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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
                ## Stream查詢 對于某些查詢,結果集包含大量數據,如果一次性返回,可能導致內存益處,可以使用stream查詢 * public <T> StreamData<T> stream(SqlId sqlId, Class<T> clazz, Object paras) 查詢sql文件,返回StreamData對象 * public <T> StreamData<T> streamExecute(String sqlTemplate, Class<T> clazz,Object para) 查詢sql模板。返回Stream對象 * public <T> StreamData<T> streamExecute(SQLReady p, Class<T> clazz) 直接使用jdbc sql查詢 StreamData提供foreach方法,遍歷結果 ```java SQLReady sqlReady = new SQLReady("select * from sys_user"); StreamData<User> streamData = sqlManager.streamExecute(sqlReady,User.class); streamData.foreach(user -> { //處理user }); ``` 需要注意的是,必須在事物上下文里遍歷streamData,這是因為StreamData已經脫離了BeetlSQL,但包含了jdbc鏈接用于加載數據,因此期望事物來自動關閉數據庫鏈接
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