List<UserInfo> userInfoList = userInfoService.queryAll();
时间: 2023-05-16 13:07:07 浏览: 103
这是一个查询所有用户信息的代码片段,其中的 List<UserInfo> 是一个泛型集合,userInfoService 是一个服务类,queryAll() 是该服务类中的一个方法,用于查询所有用户信息并返回一个 List<UserInfo> 集合。如果需要更多的上下文信息或者代码实现细节,请提供更多的信息。
相关问题
QueryWrapper<UserInfo> wrapper = new QueryWrapper<>();
在提供的引用中,并没有直接给出"QueryWrapper<UserInfo> wrapper = new QueryWrapper<>();"这行代码的具体实现。可以看到,引用是一个Vue.js组件,引用是一个用于发送请求的API文件,引用是一个用于处理微信接口的Java类。因此,要回答这个问题,我们需要根据上下文和现有的引用内容进行推测。
根据引用中的代码,我们可以推测该项目可能使用了MyBatis-Plus框架,而"QueryWrapper<UserInfo> wrapper = new QueryWrapper<>();"是MyBatis-Plus框架中用于构建查询条件的代码。QueryWrapper是MyBatis-Plus提供的一个查询条件构造器,可以用于快速构建查询条件,并与MyBatis-Plus提供的其他功能结合使用。
具体到UserInfo,可能是一个实体类,代表用户信息。QueryWrapper<UserInfo>的泛型部分指定了要查询的实体类类型。
综上所述,在上述引用的基础上,"QueryWrapper<UserInfo> wrapper = new QueryWrapper<>();"是用于构建查询条件的代码,其中UserInfo是一个实体类的类型。
请注意,以上是根据提供的引用进行的推测,具体实现可能还涉及其他代码和上下文。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* *3* [Day113.尚医通:微信登录二维码、登录回调接口](https://blog.csdn.net/a111042555/article/details/126048516)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 100%"]
[ .reference_list ]
UserInfo userInfo=userProvider.get(); OrganizeEntity organize = organizeService.getById(userInfo.getDepartmentId()); TreeMap<String, List<TzglInvestmentPlanProjectModel>> investmentPlanProjectMap = tzglInvestmentPlanService.selectProjectDetial(params,organize); for (String key : investmentPlanProjectMap.keySet()) { List<TzglInvestmentPlanProjectModel> projectList = investmentPlanProjectMap.get(key); for (TzglInvestmentPlanProjectModel investmentPlanProject: projectList) { investmentPlanProject.setInvestmentSubjectName(generaterSwapUtil.comSelectValues(investmentPlanProject.getInvestmentSubject())); } } //按照年份分组后,降序排序 TreeMap<String, List<TzglInvestmentPlanProjectModel>> investmentPlanProjectMapDescending = new TreeMap<>(Comparator.reverseOrder()); investmentPlanProjectMapDescending.putAll(investmentPlanProjectMap); return ActionResult.success(investmentPlanProjectMapDescending);优化此代码
可以考虑以下优化:
1. 将获取用户信息和部门信息的代码提取出来,避免在每个方法里都重复获取。
```
UserInfo userInfo = userProvider.get();
OrganizeEntity organize = organizeService.getById(userInfo.getDepartmentId());
```
2. 使用 Stream API 和 lambda 表达式来简化代码。
```
TreeMap<String, List<TzglInvestmentPlanProjectModel>> investmentPlanProjectMap = tzglInvestmentPlanService.selectProjectDetial(params,organize);
investmentPlanProjectMap.forEach((key, projectList) -> projectList.forEach(investmentPlanProject -> investmentPlanProject.setInvestmentSubjectName(generaterSwapUtil.comSelectValues(investmentPlanProject.getInvestmentSubject()))));
TreeMap<String, List<TzglInvestmentPlanProjectModel>> investmentPlanProjectMapDescending = new TreeMap<>(Comparator.reverseOrder());
investmentPlanProjectMapDescending.putAll(investmentPlanProjectMap);
return ActionResult.success(investmentPlanProjectMapDescending);
```
3. 不需要先将 `investmentPlanProjectMap` 存放到一个 TreeMap 中,再进行降序排序。可以直接使用 Stream API 进行分组和排序。
```
Map<String, List<TzglInvestmentPlanProjectModel>> investmentPlanProjectMap = tzglInvestmentPlanService.selectProjectDetial(params,organize);
investmentPlanProjectMap.forEach((key, projectList) -> projectList.forEach(investmentPlanProject -> investmentPlanProject.setInvestmentSubjectName(generaterSwapUtil.comSelectValues(investmentPlanProject.getInvestmentSubject()))));
Map<String, List<TzglInvestmentPlanProjectModel>> investmentPlanProjectMapDescending = investmentPlanProjectMap.entrySet().stream()
.sorted(Map.Entry.<String, List<TzglInvestmentPlanProjectModel>>comparingByKey().reversed())
.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue, (oldValue, newValue) -> oldValue, TreeMap::new));
return ActionResult.success(investmentPlanProjectMapDescending);
```