1.ibatIS的基本使用方法,这里通过一个例子来学习
a.创梦技术qq交流群：CreDream：251572072
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a.新建IbatisTest项目
/IbatisTest/src/com/credream/test/testimpl.java
package com.credream.test;
import java.sql.Date;
import com.credream.IStudentDao;
import com.credream.IStudentDaoImpl;
import com.credream.Student;
public class testimpl {
public static void main(String[] args) {
IStudentDao dao=new IStudentDaoImpl();
//测试queryAllStudent()方法
/*for (Student student:dao.queryAllStudent()) {
System.out.println(student);
}*/
//测试queryStudentById()方法
/*System.out.println("id is 1:"+dao.queryStudentById(1));*/
//测试addStudent(Student student) 方法
/*Student student=new Student();
student.setSid(4);
student.setSname("xushu");
student.setMajor("games");
student.setBirth(Date.valueOf("2012-12-22"));
student.setScore((float) 18.5);
dao.addStudent(student);*/
//测试delteStudentById(int id)方法
//dao.delteStudentById(3);
//测试updateStudentById(Student student) 方法;
/*Student student=new Student();
student.setSid(4);
student.setSname("xushen");
student.setMajor("games");
student.setBirth(Date.valueOf("2012-12-22"));
student.setScore((float) 18.5);
dao.updateStudentById(student);*/
//测试queryStudentByName(String name)方法
/*List<Student> students=dao.queryStudentByName("x");
for(Student student:students){
System.out.println(student);
}*/
//测试:addStudentBySequence(Student student) 方法
Student student=new Student();
student.setSid(4);
student.setSname("xushen");
student.setMajor("games");
student.setBirth(Date.valueOf("2012-12-22"));
student.setScore((float) 18.5);
dao.addStudentBySequence(student);
}
}
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2./IbatisTest/src/com/credream/util/DButil.java
package com.credream.util;
public class DButil {
}
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3./IbatisTest/src/com/credream/IStudentDao.java
package com.credream;
import java.util.List;
public interface IStudentDao {
public void addStudent(Student student);
public void addStudentBySequence(Student student);
public void delteStudentById(int id);
public void updateStudentById(Student student);
public List<Student> queryAllStudent();
public List<Student> queryStudentByName(String name);
public Student queryStudentById(int id);
}
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4./IbatisTest/src/com/credream/IStudentDaoImpl.java
package com.credream;
import java.io.IOException;
import java.io.Reader;
import java.sql.SQLException;
import java.util.List;
import com.ibatis.sqlmap.client.SqlMapClient;
public class IStudentDaoImpl implements IStudentDao {
private static SqlMapClient sqlMapClient=null;
static{
Reader reader;
try {
reader = com.ibatis.common.resources.Resources.getResourceAsReader("com/credream/SqlMapConfig.xml");
sqlMapClient=com.ibatis.sqlmap.client.SqlMapClientBuilder.buildSqlMapClient(reader);
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public void addStudent(Student student) {
try {
sqlMapClient.insert("insertStudent", student);
} catch (SQLException e) {
e.printStackTrace();
}
}
public void addStudentBySequence(Student student) {
try {
//1.从数据库序列中获取主键值
//2.让student表中插入记录
sqlMapClient.insert("insertStudentBySequence", student);
System.out.println("sid="+student.getSid());
} catch (SQLException e) {
e.printStackTrace();
}
}
public void delteStudentById(int id) {
try {
System.out.println("开始删除....");
System.out.println(sqlMapClient.delete("delteStudentById", id));
System.out.println("删除成功...");
} catch (SQLException e) {
e.printStackTrace();
}
}
public List<Student> queryAllStudent() {
List<Student> studentList=null;
try {
studentList=sqlMapClient.queryForList("selectAllStudent");
} catch (SQLException e) {
e.printStackTrace();
}
return studentList;
}
public Student queryStudentById(int id) {
Student student=null;
try {
student=(Student) sqlMapClient.queryForObject("selectStudentById",id);
} catch (SQLException e) {
e.printStackTrace();
}
return student;
}
public List<Student> queryStudentByName(String name) {
List<Student> students=null;
try {
students=sqlMapClient.queryForList("queryStudentByName",name);
} catch (SQLException e) {
e.printStackTrace();
}
return students;
}
public void updateStudentById(Student student) {
