最简单的mybatis增删改查样例

最简单的mybatis增删改查样例 
Book.java

1. package com.bookstore.app;
2. import java.io.Serializable;
3. public class Book implements Serializable {
4. private static final long serialVersionUID = 233559895466038160L;
5. private String isbn;
6. private String name;
7. private String price;
8. public String getIsbn() {
9. return isbn;
10. }
11. public void setIsbn(String isbn) {
12. this.isbn = isbn;
13. }
14. public String getPrice() {
15. return price;
16. }
17. public void setPrice(String price) {
18. this.price = price;
19. }
20. public void setName(String name) {
21. this.name = name;
22. }
23. public String getName() {
24. return name;
25. }
26. @Override
27. public String toString() {
28. return "BookName: " + this.name + ", price: " + this.price;
29. }
30. }

mybatis-config.xml

1. <?xml version="1.0" encoding="UTF-8"?>
2. <!DOCTYPE configuration
3. PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
4. "http://mybatis.org/dtd/mybatis-3-config.dtd">
5. <configuration>
6. <settings>
7. <setting name="lazyLoadingEnabled" value="false" />
8. </settings>
9. <typeAliases>
10. <typeAlias alias="Book" type="com.bookstore.app.Book" />
11. </typeAliases>
12. <environments default="development">
13. <environment id="development">
14. <transactionManager type="JDBC" />
15. <dataSource type="POOLED">
16. <property name="driver" value="com.mysql.jdbc.Driver" />
17. <property name="url" value="jdbc:mysql://localhost:3306/mybatis" />
18. <property name="username" value="root" />
19. <property name="password" value="root" />
20. </dataSource>
21. </environment>
22. </environments>
23. <mappers>
24. <mapper resource="com/bookstore/config/bookMapper.xml" />
25. </mappers>
26. </configuration>

bookMapper.xml

1. <?xml version="1.0" encoding="UTF-8"?>
2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
3. "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
4. <mapper namespace="com.bookstore.app.bookMapper">
5. <select id="getBookByName" resultType="Book" parameterType="string">
6. select *
7. from book
8. where name=#{name}
9. </select>
10. <insert id="insertBook" parameterType="Book">
11. insert into book(isbn, name, price)
12. value(#{isbn}, #{name}, #{price})
13. </insert>
14. <update id="updateBook" parameterType="Book">
15. update book
16. set
17. name=#{name},
18. price=#{price}
19. where isbn=#{isbn}
20. </update>
21. <delete id="deleteBook" parameterType="String">
22. delete from book where name=#{name}
23. </delete>
24. </mapper>

BookApp.java

1. package com.bookstore.app;
2. import java.io.IOException;
3. import java.io.Reader;
4. import org.apache.ibatis.io.Resources;
5. import org.apache.ibatis.session.SqlSession;
6. import org.apache.ibatis.session.SqlSessionFactory;
7. import org.apache.ibatis.session.SqlSessionFactoryBuilder;
8. public class BookApp {
9. public static void main(String[] args) throws IOException {
10. String resource = "com/bookstore/config/mybatis-config.xml";
11. Reader reader = Resources.getResourceAsReader(resource);
12. SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder()
13. .build(reader);
14. SqlSession session = sessionFactory.openSession();
15. //查询
16. Book book = (Book) session.selectOne(
17. "com.bookstore.app.bookMapper.getBookByName", "Spring In Action");
18. System.out.println(book.toString());
19. //修改
20. book.setName("Spring In Action 2ed Edition");
21. book.setPrice("59");
22. session.update("com.bookstore.app.bookMapper.updateBook", book);
23. //插入
24. Book newBook = new Book();
25. newBook.setIsbn("ISBN978-7-121-10577-7");
26. newBook.setName("人人都是产品经理");
27. newBook.setPrice("45");
28. session.insert("com.bookstore.app.bookMapper.insertBook", newBook);
29. //删除
30. session.delete("com.bookstore.app.bookMapper.deleteBook", "Struts In Action");
31. session.commit();
32. }
33. }