ibatis学习

ibatis学习笔记

   对book表的CRUD操作

DROP TABLE IF EXISTS `book`;
CREATE TABLE `book` (
  `id` int(11) NOT NULL auto_increment,
  `author` varchar(50) default NULL,
  `title` varchar(50) default NULL,
  `price` double NOT NULL default '0',
  `yr` date default NULL,
  `description` varchar(100) default NULL,
  `saleAmount` int(11) default NULL,
  PRIMARY KEY  (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=18 DEFAULT CHARSET=utf8;

Book.java

package com.it.domain;

import java.util.Date;

public class Book implements java.io.Serializable {

	private static final long serialVersionUID = 1L;
	private Integer id;
	private String author;
	private String title;
	private Double price;
	private Date yr;
	private String description;
	private Integer saleAmount;

	public Book() {
	}

	public Book(Double price) {
		this.price = price;
	}

	public Book(String author, String title, Double price, Date yr,
			String description, Integer saleAmount) {
		this.author = author;
		this.title = title;
		this.price = price;
		this.yr = yr;
		this.description = description;
		this.saleAmount = saleAmount;
	}

	public Integer getId() {
		return this.id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getAuthor() {
		return this.author;
	}

	public void setAuthor(String author) {
		this.author = author;
	}

	public String getTitle() {
		return this.title;
	}

	public void setTitle(String title) {
		this.title = title;
	}

	public Double getPrice() {
		return this.price;
	}

	public void setPrice(Double price) {
		this.price = price;
	}

	public Date getYr() {
		return this.yr;
	}

	public void setYr(Date yr) {
		this.yr = yr;
	}

	public String getDescription() {
		return this.description;
	}

	public void setDescription(String description) {
		this.description = description;
	}

	public Integer getSaleAmount() {
		return this.saleAmount;
	}

	public void setSaleAmount(Integer saleAmount) {
		this.saleAmount = saleAmount;
	}

}

SqlMapConfig.xml

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE sqlMapConfig      
    PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"      
    "http://ibatis.apache.org/dtd/sql-map-config-2.dtd">

<sqlMapConfig>

  <transactionManager type="JDBC" commitRequired="false">
    <dataSource type="SIMPLE">
      <property name="JDBC.Driver" value="com.mysql.jdbc.Driver"/>
      <property name="JDBC.ConnectionURL" value="jdbc:mysql://127.0.0.1:3306/bookstore"/>
      <property name="JDBC.Username" value="root"/>
      <property name="JDBC.Password" value="123456"/>
    </dataSource>
  </transactionManager>
  
  <sqlMap resource="com/it/data/Book.xml"/>

</sqlMapConfig>

Book.xml

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE sqlMap      
    PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"      
    "http://ibatis.apache.org/dtd/sql-map-2.dtd">

<sqlMap namespace="Book">

  <typeAlias alias="Book" type="com.it.domain.Book"/>

  <resultMap id="BookResult" class="Book">
    <result property="id" column="id"/>
    <result property="title" column="title"/>
    <result property="author" column="author"/>
    <result property="price" column="price"/>
    <result property="yr" column="yr"/>
    <result property="description" column="description"/>
    <result property="saleAmount" column="saleAmount"/>
  </resultMap>

  <select id="selectAllBooks" resultMap="BookResult">
    select * from Book
  </select>

  <select id="selectBookById" parameterClass="int" resultClass="Book">
    select * from Book where id = #id#
  </select>
   
  <insert id="insertBook" parameterClass="Book">
    insert into Book (
      id,
      title,
      author,
      price,
      yr,
      description,
      saleAmount)
    values (
      #id#, #title#, #author#, #price#, #yr#, #description#, #saleAmount#
    )
  </insert>

  <update id="updateBook" parameterClass="Book">
    update Book set
      title = #title#,
      author = #author#,
      price = #price#
    where
      id = #id#
  </update>

  <delete id="deleteBookById" parameterClass="int">
    delete from Book where id = #id#
  </delete>

  <delete id="deleteAllBooks">
  	delete from Book
  </delete>
</sqlMap>

BookDAO.java

package com.it.dao;

import java.io.IOException;
import java.io.Reader;
import java.sql.SQLException;
import java.util.List;

import com.ibatis.common.resources.Resources;
import com.ibatis.sqlmap.client.SqlMapClient;
import com.ibatis.sqlmap.client.SqlMapClientBuilder;
import com.it.domain.Book;

public class BookDAO {

	private static SqlMapClient sqlmap ;
	
	static {
		Reader reader = null;
		try {
			reader = Resources.getResourceAsReader("com/it/data/SqlMapConfig.xml");
			sqlmap = SqlMapClientBuilder.buildSqlMapClient(reader);
			reader.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public void insertBook(Book book) throws SQLException {
		sqlmap.insert("insertBook", book);
	}
	
	public void deleteBook(int id) throws SQLException {
		sqlmap.delete("deleteBookById", id);
	}
	
	public void deleteAllBooks() throws SQLException {
		sqlmap.delete("deleteAllBooks");
	}
	
	public void updateBook(Book book) throws SQLException {
		sqlmap.update("updateBook", book);
	}
	
	@SuppressWarnings("unchecked")
	public List getAllBooks() throws SQLException {
		return sqlmap.queryForList("selectAllBooks");
	}
	
	public Book getBookById(int id) throws SQLException {
		return (Book) sqlmap.queryForObject("selectBookById", id);
	}
}

测试类BookTest.java

package com.it.test;

import java.sql.SQLException;
import java.util.Iterator;
import java.util.List;

import com.it.dao.BookDAO;
import com.it.domain.Book;

public class BookTest {

	@SuppressWarnings("unchecked")
	public static void main(String[] args) throws SQLException {
		BookDAO dao = new BookDAO();
		List list = dao.getAllBooks();
		for (Iterator it = list.iterator(); it.hasNext();) {
			Book book = (Book) it.next();
			System.out.println("id=" + book.getId());
			System.out.println("title=" + book.getTitle());
			System.out.println("author=" + book.getAuthor());
			System.out.println("yr=" + book.getYr());
			System.out.println("price=" + book.getPrice());
			System.out.println("descrption=" + book.getDescription());
			System.out.println("saleAmount=" + book.getSaleAmount());
			System.out.println("------------------------------------------------------------------------");
		}
		
		
	}

}

评论

2 楼 jwinder 2009-08-10  

书上拿来用一下，这是笔记？

1 楼 maomiandyou 2009-08-10  

其实这个帖子完全没有必要发到论坛来
仅是个人意见