关联表多数据的批量insert （批量导入，测试10W条数据用时46秒）

来源：互联网发布：淘宝新店铺如何引流编辑：程序博客网时间：2024/05/01 09:39

maven/Java/web/bootstrap/dataTable/app开发QQ群：566862629。希望更多人一起帮助我学习。

一、业务需求：作多个批量导入，根据业务不同，每条数据导入前作各种验证，

导入后提示验证失败的所有数据和原因。

二、思路： 1. 批量导入用 jdbc 直连数据库 addBatch方法实现，不走 Mybatis ，

2. 数据验证用 SQL 语句实现，不走 Mybatis ，

3. 创建临时表记录合格数据并导入正式数据库表

4. 创建临时表记录验证失败的数据，并最终返回

5. 由于业务需求批量导入时是要导入到 2 张主外键关联表，

所以一次性获取多个序列值以实现 2 表主外键的一致性。

6. 用 sessionID 区分表名和序列名，实现并发导入时数据无污染。

三、代码：

 /**     * 跳转用户导入页面     * @param request     * @param session     * @return String      */    @RequestMapping("userInfoImport")    public  String userInfoImport(HttpServletRequest request,HttpSession session){     return "op/usermgr/userInfoImport";    }        @RequestMapping("userInfoExcelImport")    public  String userInfoExcelImport(HttpServletRequest request,HttpSession session,@RequestParam("excelPath")MultipartFile excelPath){        Long start = System.currentTimeMillis();    String backUrl = "../usermgr/initQuery.do";        String[] excelTop = new String[]{"msisdn","custname","phoneType","creditamount","payType"}; // 表头                String tableName = session.getId().substring(0,8);    // 定义-修改数据临时表     String updateListTemp ="CREATE TABLE updateListTemp"+tableName+"("    +"id integer NOT NULL,"    +"msisdn varchar2(12) NOT NULL,"    +"custname varchar2(50) NOT NULL,"    +"phoneType varchar2(50) NOT NULL,"    +"creditamount varchar2(10) NOT NULL,"+"payType varchar2(50) NOT NULL)"    +" tablespace ISMP pctfree 60 initrans 1 maxtrans 255 storage (initial 64K) ";    String updateTemp_seq ="CREATE SEQUENCE updateTemp_seq"+tableName+""       +" INCREMENT BY 1" // 每次加1       +" START WITH 1 "  // 从1开始计数       +" NOMAXvalue "    // 不设置最大值       +" NOCYCLE "     // 一直累加，不循环       +" CACHE 10 ";     // 缓存10个             // 定义-新增数据临时表     String insertListTemp ="CREATE TABLE insertListTemp"+tableName+"("      +"id integer NOT NULL,"      +"msisdn varchar2(12) NOT NULL,"      +"custname varchar2(50) NOT NULL,"      +"phoneType varchar2(50) NOT NULL,"      +"creditamount varchar2(10) NOT NULL,"  +"payType varchar2(50) NOT NULL)"      +" tablespace ISMP pctfree 60 initrans 1 maxtrans 255 storage (initial 64K) ";     String insertTemp_seq ="CREATE SEQUENCE insertTemp_seq"+tableName+""     +" INCREMENT BY 1" // 每次加1     +" START WITH 1 "  // 从1开始计数     +" NOMAXvalue "   // 不设置最大值     +" NOCYCLE "     // 一直累加，不循环     +" CACHE 10 ";     try {    if(excelPath == null){    OprResult.SetOprResult(request, "导入用户异常","导入用户失败，请选择要导入的内容 ！", backUrl,OprResult.FAILURE);    return "/op/oprResult";    }        // 解析得到的用户表集合        List<List<Object>> usrlist = ImportExcelUtil.getExcelList(excelPath.getInputStream(),excelTop);if(usrlist == null){OprResult.SetOprResult(request, "导入用户异常", "导入用户信息，数据表格不能有空值 ！", backUrl,OprResult.FAILURE);return "/op/oprResult";}// 验证电话、宽带账号List<String> failMsisdnList = new ArrayList<String>();List<String> msiddn = new ArrayList<String>();for(int y =0; y<usrlist.size(); y++){if(String.valueOf(usrlist.get(y).get(2).toString()).equals("电话号码")){ // 验证电话号码if(!ValidateUtils.isMobile(usrlist.get(y).get(0).toString())){failMsisdnList.add(usrlist.get(y).get(0).toString());usrlist.remove(usrlist.get(y));y--;}}else{if(ValidateDhmp.validateUserMsisdn(usrlist.get(y).get(0).toString())){ // 验证宽带账号failMsisdnList.add(usrlist.get(y).get(0).toString());usrlist.remove(usrlist.get(y));y--;}}}int failsize = failMsisdnList.size();// 去重for(int y =0; y<usrlist.size(); y++){if(y<1){msiddn.add(usrlist.get(y).get(0).toString());}else{if(msiddn.contains(usrlist.get(y).get(0).toString())){usrlist.remove(usrlist.get(y));y--;}else{msiddn.add(usrlist.get(y).get(0).toString());}}}// 创建临时表和序列 -正确数据表、问题数据表  BatchInsert.goSql(updateListTemp);   BatchInsert.goSql(updateTemp_seq);   BatchInsert.goSql(insertListTemp);   BatchInsert.goSql(insertTemp_seq);     // 导入sql:  String insertSql ="insert into insertListTemp"+tableName+" values(updateTemp_seq"+tableName+".nextval,?,?,?,?,?)";  BatchInsert.exeBatch(insertSql , usrlist); // 批量导入到新增数据表    // 插入问题数据（用户已存在）-sql  insertSql ="insert into updateListTemp"+tableName+" select updateTemp_seq"+tableName+".nextval,"  +"temp.msisdn,temp.custname,temp.phoneType,temp.creditamount,temp.payType"  +" from insertListTemp"+tableName+" temp where temp.msisdn in (select msisdn from usr_end_user )";  BatchInsert.goSql(insertSql);     // 删除问题数据（用户已存在）-sql  String deleteErrorSql ="delete from insertListTemp"+tableName+" where msisdn in (select msisdn from usr_end_user )";  BatchInsert.goSql(deleteErrorSql);    // 只修改数据  String[] col = new String[] {"id","msisdn","custname","phoneType","creditamount","payType"};  List<List<Object>> failList = BatchInsert.selectToList("select * from updateListTemp"+tableName,col);  failsize += failList.size();      StringBuffer failbuffer = new StringBuffer();  failbuffer.append("<br><br>一、请注意保留以下信息，此提示只显示一次  ！");  failbuffer.append("<br><br>二、失败数据，");  if(failList != null && failList.size() > 0){  failbuffer.append("<br><br> 账号：");   for(List<Object> fail :failList){  failbuffer.append(fail.get(1)+", ");   }  failbuffer.append("<br><br>原因：用户已经存在，请直接编辑。");   }        for(List<Object> fail : failList){      fail.remove(0);      }      usrlist.removeAll(failList); // 求差             if(failMsisdnList != null && failMsisdnList.size() > 0){      failbuffer.append("<br><br> 账号：");      for(String msisdn :failMsisdnList){ // 电话、宽带账号格式不对          failbuffer.append(msisdn+", ");           }          failbuffer.append("<br><br>原因：电话号码或宽带账号格式不对。");       }            String squence ="select USR_CUSTOMER_SEQ.nextval cust_id from (select 1 from all_objects where rownum <= "+usrlist.size()+")";      List<String> squenceList = BatchInsert.selectSql(squence);      // 拼装customList      List<List<Object>> customList  = new ArrayList<List<Object>>(); Long maxCode = (long) 0; String maxCustCode = "";for(int i=0; i< usrlist.size(); i++){List<Object> custom = new ArrayList<Object>();custom.add(squenceList.get(i)); //　usr_customer表的序列值custom.add(usrlist.get(i).get(1)); // custnamecustomList.add(custom);if(i<2){maxCustCode = usermgrService.findMaxCustCode();if(maxCustCode!