AG-ONE/commonapi/src/main/java/com/ag/util/CommonUtil.java

package com.ag.util;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * Created by shaoqiang on 8/28/16.
 */
public class CommonUtil {
    /**
     * 返回表格的beanlist
     * @param object
     * @param controlName
     * @param cudType
     * @param objeclass
     * @return
     */
    public static List getBeanlist(JSONObject object, String controlName, String cudType, Class objeclass){
        if (StrUtil.isEmpty(controlName)){
            controlName = "datatable";
        }
        String datarec1=((com.alibaba.fastjson.JSONObject) JSON.parseArray(object.getString(controlName)).get(0)).get(cudType).toString();
        return JSON.parseArray(datarec1, objeclass);
    }

    /**
     * 获取grid中需强制更新的列名
     * @param controlName
     * @return
     */
    public static String[] getNeedColsByJson(JSONObject object, String controlName){
        if (StrUtil.isEmpty(controlName)){
            controlName = "datatable";
        }
        String[] keys = null;
        JSONArray jsonArray = JSON.parseArray(object.getString(controlName)).getJSONObject(0).getJSONArray("update");
        if (!jsonArray.isEmpty()){
            com.alibaba.fastjson.JSONObject jsonObject = jsonArray.getJSONObject(0);
            Set<String> keySet = jsonObject.keySet();
            keySet.removeIf(key -> key.contains("#"));
            keys = new String[keySet.size()];
            keySet.toArray(keys);
        }
        return keys;
    }

    public static String[] getNeedColsByJsonStr(String jsonStr){
        com.alibaba.fastjson.JSONObject jsonObject = JSON.parseObject(jsonStr);
        Set<String> keySet = jsonObject.keySet();
        keySet.removeIf(key -> key.contains("#"));
        String[] keys = new String[keySet.size()];
        keySet.toArray(keys);
        return keys;
    }
    /**
     * 返回编辑表格的json数据
     * @param object
     * @param dataparam 获取数据参数
     * @param type 参数类型 包括create ,destory,update
     * @return
     */
    public static String parseJson(JSONObject object,String dataparam,String type){

       return  ((com.alibaba.fastjson.JSONObject) JSON.parseArray(object.getString(dataparam)).get(0)).get(type).toString();
    }
    public static String SendGET(String url,String param){
        String result="";//访问返回结果
        BufferedReader read=null;//读取访问结果

        try {
            //创建url
            URL realurl=new URL(url+"?"+param);
            //打开连接
            URLConnection connection=realurl.openConnection();
            // 设置通用的请求属性
            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            //建立连接
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段，获取到cookies等
            for (String key : map.keySet()) {
                System.out.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            read = new BufferedReader(new InputStreamReader(
                    connection.getInputStream(),"UTF-8"));
            String line;//循环读取
            while ((line = read.readLine()) != null) {
                result += line;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }finally{
            if(read!=null){//关闭流
                try {
                    read.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        return result;
    }
    public static  String time()
    {
        Date date=new Date();
        DateFormat format=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String time=format.format(date);

        return time;
    }

    /**
     * 字符串转化为日期格式
     * @param date
     * @param format
     * @return
     */
    public static  Date getDate(String date,String format){
        DateFormat ds=new SimpleDateFormat(format);
        Date date1=new Date();
        try {
            date1= ds.parse(date);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date1;
    }

    /**
     * 获取时间函数
     * @return
     */
    public static Date getNowDate(){
        Date nowDate=new Date();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            nowDate=sdf.parse(sdf.format(new Date()));
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return nowDate;
    };

    /**
     * 驼峰写法转表字段
     * @param JsonString
     * @return
     */
    public static String upJson(String JsonString) {
        if (JsonString == null) {
            return "";
        }
        JSONArray jsonArray = JSONArray.parseArray(JsonString);
        List jsonList = new ArrayList();
        for (int i = 0; jsonArray != null && i < jsonArray.size(); i++) {
            Map jsonMap = new HashMap();
            com.alibaba.fastjson.JSONObject jsonObject = jsonArray.getJSONObject(i);
            if (jsonObject != null) {
                Set<String> set = jsonObject.keySet();
                for (String key : set) {
                    jsonMap.put(underscoreName(key), jsonObject.get(key));
                }
                jsonList.add(jsonMap);
            }
        }
        //关闭引用检测后，重复引用对象时就不会被$ref代替，但是在循环引用时也会导致StackOverflowError异常。
        return JSON.toJSONString(jsonList, SerializerFeature.DisableCircularReferenceDetect);
    }

    /**
     * 处理字符
     * @param name
     * @return
     */
    public static String underscoreName(String name) {
        StringBuilder result = new StringBuilder();
        if (name != null && name.length() > 0) {
            // 将第一个字符处理成大写
            result.append(name.substring(0, 1).toUpperCase());
            // 循环处理其余字符
            for (int i = 1; i < name.length(); i++) {
                String s = name.substring(i, i + 1);
                // 在大写字母前添加下划线
                if (s.equals(s.toUpperCase())
                        && !Character.isDigit(s.charAt(0))) {
                    result.append("_");
                }
                // 其他字符直接转成大写
                result.append(s.toUpperCase());
            }
        }
        return result.toString();
    }


    public static boolean existsField(Class clz,String fieldName){
        try{
            return clz.getDeclaredField(fieldName)!=null;
        }
        catch(Exception e){
            //throw new RuntimeException(e.getCause());
        }
        if(clz!=Object.class){
            return existsField(clz.getSuperclass(),fieldName);
        }
        return false;
    }


    /**
     * 不够位数的在前面补0，保留code的长度位数字
     * @param code
     * @return
     */
    public static  String autoGenericCode(String code) {
        String result = "";
        // 保留code的位数
        result = String.format("%0" + code.length() + "d", Integer.parseInt(code));
        return result;
    }
    /**
     * 不够位数的在前面补0，保留num的长度位数字
     * @param code
     * @return
     */
    public static String autoGenericCode(String code, int num) {
        String result = "";
        // 保留num的位数
        // 0 代表前面补充0
        // num 代表长度为4
        // d 代表参数为正数型
        result = String.format("%0" + num + "d", Integer.parseInt(code));
        return result;
    }

    /**
     * 获取文件路径
     * @return
     */
    public static String getPath() {
        String str = CommonUtil.class.getResource("/").getPath();
        String basicPath = str.substring(0, str.indexOf("target"));
        String path = basicPath + "target/QhdImtos/wb/document/";
        return path;
    }

    public static void main(String args[]){
       /* String port="9090";
        String ports[]=port.split(",");
        System.out.println(ports[0]);*/
        int a=2;
        int b=4;
        a=a^b^a;
        b=b^a^b;
        System.out.println(a+"==="+b);

    }

}