package com.yeshi.buwan.util;
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import com.google.gson.*;
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import javax.persistence.Entity;
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import javax.servlet.http.HttpServletRequest;
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import java.io.*;
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import java.lang.reflect.Type;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.text.DateFormat;
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import java.util.*;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* @author Administrator
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*/
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@Entity
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public class StringUtil {
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// 判断是否为电话号码
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public static boolean isMobile(String mobile) {
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String regex = "^((13[0-9])|(17[0-9])|(15[^4,\\D])|(18[0-9]))\\d{8}$";
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Pattern p = Pattern.compile(regex);
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Matcher m = p.matcher(mobile);
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if (mobile == null || mobile.equals("") || mobile.length() != 11) {
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return false;
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} else {
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return m.find();
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}
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}
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/**
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* 连接数组内的元素
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*
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* @param srcList
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* @param seperate
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* @return
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*/
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public static String join(List srcList, String seperate) {
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String st = "";
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for (int i = 0; i < srcList.size(); i++) {
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st += srcList.get(i) + seperate;
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}
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if (st.endsWith(seperate)) {
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st = st.substring(0, st.length() - seperate.length());
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}
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return st;
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}
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public static String join(Collection srcList, String seperate) {
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String st = "";
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for (Iterator<String> its = srcList.iterator(); its.hasNext(); ) {
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st += its.next() + seperate;
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}
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if (st.endsWith(seperate)) {
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st = st.substring(0, st.length() - seperate.length());
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}
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return st;
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}
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/**
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* 随机码生成
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*
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* @return
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*/
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public static String getRandomCode() {
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String sts = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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String code = "";
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for (int i = 0; i < 10; i++) {
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int p = (int) (Math.random() * 26);
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code += sts.charAt(p);
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}
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return code;
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}
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/**
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* 验证码生成
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*
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* @return
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*/
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public static String getVerifyCode() {
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return getNumberVerifyCode(6);
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}
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public static String getNumberVerifyCode(int number) {
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String sts = "0123456789";
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String code = "";
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for (int i = 0; i < number; i++) {
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int p = (int) (Math.random() * 10);
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code += sts.charAt(p);
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}
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return code;
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}
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public static String getVerifyCode(int number) {
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String sts = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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String code = "";
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for (int i = 0; i < number; i++) {
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int p = (int) (Math.random() * sts.length());
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code += sts.charAt(p);
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}
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return code;
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}
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// 获取短信发送的格式
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public static String getMessageStyle(String code) {
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return "校验码:" + code + ",用于账号注册。【请勿向任何人提供您收到的短信校验码】";
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}
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// 是否是空的字符串
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public static boolean isNullOrEmpty(String text) {
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if (text == null || text.length() == 0 || text.equals("null")) {
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return true;
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}
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return false;
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}
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// 32位MD5加密
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public static String Md5(String st) {
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try {
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MessageDigest md = MessageDigest.getInstance("MD5");
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try {
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md.update(st.getBytes("UTF-8"));
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} catch (UnsupportedEncodingException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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byte b[] = md.digest();
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int i;
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StringBuffer buf = new StringBuffer("");
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for (int offset = 0; offset < b.length; offset++) {
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i = b[offset];
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if (i < 0)
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i += 256;
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if (i < 16)
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buf.append("0");
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buf.append(Integer.toHexString(i));
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}
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LogUtil.i("MD5加密后的值:" + buf.toString());
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return buf.toString();
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// LogUtil.i("result: " + buf.toString());// 32位的加密
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// LogUtil.i("result: " + buf.toString().substring(8,
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// 24));// 16位的加密
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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}
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return null;
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}
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public static String getString(String st) {
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return isNullOrEmpty(st) ? "" : st;
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}
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public static String getString(int i) {
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return getString(i + "");
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}
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public static String getString(long i) {
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return getString(i + "");
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}
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// 输出JSON的数据格式
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public static String outPutResultJson(Object o) {
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if (o instanceof String) {
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return o.toString();
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} else {
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Gson gson = new GsonBuilder().enableComplexMapKeySerialization().excludeFieldsWithoutExposeAnnotation()
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.setDateFormat(DateFormat.LONG).registerTypeAdapter(Date.class, new JsonSerializer<Date>() {
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@Override
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public JsonElement serialize(Date value, Type theType, JsonSerializationContext context) {
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if (value == null) {
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return new JsonPrimitive("0");
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} else {
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return new JsonPrimitive(value.getTime());
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}
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}
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}).setFieldNamingPolicy(FieldNamingPolicy.UPPER_CAMEL_CASE)// 会把字段首字母大写
