privatevoidconvertObjToMapReflection(){Map<String,Object>studentMap=newHashMap<String,Object>();Studentstudent=newStudent();student.setId(1);student.setName("Terek");Field[]allFields=student.getClass().getDecla
public void givenJavaObject_whenUsingGson_thenConvertToMap() { Gson gson = new Gson(); String json = gson.toJson(employee); Map<String, Object> map = gson.fromJson(json, new TypeToken<Map<String, Object>>() {}.getType()); Assert.assertEquals(employee.getAddress().getStreet(), ((Map...
如果Object无法转换为Map,则抛出异常或进行错误处理: 如果对象无法转换为Map,你可能需要抛出异常或进行其他形式的错误处理。 java public static Map<Object, Object> convertToObjectMap(Object obj) { if (obj instanceof Map) { return (Map<Object, Object>) obj; } else { throw new Illega...
同样地,我们需要一个方法将Map转换回User对象。 importjava.lang.reflect.Field;importjava.util.Map;publicclassMapToObjectConverter{publicstatic<T>TconvertMapToObject(Map<String,Object>map,Class<T>clazz){Tobj=null;try{// 创建一个新的对象实例obj=clazz.getDeclaredConstructor().newInstance();// 遍历Map...
Map<String,Object>map=newHashMap<>();// 根据实际情况,使用步骤2或步骤3的代码将属性值放入map 1. 2. 步骤5:完成转换 至此,我们已经完成了Object转Map的整个流程。 publicMap<String,Object>convertObjectToMap(Objectobj){if(hasGetter(obj)){try{returnobjectToMapWithReflection(obj);}catch(IllegalAccessExce...
@TestpublicvoidgivenJavaObject_whenUsingReflection_thenConvertToMap()throwsIllegalAccessException { Map<String, Object> map = convertUsingReflection(employee); Assert.assertEquals(employee.getName(), map.get("name")); Assert.assertEquals(employee.getAge(), map.get("salary")); }privateMap<String, ...
System.out.println(convertObjectToMapUsingObjectMapper(employee)); //转换方法 static Map<String, String> convertObjectToMapUsingObjectMapper(Employee employee) { ObjectMapper objectMapper = new ObjectMapper(); objectMapper.registerModule(new JavaTimeModule()); ...
Java对象转Map<String,String> Java对象转Map<String,String> importorg.springframework.beans.BeanUtils;importorg.springframework.util.ReflectionUtils;privatestaticMap<String, String>convertObjectToMap(Object obj){returnArrays.stream(BeanUtils.getPropertyDescriptors(obj.getClass()))...
将Object 转为 Map 在Java 中,我们可以使用反射的机制来将 Object 转换为 Map。下面是一个示例代码: importjava.lang.reflect.Field;importjava.util.HashMap;importjava.util.Map;publicclassObjectToMapExample{publicstaticMap<String,Object>convertObjectToMap(Objectobj){Map<String,Object>map=newHashMap<>();...
, using the object’s field names as keys, and their values as values: @test public void givenjavaobject_whenusingreflection_thenconverttomap() throws illegalaccessexception { map<string, object> map = convertusingreflection(employee); assert.assertequals(employee.getname(), map.get("name"));...