springMVC+annotation

package com.alex.web.dao.impl; import java.sql.ResultSet; import java.sql.SQLException; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.dao.RecoverableDataAccessException; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.core.RowMapper; import org.springframework.stereotype.Repository; import com.alex.web.dao.AccountDao; import com.alex.web.entity.Account; @Repository public class AccountDaoImpl implements AccountDao { @Autowired private JdbcTemplate jdbcTemplate; public Account read(String username) { String sql = "select * from account where username = ?" ; Account account = (Account)jdbcTemplate.queryForObject(sql, new Object[]{username},accountRowMapper); return account; } public Account read(int id){ String sql = "select * from account where id = ?"; Account account = (Account)jdbcTemplate.queryForObject(sql, new Object[]{id},accountRowMapper); return account; } protected RowMapper accountRowMapper = new RowMapper(){ public Object mapRow(ResultSet rs, int arg1) throws SQLException { Account account = new Account (); account.setId(rs.getInt("id")); account.setUsername(rs.getString("username")); account.setPassword(rs.getString("password")); account.setBirthday(rs.getDate("birthday")); account.setEmail(rs.getString("email")); return account; } }; public void regist(Account account) { String sql = "insert into account (username,password,birthday,email) values (?,?,?,?)"; jdbcTemplate.update(sql, new Object[]{account.getUsername(),account.getPassword(),account.getBirthday(),account.getEmail()}); throw new RecoverableDataAccessException("test"); } }