目录

SSM在Controller中添加事务管理

本人使用：

一般而言，事务都是加在Service层的，但也可以加在Controller层。。

看了不少人的博客，总结出两个方法：

现在具体来说说怎么实现的：

1.在controller层写编程式事务【繁琐，不推荐】

spring-mybatis.xml中事物管理器的配置依旧

在controller中的方法里编写事务

//在每个controller中注入transactionManager
@Resource
private PlatformTransactionManager transactionManager;
 
@PostMapping(value = "setCode")
@ResponseBody
public void setCode(Invoice invoice, InvoiceAddress invoiceAddress,String token,String orderIDs,
                    Integer pid,HttpServletResponse response){ 
    DefaultTransactionDefinition defaultTransactionDefinition = new DefaultTransactionDefinition();
    defaultTransactionDefinition.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
    TransactionStatus status = transactionManager.getTransaction(defaultTransactionDefinition);
 
    try {
        invoiceService.insert(token,pid,invoice);
        int iID= invoice.getId();
        String substring = orderIDs.substring(0, orderIDs.length()-1);
        String[] split = substring.split(",");
        for (String string2 : split) {
            bOrderService.updateIStatus("1",string2);
        }
        invoiceOrderService.insert(iID,substring);
        if(Integer.parseInt(invoice.getiType())==1){
            invoiceAddressService.insert(iID,invoiceAddress);
        }
 
        System.out.println("======制造一个运行时异常aa======");
        System.out.println("运行时异常："+100/0);
 
        //没有异常便手动提交事务
        transactionManager.commit(status);
        printJson(response,result(200,"ok"));
    }catch (Exception e){
        //有异常便回滚事务
        transactionManager.rollback(status);
        e.printStackTrace();
        printJson(response,result(500,"false"));
    } 
}

2.将事务配置定义在Spring MVC的应用上下文(spring-mvc.xml)中【简单明了、一劳永逸】

spring-mybatis.xml中事物管理器配置不变

在spring-mvc.xml中也定义事务配置：

将@Transactional(rollbackFor = { Exception.class })注解打在Controller上

@Controller
@RequestMapping(value = "/invoiceC")
@Transactional(rollbackFor = { Exception.class })
public class InvoiceController extends BaseController {  
    @Autowired
    private InvoiceService invoiceService;
 
    @Autowired
    private InvoiceOrderService invoiceOrderService;
 
    @Autowired
    private InvoiceAddressService invoiceAddressService;
 
    @Autowired
    private BalanceRechangeOrderService bOrderService;    
 
    @PostMapping(value = "setCode")
    @ResponseBody
    public void setCode(Invoice invoice, InvoiceAddress invoiceAddress,String token,String orderIDs,
                        Integer pid,HttpServletResponse response){
        invoiceService.insert(token,pid,invoice);        
        int iID= invoice.getId();
        String substring = orderIDs.substring(0, orderIDs.length()-1);//截取最后一个
        String[] split = substring.split(",");//以逗号分割 
        for (String string2 : split) {
            bOrderService.updateIStatus("1",string2);
        } 
        invoiceOrderService.insert(iID,substring); 
        if(Integer.parseInt(invoice.getiType())==1){
            //纸质发票，收货地址
            invoiceAddressService.insert(iID,invoiceAddress);
        } 
        System.out.println("======制造一个运行时异常aa======");
        System.out.println("运行时异常："+100/0);
        printJson(response,result(200,"ok")); 
    }
}

现在，我们来谈谈为什么之前？？==》

xmlns:tx="http://www.springframework.org/schema/tx"
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd

  
      org.springframework
      spring-tx
      5.1.5.RELEASE
  
  
  
  
      org.springframework
      spring-jdbc
      5.1.5.RELEASE
  

  
  DispatcherServlet
  org.springframework.web.servlet.DispatcherServlet
  
      contextConfigLocation
      classpath:spring-mvc.xml
  
  
  
  DispatcherServlet
  *.action
  
  
  
  org.springframework.web.context.ContextLoaderListener
  
  
  contextConfigLocation
  classpath:spring-*.xml