map转成json字符串

时间 2020-09-19 标签 map 转成 json 字符串

用maven引入fastjson jar包java

<dependency>
   <groupId>com.alibaba</groupId>
   <artifactId>fastjson</artifactId>
   <version>1.2.24</version>
</dependency>

Map map=new HashMap();
map.put("page_size","10");
map.put("page_index","1");
String  param= JSON.toJSONString(map);

===========================================================web

Map<String, Object> resultMap = new HashMap<>();
        resultMap.put("type", type);
        resultMap.put("id", 10);
        resultMap.put("name", "name");
        JSONArray jArray = new JSONArray();
        jArray.add(resultMap);
        String str = jArray.toString();