@文心快码objectmapper string转list 文心快码 使用ObjectMapper将JSON字符串转换为List对象,通常遵循以下步骤: 确定ObjectMapper库: ObjectMapper类是Jackson库的一部分,用于处理JSON数据的序列化和反序列化。确保项目中已经包含了Jackson库的依赖。例如,在Maven项目中,依赖配置可能如下: xml <dependency> <group...
ObjectMapper将List和String互转ObjectMapper objectMapper = new ObjectMapper();List<Cell>cells=new ArrayList();//List转String String str= objectMapper.writeValueAsString(cells);//String转List List<Cell> cellList = objectMapper.readValue(str, new TypeReference<List<Cell>>() {});
ObjectMapper objectMapper =newObjectMapper(); List<Cell>cells=newArrayList();//List转StringString str=objectMapper.writeValueAsString(cells);//String转ListList<Cell> cellList = objectMapper.readValue(str,newTypeReference<List<Cell>>() {});
}publicstatic<T> T stringToObject(String json,Class<T> object)throwsIOException {returnobjectMapper.readValue(json,object); }publicstatic<T> List<T> stringToList(String json,Class<T>object){try{ CollectionType listType= objectMapper.getTypeFactory().constructCollectionType(ArrayList.class, object); ...
for (Map.Entry<String, String[]> params : parMap.entrySet()) { String key = params.getKey(); String val = params.getValue()[0]; String[] valArray = val.split(","); if (key.equals("likes")) { jsonMap.put(key, JsonConventUtils.strArrayTostrSet(valArray)); ...
当使用ClassCastException将ObjectMapper反序列化到参数化类时，甚至使用TypeReference和TypeFactory在Optional...
findArchiveDto.setCustName("明华"); findArchiveDto.setDepartmentName("赵无极"); 1. 2. 3. 4. fastjson转换方法: //Object转Map Map map = JSONObject.parseObject(JSONObject.toJSONString(findArchiveDto), Map.class); Map<String,Object> map = JSONObject.parseObject(JSON.toJSONString(findArchiveDto...
readValue(String content, TypeReference<T> valueTypeRef):T表示泛型类型,如List<T>这种类型,一般用于集合/Map的反序列化 readValue(String content, JavaType valueType):Jackson内置的JavaType类型,后再详解(使用并不多) 代码语言:txt AI代码解释 @Test ...
readValue(String content, Class<T> valueType):读为指定class类型的对象,此方法最常用 readValue(String content, TypeReference<T> valueTypeRef):T表示泛型类型,如List<T>这种类型,一般用于集合/Map的反序列化 readValue(String content, JavaType valueType):Jackson内置的JavaType类型,后再详解(使用并不多) ...
/** * 字符串转 List<实体类> * * @param mapper * @param jsonString */ public static void stringToStudentList(ObjectMapper mapper, String jsonString) { jsonString = "[{\"id\":1001,\"name\":\"Tom\",\"info\":\"一个小男孩\"},{\"id\":1002,\"name\":\"Jane\",\"info\":\"...