Java Example Code for Reading CSV File with Super CSV

Author: namhaminh

Books.csv

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+isbn,title,author,publisher,published,price
+0321356683,Effective Java,Joshua Bloch,Addision-Wesley,05/08/2008,38
+0321356683,Head First Java,Kathy Sierra & Bert Bates,O'Reilly Media,02/09/2005,30
+0131872486,Thinking in Java,Bruce Eckel,Prentice Hall,02/26/2006,45
+0596527756,Java Generics and Collections,Naftalin & Philip Wadler,O'Reilly Media,10/24/2006,27

src/net/code/java/supercsv/Book.java

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+package net.codejava.supercsv;
+
+import java.util.Date;
+
+public class Book {
+	private String isbn;
+	private String title;
+	private String author;
+	private String publisher;
+	private Date published;
+	private double price;
+
+	public Book() {
+		// this empty constructor is required
+	}
+	
+	public Book(String isbn, String title, String author, String publisher,
+			Date published, double price) {
+		this.isbn = isbn;
+		this.title = title;
+		this.author = author;
+		this.publisher = publisher;
+		this.published = published;
+		this.price = price;
+	}
+
+	public String getIsbn() {
+		return isbn;
+	}
+
+	public void setIsbn(String isbn) {
+		this.isbn = isbn;
+	}
+
+	public String getTitle() {
+		return title;
+	}
+
+	public void setTitle(String title) {
+		this.title = title;
+	}
+
+	public String getAuthor() {
+		return author;
+	}
+
+	public void setAuthor(String author) {
+		this.author = author;
+	}
+
+	public String getPublisher() {
+		return publisher;
+	}
+
+	public void setPublisher(String publisher) {
+		this.publisher = publisher;
+	}
+
+	public Date getPublished() {
+		return published;
+	}
+
+	public void setPublished(Date published) {
+		this.published = published;
+	}
+
+	public double getPrice() {
+		return price;
+	}
+
+	public void setPrice(double price) {
+		this.price = price;
+	}
+
+}

src/net/code/java/supercsv/CsvBeanReaderExample.java

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+package net.codejava.supercsv;
+
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+
+import org.supercsv.cellprocessor.ParseDate;
+import org.supercsv.cellprocessor.ParseDouble;
+import org.supercsv.cellprocessor.constraint.NotNull;
+import org.supercsv.cellprocessor.ift.CellProcessor;
+import org.supercsv.io.CsvBeanReader;
+import org.supercsv.io.ICsvBeanReader;
+import org.supercsv.prefs.CsvPreference;
+
+/**
+ * This program demonstrates how to read CSV file using SuperCSV library.
+ * Each line is read into a JavaBean class (POJO).
+ * @author www.codejava.net
+ *
+ */
+public class CsvBeanReaderExample {
+
+	static void readCSVFile(String csvFileName) {
+		ICsvBeanReader beanReader = null;
+		CellProcessor[] processors = new CellProcessor[] { 
+				new NotNull(), // ISBN
+				new NotNull(), // title
+				new NotNull(), // author
+				new NotNull(), // publisher
+				new ParseDate("MM/dd/yyyy"), // published date
+				new ParseDouble() // price
+		};
+
+		try {
+			beanReader = new CsvBeanReader(new FileReader(csvFileName),
+					CsvPreference.STANDARD_PREFERENCE);
+			String[] header = beanReader.getHeader(true);
+			Book bookBean = null;
+			while ((bookBean = beanReader.read(Book.class, header, processors)) != null) {
+				System.out.printf("%s %-30s %-30s %-20s %tD $%.2f",
+						bookBean.getIsbn(), bookBean.getTitle(),
+						bookBean.getAuthor(), bookBean.getPublisher(),
+						bookBean.getPublished(), bookBean.getPrice());
+				System.out.println();
+			}
+		} catch (FileNotFoundException ex) {
+			System.err.println("Could not find the CSV file: " + ex);
+		} catch (IOException ex) {
+			System.err.println("Error reading the CSV file: " + ex);
+		} finally {
+			if (beanReader != null) {
+				try {
+					beanReader.close();
+				} catch (IOException ex) {
+					System.err.println("Error closing the reader: " + ex);
+				}
+			}
+		}
+	}
+
+	public static void main(String[] args) {
+		String csvFileName = "Books.csv";
+		readCSVFile(csvFileName);
+	}
+}