try {
System.out.println(sqlMapClient.update("updateStudentById", student));
} catch (SQLException e) {
e.printStackTrace();
}
}
}
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5./IbatisTest/src/com/credream/Student.java
package com.credream;
import java.util.Date;
public class Student {
/**
* 这个地方最好不要覆盖父类的构造方法
*/
private int sid=0;
private String sname=null;
private String major=null;
private Date birth=null;
private float score=0;
public int getSid() {
return sid;
}
public void setSid(int sid) {
this.sid = sid;
}
public String getSname() {
return sname;
}
public void setSname(String sname) {
this.sname = sname;
}
public String getMajor() {
return major;
}
public void setMajor(String major) {
this.major = major;
}
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() {
String content="sid="+sid+"/sname"+sname+"tmajor:"+major+"birth:"+
birth;
return content;
}
}
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6./IbatisTest/src/com/credream/SqlMap.propertiesdriver=com.mysql.jdbc.Driver
url=jdbc\:mysql\://localhost\:3306/test
username=root
password=1234
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7./IbatisTest/src/com/credream/SqlMapConfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
"http://www.ibatis.com/dtd/sql-map-config-2.dtd">
<!--<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
"http://ibatis.apache.org/dtd/sql-map-2.dtd">
-->
<sqlMapConfig>
<properties resource="com/credream/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="com/credream/Student.xml"/>
</sqlMapConfig>
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8./IbatisTest/src/com/credream/Student.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMap PUBLIC "-//iBATIS.com//DTD SQL Map 2.0//EN" "http://www.ibatis.com/dtd/sql-map-2.dtd">
<sqlMap>
<typeAlias alias="Student" type="com.credream.Student"/>
<select id="selectAllStudent" resultClass="Student">
select * from student;
</select>
<select id="selectStudentById" parameterClass="int" resultClass="Student">
select * from student where sid=#sid#
</select>
<insert id="insertStudent" parameterClass="Student">
insert into Student (sid,sname,major,birth,score)values (#sid#,#sname#,#major#,#birth#,#score#)
</insert>
<delete id="delteStudentById" parameterClass="int">
delete from student where sid=#sid#
</delete>
<update id="updateStudentById" parameterClass="student">
update Student set sname=#sname#,major=#major#,score=#score#,birth=#birth#
where sid=#sid#
</update>
<select id="queryStudentByName" parameterClass="string" resultClass="Student">
select sid,sname,major,birth,score from student where sname like '%$sname$%'
</select>
<insert id="insertStudentBySequence" parameterClass="Student">
<selectKey resultClass="int" keyProperty="sid">
select studentPKSequence.netVal from dual
</selectKey>
insert into student(sid,sname,birth,major,score)values(#sid#,#sname#,
#birth#,#major#,#score#)
</insert>
</sqlMap>
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9.G:\javalib\mysqldriver\mysql-connector-java-5.1.16-bin.jar
G:\javalib\ibatis\ibatis-2.3.0.677.jar
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2.原理理解:
a.创梦技术qq交流群：CreDream：251572072
iBATIS对于工程是不是最好的选择
iBATIS是一种数据映射工具。它的作用就在把数据库查询与对象的属性间建立映射关系。如果将要开发的工程是基于业务对象（包括映射或
数据字典对象），那么iBATIS可以算是个好的选择。当应用程序进行分层设计实现时，它更是个好的选择，这样的话，业务层就可以和用户界面
层分开。
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3.private static SqlMapClient sqlMapClient=null;
static{
Reader reader;
try {
reader = com.ibatis.common.resources.Resources.getResourceAsReader("com/credream/SqlMapConfig.xml");
sqlMapClient=com.ibatis.sqlmap.client.SqlMapClientBuilder.buildSqlMapClient(reader);
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
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4.public void addStudent(Student student) {
try {
sqlMapClient.insert("insertStudent", student);
} catch (SQLException e) {
e.printStackTrace();
}
}
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public List<Student> queryAllStudent() {
List<Student> studentList=null;
try {
studentList=sqlMapClient.queryForList("selectAllStudent");
} catch (SQLException e) {
e.printStackTrace();
}
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