如何動態添加參數值到JdbcTemplate查詢？

Question

我需要查詢數據庫，但參數值從查詢需要來自一個文件，這裏是代碼...

BufferedReader reader = new BufferedReader(new FileReader("C:/DBMigrations/empIDs.txt")); 
String line = null; 
String query = "select name, address from Employee where id in ("; 
while ((line = reader.readLine()) != null) { 
     // the value of line needs to be plugged into query inside the in clause 
    } 

我使用Spring的SimpleJdbcTemplate進行。

在此先感謝您的幫助。

Answer 1

您可以簡單地生成從文件級聯ID的令牌的方法。

String query = "select name, address from Employee where id in ("+geneateEmployeeIds()+")"; 

private String geneateEmployeeIds(){ 

// read your file here and convert it to string<br> 
// do id concatenation here 
    return ids; 
} 

你可以有你如何能得到文件here