java 导出dbf格式

java 导出dbf 格式

demo地址：https://github.com/woyaochengweidaniu/javaEE/tree/master/file-handling

参考文章：http://priede.bf.lu.lv/ftp/pub/DatuBazes/DBF/javadbf/javadbf-tutorial.html

依赖

<!-- https://mvnrepository.com/artifact/com.github.albfernandez/javadbf -->
        <dependency>
            <groupId>com.github.albfernandez</groupId>
            <artifactId>javadbf</artifactId>
            <version>1.9.4</version>
        </dependency>

导出dbf

package com.example.easyexcel.dbf;

import com.linuxense.javadbf.DBFDataType;
import com.linuxense.javadbf.DBFException;
import com.linuxense.javadbf.DBFField;
import com.linuxense.javadbf.DBFWriter;

import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.charset.Charset;

/**
 * javadbf包   导入导出
 *
 * 参考文章：http://priede.bf.lu.lv/ftp/pub/DatuBazes/DBF/javadbf/javadbf-tutorial.html
 * @author lcm
 */
public class DBFWriterTest {

    public static void main( String args[])
            throws DBFException, IOException {

        // let us create field definitions first
        // we will go for 3 fields
        //
        DBFField fields[] = new DBFField[ 3];

        fields[0] = new DBFField();
        fields[0].setName( "emp_code");
        fields[0].setType(DBFDataType.CHARACTER);
        fields[0].setLength( 10);

        fields[1] = new DBFField();
        fields[1].setName( "emp_name");

        fields[1].setType(DBFDataType.CHARACTER);
        fields[1].setLength( 20);

        fields[2] = new DBFField();
        fields[2].setName( "salary");
        fields[2].setType(DBFDataType.FLOATING_POINT );
        fields[2].setLength( 12);
        fields[2].setDecimalCount( 2);

        FileOutputStream fos = new FileOutputStream("C:\\temp\\test.dbf");
        DBFWriter writer = new DBFWriter(fos, Charset.defaultCharset());
        writer.setFields( fields);

        // now populate DBFWriter
        //

        Object[] rowData = new Object[3];
        rowData[0] = "1000";
        rowData[1] = "John";
        rowData[2] = 5000.00;

        writer.addRecord( rowData);

        rowData = new Object[3];
        rowData[0] = "1001";
        rowData[1] = "Lalit";
        rowData[2] = 3400.00;

        writer.addRecord( rowData);

        rowData = new Object[3];
        rowData[0] = "1002";
        rowData[1] = "Rohit";
        rowData[2] = 7350.00;

        writer.addRecord( rowData);
        writer.close();
        fos.close();
    }
}

导入dbf

package com.example.easyexcel.dbf;

import com.linuxense.javadbf.DBFException;
import com.linuxense.javadbf.DBFField;
import com.linuxense.javadbf.DBFReader;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

public class JavaDBFReaderTest {

    public static void main( String args[]) {

        try {

            // create a DBFReader object
            //
            InputStream inputStream  = new FileInputStream( args[ 0]); // take dbf file as program argument
            DBFReader reader = new DBFReader( inputStream);

            // get the field count if you want for some reasons like the following
            //
            int numberOfFields = reader.getFieldCount();

            // use this count to fetch all field information
            // if required
            //
            for( int i=0; i<numberOfFields; i++) {

                DBFField field = reader.getField( i);

                // do something with it if you want
                // refer the JavaDoc API reference for more details
                //
                System.out.println( field.getName());
            }

            // Now, lets us start reading the rows
            //
            Object []rowObjects;

            while( (rowObjects = reader.nextRecord()) != null) {

                for( int i=0; i<rowObjects.length; i++) {

                    System.out.println( rowObjects[i]);
                }
            }

            // By now, we have itereated through all of the rows

            inputStream.close();
        }
        catch( DBFException e) {

            System.out.println( e.getMessage());
        }
        catch( IOException e) {

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