Question

我在Spring 4+上使用neo4j-jdbc-2.3.2。对于CRUD，我正在使用JDBCTemplate。

我正面临两个挑战

交易无效。抛出Checked或Unchecked异常不会回滚事务并在Neo4j中保留数据
JDBCTemplate具有使用KeyHolder类返回自动生成ID的功能。这不适用于Neo4j。它给了我Null Pointer。

这是一个小测试用例

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = { Neo4jJdbcSpike.Config.class })
@Transactional
@Rollback(false)
@DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_EACH_TEST_METHOD)
public class Neo4jJdbcSpike {

    @Autowired
    private JdbcTemplate jdbcTemplate;

    @Test
    public void transactionManagementNotWorkingTest() {
        String cypher = "create (a:Person { name: ?})";
        jdbcTemplate.update(cypher, new Object[] { "Foo" });
        throw new IllegalStateException("This will not rollback trnsaction");
    }

    @Test
    public void transactionManagementNotWorkingCheckedExceptioTest() throws CheckedException {
        String cypher = "create (a:Person { name: ?})";
        jdbcTemplate.update(cypher, new Object[] { "Bar" });
        throw new CheckedException();
    }

    @Test
    public void getGeneratedGraphIDTest() throws CheckedException {
        String cypher = "create (a:Person { name: ?})";
        KeyHolder holder = new GeneratedKeyHolder();
        PreparedStatementCreator psc = new PreparedStatementCreator() {

            @Override
            public PreparedStatement createPreparedStatement(Connection con) throws SQLException {
                PreparedStatement ps = con.prepareStatement(cypher, Statement.RETURN_GENERATED_KEYS);
                ps.setString(1, "Bar");
                return ps;
            }
        };
        jdbcTemplate.update(psc, holder);
        Assert.assertNotNull(holder.getKey());
        Assert.assertTrue(holder.getKey().longValue() > 0L);
    }

    public static class CheckedException extends Exception {

    }

    @Configuration
    @Import(TestConfig.class)
    @EnableTransactionManagement
    static class Config {

        @Bean
        public static PropertySourcesPlaceholderConfigurer placeHolderConfigurer() {
            return new PropertySourcesPlaceholderConfigurer();
        }

        @Bean
        public DataSource dataSource() {
            return new DriverManagerDataSource("jdbc:neo4j://localhost:7474", "neo4j", "passw0rd");
        }

        @Bean
        public JdbcTemplate jdbcTemplate(DataSource dataSource) {
            return new JdbcTemplate(dataSource);
        }

        @Bean
        public DataSourceTransactionManager txManager(DataSource dataSource) {
            return new DataSourceTransactionManager(dataSource);
        }

    }

}

注意：所有测试用例都失败了...... 在此先感谢....

Spring交易无效的Neo4j-Jdbc

0 个答案: