Jackson 處理複雜型別(List,map)兩種方法
阿新 • • 發佈：2018-12-18
方法一:
String jsonString="[{'id':'1'},{'id':'2'}]";
ObjectMapper mapper = new ObjectMapper();
JavaType javaType = mapper.getTypeFactory().constructParametricType(List.class, Bean.class);
//如果是Map型別 mapper.getTypeFactory().constructParametricType(HashMap.class,String.class, Bean.class);
List<Bean> lst = (List<Bean>)mapper.readValue(jsonString, javaType);
方法二:
String jsonString="[{'id':'1'},{'id':'2'}]";
ObjectMapper mapper = new ObjectMapper();
List<Bean> beanList = mapper.readValue(jsonString, new TypeReference<List<Bean>>() {});