Jdbc批量更新

Connection conn = null;
        PreparedStatement stmt =  null;
        try{
            conn = JdbcUtil.getConnection();
            stmt = conn.prepareStatement("insert into t1 (id,name) values(?,?)");
            
            for(int i=0;i<10;i++){
                stmt.setInt(1, i+1);
                stmt.setString(2, "aa"+(i+1));
                stmt.addBatch();//向缓存中加的参数
            }
            
            int [] ii = stmt.executeBatch();//批处理.每条语句影响的行数
            
            for(int i:ii)
                System.out.println(i);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            JdbcUtil.release(null, stmt, conn);
        }