搭建iBatis 开发环境:
1 、导入相关的jar 包,ibatis-2.3.0.677.jar 、mysql-connector-java-5.1.6-bin.jar
2 、编写配置文件:
Jdbc 连接的属性文件 SqlMap.properties
总配置文件, SqlMapConfig.xml
关于每个实体的映射文件(Map 文件)
Demo :
Student.java:
package com.iflytek.entity;import java.sql.Date;/** * @author xudongwang 2011-12-31 * * Email:xdwangiflytek@gmail.com * */public class Student { // 注意这里需要保证有一个无参构造方法,因为包括Hibernate在内的映射都是使用反射的,如果没有无参构造可能会出现问题 private int id; private String name; private Date birth; private float score; 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 + "\tname=" + name + "\tmajor=" + birth + "\tscore=" + score + "\n"; }}
SqlMap.properties :
driver=com.mysql.jdbc.Driverurl=jdbc:mysql://localhost:3306/ibatisusername=rootpassword=123
Student.xml :
insert into tbl_student(name,birth,score) values (#name#,#birth#,#score#); select @@identity as inserted delete from tbl_student where id=#id# update tbl_student set name=#name#,birth=#birth#,score=#score# where id=#id#
说明:
如果xml 中没有ibatis 的提示,则window --> Preference--> XML-->XML Catalog---> 点击add
选择uri URI: 请选择本地文件系统上
iBatisDemo1/WebContent/WEB-INF/lib/sql-map-config-2.dtd 文件;
Key Type: 选择Schema Location;
Key: 需要联网的,不建议使用;
SqlMapConfig.xml :
StudentDao :
package com.iflytek.dao;import java.util.List;import com.iflytek.entity.Student;/** * @author xudongwang 2011-12-31 * * Email:xdwangiflytek@gmail.com * */public interface StudentDao { /** * 添加学生信息 * * @param student * 学生实体 * @return 返回是否添加成功 */ public boolean addStudent(Student student); /** * 根据学生id删除学生信息 * * @param id * 学生id * @return 删除是否成功 */ public boolean deleteStudentById(int id); /** * 更新学生信息 * * @param student * 学生实体 * @return 更新是否成功 */ public boolean updateStudent(Student student); /** * 查询全部学生信息 * * @return 返回学生列表 */ public ListselectAllStudent(); /** * 根据学生姓名模糊查询学生信息 * * @param name * 学生姓名 * @return 学生信息列表 */ public List selectStudentByName(String name); /** * 根据学生id查询学生信息 * * @param id * 学生id * @return 学生对象 */ public Student selectStudentById(int id);}
StudentDaoImpl :
package com.iflytek.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 com.iflytek.dao.StudentDao;import com.iflytek.entity.Student;/** * @author xudongwang 2011-12-31 * * Email:xdwangiflytek@gmail.com * */public class StudentDaoImpl implements StudentDao { private static SqlMapClient sqlMapClient = null; // 读取配置文件 static { try { Reader reader = Resources .getResourceAsReader("com/iflytek/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行数"); } catch (SQLException e) { 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 + ",返回影响的行数"); } catch (SQLException e) { e.printStackTrace(); } if (object != null) { flag = true; } return flag; } public ListselectAllStudent() { List students = null; try { students = sqlMapClient.queryForList("selectAllStudent"); } catch (SQLException e) { e.printStackTrace(); } return students; } public List selectStudentByName(String name) { List 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 :
1 package com.iflytek.test; 2 3 import java.sql.Date; 4 import java.util.List; 5 6 import com.iflytek.daoimpl.StudentDaoImpl; 7 import com.iflytek.entity.Student; 8 9 /**10 * @author xudongwang 2011-12-3111 * 12 * Email:xdwangiflytek@gmail.com13 * 14 */15 public class TestIbatis {16 17 public static void main(String[] args) {18 StudentDaoImpl studentDaoImpl = new StudentDaoImpl();19 20 System.out.println("测试插入");21 Student addStudent = new Student();22 addStudent.setName("李四");23 addStudent.setBirth(Date.valueOf("2011-09-02"));24 addStudent.setScore(88);25 System.out.println(studentDaoImpl.addStudent(addStudent));26 27 System.out.println("测试根据id查询");28 System.out.println(studentDaoImpl.selectStudentById(1));29 30 System.out.println("测试模糊查询");31 ListmohuLists = studentDaoImpl.selectStudentByName("李");32 for (Student student : mohuLists) {33 System.out.println(student);34 }35 36 System.out.println("测试查询所有");37 List students = studentDaoImpl.selectAllStudent();38 for (Student student : students) {39 System.out.println(student);40 }41 42 System.out.println("根据id删除学生信息");43 System.out.println(studentDaoImpl.deleteStudentById(1));44 45 System.out.println("测试更新学生信息");46 Student updateStudent = new Student();47 updateStudent.setId(1);48 updateStudent.setName("李四1");49 updateStudent.setBirth(Date.valueOf("2011-08-07"));50 updateStudent.setScore(21);51 System.out.println(studentDaoImpl.updateStudent(updateStudent));52 53 }54 }