= null && !"".equals(maxCustCode)){        maxCode = Long.parseLong(maxCustCode)+1;        custom.add(String.valueOf(maxCode));        }else{        custom.add(String.valueOf("10000000")); // setCustCode        }}else{maxCode += 1;custom.add(String.valueOf(maxCode)); // setCustCode}}// 客户表insert Sql:String customerSql ="insert into usr_customer(cust_id,cust_name,cust_code)values(?,?,?)";BatchInsert.exeBatch(customerSql , customList); // 插入客户表// 用户表insert Sql:String userSql ="insert into usr_end_user(user_id,cust_id,msisdn,creditamount,phone_type,user_payment_type,"  +"user_stat,user_prvc_code,user_trade_type,is_black,is_active,language,user_level,is_test_user,"  +"consume_limit,limit_tips,dayfee,monthfee,is_realname)"  +" values(usr_end_user_seq.nextVal, ?,?,?,?,? ,?,?,?,?,? ,?,?,?,?,? ,?,?,?) ";// 拼装userListList<List<Object>> userList  = new ArrayList<List<Object>>(); for(int i=0;i<usrlist.size();i++){List<Object> user = new ArrayList<Object>();user.add(squenceList.get(i)); //cust_iduser.add(usrlist.get(i).get(0));//msisdnuser.add(String.valueOf(usrlist.get(i).get(3))); //creditamountif("电话号码".equals(String.valueOf(usrlist.get(i).get(2)))){user.add("1"); //phone_type}else if("宽带号码".equals(String.valueOf(usrlist.get(i).get(2)))){user.add("3"); //phone_type}if("后付费用户".equals(String.valueOf(usrlist.get(i).get(4)))){user.add("1"); //user_payment_type}else  if("预付费用户".equals(String.valueOf(usrlist.get(i).get(4)))){user.add("2"); //user_payment_type}user.add("1"); //user_statuser.add("08"); //user_prvc_codeuser.add("0"); //user_trade_type-账户行业类型：默认为家庭user.add(0); //is_blackuser.add(0); //is_activeuser.add("01"); //LANGUAGEuser.add("01"); //USER_LEVELuser.add(0); //IS_TEST_USERuser.add("'3|0|0|0|0|0|0|0|0'");//consumeLimituser.add("'0|0|0'");//LIMIT_TIPSuser.add("0"); //DAYFEEuser.add("0"); //MONTHFEEuser.add("1"); //IS_REALNAMEuserList.add(user);}BatchInsert.exeBatch(userSql ,userList); // 正式插入用户表      /*try{//日志        log(session, UsermgrServiceImpl.class,"exeBatch", "批量新增用户");log(session, UsermgrServiceImpl.class,"exeBatch", "批量新增客户");}catch (Exception e){   e.printStackTrace();}*/    // 删除临时表  String dropSql ="drop table updateListTemp"+tableName;  String dropSql2 ="drop sequence updateTemp_seq"+tableName;  String dropSql3 ="drop table insertListTemp"+tableName;  String dropSql4 ="drop sequence insertTemp_seq"+tableName;  BatchInsert.goSql(dropSql);  BatchInsert.goSql(dropSql2);  BatchInsert.goSql(dropSql3);  BatchInsert.goSql(dropSql4);  Long end = System.currentTimeMillis();System.out.println();System.out.println("导入用户信息表"+userList.size()+"条数据，总用时==============================:"+ (end-start)/1000+"秒 。");System.out.println();if(failsize > 0){OprResult.SetOprResult(request, "提示信息", "部分用户信息导入失败，如下："+failbuffer, backUrl, OprResult.FAILURE);}else{OprResult.SetOprResult(request, "提示信息", "用户信息导入成功", backUrl, OprResult.SUCCESS);}} catch (EncryptedDocumentException e) {e.printStackTrace();OprResult.SetOprResult(request, "导入用户异常","导入用户信息失败，请刷新页面后重试 ！", backUrl,OprResult.FAILURE);} catch (InvalidFormatException e) {e.printStackTrace();OprResult.SetOprResult(request, "导入用户异常","导入用户信息失败，请刷新页面后重试 ！", backUrl,OprResult.FAILURE);} catch (IOException e) {e.printStackTrace();OprResult.SetOprResult(request, "导入用户异常","导入用户信息失败，请刷新页面后重试 ！", backUrl,OprResult.FAILURE);} catch (Exception e) {e.printStackTrace();OprResult.SetOprResult(request, "导入用户异常","导入用户信息失败，请刷新页面后重试 ！", backUrl,OprResult.FAILURE);}    return "/op/oprResult";    }

