java程序中的ibatis连接mySql的基本实例

1 driver=com.mysql.jdbc.Driver
2 url=jdbc:mysql://localhost:3306/ibatis
3 username=root
4 password=gys

<?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>
<!-- 引用jdbc属性的配置文件 -->
    <properties resource="com/iflytek/entity/SqlMap.properties" />
    <!-- 使用jdbc的事务管理 -->
    <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>
    <!-- 这里可以写多个实体的映射文件 -->
    <sqlMap resource="com/iflytek/entity/Student.xml" />
</sqlMapConfig>

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
 3 "http://ibatis.apache.org/dtd/sql-map-2.dtd">
 4 <sqlMap>
 5     <!-- 通过typeAlias使得我们在下面使用Student实体类的时候不需要写包名 -->
 6     <typeAlias alias="Student" type="com.iflytek.entity.Student"/>
 7     <!-- id表示select里的sql语句，resultClass表示返回结果的类型 -->
 8     <select id="selectAllStudent" resultClass="Student">
 9         select * from tb1_student
10     </select>
11     <select id="selectStudentById" parameterClass="int" resultClass="Student">
12     select * from tb1_student where id=#id#
13     </select>
14     <!-- 注意这里的resultClass类型，使用Student类型取决于queryForList还是queryForObject -->
15     <select id="selectStudentByName" parameterClass="String" resultClass="Student">
16         select name,birth,score from tb1_student where name like ‘%$name$%‘
17     </select>
18     <insert id="addStudent" parameterClass="Student">
19         insert into tb1_student (name,birth,score) values (#name#,#birth#,#score#)
20         <selectKey resultClass="int" keyProperty="id">
21             select @@identity as inserted
22         </selectKey>
23     </insert>
24     <delete id="deleteStudentById" parameterClass="int">
25         delete from tb1_student where id=#id#
26     </delete>
27     <update id="updateStudent" parameterClass="Student">
28         update tb1_student set name=#name#,birth=#birth#,score=#score# where id=#id#
29     </update>
30 </sqlMap>

 1 package com.iflytek.entity;
 2 
 3 import java.sql.Date;
 4 
 5 public class Student {
 6     private int id;
 7     private String name;
 8     private Date birth;
 9     private float score;
10     
11     public Student(){}
12     
13     public int getId() {
14         return id;
15     }
16     public void setId(int id) {
17         this.id = id;
18     }
19     public String getName() {
20         return name;
21     }
22     public void setName(String name) {
23         this.name = name;
24     }
25     public Date getBirth() {
26         return birth;
27     }
28     public void setBirth(Date birth) {
29         this.birth = birth;
30     }
31     public float getScore() {
32         return score;
33     }
34     public void setScore(float score) {
35         this.score = score;
36     }
37     @Override
38     public String toString(){
39         return "id="+id+"\t name"+name+"\t ajor="+birth+"\t score="+score+"\n";
40     }
41     
42 }

 1 package com.iflytek.dao;
 2 
 3 import java.util.List;
 4 
 5 import com.iflytek.entity.Student;
 6 
 7 public interface IStudentDao {
 8     /*
 9      * 添加学生信息
10      */
11     public boolean addStudent(Student student);
12     /*
13      * 根据id删除学生信息
14      */
15     public boolean deleteStudentById(int id);
16     /*
17      * 更新学生信息
18      */
19     public boolean updateStudent(Student student);
20     /*
21      * 查询全部学生信息
22      */
23     public List<Student> selectAllStudent();
24     
25     /*
26      * 根据学生姓名模糊查询学生信息
27      */
28     public List<Student> selectStudentByName(String name);
29     /*
30      * 根据学生id查询学生信息
31      */
32     public Student selectStudentById(int id);
33     
34 }

