(HashMap<String, String> map1, HashMap<String, String> map2) { // 根据name键进行比较 String name1 = map1.get("name"); String name2 = map2.get("name"); return name1.compareTo(name2); } }; // 对提取的列表进行排序 Collections.sort(extractedList, comparator); // 将排序后的列表...
List<String>>codeToGroup=newHashMap<>();for(Strings:strs){// 对字符串进行编码Stringcode=encode(s);// 把编码相同的字符串放在一起codeToGroup.putIfAbsent(code,newLinkedList<>());codeToGroup.get(code).add(s);}// 获取结果List<List<String>>res=newLinkedList<>();for(List<...
List<HashMap<String, String>> previewData = vp.getLeaveBanlaceList();//获取Table数据源集合String fileName =anp.downloadFile(); vp.verifyExportExcelDataCompareWithInterfaceTable(fileName, previewData); } 四、Page 示例 1/**2* 用于休假结余设立菜单,返回页面的List<LinkedHashMap>3*@return4*@throw...
目前项目中不少使用了 FastJson 做对象与JSON数据的转换，又需要更新版本重新部署，可以说是费时费力。与...
需求是展示文章的标签名称,blog 对象的标签字段是tag(数据通常是java,xx,java-web等以逗号分割的),所以由后端传到前端的数据是HashMap<String,List> ——(key是blog的id,List是分割后标签名称), 数据库的数据格式如下 代码如下 publicModelAndViewindex(ModelAndView mv){ ...
Map job_map = new HashMap();List list = new Arraylist();Person person = new Person();//一个实体类list.add(person);List list1 = new Arraylist();Dog dog = new Dog();//一个实体类list1.add()dog;job_map.put("person", list);job_map.put("dog", list1);Map 加入两个List 。在...
假设有一个List<String> a;里面已经有值了。假设你定义了一个 List<Hashmap<String,String>> b;for(String s : a){ HashMap<String,String> m = new HashMap<String,String>();m.put(s,s);b.add(m);} 走完这个循环出来的变量b应该就是你要的东西了。
.withTrim()); for (CSVRecord csvRecord : csvParser) { LOGGER.info("The parser read line ..."); // Accessing values by Header names String line1 = csvRecord.get("line1"); String line2 = csvRecord.get("line2"); String lineId = csvRecord.get("lineId"); List<CSVRecord> list ...
Sure I could use an array but what if I don't know how many objects I'll have beforehand? What if I want to establish relationships between the data, linking say... a text string with a particular object? We're going to take a brief and simple look into Java collections and learn ...
static void main(String[] args) { // 创建HashMap HashMap<String, Integer> hashMap...