miduo_pay/src/main/java/com/jmfy/util/JsonUtil.java

80 lines
2.4 KiB
Java

package com.jmfy.util;
import com.google.gson.Gson;
import com.jmfy.controller.RechargeController;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.http.HttpServletRequest;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
public class JsonUtil {
private static final Logger LOGGER = LoggerFactory.getLogger(JsonUtil.class);
private static JsonUtil jsonUtil;
private Gson gson = new Gson();
private static class InnerClass {
private static final JsonUtil SINGLETON = new JsonUtil();
}
public static JsonUtil getInstence() {
if (jsonUtil == null) {
jsonUtil = JsonUtil.InnerClass.SINGLETON;
}
return jsonUtil;
}
public Gson getGson() {
return gson;
}
public HashMap<String, String> getParameterMap(HttpServletRequest request) {
HashMap<String, String> map = new HashMap();
Enumeration paramNames = request.getParameterNames();
while (paramNames.hasMoreElements()) {
String paramName = (String) paramNames.nextElement();
String[] paramValues = request.getParameterValues(paramName);
String paramValue = paramValues[0];
map.put(paramName, paramValue);
LOGGER.info("parameter : " + paramName + "=" + paramValue);
}
return map;
}
public static String getServiceKey(String serviceName, String host, String port) {
StringBuilder sb = new StringBuilder();
return sb.append(serviceName).append("|")
.append(host).append("|")
.append(port).toString();
}
/**
* 获取日期前一天
* @param specifiedDay
* @return
*/
public static String getSpecifiedDayBefore(String specifiedDay){
//SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
Date date=null;
try {
date = new SimpleDateFormat("yy-MM-dd").parse(specifiedDay);
} catch (ParseException e) {
e.printStackTrace();
}
c.setTime(date);
int day=c.get(Calendar.DATE);
c.set(Calendar.DATE,day-1);
String dayBefore=new SimpleDateFormat("yyyy-MM-dd").format(c.getTime());
return dayBefore;
}
}