crud/main/java/com/dao/impl/UserDaoImpl.java

75 lines
3.0 KiB
Java

package com.dao.impl;
import com.dao.UserDao;
import com.domain.Role;
import com.domain.User;
import org.springframework.dao.EmptyResultDataAccessException;
import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.PreparedStatementCreator;
import org.springframework.jdbc.support.GeneratedKeyHolder;
import org.springframework.jdbc.support.KeyHolder;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.List;
import java.util.Map;
public class UserDaoImpl implements UserDao {
private JdbcTemplate jdbcTemplate;
public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
public List<User> findAll() {
List<User> userList = jdbcTemplate.query("select * from sys_user", new BeanPropertyRowMapper<User>(User.class));
return userList;
}
public Long save(final User user) {
//创建PreparedStatementCreator
PreparedStatementCreator creator = new PreparedStatementCreator() {
public PreparedStatement createPreparedStatement(Connection connection) throws SQLException {
//使用原始jdbc完成有个PreparedStatement的组建
PreparedStatement preparedStatement = connection.prepareStatement("insert into sys_user values(?,?,?,?,?)", PreparedStatement.RETURN_GENERATED_KEYS);
preparedStatement.setObject(1,null);
preparedStatement.setString(2,user.getUsername());
preparedStatement.setString(3,user.getEmail());
preparedStatement.setString(4,user.getPassword());
preparedStatement.setString(5,user.getPhoneNum());
return preparedStatement;
}
};
//创建keyHolder
GeneratedKeyHolder keyHolder = new GeneratedKeyHolder();
jdbcTemplate.update(creator,keyHolder);
//获得生成的主键
long userId = keyHolder.getKey().longValue();
return userId; //返回当前保存用户的id 该id是数据库自动生成的
}
public void saveUserRoleRel(Long userId, Long[] roleIds) {
for (Long roleId : roleIds) {
jdbcTemplate.update("insert into sys_user_role values(?,?)",userId,roleId);
}
}
public void delUserRoleRel(Long userId) {
jdbcTemplate.update("delete from sys_user_role where userId=?",userId);
}
public void del(Long userId) {
jdbcTemplate.update("delete from sys_user where id=?",userId);
}
public User findByUsernameAndPassword(String username, String password) throws EmptyResultDataAccessException {
User user = jdbcTemplate.queryForObject("select * from sys_user where username=? and password=?", new BeanPropertyRowMapper<User>(User.class), username, password);
return user;
}
}