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.setPrettyPrinting().setVersion(1.0).create();
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String st = gson.toJson(o);
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return Utils.JsonFilter(st);
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}
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}
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// 输出JSON的数据格式
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public static JsonArray outPutResultJson(List<Object> list) {
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Gson gson = new GsonBuilder().enableComplexMapKeySerialization().excludeFieldsWithoutExposeAnnotation()
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.setDateFormat(DateFormat.LONG).setFieldNamingPolicy(FieldNamingPolicy.UPPER_CAMEL_CASE)// 会把字段首字母大写
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.setPrettyPrinting().setVersion(1.0).create();
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JsonParser parser = new JsonParser();
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JsonElement el = parser.parse(gson.toJson(list).toString());
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// 把JsonElement对象转换成JsonObject
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JsonObject jsonObj = null;
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if (el.isJsonObject()) {
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jsonObj = el.getAsJsonObject();
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}
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// 把JsonElement对象转换成JsonArray
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JsonArray jsonArray = null;
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if (el.isJsonArray()) {
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jsonArray = el.getAsJsonArray();
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}
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return jsonArray;
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}
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/*
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* 获取中间带星号的电话号码
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*/
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public static String getSubMobile(String mobile) {
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if (!StringUtil.isNullOrEmpty(mobile) && mobile.length() > 10) {
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return mobile.subSequence(0, 3).toString() + "****" + mobile.subSequence(7, mobile.length()).toString();
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} else
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return mobile;
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}
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public static String formatNumber(String number) {
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if (!isNullOrEmpty(number)) {
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float f = Float.parseFloat(number);
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if (f % 1.0 == 0) {
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return ((int) f + "");
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} else if (f % 0.1 == 0) {
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return (NumberUtil.get1PointNumber(f) + "");
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}
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return f + "";
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} else {
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return 0 + "";
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}
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}
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public static String getAbsoluteUrl(HttpServletRequest request, String url) {
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if (StringUtil.isNullOrEmpty(url))
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return "";
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if (url.startsWith("http://") || url.startsWith("https://"))
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return url;
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else
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return "http://" + Constant.WEBSITE + "/BuWan" + url;
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}
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public static int getPage(String page) {
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if (StringUtil.isNullOrEmpty(page)) {
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return 0;
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} else {
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try {
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return Integer.parseInt(page);
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} catch (Exception e) {
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return 0;
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}
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}
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}
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public static String getBase64(String str) {
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byte[] b = null;
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String s = null;
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try {
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b = str.getBytes("utf-8");
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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}
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if (b != null) {
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s = Base64.getEncoder().encodeToString(b);
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}
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return s;
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}
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public static String getBase64FromByte(byte[] b) {
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String s = null;
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if (b != null) {
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s = Base64.getEncoder().encodeToString(b);
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}
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return s;
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}
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// 解密
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public static String getFromBase64(String s) {
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String result = null;
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if (s != null) {
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byte[] b = Base64.getDecoder().decode(s);
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try {
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result = new String(b, "utf-8");
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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return result;
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}
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public static byte[] getFromBase64Byte(String s) {
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return Base64.getDecoder().decode(s);
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}
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public static String getNumberFromString(String st) {
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String number = "";
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Pattern p = Pattern.compile("[0-9\\.]+");
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Matcher m = p.matcher(st);
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while (m.find()) {
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number += (m.group() + ",");
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}
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return number;
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}
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public static String getNotNullString(String st) {
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if (isNullOrEmpty(st))
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return "";
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else
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return st;
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}
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public static String getUTF8String(String resource, String chactor) {
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if (!isNullOrEmpty(resource)) {
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try {
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return new String(resource.getBytes(chactor), "UTF-8");
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} catch (UnsupportedEncodingException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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return "";
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}
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@SuppressWarnings("restriction")
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public static boolean generateImageFromBase64(String imgStr, String imgFilePath) { // 对字节数组字符串进行Base64解码并生成图片
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if (!new File(imgFilePath).exists())
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try {
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new File(imgFilePath).createNewFile();
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} catch (IOException e1) {
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e1.printStackTrace();
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}
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if (imgStr == null) // 图像数据为空
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return false;
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try {
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// Base64解码
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byte[] b = Base64.getDecoder().decode(imgStr);
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for (int i = 0; i < b.length; ++i) {
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if (b[i] < 0) {// 调整异常数据
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b[i] += 256;
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}
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}
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OutputStream out = new FileOutputStream(imgFilePath);
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out.write(b);
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out.flush();
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out.close();
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return true;
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} catch (Exception e) {
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e.printStackTrace();
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return false;
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}
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}
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public static boolean match(String regix, String src) {
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Pattern p = Pattern.compile(regix);
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Matcher m = p.matcher(src);
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return m.find();
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}
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}
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