Ibatis + MySql+Java实例详解

 

将以下jar包加入到工程，ibatis-2.3.0.677.jar和mysql-connector-java-5.0.8.jar。

 

属性文件:SqlMap.properties

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/test
username=root
password=root

 

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>
	<properties resource="iBatis/entity/SqlMap.properties" />
	<transactionManager type="JDBC">
	<dataSource type="SIMPLE">
		<property name="JDBC.Driver" value="${driver}" />
		<property name="JDBC.ConnectionURL" value="${url}" />
		<property name="JDBC.Username" value="${username}" />
		<property name="JDBC.Password" value="${password}"/>
	</dataSource>
	</transactionManager>
	<sqlMap resource="iBatis/entity/Student.xml" />
</sqlMapConfig>

Student.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>
  <typeAlias alias="Student" type="iBatis.entity.Student"/>
      <select id="selectAllStudent" resultClass="Student">
         select * from tb_student
     </select>
     <select id="selectStudentById" parameterClass="int" resultClass="Student">
     select * from tb_student where id=#id#
     </select>
      <select id="selectStudentByName" parameterClass="String" resultClass="Student">
         select id,name,birth,score from tb_student where name like '%$name$%'
     </select>
     <insert id="addStudent" parameterClass="Student">
         insert into tb_student (name,birth,score) values (#name#,#birth#,#score#)
         <selectKey resultClass="int" keyProperty="id">
             select @@identity as inserted
         </selectKey>
     </insert>
     <delete id="deleteStudentById" parameterClass="int">
         delete from tb_student where id=#id#
     </delete>
     <update id="updateStudent" parameterClass="Student">
         update tb_student set name=#name#,birth=#birth#,score=#score# where id=#id#
     </update>
 </sqlMap>

Student.java

package iBatis.entity;

import java.sql.Date;

public class Student {
	private int id;
	private String name;
	private Date birth;
	private float score;

	public Student() {
	}

	public int getId() {
		return id;
	}

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

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Date getBirth() {
		return birth;
	}

	public void setBirth(Date birth) {
		this.birth = birth;
	}

	public float getScore() {
		return score;
	}

	public void setScore(float score) {
		this.score = score;
	}

	@Override
	public String toString() {
		return "id=" + id + "\t name=" + name + "\t birth=" + birth
				+ "\t score=" + score + "\n";
	}

}

IStudentDao.java

package iBatis.dao;

import java.util.List;
import iBatis.entity.Student;

public interface IStudentDao {
	/*
	 * 添加学生信息
	 */
	public boolean addStudent(Student student);

	/*
	 * 根据id删除学生信息
	 */
	public boolean deleteStudentById(int id);

	/*
	 * 更新学生信息
	 */
	public boolean updateStudent(Student student);

	/*
	 * 查询全部学生信息
	 */
	public List<Student> selectAllStudent();

	/*
	 * 根据学生姓名模糊查询学生信息
	 */
	public List<Student> selectStudentByName(String name);

	/*
	 * 根据学生id查询学生信息
	 */
	public Student selectStudentById(int id);

}

StudentDaoImpl.java

package iBatis.daoimpl;

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 iBatis.dao.IStudentDao;
import iBatis.entity.Student;

public class StudentDaoImpl implements IStudentDao {
	private static SqlMapClient sqlMapClient = null;

	// 读取配置文件
	static {
		try {
			Reader reader = Resources
					.getResourceAsReader("iBatis/entity/SqlMapConfig.xml");
			sqlMapClient = SqlMapClientBuilder.buildSqlMapClient(reader);
			reader.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public boolean addStudent(Student student) {
		Object object = null;
		boolean flag = false;
		try {
			object = sqlMapClient.insert("addStudent", student);
			// System.out.println("添加学生信息的返回值:" + object);
		} catch (SQLException e) {
			e.printStackTrace();
		}
		if (object != null) {
			flag = true;
		}
		return flag;
	}

	public boolean deleteStudentById(int id) {
		boolean flag = false;
		Object object = null;
		try {
			object = sqlMapClient.delete("deleteStudentById", id);
			// System.out.println("删除学生信息的返回值:" + object + ",这里返回的是影响的函数");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		if (object != null) {
			flag = true;
		}
		return flag;
	}

	public boolean updateStudent(Student student) {
		boolean flag = false;
		Object object = false;
		try {
			object = sqlMapClient.update("updateStudent", student);
			// System.out.println("更新学生信息的返回值:" + object );
		} catch (SQLException e) {
			e.printStackTrace();
		}
		if (object != null) {
			flag = true;
		}
		return flag;
	}

	public List<Student> selectAllStudent() {
		List<Student> students = null;
		try {
			students = sqlMapClient.queryForList("selectAllStudent");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return students;
	}

	public List<Student> selectStudentByName(String name) {
		List<Student> students = null;
		try {
			students = sqlMapClient.queryForList("selectStudentByName", name);
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return students;
	}

	public Student selectStudentById(int id) {
		Student student = null;
		try {
			student = (Student) sqlMapClient.queryForObject(
					"selectStudentById", id);
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return student;
	}

}

TestIbatis.java

package iBatis.test;

import java.sql.Date;
import java.util.List;

import iBatis.daoimpl.StudentDaoImpl;
import iBatis.entity.Student;

public class TestIbatis {
	public static void main(String[] args) {
		StudentDaoImpl studentDaoImpl = new StudentDaoImpl();

		// 查询所有
		System.out.println("查询初始数据表：");
		List<Student> list1 = studentDaoImpl.selectAllStudent();
		for (Student student : list1) {
			System.out.println(student);
		}

		// 测试插入
		System.out.println("测试插入：");
		Student addStudent = new Student();
		addStudent.setName("张三");
		addStudent.setBirth(Date.valueOf("2011-09-02"));
		addStudent.setScore(88);
		System.out.println(studentDaoImpl.addStudent(addStudent));

		addStudent.setName("李四");
		addStudent.setBirth(Date.valueOf("1990-08-03"));
		addStudent.setScore(98);
		System.out.println(studentDaoImpl.addStudent(addStudent));

		// 根据Id查询
		System.out.println("根据Id查询：");
		System.out.println(studentDaoImpl.selectStudentById(2));

		// 根据姓名查询
		System.out.println("根据姓名查询：");
		List<Student> list = studentDaoImpl.selectStudentByName("四");
		for (Student student : list) {
			System.out.println(student);
		}

		// 查询所有
		System.out.println("查询修改后数据表：");
		List<Student> list2 = studentDaoImpl.selectAllStudent();
		for (Student student : list2) {
			System.out.println(student);
		}

		// 更新信息
		System.out.println("更新信息：");
		Student updateStudent = new Student();
		updateStudent.setId(1);
		updateStudent.setName("王五");
		updateStudent.setBirth(Date.valueOf("1990-09-07"));
		updateStudent.setScore(24);
		System.out.println(studentDaoImpl.updateStudent(updateStudent));

		// 查询所有
		System.out.println("查询修改后数据表：");
		List<Student> list3 = studentDaoImpl.selectAllStudent();
		for (Student student : list3) {
			System.out.println(student);
		}

		// 删除数据
		System.out.println("删除数据：");
		Boolean b = studentDaoImpl.deleteStudentById(1);
		System.out.println("删除结果:" + b);

		// 查询所有
		System.out.println("查询修改后数据表：");
		List<Student> list4 = studentDaoImpl.selectAllStudent();
		for (Student student : list4) {
			System.out.println(student);
		}
	}
}

转载：http://www.tuicool.com/articles/mQNnYnF