spring中事务传播下,特殊方法手动控制事务

在开发中，遇到事务问题：从excel文件中解析导入数据，每个sheet页中的数据作为单个的事务单元提交数据库。解析下代码实现：

方法①：mainAnalysisEntrance(…)解析excel入口和权限和其他业务等处理;
方法②：analysisWorkbook(…)解析excel工作簿;
方法③：analysisPerSheet(…)解析每一个sheet页数据，并将其中通过的数据，作为一个事务单元，提交数据库;
方法④：analysisPerRow(…)解析excel中sheet中的每一行;
方法⑤：notSupportBatchAllDBByPerSheetDatas(…)此方法持久化sheet页数据.此方法手动单方法处理事务.

遇到问题：方法⑤每次都不会单独作为事务单元提交sheet页数据，等到方法③执行全部完成，才会提交所有sheet页数据，或全部回滚所有sheet页数据，违背一开始的当sheet页作为事务的提交方案。

简略代码附入：

……import jxl.*;……import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.ApplicationContext;import org.springframework.jdbc.datasource.DataSourceTransactionManager;import org.springframework.stereotype.Service;import org.springframework.transaction.TransactionDefinition;import org.springframework.transaction.TransactionStatus;import org.springframework.transaction.interceptor.TransactionAspectSupport;import org.springframework.transaction.support.DefaultTransactionDefinition;……@Service("smartImportService")public class SmartImportServiceImpl implements SmartImportService {//logprivate static final Logger LOG = LoggerFactory.getLogger(LawCaseAllSmartImportSchemeServiceImpl.class);@Autowiredprivate AMapper aMapper;@Autowiredprivate ApplicationContext ctx;public JsonResult mainAnalysisEntrance(InputStream is, Object ... args) {……Workbook book = Workbook.getWorkbook(is);……return analysisWorkbook(book, args);……}public JsonResult analysisWorkbook(Workbook book, Object ... args) throws Exception{……for(int sheetIndex = 0; sheetIndex < allSheetCount; sheetIndex++){……break;……BusinessResult businessSheetResult = analysisPerSheet(sheet, args0);……}……//finally中关闭book.close();……return jsonResult;}public BusinessResult analysisPerSheet(Sheet sheet, Object ... args) throws Exception{……for(int rowIndex = 2; rowIndex < rows; rowIndex++){……Map<String, Object> rowRes = analysisPerRow(cells, args);……}……Object [] objLists = new Object[6];//把当前sheet页中ok的数据持久化数据boolean db_res = notSupportBatchAllDBByPerSheetDatas(objLists);}public Map<String, Object> analysisPerRow(Cell [] cells, Object ... args) throws Exception{//行数据验证和解析}public boolean notSupportBatchAllDBByPerSheetDatas(Object ... lists){DataSourceTransactionManager txManager = (DataSourceTransactionManager) ctx.getBean("transactionManager");DefaultTransactionDefinition def = new DefaultTransactionDefinition();def.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);// 事物隔离级别，开启新事务TransactionStatus txStatus = txManager.getTransaction(def);// 获得事务状态try {List<AEntity> aList = (List<AEntity>) lists[0];……if(aList != null && !aList.isEmpty()){int aRows = aMapper.batchInsertA(aList);if(aRows != aList.size()){SmartImportSchemeAssist.printTrackingMsg(LOG, "批量插入每个sheet页中所有涉及到数据库的数据:A表，数据插入不一致，回滚事务.");//TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();  //--此回滚为手动但失效，并且不推荐//return false;throw new RuntimeException();}}……txManager.commit(txStatus);//事务处理成功，提交当前事务return true;} catch (Exception e) {SmartImportSchemeAssist.printErrMsg(LOG, "批量插入每个sheet页中所有涉及到数据库的数据操作异常，回滚事务.", e);txManager.rollback(txStatus);//事务处理失败，回滚当前事务}return false;}}@Service("allSmartImportSchemeAssist")public class SmartImportSchemeAssist {/** * 打印错误日志 * */public static void printErrMsg(Logger logger, String msg, Exception e){logger.error("^-^ " + msg + e.getMessage(), e);}/** * 打印非错误日志 * */public static void printTrackingMsg(Logger logger, String msg){logger.info("^.^ " + msg);}}

声明式事务配置：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"><!-- <import resource="applicationContext-activiti.xml"/> --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean><!-- 注解方式配置事物 --><!-- <aop:config> <aop:advisor id="managerTx" advice-ref="txAdvice" pointcut="execution(**..service..*.*(..))" order="1"/> </aop:config> --><aop:config><aop:pointcut expression="(execution(* com.a.service.*.* (..))) or (execution(* com.b.service.*.* (..))) or (execution(* com.c.service.*.* (..)))" id="pointcut" /><aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut" /></aop:config><!-- 事务控制 --><tx:advice id="txAdvice" transaction-manager="transactionManager"><tx:attributes><!--只读，开启默认事务--><tx:method name="get*" read-only="true" /><tx:method name="save*" propagation="REQUIRED" rollback-for="java.lang.Exception" />……<tx:method name="crud*" propagation="REQUIRED" rollback-for="java.lang.Exception" />……<!-- 此配置未测试是否存在 --><tx:method name="*" /><!--此前缀只读，非事务方式执行方法--><tx:method name="notSupport*" propagation="NOT_SUPPORTED" read-only="true" /></tx:attributes></tx:advice></beans>

好了，各个sheet也作为事务单元处理，1，2，3解析，2失败(事务失败)，1，3成功进入数据库。