Spring JDBC模板惯用方式

Spring JDBC模板惯用方式
    
    @Resource
    private NamedParameterJdbcTemplate jdbcTemplate;
    @Resource
    private JdbcTemplate jdbcTemplateSimple;

1、插入并获取自增主键
	KeyHolder keyHolder = new GeneratedKeyHolder();
        jdbcTemplateSimple.update(new PreparedStatementCreator() {
            @Override
            public PreparedStatement createPreparedStatement(Connection connection) throws SQLException {
                PreparedStatement ps = connection.prepareStatement(insert_sql, Statement.RETURN_GENERATED_KEYS);
                ps.setLong(1, 2L);
                ps.setString(6, "test");
                return ps;
            }
        }, keyHolder);
        long id = keyHolder.getKey().longValue();

2、查询返回结果集List<Map<String, Object>>
        List<Map<String, Object>> list = jdbcTemplateSimple.queryForList("select * from test where code=? and state=?", "Y001", 1);

3、根据Map参数来查询结果集，并封装成对应的Bean
	Map<String,Object> map = new HashMap();
	map.put("code","Y001");
	map.put("state",1);

        List<TestBean> beanList = jdbcTemplate.query("select * from test where code=:code and state=:state", map, new RowMapper<TestBean>() {
            @Override
            public BidItemBean mapRow(ResultSet rs, int i) throws SQLException {
                TestBean b = new TestBean();
                b.setId(rs.getLong("id"));
                b.setCode(rs.getString("code"));
                b.setState(rs.getString("state"));
                return b;
            }
        });

4、更新删除：
	jdbcTemplateSimple.update("delete from test where product_id=? and picking_center_id=?", "Y001", 1);