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java的JsonObject对象提取值
- <code class="language-java">import com.alibaba.fastjson.JSON;
- import com.alibaba.fastjson.JSONArray;
- import com.alibaba.fastjson.JSONObject;
- import io.swagger.models.auth.In;
- import java.io.IOException;
- import java.security.KeyManagementException;
- import java.security.NoSuchAlgorithmException;
- import java.util.Iterator;
-
- public class test {
-
- public static void main(String[] args) throws Exception {
-
-
-
- String s="[{"success":true,"data":[{"building_id":"***","building_num":"**","room_name":"**","door_name":"**","electric":"**"}]}]" ;
- String b= s.substring(0,s.length()-1);
- String c=b.substring(1, b.length());
- System.out.println(b+"b___");
- JSONObject jsonx = JSON.parseObject(c);
- JSONArray ja = jsonx.getJSONArray("data");
- for (int i = 0; i < ja.size(); i++) {
- JSONObject jo = ja.getJSONObject(i);
- String building_id = jo.getString("building_id");
- System.out.println(building_id+"building_id>>>>>");
- }
-
-
-
- String s="[{"success":"true","password":"*1234567890"}]";
- String b= s.substring(0,s.length()-1);
- String c=b.substring(1, b.length());
- System.out.println(c+"c___");
- JSONObject reagobj = JSONObject.fromObject(c);
- String name = reagobj.getString("password");
- System.out.println(name+"name,,,,,,");
- String password = jm.getString("password");
- System.out.println(password);
- System.out.println("看看有没有值"+password);
-
-
-
-
- String res="{"data":{"access_token":"5a7040ccf66bafd06acd39b6f61c19230eaba426755509646d6da23ddd9fb206","expires_second":36000},"rlt_code":"HH0000","rlt_msg":"成功"}";
- JSONObject jsonObject= JSON.parseObject(res);
- String data = jsonObject.getString("data");
- JSONObject jsondata= JSON.parseObject(data);
- String token = jsondata.getString("access_token");
-
-
-
-
- String res="{"data":{"total":23,"start":0,"total_page":3,"rows":[{"op_way":"1","op_time":1493884964000,"pwd_no":31},{"op_way":"3","user_mobile":"18518517491","op_time":1493884615032,"pwd_no":30},{"op_way":"3","user_mobile":"18518517491","op_time":1493883836552,"pwd_no":30},{"op_way":"1","op_time":1493883294000,"pwd_no":31},{"op_way":"1","op_time":1493883256000,"pwd_no":31},{"op_way":"3","user_mobile":"15321918571","op_time":1493883015371,"pwd_no":30},{"op_way":"1","op_time":1493882007000,"pwd_no":31},{"op_way":"3","user_mobile":"15321918571","op_time":1493881498520,"pwd_no":30},{"op_way":"3","user_mobile":"15321918571","op_time":1493881391976,"pwd_no":30},{"op_way":"1","op_time":1493880995000,"pwd_no":31}],"current_page":1,"page_size":10},"rlt_code":"HH0000","rlt_msg":"成功"}";
- JSONObject jsonObject= JSON.parseObject(res);
- String data = jsonObject.getString("data");
- JSONObject jsonObjects= JSON.parseObject(data);
- JSONArray ja = jsonObjects.getJSONArray("rows");
- for (int i = 0; i < ja.size(); i++) {
- JSONObject jo = ja.getJSONObject(i);
- String op_way = jo.getString("op_way");
- String op_time = jo.getString("op_time");
- SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- long lt = new Long(op_time);
- Date date = new Date(lt);
- res = simpleDateFormat.format(date);
- String pwd_no = jo.getString("pwd_no");
- String user_mobile = jo.getString("user_mobile");
- System.out.println(op_way+res+pwd_no+user_mobile+"------------");
- }
-
-
-
- }
-
- }</code>
-
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原文地址:https://www.cnblogs.com/Darkqueen/p/9699398.html
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