeQuery(sql);
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ResultSet rs2;
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ResultSet rs3;
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System.out.print("start\t\t\t");System.out.println(new Date());
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while(rs1.next()){
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String temp_proj_name="'"+rs1.getString(proj_name)+"'";
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String temp_tag="'"+rs1.getString(tag)+"'";
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st2=conn.createStatement();
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sql="select "+posts_id+" from "+posts_split_tags+" where "+tag+" = "+temp_tag;
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rs2=st2.executeQuery(sql); //查询post_split_tags得到posts_id
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int data1=0,data2=0,data3=0,data4=0,data5=0;
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while(rs2.next()){
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int temp_posts_id=rs2.getInt(posts_id);
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st3=conn.createStatement();
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sql="select "+column1+","+column2+","+column3+","+column4+" from "+posts+" where "+id+" = "+temp_posts_id;
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rs3=st3.executeQuery(sql);
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while(rs3.next()){
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data1+=rs3.getInt(column1);
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data2+=rs3.getInt(column2);
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data3+=rs3.getInt(column3);
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data4+=rs3.getInt(column4);
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data5++;
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}
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rs3.close();
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st3.close();
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}
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rs2.close();
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sql="update "+tablename+" set "+column1+"="+data1+","+column2+"="+data2+","+column3+"="+data3+","+column4+"="+data4+","+column5+"="+data5+" where "+proj_name+" = "+temp_proj_name;
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st2.execute(sql);
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st2.close();
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System.out.print(temp_proj_name+"\t\t");
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System.out.println(new Date());
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}
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rs1.close();
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st1.close();
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conn.commit();
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conn.close();
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System.out.println("down");
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} catch (Exception e) {
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// TODO: handle exception
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e.printStackTrace();
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return false;
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}
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return true;
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}
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public static void main(String[] args) {
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StatisticsPostsCount statisticsPostsCount=new StatisticsPostsCount();
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statisticsPostsCount.cal_count();
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}
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}
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