hibernate不调用save也保存上了

mac2022-06-30  21

 

1 List<Instrument> insts = instService.search(search); 2 3 if (insts.size() == 1) { 4 Instrument inst = insts.get(0); 5 6     if (inst != null) { 7 8       inst.setBarCode("imported"); 9 10       instService.save(inst) 11 12   } 13 }

第10行加不加都会保存上。所有以下的方式应该避免

1 List<Instrument> insts = instService.search(search); 2 3 if (insts.size() == 1) { 4 Instrument inst = insts.get(0); 5 6     if (inst != null) { 7 8       inst.setBarCode("imported"); 9 10 if(cond) { 11        instService.save(inst) 12 } 13 14   } 15 }

应该改为这样

1 List<Instrument> insts = instService.search(search); 2 3 if (insts.size() == 1) { 4 Instrument inst = insts.get(0); 5 6 7      if (inst != null) { 8 if(cond) { 9        inst.setBarCode("imported"); 10 11        instService.save(inst) 12 } 13 } 14 }

 

转载于:https://www.cnblogs.com/cuizhf/p/4537925.html

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