Question

这是我的道路层：

Picasso.with(context)
    .load(url)
    .placeholder(R.drawable.user_placeholder)
    .error(R.drawable.user_placeholder_error)
    .into(imageView);
it's easier and cleaner.

这是我的application.xml

public class UserDAOImpl extends BaseDAO implements UserDAO {

        private PlatformTransactionManager transactionManager;

        public void setTransactionManager(PlatformTransactionManager transactionManager) {
            this.transactionManager = transactionManager;
        }

        @Override
        public int storeSignUp(final StoreSignUp store) throws POSException {
            KeyHolder keyHolder = new GeneratedKeyHolder();
            TransactionDefinition def = new DefaultTransactionDefinition();
            TransactionStatus status = transactionManager.getTransaction(def);
            int id = 0;
            try {
                this.jdbcTemplate.update(new PreparedStatementCreator() {
                    public PreparedStatement createPreparedStatement(Connection connection) throws SQLException {
                        PreparedStatement ps = connection.prepareStatement(INSERT_STORE, Statement.RETURN_GENERATED_KEYS);
                        ps.setString(1, store.getName());
                        ps.setString(2, store.getZip());
                        ps.setString(3, store.getCity());
                        ps.setString(4, store.getState());
                        ps.setInt(5, store.getCountryCode());
                        ps.setString(6, store.getAddress());
                        return ps;
                    }

                }, keyHolder);

                store.setId(keyHolder.getKey().intValue());
                id = store.getId();

                this.jdbcTemplate.update(INSERT_STORE_PHONE,
                        new Object[] { store.getId(), store.getPhone(), store.getPassword(), store.getSalt() });
                transactionManager.commit(status);
            } catch (DuplicateKeyException e) {
                transactionManager.rollback(status);
            }
            return id;
        }
    }

我得到了

<!-- Initialization for TransactionManager -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

当我调用此方法时，数据插入到一个表中但不在另一个表，所以我想从第一个表回滚。

Answer 1

这对您来说应该足够了-@Transactional(rollbackFor = {Exception.class})

其中@Transactional是org.springframework.transaction.annotation.Transactional

假设您使用的是public方法，请不要在该公共方法中占用Exception，并且由于您使用的是xml配置，因此请确保您拥有

<tx:annotation-driven transaction-manager="transactionManager" />

其中tx是-xmlns:tx="http://www.springframework.org/schema/tx"

这样，您将摆脱TransactionDefinition，TransactionStatus等周围的显式提交和回滚样板代码。如果需要多种方法，这将变得很麻烦。

我怎么能用spring jdbctemplate回滚

1 个答案: