mybatis

sqlMapConfig.xml

jdbc的sql语句

    select * from user;

    
        delete from user where id=#{id};
    
    
        update user set password=#{password} where id=#{id};
    
    
        insert into user(password,type) values(#{password},1);
    

Bean中User属性

public class User {
    private int id;
    private String password;
    private String type;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", password='" + password + '\'' +
                ", type='" + type + '\'' +
                '}';
    }
}

dao包中的代码

public interface IUserdao {
    List findAll();
    void deleteById(int id);
    void updateById(User user);
    void insert(User user);
}

写个Test测试文件

public class Test {
    public static void main(String[] args) throws IOException {
        Reader resourceAsReader = Resources.getResourceAsReader("sqlMapConfig.xml");
        SqlSessionFactory build=new SqlSessionFactoryBuilder().build(resourceAsReader);
        SqlSession session=build.openSession();
        List userList=session.selectList("findAll");
        User user=new User();
        user.setId(4);
        user.setPassword("777");
        session.delete("deleteById",5);
        session.update("updateById",user);
        User user1=new User();
        user1.setPassword("987");
        session.insert("insert",user1);
        System.out.println(userList);
        session.commit();
        session.close();
    }
}