1.user類
package com.itcast.domin;
import java.io.Serializable;
import java.util.Date;
/**
* @datetime 2019/11/29
*/
public class User implements Serializable {
private Integer id;
private String username;
private Date birthday;
private String sex;
private String address;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", username='" + username + '\'' +
", birthday=" + birthday +
", sex='" + sex + '\'' +
", address='" + address + '\'' +
'}';
}
}
2.QuryVo類
package com.itcast.domin;
import java.util.List;
public class QuryVo {
private List<Integer> ids;
private User user;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public List<Integer> getIds() {
return ids;
}
public void setIds(List<Integer> ids) {
this.ids = ids;
}
}
3.IUserDao接口
package com.itcast.dao;
import com.itcast.domin.QuryVo;
import com.itcast.domin.User;
import org.apache.ibatis.annotations.Select;
import javax.jws.soap.SOAPBinding;
import java.util.List;
/**
*
* 用戶持久層接口
*/
public interface IUserDao {
/**
* 查詢所有操作
* @return
*/
/* @Select("select * from user")*/
List<User> findAll();
/**
* 保存用戶(插入一個用戶記錄)
*/
void saveUser(User user);
/**
* 更新用戶
*/
void updateUser(User user);
/**
* 刪除用戶
*/
void deleteUser(Integer id);
/**
* 根據id查詢用戶
*/
User findById(int id);
/**
* 模糊查詢
*/
List<User> findByName(String username);
/**
* 獲取用戶總記錄的條數
*/
int findByCount();
/**
* 根據條件動態查詢內容
* @param user
* @return
*/
List<User> findByCondition(User user);
/**
* 當id的值是34、45、46時,動態查詢用戶,SQL語句中對應的是子查詢in關鍵字
* @param vo
* @return
*/
List<User> findByIds(QuryVo vo);
}
4.SqlMapConfig配置文件
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<!--mybatis的主配置文件 -->
<configuration>
<!--配置環境-->
<environments default="mysql">
<!--配置mysql的環境-->
<environment id="mysql">
<!--配置事務的類型-->
<transactionManager type="JDBC"></transactionManager>
<!--配置數據源(連接池)-->
<dataSource type="POOLED">
<!--配置連接數據庫的4個基本信息-->
<property name="driver" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/eesy"/>
<property name="username" value="root"/>
<property name="password" value="123456"/>
</dataSource>
</environment>
</environments>
<!--指定映射配置文件的位置,映射配置文件指的是每個dao獨立的配置文件-->
<mappers>
<mapper resource="com/itcast/dao/IUserDao.xml"/>
</mappers>
<!-- <mappers> <!–全限定類名–>
<mapper class="com.itcast.dao.IUserDao"/>
</mappers>-->
</configuration>
5.log4j.propreties配置文件
### 設置###
log4j.rootLogger = debug,stdout,D,E
### 輸出信息到控制擡 ###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
### 輸出DEBUG 級別以上的日誌到=E://logs/error.log ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = C://Users//cs//Desktop/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
### 輸出ERROR 級別以上的日誌到=E://logs/error.log ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File = C://Users//cs//Desktop/error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
6.MyBatisTest 測試類
package com.itcast.test;
import com.itcast.dao.IUserDao;
import com.itcast.domin.QuryVo;
import com.itcast.domin.User;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class MybatisTset {
/**
* 入門案例
*/
private InputStream in;
private SqlSession session;
private IUserDao userDao;
@Before
public void init() throws Exception{
//1.讀取配置文件
in= Resources.getResourceAsStream("SqlMapConfig.xml");
//2.創建SqlSeesionFactory工廠
SqlSessionFactoryBuilder builder=new SqlSessionFactoryBuilder();
SqlSessionFactory factory=builder.build(in);
//3.使用工廠生產SqlSession對象
session=factory.openSession();
//4.使用SqlSession 創建Dao接口的代理對象
userDao=session.getMapper(IUserDao.class);
}
@After
public void destory() throws Exception{
//6.釋放資源
session.commit();
session.close();
in.close();
}
@Test
public void testFindAll(){
List<User> users=userDao.findAll();
for (User user:users){
System.out.println(user);
}}
@Test
public void testSaveUser() {
User user=new User();
user.setUsername("saveuser 楊貴妃");
user.setSex("男");
user.setAddress("北京市豐臺區");
user.setBirthday(new Date());
System.out.println(user);
//5.使用代理對象執行方法
userDao.saveUser(user);
session.commit();
System.out.println(user);
}
@Test
public void testUpateUser() {
User user=new User();
user.setId(50);
user.setUsername("秦始皇");
user.setSex("男");
user.setAddress("北京市豐臺區");
user.setBirthday(new Date());
//5.使用代理對象執行方法
userDao.updateUser(user);
}
@Test
public void testDeleteUser() {
//5.使用代理對象執行方法
userDao.deleteUser(54);
}
@Test
public void testFindById() {
//5.使用代理對象執行方法
User user=userDao.findById(50);
System.out.println(user);
}
@Test
public void testFindByName() {
//5.使用代理對象執行方法
List<User> users= userDao.findByName("%王%");
for(User user:users){
System.out.println(user);
}
}
@Test
public void testFindCount() {
//5.使用代理對象執行方法
int count = userDao.findByCount();
System.out.println(count);
}
//動態查詢
@Test
public void testFindByCondition(){
User user =new User();
user.setUsername("老王");
user.setSex("女");
List<User> cn = userDao.findByCondition(user);
for (User c: cn){
System.out.println(c);
}
}
//子查詢in
//@Test
//public void testFindByIds(){
// List<Integer> list=new ArrayList<Integer>();
// list.add(41);
// list.add(52);
// list.add(47);
// QuryVo quryVo=new QuryVo();
// quryVo.setIds(list);
//
// List<User> cn = userDao.findByIds(quryVo);
// for (User c: cn){
// System.out.println(c);
// }
//}
}