Groovy 读取json文件,并用gson反序列化

package com.bicycle.util
import bicycle_grails.StationInfo
import com.google.gson.Gson
import com.google.gson.JsonArray
import com.google.gson.JsonObject
import com.google.gson.JsonParser
import com.google.gson.reflect.TypeToken
import java.io.* /**
* Created by gao on 2017/3/22.
*/
class Test { static void main(String[] args) {
String data = ReadFile("C:\\project\\station.json");
SqlConnect.init()
//创建gson对象,用于json处理
Gson gson=new Gson()
//将从json字符串中读取的数据转换为接送对象
JsonObject returnData = new JsonParser().parse(data).getAsJsonObject()
//获取json数组对象
JsonArray jsonArray= returnData.getAsJsonArray("station")
//将json数组对象转换成list集合,gson提供fromJson方法进行放序列化
List<StationInfo> retList = gson.fromJson(jsonArray, new TypeToken<List<StationInfo>>(){}.getType())
for(StationInfo stationInfo:retList){
def sql="insert into station_info (station_id, area_id,station_name,lng,lat,lng1,lat1,stall_num,address,is_all_day,person_duty) values (${stationInfo.station_id}, ${stationInfo.area_id},${stationInfo.station_name},${stationInfo.lng},${stationInfo.lat},${stationInfo.lng1},${stationInfo.lat1},${stationInfo.stall_num},${stationInfo.address},${stationInfo.is_all_day},${stationInfo.person_duty})"
println(sql)
SqlConnect.getConnection().execute(sql)
}
}
static String ReadFile(String Path) {
BufferedReader reader = null
String laststr = ""
try {
//将json文件读入fileInputStream对象
FileInputStream fileInputStream = new FileInputStream(Path)
//将文件流转换为字符输入流,格式为UTF-8
//InputStreamReader : 是字节流与字符流之间的桥梁,能将字节流输出为字符流,并且能为字节流指定字符集,可输出一个个的字符;
InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "utf-8")
//BufferedReader : 提供通用的缓冲方式文本读取,readLine读取一个文本行,也可以从字符输入流中读取文本,缓冲各个字符,从而提供字符、数组和行的高效读取。
reader = new BufferedReader(inputStreamReader)
String tempString = null
while ((tempString = reader.readLine()) != null) {
laststr += tempString
}
reader.close()
} catch (IOException e) {
e.printStackTrace()
} finally {
if (reader != null) {
try {
reader.close()
} catch (IOException e) {
e.printStackTrace()
}
}
}
return laststr
}
}
05-11 11:07