static String buildInsertSql(String table, String[] fields) {

StringBuilder sb = new StringBuilder(1024);

        StringBuilder sb1 = new StringBuilder(128);

 StringBuilder sb2 = new StringBuilder(128);

sb1.append(" (").append(fields[0]);

sb2.append(" (").append("?");

for(int i=1;i<fields.length;i++){

sb1.append(", ").append(fields[i]);

sb2.append(", ?");

}

sb1.append(")");

sb2.append(")");

sb.append("INSERT INTO ").append(table).append(sb1.toString()).append(" VALUES").append(sb2.toString()).toString();

String res = sb.toString();

System.out.printf("语句为：%s\n",res);

return res;

    }