如果是ArrayList<YourBean>那么使用ObjectMapper 的getTypeFactory().constructParametricType(collectionClass, elementClasses); 如果是HashMap<String,YourBean>那么 ObjectMapper 的getTypeFactory().constructParametricType(HashMap.class,String.class, YourBean.class); publicfinalObjectMapper mapper =newObjectMapper();pub...
通常也不用这种list对List对应转。只要把json中有用的数据提取到适合java环境的java对象中
Map<String, Item> map = list.stream() .filter(item -> item.isVisible()) .collect(Collectors.toMap(Item::getName, Function.identity())); 1. 2. 3. 转换并排序: 可以首先对流进行排序,然后再收集到映射中。 Map<String, Item> map = list.stream() .sorted(Comparator.comparing(Item::getName)...
如果是ArrayList<YourBean>那么使用ObjectMapper 的getTypeFactory().constructParametricType(collectionClass, elementClasses); 如果是HashMap<String,YourBean>那么 ObjectMapper 的getTypeFactory().constructParametricType(HashMap.class,String.class, YourBean.class); publicfinalObjectMapper mapper =newObjectMapper();pub...
如果是HashMap那么 ObjectMapper 的getTypeFactory().constructParametricType(HashMap.class,String.class, YourBean.class); public final ObjectMapper mapper = new ObjectMapper(); public static void main(String[] args) throws Exception{ JavaType javaType = getCollectionType(ArrayList.class, YourBean.class)...
如果是HashMap<String,YourBean>那么 ObjectMapper 的getTypeFactory().constructParametricType(HashMap.class,String.class, YourBean.class); publicfinalObjectMappermapper=newObjectMapper();publicstaticvoidmain(String[] args)throwsException{JavaTypejavaType=getCollectionType(ArrayList.class, YourBean.class); ...
如果是HashMap<String,YourBean>那么 ObjectMapper 的 getTypeFactory().constructParametricType(HashMap.class,String.class, YourBean.class);public final ObjectMapper mapper = new ObjectMapper();public static void main(String[] args) throws Exception{ JavaType javaType = getCollectionType(ArrayList.class, ...