数据库字段<-->java属性 互转方法

public class Util {
	
	public static void main(String args[]){
		System.out.println(toInRowName("userName").equals("USER_NAME"));
		System.out.println(toOntRowName("GROUP_USER_NAME").equals("groupUserName"));
	}
	public static String toOntRowName(String voName) {
		StringBuffer sb = new StringBuffer();
		boolean flag=false;
		for (int i = 0; i < voName.length(); i++) {
			char cur = voName.charAt(i);
			if (cur=='_') {
				flag=true;
				
			} else {
				if(flag){
					sb.append(Character.toUpperCase(cur));
					flag=false;
				}else{
					sb.append(Character.toLowerCase(cur));
					
				}
				
			}
		}
		//System.out.println(sb);
		return sb.toString();
	}
	public static String toInRowName(String voName) {
		StringBuffer sb = new StringBuffer();
		for (int i = 0; i < voName.length(); i++) {
			char cur = voName.charAt(i);
			if (Character.isUpperCase(cur)) {
				sb.append("_");
				sb.append(cur);
			} else {
				sb.append(cur);
			}
		}
		return sb.toString().toUpperCase();
	}
	
	

}