public void givenJavaObject_whenUsingJackson_thenConvertToMap() { ObjectMapper objectMapper = new ObjectMapper(); Map<String, Object> map = objectMapper .convertValue(employee, new TypeReference<Map<String, Object>>() {}); Assert.assertEquals(employee.getName(), map.get("name")); Assert.assertEq...
如果由于某种原因无法使用Jackson,那么可以考虑使用Gson。 Employee employee = new Employee(1, "Alex", LocalDate.of(1995, 1, 2), List.of("Delhi", "Nevada"), List.of(new Role(11, "Finance"), new Role(12, "HR"))); System.out.println(convertObjectToMapUsingGson(employee)); static Map<S...
privatevoidconvertObjToMapJackson(){ObjectMapperoMapper=newObjectMapper();Studentstudent=newStudent();student.setId(1);student.setName("Terek");Map<String,Object>studentMap=oMapper.convertValue(student,Map.class);System.out.println(studentMap);} Summary This tutorial provides several ways of converting...
Object>map=null;//和List一样,Map依旧需要反序列化JavaType javaType=mapper.getTypeFactory().constructParametricType(HashMap.class,String.class,Object.class);try{//JSONObject jsonObject = new JSONObject(messageMap);map
into a map using jackson: @test public void givenjavaobject_whenusingjackson_thenconverttomap() { objectmapper objectmapper = new objectmapper(); map<string, object> map = objectmapper .convertvalue(employee, new typereference<map<string, object>>() {}); assert.assertequals(employee.getname(), ...
This Java tutorial taught us toconvert a given Java object into a Mapusing different solutions. By looking at all solutions, Jackson seems the best solution in terms of ease and performance and is recommended approach in most cases. For creating flat structures, we can convertObjecttoPropertiesus...
3. 实现Map到对象的转换方法 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...
2、Object TO Map 可以使用 jackson 来进行转换 首先pom 中引入对应的包 <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.6.3</version> </dependency> 直接上测试案例: importcom.fasterxml.jackson.databind.ObjectMapper;importjava.util.Arrays...
Java通过Jackson将任意对象转换为HashMap SDK 代码语言: // 西瓜Sdk代码 , (JSONObject)JSONObject.toJSON(requestBody) 最终将对象转换为HashMapString data=createLinkString((JSONObject)JSONObject.toJSON(requestBody),nullHttpHeaders headers=createHMACHeadersappKeyIdappSecretdata);...
whenUsingJackson_thenConvertToMap(){ObjectMapperobjectMapper=newObjectMapper(); Map<String, Object> map = objectMapper .convertValue(employee,newTypeReference<Map<String, Object>>() {}); Assert.assertEquals(employee.getName(), map.get("name")); Assert.assertEquals(employee.getAge(), map.get("...