使用 google gson 转换Timestamp为JSON字符串

package com.test.base;

import java.lang.reflect.Type;
import java.sql.Timestamp;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

public class TimestampTypeAdapter implements JsonSerializer<Timestamp>, JsonDeserializer<Timestamp> {

private final DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

@Override
public Timestamp deserialize(JsonElement jsonElement, Type type, JsonDeserializationContext jsonDeserializationContext) throws JsonParseException {
if (!(jsonElement instanceof JsonPrimitive)) {
throw new JsonParseException("The data should be a string value");
}
try {
Date date = format.parse(jsonElement.getAsString());
return new Timestamp(date.getTime());
} catch (ParseException e) {
throw new JsonParseException(e);
}
}

@Override
public JsonElement serialize(Timestamp timestamp, Type type, JsonSerializationContext jsonSerializationContext) {
String dataFormatAsString = format.format(new Date(timestamp.getTime()));
return new JsonPrimitive(dataFormatAsString);
}

}

@Test
public void gsonTest() {
Gson gson1 = new GsonBuilder().registerTypeAdapter(Timestamp.class, new TimestampTypeAdapter()).setDateFormat("yyyy-MM-dd HH:mm:ss").create();
CascadeReport tem = new CascadeReport();
tem.setDate(new Timestamp(new Date().getTime()));
tem.setDepartment("武汉刑侦");
String jsonString = gson1.toJson(tem, CascadeReport.class);
System.out.println(jsonString);
//////////////////////////////////////////////////////////
String reportData = "[{date:\"2016-01-01 09:00:01\",department:\"xxxx\",ipAddress:\"192.168.120.120\",failedNum:2,ruleIDs:\"1002,1003\",regionCode:168430083,account:\"李四\",type:1 }]";
List<CascadeReport> list = gson.fromJson(reportData, new TypeToken<List<CascadeReport>>() {
}.getType());
System.out.println(list.get(0).getDate().toGMTString());
}