/** * 判断是不是合法手机号码 * @param mobile * @return */public static boolean isMobile(String mobile) {Pattern pattern = Pattern.compile("^((13[0-9])|(15[0-9])|(18[0-9]))\\d{8}$");return pattern.matcher(mobile).matches();}

批量导入、表格解析工具类：

package com.mc.common.util;import java.sql.Connection;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.ArrayList;import java.util.List;import com.zznode.ismp.mc.common.MspException;/** * 批量导入工具类 * @author JiangYu */public class BatchInsert {//    private static String url="jdbc:oracle:thin:@127.0.0.1:9521:orcl";    private static String url = MspConfiguration.getInstance().getParaValue("DBUrl");      // oracle数据库用户名         private static String user = MspConfiguration.getInstance().getParaValue("DBUser");        // oracle数据库密码         private static String password = MspConfiguration.getInstance().getParaValue("DBPassword");        public static Connection conn;        public static PreparedStatement ps;        public static ResultSet rs;        public static Statement st ;          public static Connection getConnection(){ //连接数据库的方法                    try {                Class.forName("oracle.jdbc.driver.OracleDriver"); //初始化驱动包                     conn = DriverManager.getConnection(url, user, password);            } catch (Exception e) {                e.printStackTrace();            }          return conn;    }             public static void main(String[] args) {                getConnection();            if(conn==null){                System.out.println("与oracle数据库连接失败！");            }else{                System.out.println("与oracle数据库连接成功！");                       }         }           /**      * 批量运行sql      * @param con      * @param sql      * @param list      */     public static void exeBatch(String sql,List<List<Object>> list) throws Exception{          try {       StringBuffer sqlbuffer = new StringBuffer();       sqlbuffer.append(sql);       Connection con = getConnection();       con.setAutoCommit(false);// 关闭事务自动提交       final int batchSize = 1000; //　每满1000条数据运行一次       int count = 0;       Long startTime = System.currentTimeMillis();       PreparedStatement pst = (PreparedStatement) con.prepareStatement(String.valueOf(sql));              if(list != null && list.size() > 0){       for (int i = 0; i < list.size(); i++) {           for(int x =0;x<list.get(i).size();x++){           pst.setObject(x+1,list.get(i).get(x));           }           pst.addBatch();// 把一个SQL命令加入命令列表           if(++count % batchSize == 0 ){                  pst.executeBatch();                  count = 0;              }           }       }              pst.executeBatch();       con.commit();       pst.close();       con.close();              Long endTime = System.currentTimeMillis();       System.out.println("单纯inserrt用时：" + (endTime - startTime));         } catch (Exception e) {  e.printStackTrace();  throw new MspException("网络不畅，请刷新页面后重试 ！");  }     }       // 解析数据表     public static List<List<Object>> selectToList(String sql,String[] col){        Connection conn = null;//定义为空值        Statement stmt = null;        ResultSet rs = null;        conn = getConnection();        List<Object> list = null;        List<List<Object>> resultList = new ArrayList<List<Object>>();         try {         stmt = conn.createStatement();//创建一个Statement语句对象         rs = stmt.executeQuery(sql);//执行sql语句         while(rs.next()){         list = new ArrayList<Object>();         for(int i=0; i< col.length; i++){         list.add(rs.getObject(col[i]));         }         resultList.add(list);         }     } catch (SQLException e) {         e.printStackTrace();     }finally{     try {conn.close();stmt.cancel();    rs.close(); }catch (SQLException e) {e.printStackTrace(); }     } return resultList;   }          // 执行增、删、改sql     public static void goSql(String sql){         Connection conn = null;//定义为空值         Statement stmt = null;         conn = getConnection();     try {             stmt = conn.createStatement();         } catch (SQLException e) {             e.printStackTrace();         }         //4、执行语句         try {             stmt.executeUpdate(sql);         } catch (SQLException e) {             e.printStackTrace();         }         //5、关闭操作         try {                 stmt.close();                 conn.close();         } catch (SQLException e) {                 e.printStackTrace();         }    }          // 单纯查询      public static List<String> selectSql(String sql){        Connection conn = null;//定义为空值        Statement stmt = null;        ResultSet rs = null;        conn = getConnection();        List<String> list = new ArrayList<String>();        try {         stmt = conn.createStatement();//创建一个Statement语句对象         rs = stmt.executeQuery(sql);//执行sql语句         while(rs.next()){         list.add(rs.getString("cust_id"));         }     } catch (SQLException e) {         e.printStackTrace();     }finally{     try {conn.close();stmt.cancel();    rs.close(); }catch (SQLException e) {e.printStackTrace(); }     } return list;   }     }

说明：此句是为了一次性获取多个序列值，方便 2 表关联：

String squence ="select USR_CUSTOMER_SEQ.nextval cust_id from (select 1 from all_objects where rownum <= "+usrlist.size()+")";

阅读全文

1 0