  1 package com.iflytek.daoimpl;
  2 
  3 import java.io.IOException;
  4 import java.io.Reader;
  5 import java.sql.SQLException;
  6 import java.util.List;
  7 
  8 import com.ibatis.common.resources.Resources;
  9 import com.ibatis.sqlmap.client.SqlMapClient;
 10 import com.ibatis.sqlmap.client.SqlMapClientBuilder;
 11 import com.iflytek.dao.IStudentDao;
 12 import com.iflytek.entity.Student;
 13 
 14 public class StudentDaoImpl implements IStudentDao {
 15     private static SqlMapClient sqlMapClient = null;
 16 
 17     // 读取配置文件
 18     static {
 19         try {
 20             Reader reader = Resources.getResourceAsReader("com/iflytek/entity/SqlMapConfig.xml");
 21             sqlMapClient = SqlMapClientBuilder.buildSqlMapClient(reader);
 22             reader.close();
 23         } catch (IOException e) {
 24             e.printStackTrace();
 25         }
 26     }
 27 
 28     public boolean addStudent(Student student) {
 29         Object object = null;
 30         boolean flag = false;
 31         try {
 32             object = sqlMapClient.insert("addStudent", student);
 33             System.out.println("添加学生信息的返回值:" + object);
 34         } catch (SQLException e) {
 35             e.printStackTrace();
 36         }
 37         if (object != null) {
 38             flag = true;
 39         }
 40         return flag;
 41     }
 42 
 43     public boolean deleteStudentById(int id) {
 44         boolean flag = false;
 45         Object object = null;
 46         try {
 47             object = sqlMapClient.delete("deleteStudentById", id);
 48             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");
 49         } catch (SQLException e) {
 50             // TODO Auto-generated catch block
 51             e.printStackTrace();
 52         }
 53         if (object != null) {
 54             flag = true;
 55         }
 56         return flag;
 57     }
 58 
 59     public boolean updateStudent(Student student) {
 60         boolean flag = false;
 61         Object object = false;
 62         try {
 63             object = sqlMapClient.update("updateStudent", student);
 64             System.out.println("更新学生信息的返回值:" + object + ",返回影响的行数");
 65         } catch (SQLException e) {
 66             e.printStackTrace();
 67         }
 68         if(object!=null){
 69             flag=true;
 70         }
 71         return flag;
 72     }
 73 
 74     public List<Student> selectAllStudent() {
 75         List<Student> students=null;
 76         try {
 77             students=sqlMapClient.queryForList("selectAllStudent");
 78         } catch (SQLException e) {
 79             // TODO Auto-generated catch block
 80             e.printStackTrace();
 81         }
 82         return students;
 83     }
 84 
 85     public List<Student> selectStudentByName(String name) {
 86         List<Student> students=null;
 87         try {
 88             students=sqlMapClient.queryForList("selectStudentByName", name);
 89         } catch (SQLException e) {            
 90             e.printStackTrace();
 91         }
 92         return students;
 93     }
 94 
 95     public Student selectStudentById(int id) {
 96         Student student=null;
 97         try {
 98             student=(Student)sqlMapClient.queryForObject("selectStudentById",id);
 99         } catch (SQLException e) {            
100             e.printStackTrace();
101         }
102         return student;
103     }
104 
105 }

 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 public class TestIbatis {
10     public static void main(String[] args) {
11         StudentDaoImpl studentDaoImpl=new StudentDaoImpl();
12         
13         //测试插入
14         Student addStudent=new Student();
15         addStudent.setName("李四");
16         addStudent.setBirth(Date.valueOf("2011-09-02"));
17         addStudent.setScore(88);
18         System.out.println(studentDaoImpl.addStudent(addStudent));        
19                 
20         addStudent.setName("李四2");
21         addStudent.setBirth(Date.valueOf("1990-09-02"));
22         addStudent.setScore(98);
23         System.out.println(studentDaoImpl.addStudent(addStudent));
24         //根据Id查询
25         System.out.println(studentDaoImpl.selectStudentById(2));
26         
27         //根据姓名查询
28         List<Student> list=studentDaoImpl.selectStudentByName("四");
29         for(Student student:list){
30             System.out.println(student);
31         }
32         
33         //查询所有
34         List<Student> list=studentDaoImpl.selectAllStudent();
35         for(Student student:list){
36             System.out.println(student);
37         }
38         
39         //更新信息
40         Student updateStudent=new Student();
41         updateStudent.setId(1);
42         updateStudent.setName("李四1+");
43         updateStudent.setBirth(Date.valueOf("1990-09-07"));
44         updateStudent.setScore(24);
45         System.out.println(studentDaoImpl.updateStudent(updateStudent));
46         
47         //删除数据
48         Boolean b=studentDaoImpl.deleteStudentById(1);
49         System.out.println("删除结果:"+b);
50         
51     }    
52 }