+++JSON獲取代碼+++++++++++++++++++
獲取json數據是list仍是單列
List<SingleChoiceVo> singleChoiceList = new ArrayList<SingleChoiceVo>();
if(null!=job.get("singleChoice")){
Object listArray_singleChoice = new JSONTokener(job.get("singleChoice").toString()).nextValue();
if (listArray_singleChoice instanceof JSONArray){
JSONArray jsonArray = (JSONArray)listArray_singleChoice;
for (int k = 0; k < jsonArray.size(); k++) {
JSONObject parameterObject = jsonArray.getJSONObject(k);
SingleChoiceVo comvo= JSON.parseObject(parameterObject.toString(),SingleChoiceVo.class);
singleChoiceList.add(comvo);
}
}else if (listArray_singleChoice instanceof JSONObject) {
JSONObject jsonObject3 = (JSONObject)listArray_singleChoice;
singleChoiceList= JSON.parseArray(jsonObject3.toString(),SingleChoiceVo.class);
}
}
answer.setSingleChoice(singleChoiceList);
+++系統判斷代碼+++++++++++++++++++
判斷windows系統仍是 Linux系統html
Properties prop = System.getProperties();
String os = prop.getProperty("os.name");
if (os != null && os.toLowerCase().indexOf("linux") > -1) {
folder= new File("//usr//local//");
} else {
folder = new File("D:\\images");
}
+++驗證代碼+++++++++++++++++++
/**
* 驗證是否爲手機號
*
* @param mobileNo
* @return
*/
public static boolean isValidMobileNo(String mobileNo) {
// 一、(13[0-9])|(15[02789])|(18[679])|(17[0-9]) 13段 或者15段 18段17段的匹配
// 二、\\d{8} 整數出現8次
boolean flag = false;
Pattern p = Pattern.compile("^((13[0-9])|(15[0-9])|(18[0-9])|(17[0-9]))\\d{8}$");
Matcher match = p.matcher(mobileNo);
if (mobileNo != null) {
flag = match.matches();
}
return flag;
}java
/**
* 驗證是否爲正確的郵箱號
*
* @param email
* @return
*/
public static boolean isValidEmail(String email) {
// 一、\\w+表示@以前至少要輸入一個匹配字母或數字或下劃線 \\w 單詞字符:[a-zA-Z_0-9]
// 二、(\\w+\\.)表示域名. 如新浪郵箱域名是sina.com.cn
// {1,3}表示能夠出現一次或兩次或者三次.
String reg = "\\w+@(\\w+\\.){1,3}\\w+";
Pattern pattern = Pattern.compile(reg);
boolean flag = false;
if (email != null) {
Matcher matcher = pattern.matcher(email);
flag = matcher.matches();
}
return flag;
}linux
+++MD5加密代碼+++++++++++++++++++
package com.cn.riwise.m.api.util;git
import java.security.MessageDigest;json
public class MD5Util {windows
private static String byteArrayToHexString(byte b[]) {
StringBuffer resultSb = new StringBuffer();
for (int i = 0; i < b.length; i++)
resultSb.append(byteToHexString(b[i]));api
return resultSb.toString();
}服務器
private static String byteToHexString(byte b) {
int n = b;
if (n < 0)
n += 256;
int d1 = n / 16;
int d2 = n % 16;
return hexDigits[d1] + hexDigits[d2];
}session
public static String MD5Encode(String origin, String charsetname) {
String resultString = null;
try {
resultString = new String(origin);
MessageDigest md = MessageDigest.getInstance("MD5");
if (charsetname == null || "".equals(charsetname))
resultString = byteArrayToHexString(md.digest(resultString
.getBytes()));
else
resultString = byteArrayToHexString(md.digest(resultString
.getBytes(charsetname)));
} catch (Exception exception) {
}
return resultString;
}app
private static final String hexDigits[] = { "0", "1", "2", "3", "4", "5",
"6", "7", "8", "9", "a", "b", "c", "d", "e", "f" };
public static void main(String[] args) {
System.out.println(MD5Util.MD5Encode("1", null));
}
}
++++++++++郵件發送代碼++++++++
public static void main(String [] args) throws GeneralSecurityException { // 收件人電子郵箱 String to = "xxxxxxx@126.com"; // 發件人電子郵箱 String from = "xxxxx@qq.com"; // 指定發送郵件的主機爲 smtp.qq.com String host = "smtp.qq.com"; //QQ 郵件服務器 // 獲取系統屬性 Properties properties = System.getProperties(); // 設置郵件服務器 properties.setProperty("mail.smtp.host", host); properties.put("mail.smtp.auth", "true"); MailSSLSocketFactory sf = new MailSSLSocketFactory(); sf.setTrustAllHosts(true); properties.put("mail.smtp.ssl.enable", "true"); properties.put("mail.smtp.ssl.socketFactory", sf); // 獲取默認session對象 Session session = Session.getDefaultInstance(properties,new Authenticator(){ public PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication("xxxxxx@qq.com", "azmdzupofjrjbdbc"); //發件人郵件用戶名、密碼 } }); try{ // 建立默認的 MimeMessage 對象 MimeMessage message = new MimeMessage(session); // Set From: 頭部頭字段 message.setFrom(new InternetAddress(from)); // Set To: 頭部頭字段 message.addRecipient(Message.RecipientType.TO,new InternetAddress(to)); // Set Subject: 頭部頭字段 message.setSubject("This is the Subject Line!"); // 設置消息體 message.setContent("<h1>This is actual message</h1>", "text/html" ); // 發送消息 Transport.send(message); System.out.println("Sent message successfully....from runoob.com"); }catch (MessagingException mex) { mex.printStackTrace(); } }