版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/meijipingchao629/article/details/81155690
1、导入jar包
mysql-connector-java-5.1.7-bin.jar
mybatis-3.2.7.jar
2、db.propertiese
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test?characterEncoding=utf8
jdbc.username=root
jdbc.password=123456
3、sqlMapperConfig.xml
<?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">
<configuration>
<properties resource="config/db.properties">
<!-- <property name="" value=""/> -->
</properties>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="zml/conf/UserMapper.xml"/>
</mappers>
</configuration>
4、实体类
package zml.pojo;
import java.util.Date;
public class User {
private int id;
private String username;
private Date birthday;
private int sex;
private String address;
public int getId() {
return id;
}
public void setId(int 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 int getSex() {
return sex;
}
public void setSex(int 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 + "]";
}
}
5、操作:
package zml.Test;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import java.util.List;
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.Before;
import org.junit.Test;
import zml.pojo.User;
public class MybatisFrist {
private SqlSessionFactory sqlF;
@Before
public void createSqlsessionFactory() throws IOException{
String resource = "config/SqlMapperConfig.xml";
InputStream inputStream = Resources.getResourceAsStream(resource);
sqlF = new SqlSessionFactoryBuilder().build(inputStream);
}
@Test
public void TestGeyById(){
SqlSession sqlSession = null;
User user = null;
try{
sqlSession= sqlF.openSession();
user = sqlSession.selectOne("user.getById",1);
}catch(Exception e){
e.printStackTrace();
}finally{
sqlSession.close();
}
System.out.println(user);
}
@Test
public void TestLike(){
SqlSession sqlSession = null;
List<User> userList = null;
try{
sqlSession= sqlF.openSession();
//userList = sqlSession.selectList("user.getByLikeUsername", "%小明");
userList = sqlSession.selectList("user.getByLikeUsername2", "小明");
}catch(Exception e){
e.printStackTrace();
}finally{
sqlSession.close();
}
System.out.println(userList);
}
@Test
public void TestUpdate(){
SqlSession sqlSession = null;
try{
sqlSession= sqlF.openSession();
User user = new User();
user.setId(10);
user.setBirthday(new Date());
user.setUsername("zzml");
sqlSession.update("user.updateUser", user);
sqlSession.commit();
}catch(Exception e){
e.printStackTrace();
}finally{
sqlSession.close();
}
}
@Test
public void TestDel(){
SqlSession sqlSession = null;
try{
sqlSession= sqlF.openSession();
sqlSession.delete("user.deleteUser", 26);
sqlSession.commit();
}catch(Exception e){
e.printStackTrace();
}finally{
sqlSession.close();
}
}
@Test
public void TestAdd(){
SqlSession sqlSession = null;
User user = new User();
try{
sqlSession= sqlF.openSession();
//DOTO 表结构中 id为自增主键
user.setBirthday(new Date());
user.setUsername("zengmeiling2");
//sqlSession.insert("user.add",user);
sqlSession.insert("user.add2",user);
sqlSession.commit();
}catch(Exception e){
e.printStackTrace();
}finally{
sqlSession.close();
}
System.out.println("====ID:==="+user.getId());
}
}