JPA事务回滚配置

<!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
        <!--  <property name="dataSource" ref="dataSource" />-->
    </bean> 
    <!-- 启用支持Annotation注解方式的事务管理 -->
    <tx:annotation-driven transaction-manager="transactionManager" />

1. 由spring框架自动化管理

public class ArticleAction {
    
    @Autowired
    private IArticleService articleService;
    @Autowired
    private IArticleClassService articleClassService;
    
    
    
    @RequestMapping({"/jpatest1.htm"})
    @Transactional(rollbackFor = Exception.class,propagation=Propagation.REQUIRED)
    public ModelAndView jpatest1(HttpServletRequest request){
        ModelAndView mv = new JModelAndView("jpatest.html");
        
        ArticleClass articleClass = this.articleClassService.getObjById(CommUtil.null2Long(163843));
        articleClass.setClassName("特色服务2222");
        this.articleClassService.update(articleClass);
        
        Article article = this.articleService.getObjByProperty("mark", "join111");
        article.setTitle(article.getTitle()+"2222");
        this.articleService.update(article);
        
        mv.addObject("status","transaction success");
        return mv;
    }
    
    @RequestMapping({"/jpatest2.htm"})
    @Transactional
    public ModelAndView jpatest2(HttpServletRequest request){
        ModelAndView mv = new JModelAndView("jpatest.html");
        
        ArticleClass articleClass = this.articleClassService.getObjById(CommUtil.null2Long(163843));
        articleClass.setClassName("特色服务2222");
        this.articleClassService.update(articleClass);
        
        Article article = this.articleService.getObjByProperty("mark", "join111");
        article.setTitle(article.getTitle()+"2222");
        this.articleService.update(article);
        
        mv.addObject("status","transaction success");
        return mv;
    }
    
}

2. 手动提交事务

public class ArticleAction {
    
    @Autowired
    private IArticleService articleService;
    @Autowired
    private IArticleClassService articleClassService;
    
    /**
     * JpaTransactionManager事务管理 .
     */
    @Resource(name = "transactionManager")
    private JpaTransactionManager tm;
    
    @RequestMapping({"/jpatest.htm"})
    @Transactional(value="transactionManager", rollbackFor = Exception.class)
    public ModelAndView jpatest(HttpServletRequest request){
        ModelAndView mv = new JModelAndView("jpatest.html");
        //事务开始
        DefaultTransactionDefinition def = new DefaultTransactionDefinition();
        def.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);  
        def.setTimeout(30);
        //事务状态
        TransactionStatus status = tm.getTransaction(def); 
        
        
        try {
             //此处写持久层逻辑
            ArticleClass articleClass = this.articleClassService.getObjById(CommUtil.null2Long(163843));
            articleClass.setClassName("特色服务2222");
            this.articleClassService.update(articleClass);
            
            Article article = this.articleService.getObjByProperty("mark", "join111");
            article.setTitle(article.getTitle()+"2222");
            this.articleService.update(article);
            
            
            tm.commit(status);
            
            mv.addObject("status","transaction success");
        } catch (Exception e) {
            System.out.println("出现异常，开始回滚"+e);
            if(!status.isCompleted()){
                tm.rollback(status);
            }
            //throw e;
        }
        
        return mv;
    }
    
}