iBATIS实现的一个例子

来源：百度文库编辑：神马文学网时间：2024/07/06 00:29:03

这里把我学习ibatis时候，一个实现的例子发上来，供参考。工程目录结构如下： //1、SQL MAP配置文件SqlMapConfig.xml
    PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
    "http://www.ibatis.com/dtd/sql-map-config-2.dtd">

           enhancementEnabled="true"
        lazyLoadingEnabled="true"
        errorTracingEnabled="true"
        maxRequests="32"
        maxSessions="10"
        maxTransactions="5"
        useStatementNamespaces="false" />














//2、SQL Map配置文件拥有唯一的元素，这样做后，在属性文件中定义的属性可以作为变量在SQL Map配置文件及其包含的所有SQL Map映射文件中引用SqlMapConfig.xmldriver=com.microsoft.jdbc.sqlserver.SQLServerDriver
url=jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=ibatistest;SelectMethod=Cursor;username=xiaofeng
password=xiaofeng//3、SQL Map XML映射person.xml
PUBLIC "-//iBATIS.com//DTD SQL Map 2.0//EN"
"http://www.ibatis.com/dtd/sql-map-2.dtd">

INSERT INTO
STUDENT (Sno,Sname,Ssex,Sage,Sdept)
VALUES (#sno#,#sname#,#ssex#,#sage#,#sdept#)

UPDATE STUDENT
SET Sname= #sname#,
Ssex= #ssex#,
Sage=#sage#,
Sdept=#sdept#
WHERE Sno = #sno#

DELETE STUDENT
WHERE Sno = #sno#

//４、AppSqlConfig.javapackage com.study.xiaofeng;
import com.ibatis.sqlmap.client.SqlMapClient;
import java.io.Reader;
import com.ibatis.common.resources.*;
import com.ibatis.sqlmap.client.SqlMapClientBuilder;public class AppSqlConfig {
private static final SqlMapClient sqlMap;
static {
try {
String resource ="com/study/xiaofeng/maps/SqlMapConfig.xml";
Reader reader = Resources.getResourceAsReader (resource);
sqlMap = SqlMapClientBuilder.buildSqlMapClient(reader);
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException ("Error initializing MyAppSqlConfig class. Cause: "+e);
}
}
public static SqlMapClient getSqlMapInstance () {
   return sqlMap;
}
}
//test.javapackage com.study.xiaofeng;
import com.ibatis.sqlmap.client.SqlMapClient;
import java.sql.*;
import java.util.List;
//JTA
import javax.naming.InitialContext;
import javax.transaction.UserTransaction;
public class Test {
    public static void update(int no,String name,String sex,int age,String dept){
     com.ibatis.sqlmap.client.SqlMapClient client = null;
     try{
          client=new AppSqlConfig().getSqlMapInstance();
       client.startTransaction();
       Student student=new Student();
       student.setSno(no);
       student.setSname(name);
       student.setSsex(sex);
       student.setSage(age);
       student.setSdept(dept);
       client.update("updateStudent",student);
       client.commitTransaction();
     }catch(SQLException e){
         System.out.println(e.getMessage());
     }finally {
   try {
    client.endTransaction();
   } catch (SQLException e) {
    e.printStackTrace();
   }
}
    }
    public static void insertStudent(int no,String name,String sex,int age,String dept){
     com.ibatis.sqlmap.client.SqlMapClient client = null;
     try{
      client=new AppSqlConfig().getSqlMapInstance();
   client.startTransaction();
   Student student=new Student();
   student.setSno(no);
   student.setSname(name);
   student.setSsex(sex);
   student.setSage(age);
   student.setSdept(dept);
   client.insert("insertStudent",student);
   client.commitTransaction();
}catch(SQLException e){
     System.out.println(e.getMessage());
}finally {
try {
   client.endTransaction();
} catch (SQLException e) {
   e.printStackTrace();
}
}

