{ "_longitude": 121.56993103027344, "_carrier": "中国移动", "_os": "iOS", "act_time_ts_ms": 1685260787010, "_province": "辽宁省", "keyword": "2023-05-28 09:39:52", "_app_version": "1.1.941", "_latitude": 38.981903076171875, "_os_version": "16.0", "platform_name": "享乐吧app", "_city": "大连市", "distinct_id": "744563", "_is_login_id": true, "_wifi": false, "_screen_height": 896, "_device_id": "862836ada98e476b371d1af8017dc59f", "event": "HeartBeat", "_screen_width": 414, "act_time": "2023-05-28 15:59:47", "_timezone_offset": -480, "_network_type": "", "_model": "iPhone12,1", "_ip": "223.102.57.42", "_country": "中国", "_manufacturer": "Apple" } java余元正则取出act_time_ts_ms的值

可以使用Java中的正则表达式来匹配字符串并提取act_time_ts_ms的值，示例代码如下：

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    public static void main(String[] args) {
        String data = "{ \"_longitude\": 121.56993103027344, \"_carrier\": \"中国移动\", \"_os\": \"iOS\", \"act_time_ts_ms\": 1685260787010, \"_province\": \"辽宁省\", \"keyword\": \"2023-05-28 09:39:52\", \"_app_version\": \"1.1.941\", \"_latitude\": 38.981903076171875, \"_os_version\": \"16.0\", \"platform_name\": \"享乐吧app\", \"_city\": \"大连市\", \"distinct_id\": \"744563\", \"_is_login_id\": true, \"_wifi\": false, \"_screen_height\": 896, \"_device_id\": \"862836ada98e476b371d1af8017dc59f\", \"event\": \"HeartBeat\", \"_screen_width\": 414, \"act_time\": \"2023-05-28 15:59:47\", \"_timezone_offset\": -480, \"_network_type\": \"\", \"_model\": \"iPhone12,1\", \"_ip\": \"223.102.57.42\", \"_country\": \"中国\", \"_manufacturer\": \"Apple\" }";
        String regex = "\"act_time_ts_ms\":\\s*(\\d+)";
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(data);
        if (matcher.find()) {
            String act_time_ts_ms = matcher.group(1);
            System.out.println(act_time_ts_ms);
        }
    }
}

输出结果为：

1685260787010