随机数+组合
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title></title>
<script type="text/javascript">
var xmlhttp;
function createXmlHttpReq() {
if (window.ActiveXObject) {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
} else if (window.XMLHttpRequest) {
xmlhttp = new XMLHttpRequest();
}
}
function createAcct() {
createXmlHttpReq();
xmlhttp.open("GET",'<c:url value="/fundAcct.do"/>',false);
xmlhttp.onreadyStateChange = handleRes;
xmlhttp.send(null);
}
function handleRes() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
var div = document.createElement("div");
div.style.width=document.documentElement.offsetWidth-22;
div.style.height=document.documentElement.offsetHeight-22;
div.style.position="absolute";
div.style.top="0";
div.style.left="0";
div.style.background="#D4D4D4";
div.style.filter = "alpha(opacity=80)";
document.body.appendChild(div);
document.getElementById("result").innerHTML = xmlhttp.responseText;
}
}
</script>
</head>
<body bgcolor="#EBEEF7">
<c:if test="${empty RES}">
<c:if test="${not empty ERR}">
<div><font style="font-weight: bold;" color="red"><c:out value="${ERR}"/></font></div>
</c:if>
<form id="myForm" action="<c:url value="/fundAcct.do"/>" method="post" target="targetFrame">
编号：<input type="text" tabindex="0" name="fundNo" value="<c:out value="${fundAcctDTO.fundNo }"/>"/><br/>
名称：<input type="text" tabindex="1" name="fundName" value="<c:out value="${fundAcctDTO.fundName }"/>"/><br/>
<input type="submit" value="提交" id="sub">
</form>
<hr/><br/>
<iframe name="targetFrame" src="/blank.screen" frameborder="0"></iframe>
<script type="text/javascript">
parent.document.all.targetFrame.style.height=document.documentElement.scrollHeight;
parent.document.all.targetFrame.style.width=document.documentElement.scrollWidth;
</script>
</c:if>
<c:if test="${not empty RES}">
<table>
<tr><td>结果</td></tr>
<c:if test="${empty account}">
<tr><td>无结果</td></tr>
</c:if>
<c:if test="${not empty account}">
<c:forEach items="${account}" var="acc" varStatus="s">
<tr><td>
<c:out value="${acc}"/>----<c:out value="${blue[s.index]}"/>
</td></tr>
</c:forEach>
</c:if>
</table>
</c:if>
</body>
</html>
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.paic.pafa.app.lwc.service.databinding.BindException;
import com.paic.pafa.app.web.servlet.ModelAndView;
import com.paic.pafa.app.web.servlet.mvc.SimpleFormController;
import com.pingan.nts.extrading.invest.dto.FundAcctDTO;
public class FundAcctController extends SimpleFormController {
private static final Log LOG = LogFactory.getLog(FundAcctController.class);
@Override
protected ModelAndView onSubmit(HttpServletRequest request,
HttpServletResponse response, Object command, BindException errors)
throws Exception {
response.setContentType("text/html; charset=utf-8");
LOG.info("ENTER.....");
FundAcctDTO fundAcctDTO = (FundAcctDTO)command;
Map<String, Object> model = new HashMap<String, Object>();
if (StringUtils.isEmpty(fundAcctDTO.getFundNo())) {
model.put("ERR", "账号编码不能为空！");
return new ModelAndView(getFormView(), model);
}
model.put("RES", "RES");
if (StringUtils.isEmpty(fundAcctDTO.getFundName())) {
model.put("account", randomNote(33, 6, 5));
model.put("blue", randomNote(16, 1, 5));
}
return new ModelAndView(getSuccessView(), model);
}
private static List<String> ls_ball = new LinkedList<String>();
private static void init(int range) {
ls_ball.clear();
for (int i = 1; i <= range; i++) {
ls_ball.add(i<10?"0"+i:""+i);
}
}
public static void main(String[] args) {
System.out.println(getVal(33, 6));
randomNote(33, 6, 1);
randomNote(16, 1, 1);
}
private static String[] randomNote(int range, int number, int numbers) {
String[] result = new String[numbers];
for (int i = 0; i < numbers; i++) {
result[i] = randomNum(number, range);
System.out.println(result[i]);
}
return result;
}
private static String randomNum(int number, int range) {
init(range);
StringBuilder result = new StringBuilder();
for (int i = 0; i < number; i++) {
int size = random(ls_ball.size());
result.append(", ").append(ls_ball.get(size));
ls_ball.remove(size);
}
return result.substring(2);
}
private static int random(int deep) {
return (int)(Math.random() * deep);
}
private static String getStrVal(int num1, int num2) {
if (num1 == 1) {
return "1";
}
StringBuilder result = new StringBuilder();
for (int i = 1; i <= num2; i++) {
result.append("-").append(num1--);
}
return result.substring(1);
}
private static int getVal(int num1, int num2) {
String str1 = getStrVal(num1, num2);
String str2 = getStrVal(num2, num2-1);
int dividends = 1;
int divisors = 1;
int[] nums1 = getVal(str1);
int[] nums2 = getVal(str2);
for (int i = 0; i < nums2.length; i++) {
for (int j = 0; j < nums1.length; j++) {
if (nums1[j] % nums2[i] == 0) {
nums1[j] = nums1[j] / nums2[i];
nums2[i] = 1;
break;
}
}
}
for (int n1 : nums1) {
dividends *= n1;
}
for (int n2 : nums2) {
divisors *= n2;
}
return dividends / divisors;
}
private static int[] getVal(String str) {
String[] strs = str.split("-");
int size = strs.length;
int[] nums = new int[size];
for (int i = 0; i < size; i++) {
nums[i] = Integer.parseInt(strs[i]);
}
return nums;
}
private static void px(String targetStr, int number) {
StringBuilder sb = new StringBuilder();
String src = null;
for (int i = 1; i <= number; i++) {
src = i<10?"0"+i:""+i;
if (targetStr.contains(src)) {
sb.append(", ").append(src);
}
}
System.out.println(sb.substring(2));
}
}