java程序中的ibatis连接mySql的基本实例

属性文件:SqlMap.properties

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

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>
<!-- 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>

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>
     <!-- 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 -->
     <typeAlias alias="Student" type="com.iflytek.entity.Student"/>
     <!-- id表示select里的sql语句，resultClass表示返回结果的类型,并且格式化时间 -->
     <select id="selectAllStudent" resultClass="Student">
         select Id,name,DATE_FORMAT(birth,'%Y-%m-%d %H:%i:%S') as birth,score from tb1_student
     </select>
     <select id="selectStudentById" parameterClass="int" resultClass="Student">
     select * from tb1_student where id=#id#
     </select>
     <!-- 注意这里的resultClass类型，使用Student类型取决于queryForList还是queryForObject -->
     <select id="selectStudentByName" parameterClass="String" resultClass="Student">
         select name,birth,score from tb1_student where name like '%$name$%'
     </select>
     <insert id="addStudent" parameterClass="Student">
         insert into tb1_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 tb1_student where id=#id#
     </delete>
     <update id="updateStudent" parameterClass="Student">
         update tb1_student set name=#name#,birth=#birth#,score=#score# where id=#id#
     </update>
 </sqlMap>

Student.java

 package com.iflytek.entity;

 import java.sql.Date;

 public class Student {
     private int id;
     private String name;
     private String 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 String getBirth() {
         return birth;
     }
     public void setBirth(String 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 ajor="+birth+"\t score="+score+"\n";
     }

 }

IStudentDao.java

 package com.iflytek.dao;

 import java.util.List;

 import com.iflytek.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 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.IStudentDao;
 import com.iflytek.entity.Student;

 public class StudentDaoImpl implements IStudentDao {
     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 + ",返回影响的行数");
         } 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 com.iflytek.test;

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

 import com.iflytek.daoimpl.StudentDaoImpl;
 import com.iflytek.entity.Student;

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

         //测试插入
         Student addStudent=new Student();
         addStudent.setName("李四");
         addStudent.setBirth(Date.valueOf("2011-09-02"));
         addStudent.setScore(88);
         System.out.println(studentDaoImpl.addStudent(addStudent));        

         addStudent.setName("李四2");
         addStudent.setBirth(Date.valueOf("1990-09-02"));
         addStudent.setScore(98);
         System.out.println(studentDaoImpl.addStudent(addStudent));
         //根据Id查询
         System.out.println(studentDaoImpl.selectStudentById(2));

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

         //查询所有
         List<Student> list=studentDaoImpl.selectAllStudent();
         for(Student student:list){
             System.out.println(student);
         }

         //更新信息
         Student updateStudent=new Student();
         updateStudent.setId(1);
         updateStudent.setName("李四1+");
         updateStudent.setBirth(Date.valueOf("1990-09-07"));
         updateStudent.setScore(24);
         System.out.println(studentDaoImpl.updateStudent(updateStudent));

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

     }
 }