代码如下: 1packagecom;23importorg.codehaus.jackson.map.ObjectMapper;4importorg.json.JSONArray;5importorg.json.JSONObject;6importorg.slf4j.Logger;7importorg.slf4j.LoggerFactory;89importjava.io.*;10importjava.util.Map;1112/**13* Hello world!14*15*/16publicclassJsonAnalysis17{18privatestaticfinalL...
Map map = JSONObject.parseObject(JSONObject.toJSONString(findArchiveDto), Map.class); Map<String,Object> map = JSONObject.parseObject(JSON.toJSONString(findArchiveDto)); //Map转Object FindArchiveDto findArchiveDto1 = JSON.parseObject(JSON.toJSONString(map), FindArchiveDto.class); FindArchiveDto...
importcom.fasterxml.jackson.databind.ObjectMapper;importjava.util.HashMap;importjava.util.Map;publicclassMapToDTOExample{publicstaticvoidmain(String[]args){// 步骤1:创建一个包含待转换字段的Map对象Map<String,Object>data=newHashMap<>();data.put("name","John Doe");data.put("age",25);data.put(...
对于小部件属性，您需要为键/值对象创建一个类，并将映射更改为数组。您的新对象将如下所示：...
因为其他属性都被JsonIgnore了 后续可以看看jackson源码，不过现在rocketmq源码都block住了 https://www.mkyong.com/java/java-convert-object-to-map-example/ https://stackoverflow.com/questions/35848506/how-to-convert-not-all-attributes-from-a-java-object-to-json-using-jackson-objec https:...
能够实现使用关键字expression
1、继续将这个LinkedHashMap进行序列化程JSON,然后再反序列化,但是这样效率就低了。 2、直接使用自带的convertValue方法将这个LinkedHashMap以Object类型转成想要的实体。 样例: POJO pojo = mapper.convertValue(singleObject, POJO.class);//or:List<POJO> pojos = mapper.convertValue(listOfObjects,newTypeReference...
使用ObjectMapper的readValue()方法将JSON字符串反序列化为Map对象。 代码语言:txt 复制 String json = "{\"key1\":\"value1\",\"key2\":\"value2\"}"; try { Map<String, Object> map = objectMapper.readValue(json, new TypeReference<Map<String, Object>>() {}); // 这里的TypeReference...
将JSON解析为Java Map: @Testpublic void jsonToMap() throws Exception { String jsonString = "{\"name\":\"BMW\",\"color\":\"Black\"}"; ObjectMapper objectMapper = new ObjectMapper(); Map<String, Object> map = objectMapper.readValue(jsonString, new Type...
Map map1 = JacksonTest.beanToMap(person); System.out.println(map1); } // 将对象转成字符串 public static String objectToString(Object obj) throws Exception { return mapper.writeValueAsString(obj); } // 将Map转成指定的Bean public static Object mapToBean(Map map, Class clazz) throws Except...