一、List<String> 转json,这里用hutool工具类 List<String> list = new ArrayList<>(); 假如存入数据: list.add("a"); list.add("b"); String json = JSONUtil.toJsonStr(list); 此时的json格式为 ["a","b"],最外层会有一个[ ],里面每个元素都会有" "; 而如果每一个元素是对象的话,则是这样...
现在,我们可以使用StringRedisTemplate将转换后的JSON字符串存入Redis: @AutowiredprivateStringRedisTemplatestringRedisTemplate;publicvoidsaveListToRedis(List<User>userList,Stringkey)throwsJsonProcessingException{Stringjson=JsonUtils.toJson(userList);stringRedisTemplate.opsForValue().set(key,json);} 1. 2. 3. ...
public static string Obj2Json<T>(T data) { try { System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(data.GetType()); using (MemoryStream ms = new MemoryStream()) { serializer.WriteObject(ms, data); return Encod...
方法/步骤 1 将数组转换为JSON:String[] arr = {"asd","dfgd","asd","234"};JSONArray jsonarray = JSONArray.fromObject(arr);System.out.println(jsonarray);2 对象转换成JSON:UserInfo user = new UserInfo(1001,"张三");JSONArray jsonArray = JSONArray.fromObject(user); System.out.println( js...
1.在executeHttpGet中获取json格式的接收值,存入String类型的变量中,假设该变量是:receivestring 2.将该receivestring转化为jsonarray: 3.reJsonArray中包含了上述的20个jsonobject,所以现在就需要遍历reJsonArray,将每个jsonobject中所携带的key-value对存入map<>中,此处若有不解,先看一下上面的那个存储结构,再结合...
ArrayNode有一个remove方法,该方法接受要删除的数组索引。下面是一个简单示例,它解析JSON字符串,从JSON...
public String execute(){ SexService sexService = SexServiceFactory.getSexService(); List sexList = sexService.showSex(); StringBuilder sb = new StringBuilder();//构造json sb.append("["); if(sexList.size()>0) { for(Xtwh_Sex sex:sexList)//遍历 sexList { sb.append("{\"...
StringBuilder sb = new StringBuilder();List<string> ls = new List<string>();ls.Add("百");ls.Add("度");ls.Add("知");ls.Add("道");ls.Add("行");ls.Add("家");System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer(...
jar,可以到这里下载:http://json-lib.sourceforge.net/ // 代码实例 List<String> list = new ArrayList<String>();list.add("abc");list.add("123");net.sf.json.JSONArray jsonArray = net.sf.json.JSONArray.fromObject(list);System.out.println(jsonArray.toString());...
示例: 将 Map 转为 json string 1.创建 Map 并初始化 Map<String, String> params = new HashMap<>();params.put("key1", "value1");params.put("key2", "value2");params.put("key3", "value3"); 2.构建 Gson 对象 Gson gson = new GsonBuilder().create(); ...