求大神帮忙解释下这段代码。

Question

这是一个从表添加页面的代码。currentx是当前页数。我想问下 st st1 st2 st3是什么意思，就是split（；）；这个方法我不是很清楚什么意思，还有下面的!ss.equals("t") t是什么。 传参什么的我晓得。

@RequestMapping("/addProcess.do")
public String addProcessMaintenance(String currentx, String ids, String idstr, String numberstr, String namestr, String overtimestr, HttpServletRequest request, Long pageNo, Model model, String businessStatus,String nameid){
String[] str = numberstr.split(";");
String[] str1 = namestr.split(";");
String[] str2 = overtimestr.split(";");
String[] str3 = idstr.split(";");
int current = Integer.parseInt(currentx);

    for(int i = 0; i < str3.length; i++){
        AccountingProcessChild pm = new AccountingProcessChild();
        String ss = str3[i];
        if(!ss.equals("t")){
            pm = accountingProcessService.findProcessChildById(str3[i]);
            try{
                pm.setNode(Integer.parseInt(str[i]));
                pm.setNodeName(str1[i]);
                pm.setOverTimeNumber(Integer.parseInt(str2[i]));
            }catch(Exception e){
                System.out.println("信息错误，请联系管理员！");
            }

            accountingProcessService.update(pm);
        }else{
            try{
                pm.setNode(Integer.parseInt(str[i]));
                pm.setNodeName(str1[i]);
                pm.setOverTimeNumber(Integer.parseInt(str2[i]));
                pm.setParent(ids);
            }catch(Exception e){
                System.out.println("信息错误，请联系管理员！");
            }

            accountingProcessService.save(pm);
        }
    }

    AccountingProcess ap = accountingProcessService.findById(ids);
    Page<AccountingProcessChild> page = null;
    page = accountingProcessService.findProcessChild(ids, current);
    model.addAttribute("page", page);
    model.addAttribute("ap", ap);
    model.addAttribute("businessStatus", businessStatus);

    return "/accounting/accountingProcessEdit";
}

Answer 1

split是按某个字符，将字符串分割为数组