String startTime = 2023-07-19 000000; String endTime = 2023-07-19 235959; Systemoutprintlnn + tinterfaceId admin_008_001n + tjsonParam param +

您可以通过字符串拼接的方式将变量值加到minAlarmDate和maxAlarmDate后面。请参考以下代码示例：

String startTime = "2023-07-19 00:00:00";
String endTime = "2023-07-19 23:59:59";
String jsonParam = "{\\\"param\\\":{" +
                "\\\"alarmType\\\":\\\"81\\\"," +
                "\\\"minAlarmDate\\\":\\\"" + startTime + "\\\"," +
                "\\\"maxAlarmDate\\\":\\\"" + endTime + "\\\"," +
                "\\\"alarmCategory\\\":\\\"device\\\"," +
                "\\\"deviceCode\\\":\\\"1000028\\\"}}";

String jsonString = "{\n" +
                "\t\"interfaceId\": \"admin_008_001\",\n" +
                "\t\"jsonParam\": \"" + jsonParam + "\"\n" +
                "}";

System.out.println(jsonString);

这样，startTime和endTime的变量值就会被正确地加到minAlarmDate和maxAlarmDate后面