Java中String类型转换成Map
背景:有时候string类" title="string类">string类型" title="string类型">string类型的数据取出来是个很标准的key、value形式,通过Gson的可以直接转成map
使用方式:
1 Gson gson = new Gson();2 Map<String, Object> map = new HashMap<String, Object>();
3 map = gson.fromJson(jsonString, map.getClass());#关键
4 String goodsid=(String) map.get("goods_id");
5 System.out.println("map的值为:"+goodsid);
jsong数据为:
{"goods_id":"140861765","cat_id":"210","goods_sn":"171073501","goods_sn_back":"171073501","goods_upc":null,"goods_name":"Lace-Up Boxer Swimming Trunks"}
是个很标准的key,value形式,转换后,在使用map分得到key,打印的map为
Gson的另外一种写法
1 public static Map<String, Object> json2map(String str_json) {2 Map<String, Object> res = null;
3 try {
4 Gson gson = new Gson();
5 res = gson.fromJson(str_json, new TypeToken<Map<String, Object>>() {
6 }.getType());
7 } catch (JsonSyntaxException e) {
8 }
9 return res;
10 }
gson在mavent的配置
1 <!-- 配置gson -->2 <dependency>
3 <groupId>com.google.code.gson</groupId>
4 <artifactId>gson</artifactId>
5 <version>2.2.4</version>
6 </dependency>
以上是 Java中String类型转换成Map 的全部内容, 来源链接: utcz.com/z/393850.html