java解析dbf文件

Posted 2020-06-13

dbf文件, 不能直接另存为excel文件, 会丢数据! 需要将dbf数据存储到数据库中, 在从数据库中将数据导出成excel.

import java.io.File;

import java.io.FileInputStream;

import java.io.InputStream;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.apache.commons.lang.ObjectUtils;

import cn.com.wfc.db.ConnectionPool;

import com.linuxense.javadbf.DBFField;

import com.linuxense.javadbf.DBFReader;

/**

 * java解析dbf文件,将数据导入数据库表,需要javadbf.4.1.jar包

 * @author LiChuntao

 */

public class JavaDBFReaderTest {

   public static void main(String args[]) {

      Connection conn = null;

      PreparedStatement pstmt = null;

      List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();

      try {

         InputStream inputStream = new FileInputStream(new File(

                "F:/院校代码.dbf")); // take dbf file as program argument

         DBFReader reader = new DBFReader(inputStream);

         for (int i = 0; i < reader.getRecordCount(); i++) { // 所有记录行数

            Object obj[] = reader.nextRecord();

            Map<String, Object> map = new HashMap<String, Object>();

            for (int j = 0; j < obj.length; j++) { // 一行中所有字段的数据

                DBFField field = reader.getField(j);

                map.put(field.getName(), ObjectUtils.defaultIfNull(obj[j], "").toString().trim()); // column和 value

            }

            list.add(map);

         }

         inputStream.close();

         //将获取的数据入库

         String sql = "insert into abcdefg(YXDM,YXMC,DM1,DM2,YXDH,YXSZDQDM,YXDZ,YXLSDM,BLS,YXLXR," +

                "YXYZBM,FRHM,EMAIL,HTTP,YXFLDM,DZB)" +

                " values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";

         conn = ConnectionPool.getConnection();

         conn.setAutoCommit(false);

         pstmt = conn.prepareStatement(sql);

         for(int m=0;m<list.size();m++){

            Map<String,Object> tempMap = list.get(m);

            pstmt.setObject(1, tempMap.get("YXDM"));

            pstmt.setObject(2, tempMap.get("YXMC"));

            pstmt.setObject(3, tempMap.get("DM1"));

            pstmt.setObject(4, tempMap.get("DM2"));

            pstmt.setObject(5, tempMap.get("YXDH"));

            pstmt.setObject(6, tempMap.get("YXSZDQDM"));

            pstmt.setObject(7, tempMap.get("YXDZ"));

            pstmt.setObject(8, tempMap.get("YXLSDM"));

            pstmt.setObject(9, tempMap.get("BLS"));

            pstmt.setObject(10, tempMap.get("YXLXR"));

            pstmt.setObject(11, tempMap.get("YXYZBM"));

            pstmt.setObject(12, tempMap.get("FRHM"));

            pstmt.setObject(13, tempMap.get("EMAIL"));

            pstmt.setObject(14, tempMap.get("HTTP"));

            pstmt.setObject(15, tempMap.get("YXFLDM"));

            pstmt.setObject(16, tempMap.get("DZB"));

            pstmt.executeUpdate();

         }

         conn.commit();

         System.out.println("success");

      } catch (Exception e) {

         ConnectionPool.rollback(conn);

         System.out.println(e.getMessage());

      } finally{

         ConnectionPool.close(conn);

         ConnectionPool.closePstmt(pstmt);

      }

   }

/**

  * 导入dbf数据

  * @param user

  * @param xxid

  * @param fileStream

  * @param info

  */

 public boolean importXxxxByDbf(Login user, String xxid, InputStream fileStream,

   StringBuffer info) {

  boolean importFlag = true;

  Connection conn = null;

  PreparedStatement pstmt = null;

  List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();

  List<String> cols = new ArrayList<String>();

  try {

   DBFReader reader = new DBFReader(fileStream);

   //读取dbf中所有数据,并存入到list中

   for (int i = 0; i < reader.getRecordCount(); i++) { // 所有记录行数

    Object obj[] = reader.nextRecord();

    Map<String, Object> map = new HashMap<String, Object>();

    for (int j = 0; j < obj.length; j++) { // 一行中所有字段的数据

     DBFField field = reader.getField(j);

     map.put(field.getName(), ObjectUtils.defaultIfNull(obj[j], "").toString().trim()); // column和 value

    }

    list.add(map);

   }

   for(int c=0;c<reader.getFieldCount();c++){ //获取dbf中所有字段,用于生成sql

    DBFField field = reader.getField(c);

    cols.add(field.getName());

   }

   fileStream.close();

   //向jy_bysxx_src表中添加记录

   String inSql = this.createInsertSql(cols, "jy_bysxx_src");

   conn = ConnectionPool.getConnection();

   conn.setAutoCommit(false);

   pstmt = conn.prepareStatement(inSql);

   for(int m=0;m<list.size();m++){

    Map<String, Object> map = list.get(m);

    for(int n=0;n<cols.size();n++){

     pstmt.setObject(n+1,map.get(cols));

    }

    pstmt.addBatch();

    if(m%500==0){ //500条批量一次

     pstmt.executeBatch();

    }

   }

   if(list.size()%500!=0) pstmt.executeBatch(); //存在余数,则批量执行余数.

   conn.commit();

  } catch (Exception e) {

   ConnectionPool.rollback(conn);

   importFlag = false;

   info.append(e.getMessage());

  } finally{

   ConnectionPool.close(conn);

   ConnectionPool.closePstmt(pstmt);

  }

  return importFlag;

 }