这些代码不知道什么意思，初学者。

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这些代码不知道什么意思，初学者。15

public Map<String, Object> list(HttpServletRequest request) {
PageInfo pageInfo = WebUtils.newPageInfo(request);
WaybillInfo waybillInfo = WebUtils.newObject(WaybillInfo.class,
"waybill", request);

UserInfo userInfo = UserInfo.get();
waybillInfo.setOwner(userInfo.getUserNo());
List<String> roleList = roleUserMapper.queryList(userInfo.getUserNo());
waybillInfo.setRoleList(roleList);

List<WaybillInfo> waybillList = waybillMapper.list(waybillInfo,
pageInfo);
List<WaybillInfo> footerList = new ArrayList<WaybillInfo>();
// 总运费汇总求余
double sumttlfee = 0;
double avettlfee = 0;

// 申请金额汇总求余
double sumappfncamt = 0;
double aveappfncamt = 0;
for (int i = 0; i < waybillList.size(); i++) {
sumttlfee += Double.parseDouble(waybillList.get(i).getTtlfee());
sumappfncamt += Double.parseDouble(waybillList.get(i)
.getAppfncamt());
}
avettlfee = sumttlfee / waybillList.size();
aveappfncamt = sumappfncamt / waybillList.size();

WaybillInfo waybillInfo2 = new WaybillInfo();
// 平均值
waybillInfo2.setTtlfee(String.format("%.2f", avettlfee));
waybillInfo2.setAppfncamt(String.format("%.2f", aveappfncamt));
waybillInfo2.setMile("平均价格：");
// 总和
WaybillInfo waybillInfo3 = new WaybillInfo();
waybillInfo3.setTtlfee(String.format("%.2f", sumttlfee));
waybillInfo3.setAppfncamt(String.format("%.2f", sumappfncamt));
waybillInfo3.setMile("总价格：");

footerList.add(waybillInfo2);
footerList.add(waybillInfo3);

// 返回结果
Map<String, Object> result = new HashMap<String, Object>();
result.put("rows", waybillList);
result.put("total", pageInfo.getTotalCount());
result.put("footer", footerList);
return result;
}

2014年10月11日 14:33

1057650230
3
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1个答案按时间排序按投票排序

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采纳的答案

//拿到分页的东西
PageInfo pageInfo = WebUtils.newPageInfo(request);
// 应该支付对象
WaybillInfo waybillInfo = WebUtils.newObject(WaybillInfo.class,
"waybill", request);
// 用户信息
UserInfo userInfo = UserInfo.get();
// 设置用户的编号
waybillInfo.setOwner(userInfo.getUserNo());
// 根据用户的编码拿到用户的角色
List<String> roleList = roleUserMapper.queryList(userInfo.getUserNo());
// 支付设置用户的角色
waybillInfo.setRoleList(roleList);
// 根据支付账号的信息，分页的分页拿到支付的集合
List<WaybillInfo> waybillList = waybillMapper.list(waybillInfo,
pageInfo);

// 总运费汇总求余
double sumttlfee = 0;
double avettlfee = 0;

// 申请金额汇总求余
double sumappfncamt = 0;
double aveappfncamt = 0;
// 根据每条支付信息的费用拿到总运费以及申请金额
for (int i = 0; i < waybillList.size(); i++) {
sumttlfee += Double.parseDouble(waybillList.get(i).getTtlfee());
sumappfncamt += Double.parseDouble(waybillList.get(i)
.getAppfncamt());
}
// 平均每条运费=总运费/所有的支付条数
avettlfee = sumttlfee / waybillList.size();
// 平均每条申请金额=总运费/所有的支付条数
aveappfncamt = sumappfncamt / waybillList.size();

// /新建对象放求的数据
WaybillInfo waybillInfo2 = new WaybillInfo();
// 平均值
waybillInfo2.setTtlfee(String.format("%.2f", avettlfee));
waybillInfo2.setAppfncamt(String.format("%.2f", aveappfncamt));
waybillInfo2.setMile("平均价格：");
// 总和
WaybillInfo waybillInfo3 = new WaybillInfo();
waybillInfo3.setTtlfee(String.format("%.2f", sumttlfee));
waybillInfo3.setAppfncamt(String.format("%.2f", sumappfncamt));
waybillInfo3.setMile("总价格：");

// 把刚才整的对象放到这个集合中
List<WaybillInfo> footerList = new ArrayList<WaybillInfo>();

footerList.add(waybillInfo2);
footerList.add(waybillInfo3);

// 返回结果
Map<String, Object> result = new HashMap<String, Object>();
result.put("rows", waybillList);
result.put("total", pageInfo.getTotalCount());
result.put("footer", footerList);
return result;