    }
    //一个对象直接作为属性，实现关联
    public static Student getStudent(){
     com.ibatis.sqlmap.client.SqlMapClient client = null;
Student student=null;
     try{
          client=new AppSqlConfig().getSqlMapInstance();
        client.startTransaction();
       student = (Student)client.queryForObject("getStudent","xiaofeng");
       client.commitTransaction();
     }catch(SQLException e){
         System.out.println(e.getMessage());
     }finally{
   try {
    client.endTransaction();
   } catch (SQLException e) {
    e.printStackTrace();
   }
}
     return student;
    }
    //多个对象放到List中作为一个属性实现关联，但是得嵌套查询。测试一对多的关联查询
    //也可以实现多对多
    public static void reStudent(String name){
     com.ibatis.sqlmap.client.SqlMapClient sqlMap = null;
     sqlMap=new AppSqlConfig().getSqlMapInstance();
     try{
       sqlMap.startTransaction();
       List studentList=sqlMap.queryForList("getStudent",name);

       for(int i=0;i        Student student=(Student)studentList.get(i);
        System.out.println("姓名（表1）："+student.getSname());
        for(int k=0;k         SC sc=(SC)student.getSc().get(k);
         Course course=(Course)sqlMap.queryForObject("getCourse", sc.getCno());
         System.out.print("课程号（表2）："+sc.getCno());
         System.out.print("------课程名（表3）："+course.getCname().trim()+"------分数（表2）: "+sc.getGrade()+"\n");

         }
       }

      sqlMap.commitTransaction();
    }catch(SQLException e){
        System.out.println(e.getMessage());
    }finally{
try {
   sqlMap.endTransaction();
} catch (SQLException e) {
   e.printStackTrace();
}
}
    }

    public static void main(String args[]){
//    update(2004131301,"xiaofeng","男",23,"信息");
        reStudent("name2");
        Student student=getStudent();
     System.out.println("表4 描述："+student.getIntro().getIdescription());

    // insertStudent(2004131305,"xiaofeng5","男",23,"信息"); ;

    }

}//Course.javapackage com.study.xiaofeng;
import java.io.Serializable;
public class Course implements Serializable{
    private int cno;
    private String cname;
    private int ccredit;

    public int getCno(){
     return this.cno;
    }
    public void setCno(int no){
     this.cno=no;
    }
    public String getCname(){
     return this.cname;
    }
    public void setCname(String name){
     this.cname=name;
    }
    public int getCcredit(){
     return this.ccredit;
    }
    public void setCcredit(int credit){
     this.ccredit=credit;
    }
}
//Intro.javapackage com.study.xiaofeng;
import java.io.Serializable;
public class Intro implements Serializable{
private int sno;
private String idescription;

public int getSno(){
return this.sno;
}
public void setSno(int sno){
this.sno=sno;
}
public String getIdescription(){
return this.idescription;
}
public void setIdescription(String description){
this.idescription=description;
}
}
//Sc.javapackage com.study.xiaofeng;
import java.io.Serializable;
public class SC implements Serializable{
    private int sno;
    private int cno;
    private int grade;
    private Course course;

    public int getSno(){
     return this.sno;
    }
    public void setSno(int no){
     this.sno=no;
    }
    public int getCno(){
     return this.cno;
    }
    public void setCno(int no){
     this.cno=no;
    }
    public int getGrade(){
     return this.grade;
    }
    public void setGrade(int grade){
     this.grade=grade;
    }
    public Course getCourse(){
     return this.course;
    }
    public void setCourse(Course course){
     this.course=course;
    }
}
//Student.javapackage com.study.xiaofeng;
import java.io.Serializable;
import java.util.List;
public class Student implements Serializable{
    private int sno;
    private String sname;
    private String ssex;
    private int sage;
    private String sdept;
    private List sc;
    private Intro intro;
    public int getSno(){
     return this.sno;
    }
    public void setSno(int no){
     this.sno=no;
    }
    public String getSname(){
     return this.sname;
    }
    public void setSname(String name){
     this.sname=name;
    }
    public String getSsex(){
     return this.ssex;
    }
    public void setSsex(String sex){
     this.ssex=sex;
    }
    public int getSage(){
     return this.sage;
    }
    public void setSage(int age){
     this.sage=age;
    }
    public String getSdept(){
     return this.sdept;
    }
    public void setSdept(String dept){
     this.sdept=dept;
    }
    public List getSc(){
     return this.sc;
    }
    public void setSc(List sc){
     this.sc=sc;
    }
    public Intro getIntro(){
     return this.intro;
    }
    public void setIntro(Intro intro){
     this.intro=intro;
    }
}
//运行结果如下：  本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/ice_spar/archive/2007/05/18/1615546.aspx

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