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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                單表操作,簡單的單表增、刪、改、查無需在xml文件中寫sql。 ~~~ @Resource(name = "sqlSessionDao") private Dao dao; //單表查詢:簡單條件 TfNList cond = new TfNList(); cond.setListId("NOMC14027909").asCondition(); TfNList o1 = dao.selectOne(cond); //單表查詢另一種寫法 TfNList o1 = dao.selectOne(new TfNList(){{ setListId("NOMC14027909").asCondition(); }}); //單表查詢:復雜條件 TfNList o2 = dao.selectOne(new Conditions(TfNList.class){{ andEqual(TfNList.LIST_ID, "NOMC14027909"); andLike(TfNList.LIST_NAME, "%ff%"); //andGreater(TfNList.COMPANY_NUM, 1); }}); //注意:條件列需調用方法asCondition() 后續單表/批量的更新、刪除一樣。 //單表插入 TfNList n = new TfNList(); n.setListId("111"); n.setListName("測試"); dao.insert(n); //單表插入另一種寫法 dao.insert(new TfNList(){{ setListId("111"); setListName("測試"); }}); //單表更新 TfNList n = new TfNList(); n.setListId("111").asCondition(); n.setListName("測試2"); dao.update(n); //某值即作為條件又作為更新值時寫法。此句表示將state=0的數據更新為1 n.setState("0").asConditionAndUpdateValue("1"); //單表更新另一種寫法 dao.update(new TfNList(){{ setListId("111").asCondition(); setListName("測試2"); }}); //單表刪除 TfNList n = new TfNList(); n.setListId("111").asCondition(); dao.delete(n); //單表刪除另一種寫法 dao.delete(new TfNList(){{ setListId("111").asCondition(); }}); //保存,有更新,無插入。此種方式效率不高,因為內部是先做了一次查詢判斷是否有值,然后再決定插入還是更新,所以大批量頻繁操作時應盡量避免使用! TfNList n = new TfNList(); n.setListId("111").asCondition(); n.setListName("測試"); dao.save(n); ~~~
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