Method main

src/main/java/util/SqlHump.java:11–38

(String[] args)

public class SqlHump {
    public static void main(String[] args) {
        String str = "a.id,\n" +
                "a.id as order_material_id,\n" +
                "k.payment_date as balance_payment_date";
        String[] strings = str.split(",");
        List<String> stringList = new ArrayList<>();
        for (String data : strings){

            if(data.indexOf("a.material_id") >=0){
//                System.out.println(data);
            }
            if(data.indexOf(" as ")>=0){
                String[] strings1 = data.split("as");
                String j = underlineToHump(strings1[1]);
                data = strings1[0] +" as " + j;

            }else {
                String j =   data.substring(data.indexOf(".")+1);
                j = underlineToHump(j);
                data = data +" as " + j;

            }
            stringList.add(data);
        }

        String sql  =stringList.stream().collect(Collectors.joining(","));
        System.out.println(sql);
    }